Author: "K., Sach" / Topic: particle physics - Searchworks@Jio Institute Digital Library Search Results

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33 results on '"K., Sach"'

1. Measurement of the hadronic photon structure function F2γ at LEP2

Author: Abbiendi, G., Ainsley, C., Akesson, P. F., Alexander, G., Allison, J., Anagnostou, G., Anderson, K. J., Asai, S., Axen, D., Azuelos, G., Bailey, I., Barberio, E., Barlow, R. J., Batley, R. J., Bechtle, P., Behnke, T., Bell, K. W., Bell, P. J., Bella, G., Bellerive, A., Benelli, G., Bethke, S., Biebel, O., Bloodworth, I. J., Boeriu, O., Bock, P., Bonacorsi, D., Boutemeur, M., Braibant, S., Brigliadori, L., Brown, R. M., Buesser, K., Burckhart, H. J., Cammin, J., Campana, S., Carnegie, R. K., Caron, B., Carter, A. A., Carter, J. R., Chang, C. Y., Charlton, D. G., Cohen, I., Csilling, A., Cuffiani, M., Dado, S., Dallavalle, G. M., Dallison, S., Roeck, A., Wolf, E. A., Desch, K., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I. P., Etzion, E., Fabbri, F., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Furtjes, A., Gagnon, P., Gary, J. W., Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Giunta, M., Goldberg, J., Gross, E., Grunhaus, J., Gruwe, M., Gunther, P. O., Gupta, A., Hajdu, C., Hamann, M., Hanson, G. G., Harder, K., Harel, A., Harin-Dirac, M., Hauschild, M., Hauschildt, J., Hawkes, C. M., Hawkings, R., Hemingway, R. J., Hensel, C., Herten, G., Heuer, R. D., Hill, J. C., Hoffman, K., Homer, R. J., Horvath, D., Howard, R., Huntemeyer, P., Igo-Kemenes, P., Ishii, K., Jeremie, H., Jones, C. R., Jovanovic, P., Junk, T. R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Keeler, R. K., Kellogg, R. G., Kennedy, B. W., Kim, D. H., Klein, K., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Kokott, T. P., Komamiya, S., Kormos, L., Kowalewski, R. V., Kramer, T., Kress, T., Krieger, P., Krogh, J., Krop, D., Kuhl, T., Kupper, M., Kyberd, P., Lafferty, G. D., Landsman, H., Lanske, D., Layter, J. G., Leins, A., Lellouch, D., Letts, J., Levinson, L., Lillich, J., Littlewood, C., Lloyd, S. L., Loebinger, F. K., Lu, J., Ludwig, J., Macchiolo, A., Macpherson, A., Mader, W., Marcellini, S., Marchant, T. E., Martin, A. J., Martin, J. P., Masetti, G., Mashimo, T., Mattig, P., Mcdonald, W. J., Mckenna, J., Mcmahon, T. J., Mcpherson, R. A., Meijers, F., Mendez-Lorenzo, P., Menges, W., Merritt, F. S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D. J., Moed, S., Mohr, W., Mori, T., Mutter, A., Nagai, K., Nakamura, I., Neal, H. A., Nisius, R., O Neale, S. W., Oh, A., Okpara, A., Oreglia, M. J., Orito, S., Pahl, C., Pasztor, G., Pater, J. R., Patrick, G. N., Pilcher, J. E., Pinfold, J., Plane, D. E., Poli, B., Polok, J., Pooth, O., Quadt, A., Rabbertz, K., Rembser, C., Renkel, P., Rick, H., Roney, J. M., Rosati, S., Rozen, Y., Runge, K., Rust, D. R., Sachs, K., Saeki, T., Sahr, O., Sarkisyan, E. K. G., Schaile, A. D., Schaile, O., Scharff-Hansen, P., Schroder, M., Schumacher, M., Schwick, C., Scott, W. G., Seuster, R., Shears, T. G., Shen, B. C., Shepherd-Themistocleous, C. H., Sherwood, P., Siroli, G., Skuja, A., Smith, A. M., Sobie, R., Soldner-Rembold, S., stefania spagnolo, Spano, F., Stahl, A., Stephens, K., Strom, D., Strohmer, R., Tarem, S., Tasevsky, M., Taylor, R. J., Teuscher, R., Thomson, M. A., Torrence, E., Toya, D., Tran, P., Trefzger, T., Tricoli, A., Trigger, I., Trocsanyi, Z., Tsur, E., Turner-Watson, M. F., Ueda, I., Ujvari, B., Vachon, B., Vollmer, C. F., Vannerem, P., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C. P., Ward, D. R., Watkins, P. M., Watson, A. T., Watson, N. K., Wells, P. S., Wengler, T., Wermes, N., Wetterling, D., Wilson, G. W., Wilson, J. A., Wyatt, T. R., Yamashita, S., Zacek, V., Zer-Zion, D., Opal Collaboration, G., Abbiendi, C., Ainsley, P. F., Akesson, G., Alexander, J., Allison, G., Anagnostou, K. J., Anderson, S., Asai, D., Axen, G., Azuelo, I., Bailey, E., Barberio, R. J., Barlow, R. J., Batley, P., Bechtle, T., Behnke, K. W., Bell, P. J., Bell, G., Bella, A., Bellerive, G., Benelli, S., Bethke, O., Biebel, I. J., Bloodworth, O., Boeriu, P., Bock, D., Bonacorsi, M., Boutemeur, S., Braibant, L., Brigliadori, R. M., Brown, K., Buesser, H. J., Burckhart, J., Cammin, S., Campana, R. K., Carnegie, B., Caron, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, I., Cohen, A., Csilling, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, A., De Roeck, E. A., De, K., Desch, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, E., Etzion, F., Fabbri, L., Feld, P., Ferrari, F., Fiedler, I., Fleck, M., Ford, A., Frey, A., Furtje, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, M., Giunta, J., Goldberg, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, A., Gupta, C., Hajdu, M., Hamann, G. G., Hanson, K., Harder, A., Harel, M., Harin Dirac, M., Hauschild, J., Hauschildt, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, J. C., Hill, K., Hoffman, R. J., Homer, D., Horvath, R., Howard, P., Huntemeyer, P., Igo Kemene, K., Ishii, H., Jeremie, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, K., Klein, A., Klier, S., Kluth, T., Kobayashi, M., Kobel, T. P., Kokott, S., Komamiya, L., Kormo, R. V., Kowalewski, T., Kramer, T., Kre, P., Krieger, J., von Krogh, D., Krop, T., Kuhl, M., Kupper, P., Kyberd, G. D., Lafferty, H., Landsman, D., Lanske, J. G., Layter, A., Lein, D., Lellouch, J., Lett, L., Levinson, J., Lillich, C., Littlewood, S. L., Lloyd, F. K., Loebinger, J., Lu, J., Ludwig, A., Macchiolo, A., Macpherson, W., Mader, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Masetti, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, W., Menge, F. S., Merritt, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, S., Moed, W., Mohr, T., Mori, A., Mutter, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, A., Oh, A., Okpara, M. J., Oreglia, S., Orito, C., Pahl, G., Pasztor, J. R., Pater, G. N., Patrick, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, O., Pooth, A., Quadt, K., Rabbertz, C., Rembser, P., Renkel, H., Rick, J. M., Roney, S., Rosati, Y., Rozen, K., Runge, D. R., Rust, K., Sach, T., Saeki, O., Sahr, E. K., G., A. D., Schaile, O., Schaile, P., Scharff Hansen, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, G., Siroli, A., Skuja, A. M., Smith, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, F., Spano, A., Stahl, K., Stephen, D., Strom, R., Strohmer, S., Tarem, M., Tasevsky, R. J., Taylor, R., Teuscher, M. A., Thomson, E., Torrence, D., Toya, P., Tran, T., Trefzger, A., Tricoli, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, B., Ujvari, B., Vachon, C. F., Vollmer, P., Vannerem, M., Verzocchi, H., Vo, J., Vossebeld, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, G. W., Wilson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, D., Zer Zion, and OPAL Collaboration
Subjects: Quantum chromodynamics, Physics, Particle physics, Nuclear and High Energy Physics, Photon, Scattering, Hadron, Gamma ray, Function (mathematics), Deep inelastic scattering, Particle Physics - Experiment, Photon structure function
Abstract: The hadronic structure of the photon F2gamma is measured as a function of Bjorken x and of the photon virtuality Q2 using deep-inelastic scattering data taken by the OPAL detector at LEP at e+e- centre-of-mass energies from 183 to 209 GeV. Previous OPAL measurements of the x dependence of F2gamma are extended to an average Q2 of =780GeV2 using data in the kinematic range 0.15 < x < 0.98. The Q2 evolution of F2gamma is studied for 12.1 < < 780GeV2 using three ranges of x. As predicted by QCD, the data show positive scaling violations in F2gamma for the central x region 0.10-0.60. Several parameterisations of F2gamma are in qualitative agreement with the measurements whereas the quark-parton model prediction fails to describe the data. The hadronic structure function of the photon F 2 γ ( x , Q 2 ) is measured as a function of Bjorken x and of the photon virtuality Q 2 using deep-inelastic scattering data taken by the OPAL detector at LEP at e + e − centre-of-mass energies from 183 to 209 GeV. Previous OPAL measurements of the x dependence of F 2 γ are extended to an average Q 2 of 〈 Q 2 〉=780 GeV 2 using data in the kinematic range 0.15< x =780GeV2 using data in the kinematic range 0.15 < x < 0.98. The Q2 evolution of F2gamma is studied for 12.1 < < 780GeV2 using three ranges of x. As predicted by QCD, the data show positive scaling violations in F2gamma for the central x region 0.10-0.60. Several parameterisations of F2gamma are in qualitative agreement with the measurements whereas the quark-parton model prediction fails to describe the data.
Published: 2002
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2. Measurement of the hadronic cross-section for the scattering of two virtual photons at LEP

Author: Abbiendi, G., Ainsley, C., Akesson, P.F., Alexander, G., Allison, John, Anagnostou, G., Anderson, K.J., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Bailey, I., Barberio, E., Barlow, R.J., Batley, R.J., Behnke, T., Bell, Kenneth Watson, Bell, P.J., Bella, G., Bellerive, A., Bethke, S., Biebel, O., Bloodworth, I.J., Boeriu, O., Bock, P., Bohme, J., Bonacorsi, D., Boutemeur, M., Braibant, S., Brigliadori, L., Brown, Robert M., Burckhart, H.J., Cammin, J., Carnegie, R.K., Caron, B., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Clarke, P.E.L., Clay, E., Cohen, I., Couchman, J., Csilling, A., Cuffiani, M., Dado, S., Dallavalle, G.Marco, Dallison, S., De Roeck, A., De Wolf, E.A., Dervan, P., Desch, K., Dienes, B., Dixit, M.S., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Etzion, E., Fabbri, F., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Glenzinski, D., Goldberg, J., Graham, K., Gross, E., Grunhaus, J., Gruwe, M., Gunther, P.O., Gupta, A., Hajdu, C., Hamann, M., Hanson, G.G., Harder, K., Harel, A., Harin-Dirac, M., Hauschild, M., Hauschildt, J., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Hensel, C., Herten, G., Heuer, R.D., Hill, J.C., Hoffman, Kara Dion, Homer, R.J., Horvath, D., Hossain, K.R., Howard, R., Huntemeyer, P., Igo-Kemenes, P., Ishii, K., Jawahery, A., Jeremie, H., Jones, C.R., Jovanovic, P., Junk, T.R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kim, D.H., Klein, K., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Kokott, T.P., Komamiya, S., Kowalewski, Robert V., Kramer, T., Kress, T., Krieger, P., von Krogh, J., Krop, D., Kuhl, T., Kupper, M., Kyberd, P., Lafferty, G.D., Landsman, H., Lanske, D., Lawson, I., Layter, J.G., Leins, A., Lellouch, D., Letts, J., Levinson, L., Lillich, J., Littlewood, C., Lloyd, S.L., Loebinger, F.K., Long, G.D., Losty, M.J., Lu, J., Ludwig, J., Macchiolo, A., Macpherson, A., Mader, W., Marcellini, S., Marchant, T.E., Martin, A.J., Martin, J.P., Martinez, G., Masetti, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., McMahon, T.J., McPherson, R.A., Meijers, F., Mendez-Lorenzo, P., Menges, W., Merritt, F.S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Moed, S., Mohr, W., Mori, T., Mutter, A., Nagai, K., Nakamura, I., Neal, H.A., Nisius, R., O'Neale, S.W., Oh, A., Okpara, A., Oreglia, M.J., Orito, S., Pahl, C., Pasztor, G., Pater, J.R., Patrick, G.N., Pilcher, J.E., Pinfold, J., Plane, David E., Poli, B., Polok, J., Pooth, O., Przybycien, M., Quadt, A., Rabbertz, K., Rembser, C., Renkel, P., Rick, H., Rodning, N., Roney, J.M., Rosati, S., Roscoe, K., Rozen, Y., Runge, K., Rust, D.R., Sachs, K., Saeki, T., Sahr, O., Sarkisyan, E.K.G., Sbarra, C., Schaile, A.D., Schaile, O., Scharff-Hansen, P., Schroder, Matthias, Schumacher, M., Schwick, C., Scott, W.G., Seuster, R., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Spagnolo, S., Spano, F., Sproston, M., Stahl, A., Stephens, K., Strom, David M., Strohmer, R., Stumpf, L., Surrow, B., Tarem, S., Tasevsky, M., Taylor, R.J., Teuscher, R., Thomas, J., Thomson, M.A., Torrence, E., Toya, D., Trefzger, T., Tricoli, A., Trigger, I., Trocsanyi, Z., Tsur, E., Turner-Watson, M.F., Ueda, I., Ujvari, B., Vachon, B., Vollmer, C.F., Vannerem, P., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wengler, T., Wermes, N., Wetterling, D., Wilson, G.W., Wilson, J.A., Wyatt, T.R., Yamashita, S., Zacek, V., Zer-Zion, D., G., Abbiendi, C., Ainsley, P. F., Akesson, G., Alexander, J., Allison, G., Anagnostou, K. J., Anderson, S., Arcelli, S., Asai, D., Axen, G., Azuelo, I., Bailey, E., Barberio, R. J., Barlow, R. J., Batley, T., Behnke, K. W., Bell, P. J., Bell, G., Bella, A., Bellerive, S., Bethke, O., Biebel, I. J., Bloodworth, O., Boeriu, P., Bock, J., Bohme, D., Bonacorsi, M., Boutemeur, S., Braibant, L., Brigliadori, R. M., Brown, H. J., Burckhart, J., Cammin, R. K., Carnegie, B., Caron, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, P. E., L., E., Clay, I., Cohen, J., Couchman, A., Csilling, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, A., De Roeck, E. A., De, P., Dervan, K., Desch, B., Diene, M. S., Dixit, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, E., Etzion, F., Fabbri, L., Feld, P., Ferrari, F., Fiedler, I., Fleck, M., Ford, A., Frey, A., Furtje, D. I., Futyan, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, D., Glenzinski, J., Goldberg, K., Graham, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, A., Gupta, C., Hajdu, M., Hamann, G. G., Hanson, K., Harder, A., Harel, M., Harin Dirac, M., Hauschild, J., Hauschildt, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, J. C., Hill, K., Hoffman, R. J., Homer, D., Horvath, K. R., Hossain, R., Howard, P., Huntemeyer, P., Igo Kemene, K., Ishii, A., Jawahery, H., Jeremie, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, K., Klein, A., Klier, S., Kluth, T., Kobayashi, M., Kobel, T. P., Kokott, S., Komamiya, R. V., Kowalewski, T., Kramer, T., Kre, P., Krieger, J., von Krogh, D., Krop, T., Kuhl, M., Kupper, P., Kyberd, G. D., Lafferty, H., Landsman, D., Lanske, I., Lawson, J. G., Layter, A., Lein, D., Lellouch, J., Lett, L., Levinson, J., Lillich, C., Littlewood, S. L., Lloyd, F. K., Loebinger, G. D., Long, M. J., Losty, J., Lu, J., Ludwig, A., Macchiolo, A., Macpherson, W., Mader, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Martinez, G., Masetti, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, W., Menge, F. S., Merritt, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, S., Moed, W., Mohr, T., Mori, A., Mutter, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, A., Oh, A., Okpara, M. J., Oreglia, S., Orito, C., Pahl, G., Pasztor, J. R., Pater, G. N., Patrick, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, O., Pooth, M., Przybycien, A., Quadt, K., Rabbertz, C., Rembser, P., Renkel, H., Rick, N., Rodning, J. M., Roney, S., Rosati, K., Roscoe, Y., Rozen, K., Runge, D. R., Rust, K., Sach, T., Saeki, O., Sahr, E. K., G., C., Sbarra, A. D., Schaile, O., Schaile, P., Scharff Hansen, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, A., Skuja, A. M., Smith, G. A., Snow, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, F., Spano, M., Sproston, A., Stahl, K., Stephen, D., Strom, R., Strohmer, L., Stumpf, B., Surrow, S., Tarem, M., Tasevsky, R. J., Taylor, R., Teuscher, J., Thoma, M. A., Thomson, E., Torrence, D., Toya, T., Trefzger, A., Tricoli, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, B., Ujvari, B., Vachon, C. F., Vollmer, P., Vannerem, M., Verzocchi, H., Vo, J., Vossebeld, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, G. W., Wilson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, and D., Zer Zion
Subjects: Quark, Physics, Quantum chromodynamics, Particle physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Scattering, High Energy Physics::Phenomenology, Hadron, Monte Carlo method, FOS: Physical sciences, Virtual particle, Parton, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Cross section (physics), 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Engineering (miscellaneous), Particle Physics - Experiment
Abstract: The interaction of virtual photons is investigated using the reaction e+e- -> e+e- hadrons based on data taken by the OPAL experiment at e+e- centre-of-mass energies sqrt(s_ee)=189-209 GeV, for W>5 GeV and at an average Q^2 of 17.9 GeV^2. The measured cross-sections are compared to predictions of the Quark Parton Model (QPM), to the Leading Order QCD Monte Carlo model PHOJET to the NLO prediction for the reaction e+e- -> e+e-qqbar, and to BFKL calculations. PHOJET, NLO e+e- -> e+e-qqbar, and QPM describe the data reasonably well, whereas the cross-section predicted by a Leading Order BFKL calculation is too large., 30 pages, 10 figures, Submitted to Eur.Phys.J. C
Published: 2002

3. Search for doubly charged Higgs bosons with the OPAL detector at LEP

Author: Abbiendi, G., Ainsley, C., Åkesson, P. F., Alexander, G., Allison, J., Anagnostou, G., Anderson, K. J., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Bailey, I., Barberio, E., Barlow, R. J., Batley, R. J., Bechtle, P., Behnke, T., Bell, K. W., Bell, P. J., Bella, G., Bellerive, A., Benelli, G., Bethke, S., Biebel, O., Bloodworm, I. J., Boeriu, O., Bock, P., Böhme, J., Bonacorsi, D., Boutemeur, M., Braibant, S., Brigliadori, L., Brown, R. M., Burckhart, H. J., Cammin, J., Campana, S., Carnegie, R. K., Caron, B., Carter, A. A., Carter, J. R., Chang, C. Y., Charlton, D. G., Clarke, P. E. L., Clay, E., Cohen, I., Couchman, J., Csilling, A., Cuffiani, M., Dado, S., Dallavalle, G. M., Dallison, S., Roeck, A., Woif, E. A., Dervan, P., Desch, K., Dienes, B., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I. P., Etzion, E., Fabbri, F., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Fürtjes, A., Futyan, D. I., Gagnon, P., Gary, J. W., Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Paolo Giacomelli, Giunta, M., Goldberg, J., Graham, K., Gross, E., Grunhaus, J., Gruwé, M., Günther, P. O., Gupta, A., Hajdu, C., Hamann, M., Hanson, G. G., Harder, K., Harel, A., Harin-Dirac, M., Hauschild, M., Hauschildt, J., Hawkes, C. M., Hawkings, R., Hemingways, R. J., Hensel, C., Herten, G., Heuer, R. D., Hill, J. C., Hoffman, K., Homer, R. J., Horváth, D., Hossain, K. R., Howard, R., Huntemeyer, P., Igo-Kemenes, P., Ishii, K., Jawahery, A., Jeremie, H., Jones, C. R., Jovanovic, P., Junk, T. R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Keeler, R. K., Kellogg, R. G., Kennedy, B. W., Kimr, D. H., Kleine, K., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Kokott, T. P., Komamiya, S., Kowalewski, R. V., Krämer, T., Kress, T., Krieger, P., Krogh, J., Krop, D., Kuhl, T., Küpper, M., Kyberd, P., Lafferty, G. D., Landsman, H., Lanske, D., Lawson, I., Layter, J. G., Leins, A., Lellouch, D., Letts, J., Levinson, L., Lillich, J., Littlewood, C., Lloyd, S. L., Loebinger, F. K., Lu, J., Ludwig, J., Macchiolo, A., Macpherson, A., Mader, W., Marcellini, S., Marchant, T. E., Martin, A. J., Martin, J. P., Martinez, G., Masetti, G., Mashimo, T., Mättig, P., Mcdonald, W. J., Mckenna, J., Mcmahon, T. J., Mcpherson, R. A., Meijers, F., Mendez-Lorenzo, P., Menges, W., Merritt, E. S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D. J., Moed, S., Mohr, W., Mori, T., Mutter, A., Nagai, K., Nakamura, I., Neal, H. A., Nisius, R., O Neale, S. W., Oh, A., Okpara, A., Oreglia, M. J., Orito, S., Pahl, C., Pásztor, G., Pater, J. R., Patrick, G. N., Pilcher, J. E., Pinfold, J., Plane, D. E., Poli, B., Polok, J., Pooth, O., Quadt, A., Rabbertz, K., Rembser, C., Renkel, P., Rick, H., Rodning, N., Roney, J. M., Rosati, S., Roscoe, K., Rozen, Y., Runge, K., Rust, D. R., Sachs, K., Saeki, T., Sahr, O., Sarkisyan, E. K. G., Schaue, A. D., Schaue, O., Scharff-Hansen, P., Schröder, M., Schumacher, M., Schwick, C., Scott, W. G., Seuster, R., Shears, T. G., Shen, B. C., Shepherd-Themistocleous, C. H., Sherwood, P., Skuja, A., Smith, A. M., Snow, G. A., Sobie, R., Söldner-Rembold, S., Spagnolo, S., Spano, F., Sproston, M., Stahl, A., Stephens, K., Strom, D., Ströhmer, R., Stumpf, L., Surrow, B., Tarem, S., Tasevsky, M., Taylor, R. J., Teuscher, R., Thomas, J., Thomson, M. A., Torrence, E., Toya, D., Trefzger, T., Tricoli, A., Trigger, I., Trócsányi, Z., Tsur, E., Turner-Watson, M. F., Ueda, I., Ujvári, B., Vachon, B., Vollmer, C. F., Vannerem, P., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C. P., Ward, D. R., Watkins, P. M., Watson, A. T., Watson, N. K., Wells, P. S., Wengler, T., Wermes, N., Weiterung, D., Wilson, G. W., Wilson, J. A., Wyatt, T. R., Yamashita, S., Zacek, V., Zer-Zion, D., G., Abbiendi, C., Ainsley, P. F., Akesson, G., Alexander, J., Allison, G., Anagnostou, K. J., Anderson, S., Arcelli, S., Asai, D., Axen, G., Azuelo, I., Bailey, E., Barberio, R. J., Barlow, R. J., Batley, P., Bechtle, T., Behnke, K. W., Bell, P. J., Bell, G., Bella, A., Bellerive, G., Benelli, S., Bethke, O., Biebel, I. J., Bloodworth, O., Boeriu, P., Bock, J., Bohme, D., Bonacorsi, M., Boutemeur, S., Braibant, L., Brigliadori, R. M., Brown, H. J., Burckhart, J., Cammin, S., Campana, R. K., Carnegie, B., Caron, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, P. E., L., E., Clay, I., Cohen, J., Couchmann, A., Csilling, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, A., De Roeck, E. A., De, P., Dervan, K., Desch, B., Diene, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, E., Etzion, F., Fabbri, L., Feld, P., Ferrari, F., Fiedler, I., Fleck, M., Ford, A., Frey, A., Furtje, D. I., Futyan, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, M., Giunta, J., Goldberg, K., Graham, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, A., Gupta, C., Hajdu, M., Hamann, G. G., Hanson, K., Harder, A., Harel, M., Harin Dirac, M., Hauschild, J., Hauschildt, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, J. C., Hill, K., Hoffman, R. J., Homer, D., Horvath, K. R., Hossain, R., Howard, P., Huntemeyer, P., Igo Kemene, K., Ishii, A., Jawahery, H., Jeremie, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, K., Klein, A., Klier, S., Kluth, T., Kobayashi, M., Kobel, T. P., Kokott, S., Komamiya, R. V., Kowalewski, T., Kramer, T., Kre, P., Krieger, J., von Krogh, D., Krop, T., Kuhl, M., Kupper, P., Kyberd, G. D., Lafferty, H., Landsman, D., Lanske, I., Lawson, J. G., Layter, A., Lein, D., Lellouch, J., Lett, L., Levinson, J., Lillich, C., Littlewood, S. L., Lloyd, F. K., Loebinger, J., Lu, J., Ludwig, A., Macchiolo, A., Macpherson, W., Mader, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Martinez, G., Masetti, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, W., Menge, F. S., Merritt, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, S., Moed, W., Mohr, T., Mori, A., Mutter, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, A., Oh, A., Okpara, M. J., Oreglia, S., Orito, C., Pahl, G., Pasztor, J. R., Pater, G. N., Patrick, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, O., Pooth, A., Quadt, K., Rabbertz, C., Rembser, P., Renkel, H., Rick, N., Rodning, J. M., Roney, S., Rosati, K., Roscoe, Y., Rozen, K., Runge, D. R., Rust, K., Sach, T., Saeki, O., Sahr, E. K., G., A. D., Schaile, O., Schaile, P., Scharff Hansen, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, A., Skuja, A. M., Smith, G. A., Snow, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, F., Spano, M., Sproston, A., Stahl, K., Stephen, D., Strom, R., Strohmer, L., Stumpf, B., Surrow, S., Tarem, M., Tasevsky, R. J., Taylor, R., Teuscher, J., Thoma, M. A., Thomson, E., Torrence, D., Toya, T., Trefzger, A., Tricoli, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, B., Ujvari, B., Vachon, C. F., Vollmer, P., Vannerem, M., Verzocchi, H., Vo, J., Vossebeld, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, G. W., Wilson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, D., Zer Zion, and OPAL Collaboration
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Detector, FOS: Physical sciences, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Higgs boson, High Energy Physics::Experiment, 010306 general physics, Particle Physics - Experiment, Boson
Abstract: A search for pair-produced doubly charged Higgs bosons has been performed using data samples corresponding to an integrated luminosity of about 614 pb-1 collected with the OPAL detector at LEP at centre-of-mass energies between 189GeV and 209GeV. No evidence for a signal has been observed. A mass limit of 98.5GeV/c2 at the 95% confidence level has been set for the doubly charged Higgs particle in left-right symmetric models. This is the first search for doubly charged Higgs bosons at centre-of-mass energies larger than 91GeV., Comment: 19 pages, 4 figures, Submitted to Phys. Lett. B
Published: 2002

4. Angular analysis of the muon pair asymmetry at LEP 1

Author: G. Abbiendi, C. Ainsley, P.F. Åkesson, G. Alexander, J. Allison, G. Anagnostou, K.J. Anderson, S. Arcelli, S. Asai, D. Axen, G. Azuelos, I. Bailey, E. Barberio, R.J. Barlow, R.J. Batley, T. Behnke, K.W. Bell, P.J. Bell, G. Bella, A. Bellerive, S. Bethke, O. Biebel, I.J. Bloodworth, O. Boeriu, P. Bock, J. Böhme, D. Bonacorsi, M. Boutemeur, S. Braibant, L. Brigliadori, R.M. Brown, H.J. Burckhart, J. Cammin, R.K. Carnegie, B. Caron, A.A. Carter, J.R. Carter, C.Y. Chang, D.G. Charlton, P.E.L. Clarke, E. Clay, I. Cohen, J. Couchman, A. Csilling, M. Cuffiani, S. Dado, G.M. Dallavalle, S. Dallison, A. De Roeck, E.A. De Wolf, P. Dervan, K. Desch, B. Dienes, M.S. Dixit, M. Donkers, J. Dubbert, E. Duchovni, G. Duckeck, I.P. Duerdoth, E. Etzion, F. Fabbri, L. Feld, P. Ferrari, F. Fiedler, I. Fleck, M. Ford, A. Frey, A. Fürtjes, D.I. Futyan, P. Gagnon, J.W. Gary, G. Gaycken, C. Geich-Gimbel, G. Giacomelli, P. Giacomelli, D. Glenzinski, J. Goldberg, K. Graham, E. Gross, J. Grunhaus, M. Gruwé, P.O. Günther, A. Gupta, C. Hajdu, M. Hamann, G.G. Hanson, K. Harder, A. Harel, M. Harin-Dirac, M. Hauschild, J. Hauschildt, C.M. Hawkes, R. Hawkings, R.J. Hemingway, C. Hensel, G. Herten, R.D. Heuer, J.C. Hill, K. Hoffman, R.J. Homer, D. Horváth, K.R. Hossain, R. Howard, P. Hüntemeyer, P. Igo-Kemenes, K. Ishii, A. Jawahery, H. Jeremie, C.R. Jones, P. Jovanovic, T.R. Junk, N. Kanaya, J. Kanzaki, G. Karapetian, D. Karlen, V. Kartvelishvili, K. Kawagoe, T. Kawamoto, R.K. Keeler, R.G. Kellogg, B.W. Kennedy, D.H. Kim, K. Klein, A. Klier, S. Kluth, T. Kobayashi, M. Kobel, T.P. Kokott, S. Komamiya, R.V. Kowalewski, T. Krämer, T. Kress, P. Krieger, J. von Krogh, D. Krop, T. Kuhl, M. Kupper, P. Kyberd, G.D. Lafferty, H. Landsman, D. Lanske, I. Lawson, J.G. Layter, A. Leins, D. Lellouch, J. Letts, L. Levinson, J. Lillich, C. Littlewood, S.L. Lloyd, F.K. Loebinger, G.D. Long, M.J. Losty, J. Lu, J. Ludwig, A. Macchiolo, A. Macpherson, W. Mader, S. Marcellini, T.E. Marchant, A.J. Martin, J.P. Martin, G. Martinez, G. Masetti, T. Mashimo, P. Mättig, W.J. McDonald, J. McKenna, T.J. McMahon, R.A. McPherson, F. Meijers, P. Mendez-Lorenzo, W. Menges, F.S. Merritt, H. Mes, A. Michelini, S. Mihara, G. Mikenberg, D.J. Miller, S. Moed, W. Mohr, T. Mori, A. Mutter, K. Nagai, I. Nakamura, H.A. Neal, R. Nisius, S.W. O'Neale, A. Oh, A. Okpara, M.J. Oreglia, S. Orito, C. Pahl, G. Pásztor, J.R. Pater, G.N. Patrick, J.E. Pilcher, J. Pinfold, D.E. Plane, B. Poli, J. Polok, O. Pooth, A. Quadt, K. Rabbertz, C. Rembser, P. Renkel, H. Rick, N. Rodning, J.M. Roney, S. Rosati, K. Roscoe, Y. Rozen, K. Runge, D.R. Rust, K. Sachs, T. Saeki, O. Sahr, E.K.G. Sarkisyan, C. Sbarra, A.D. Schaile, O. Schaile, P. Scharff-Hansen, M. Schröder, M. Schumacher, C. Schwick, W.G. Scott, R. Seuster, T.G. Shears, B.C. Shen, C.H. Shepherd-Themistocleous, P. Sherwood, A. Skuja, A.M. Smith, G.A. Snow, R. Sobie, S. Söldner-Rembold, S. Spagnolo, F. Spano, M. Sproston, A. Stahl, K. Stephens, D. Strom, R. Ströhmer, L. Stumpf, B. Surrow, S. Tarem, M. Tasevsky, R.J. Taylor, R. Teuscher, J. Thomas, M.A. Thomson, E. Torrence, D. Toya, T. Trefzger, A. Tricoli, I. Trigger, Z. Trócsányi, E. Tsur, M.F. Turner-Watson, I. Ueda, B. Ujvári, B. Vachon, C.F. Vollmer, P. Vannerem, M. Verzocchi, H. Voss, J. Vossebeld, D. Waller, C.P. Ward, D.R. Ward, P.M. Watkins, A.T. Watson, N.K. Watson, P.S. Wells, T. Wengler, N. Wermes, D. Wetterling, G.W. Wilson, J.A. Wilson, T.R. Wyatt, S. Yamashita, V. Zacek, D. Zer-Zion, G., Abbiendi, C., Ainsley, P. F., Akesson, G., Alexander, J., Allison, G., Anagnostou, K. J., Anderson, S., Arcelli, S., Asai, D., Axen, G., Azuelo, I., Bailey, E., Barberio, R. J., Barlow, R. J., Batley, T., Behnke, K. W., Bell, P. J., Bell, G., Bella, A., Bellerive, S., Bethke, O., Biebel, I. J., Bloodworth, O., Boeriu, P., Bock, J., Bohme, D., Bonacorsi, M., Boutemeur, S., Braibant, L., Brigliador, R. M., Brown, H. J., Burckhart, J., Cammin, R. K., Carnegie, B., Caron, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, P. E., L., E., Clay, I., Cohen, J., Couchman, A., Csilling, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, A., De Roeck, E. A., De, P., Dervan, K., Desch, B., Diene, M. S., Dixit, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, E., Etzion, F., Fabbri, L., Feld, P., Ferrari, F., Fiedler, I., Fleck, M., Ford, A., Frey, A., Furtje, D. I., Futyan, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, D., Glenzinski, J., Goldberg, K., Graham, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, A., Gupta, C., Hajdu, M., Hamann, G. G., Hanson, K., Harder, A., Harel, M., Harin Dirac, M., Hauschild, J., Hauschildt, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, J. C., Hill, K., Hoffman, R. J., Homer, D., Horvath, K. R., Hossain, R., Howard, P., Huntemeyer, P., Igo Kemene, K., Ishii, A., Jawahery, H., Jeremie, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, K., Klein, A., Klier, S., Kluth, T., Kobayashi, M., Kobel, T. P., Kokott, S., Komamiya, R. V., Kowalewski, T., Kramer, T., Kre, P., Krieger, J., van Krogh, D., Krop, T., Kuhl, M., Kupper, P., Kyberd, G. D., Lafferty, H., Landsman, D., Lanske, I., Lawson, J. G., Layter, A., Lein, D., Lellouch, J., Lett, L., Levinson, J., Lillich, C., Littlewood, S. L., Lloyd, F. K., Loebinger, G. D., Long, M. J., Losty, J., Lu, J., Ludwig, A., Macchiolo, A., Macpherson, W., Mader, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Martinez, G., Masetti, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, W., Menge, F. S., Merritt, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, S., Moed, W., Mohr, T., Mori, A., Mutter, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, A., Oh, A., Okpara, M. J., Oreglia, S., Orito, C., Pahl, G., Pasztor, J. R., Pater, G. N., Patrick, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, O., Pooth, A., Quadt, K., Rabbertz, C., Rembser, P., Renkel, H., Rick, N., Rodning, J. M., Roney, S., Rosati, K., Roscoe, Y., Rozen, K., Runge, D. R., Rust, K., Sach, T., Saeki, O., Sahr, E. K., G., C., Sbarra, A. D., Schaile, O., Schaile, P., Scharff Hansen, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, A., Skuja, A. M., Smith, G. A., Snow, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, F., Spano, M., Sproston, A., Stahl, K., Stephen, D., Strom, R., Strohmer, L., Stumpf, B., Surrow, S., Tarem, M., Tasevsky, R. J., Taylor, R., Teuscher, J., Thoma, M. A., Thomson, E., Torrence, D., Toya, T., Trefzger, A., Tricoli, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, B., Ujvari, B., Vachon, C. F., Vollmer, P., Vannerem, M., Verzocchi, H., Vo, J., Vossebeld, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, G. W., Wilson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, D., Zer Zion, and OPAL Collaboration
Subjects: Physics, Particle physics, Nuclear and High Energy Physics, Muon, 010308 nuclear & particles physics, media_common.quotation_subject, Photon radiation, FOS: Physical sciences, Radiation, Interference (wave propagation), 01 natural sciences, Asymmetry, Standard Model, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Pair production, 0103 physical sciences, Invariant mass, High Energy Physics::Experiment, 010306 general physics, Particle Physics - Experiment, media_common
Abstract: Data on muon pair production obtained by the OPAL collaboration at centre of mass energies near the Z peak are analysed. Small angular mismatches between the directions of the two muons are used to assess the effects of initial state photon radiation and initial-final-state radiation interference on the forward-backward asymmetry of muon pairs. The dependence of the asymmetry on the invariant mass of the pair is measured in a model-independent way. Effective vector and axial-vector couplings of the Z boson are determined and compared to the Standard Model expectations., 31 pages, 8 figures, Accepted by Physics Letters B
Published: 2001
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5. Measurement of the mass and width of the W boson in e+e− collisions at 189 GeV

Author: Abbiendi, G., Ackerstaff, K., Ainsley, C., Akesson, P.F., Alexander, G., Allison, John, Anderson, K.J., Arcelli, S., Asai, S., Ashby, S.F., Axen, D., Azuelos, G., Bailey, I., Ball, A.H., Barberio, E., Barlow, Roger J., Baumann, S., Behnke, T., Bell, Kenneth Watson, Bella, G., Bellerive, A., Benelli, G., Bentvelsen, S., Bethke, S., Biebel, O., Bloodworth, I.J., Boeriu, O., Bock, P., Bohme, J., Bonacorsi, D., Boutemeur, M., Braibant, S., Bright-Thomas, P., Brigliadori, L., Brown, Robert M., Burckhart, H.J., Cammin, J., Capiluppi, P., Carnegie, R.K., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Clarke, P.E.L., Clay, E., Cohen, I., Cooke, O.C., Couchman, J., Couyoumtzelis, C., Coxe, R.L., Csilling, A., Cuffiani, M., Dado, S., Dallavalle, G.Marco, Dallison, S., de Roeck, A., de Wolf, E., Dervan, P., Desch, K., Dienes, B., Dixit, M.S., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Estabrooks, P.G., Etzion, E., Fabbri, F., Fanti, M., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Glenzinski, D., Goldberg, J., Grandi, C., Graham, K., Gross, E., Grunhaus, J., Gruwe, M., Gunther, P.O., Hajdu, C., Hanson, G.G., Hansroul, M., Hapke, M., Harder, K., Harel, A., Harin-Dirac, M., Hauke, A., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Hensel, C., Herten, G., Heuer, R.D., Hill, J.C., Hocker, James Andrew, Hoffman, Kara Dion, Homer, R.J., Honma, A.K., Horvath, D., Hossain, K.R., Howard, R., Huntemeyer, P., Igo-Kemenes, P., Ishii, K., Jacob, F.R., Jawahery, A., Jeremie, H., Jones, C.R., Jovanovic, P., Junk, T.R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kim, D.H., Klein, K., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Kokott, T.P., Komamiya, S., Kowalewski, Robert V., Kress, T., Krieger, P., von Krogh, J., Kuhl, T., Kupper, M., Kyberd, P., Lafferty, G.D., Landsman, H., Lanske, D., Lawson, I., Layter, J.G., Leins, A., Lellouch, D., Letts, J., Levinson, L., Liebisch, R., Lillich, J., List, B., Littlewood, C., Lloyd, A.W., Lloyd, S.L., Loebinger, F.K., Long, G.D., Losty, M.J., Lu, J., Ludwig, J., Macchiolo, A., Macpherson, A., Mader, W., Marcellini, S., Marchant, T.E., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., McMahon, T.J., McPherson, R.A., Meijers, F., Mendez-Lorenzo, P., Menges, W., Merritt, F.S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Mohr, W., Montanari, A., Mori, T., Nagai, K., Nakamura, I., Neal, H.A., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Oh, A., Okpara, A., Oreglia, M.J., Orito, S., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poli, B., Polok, J., Pooth, O., Przybycien, M., Quadt, A., Rembser, C., Renkel, P., Rick, H., Rodning, N., Roney, J.M., Rosati, S., Roscoe, K., Rossi, A.M., Rozen, Y., Runge, K., Runolfsson, O., Rust, D.R., Sachs, K., Saeki, T., Sahr, O., Sarkisyan, E.K.G., Sbarra, C., Schaile, A.D., Schaile, O., Scharff-Hansen, P., Schroder, Matthias, Schumacher, M., Schwick, C., Scott, W.G., Seuster, R., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G.P., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Spagnolo, S., Sproston, M., Stahl, A., Stephens, K., Stoll, K., Strom, David M., Strohmer, R., Stumpf, L., Surrow, B., Talbot, S.D., Tarem, S., Taylor, R.J., Teuscher, R., Thiergen, M., Thomas, J., Thomson, M.A., Torrence, E., Towers, S., Toya, D., Trefzger, T., Trigger, I., Trocsanyi, Z., Tsur, E., Turner-Watson, M.F., Ueda, I., Vachon, B., Vannerem, P., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wengler, T., Wermes, N., Wetterling, D., White, J.S., Wilson, G.W., Wilson, J.A., Wyatt, T.R., Yamashita, S., Zacek, V., Zer-Zion, D., G., Abbiendi, K., Ackerstaff, C., Ainsley, P. F., Akesson, G., Alexander, J., Allison, K. J., Anderson, S., Arcelli, S., Asai, S. F., Ashby, D., Axen, G., Azuelo, I., Bailey, A. H., Ball, E., Barberio, R. J., Barlow, S., Baumann, T., Behnke, K. W., Bell, G., Bella, A., Bellerive, G., Benelli, S., Bentvelsen, S., Bethke, O., Biebel, I. J., Bloodworth, O., Boeriu, P., Bock, J., Bohme, D., Bonacorsi, M., Boutemeur, S., Braibant, P., Bright Thoma, L., Brigliadori, R. M., Brown, H. J., Burckhart, J., Cammin, P., Capiluppi, R. K., Carnegie, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, P. E., L., E., Clay, I., Cohen, O. C., Cooke, J., Couchman, C., Couyoumtzeli, R. L., Coxe, A., Csilling, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, A., de Roeck, E., de Wolf, P., Dervan, K., Desch, B., Diene, M. S., Dixit, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, P. G., Estabrook, E., Etzion, F., Fabbri, M., Fanti, L., Feld, P., Ferrari, F., Fiedler, I., Fleck, M., Ford, A., Frey, A., Furtje, D. I., Futyan, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, D., Glenzinski, J., Goldberg, C., Grandi, K., Graham, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, C., Hajdu, G. G., Hanson, M., Hansroul, M., Hapke, K., Harder, A., Harel, M., Harin Dirac, A., Hauke, M., Hauschild, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, J. C., Hill, A., Hocker, K., Hoffman, R. J., Homer, A. K., Honma, D., Horvath, K. R., Hossain, R., Howard, P., Huntemeyer, P., Igo Kemene, K., Ishii, F. R., Jacob, A., Jawahery, H., Jeremie, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, K., Klein, A., Klier, S., Kluth, T., Kobayashi, M., Kobel, T. P., Kokott, S., Komamiya, R. V., Kowalewski, T., Kre, P., Krieger, J., von Krogh, T., Kuhl, M., Kupper, P., Kyberd, G. D., Lafferty, H., Landsman, D., Lanske, I., Lawson, J. G., Layter, A., Lein, D., Lellouch, J., Lett, L., Levinson, R., Liebisch, J., Lillich, B., List, C., Littlewood, A. W., Lloyd, S. L., Lloyd, F. K., Loebinger, G. D., Ling, M. J., Losty, J., Lu, J., Ludwig, A., Macchiolo, A., Macpherson, W., Mader, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Martinez, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, W., Menge, F. S., Merritt, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, W., Mohr, A., Montanari, T., Mori, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, F. G., Oakham, F., Odorici, H. O., Ogren, A., Oh, A., Okpara, M. J., Oreglia, S., Orito, G., Pasztor, J. R., Pater, G. N., Patrick, J., Patt, P., Pfeifenschneider, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, O., Pooth, M., Przybycien, A., Quadt, C., Rembser, P., Renkel, H., Rick, N., Rodning, J. M., Roney, S., Rosati, K., Roscoe, A. M., Rossi, Y., Rozen, K., Runge, O., Runolfsson, D. R., Rust, K., Sach, T., Saeki, O., Sahr, E. K., G., C., Sbarra, A. D., Schaile, O., Schaile, P., Scharff Hansen, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, G. P., Siroli, A., Skuja, A. M., Smith, G. A., Snow, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, M., Sproston, A., Stahl, K., Stephen, K., Stoll, D., Strom, R., Strohmer, L., Stumpf, B., Surrow, S. D., Talbot, S., Tarem, R. J., Taylor, R., Teuscher, M., Thiergen, J., Thoma, M. A., Thomson, E., Torrence, S., Tower, D., Toya, T., Trefzger, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, B., Vachon, P., Vannerem, M., Verzocchi, H., Vo, J., Vossebeld, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, J. S., White, G. W., Wilson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, D., Zer Zion, and OPAL Collaboration
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electroweak interaction, FOS: Physical sciences, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, Standard Model, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, High Energy Physics::Experiment, Invariant mass, Nuclear Experiment, 010306 general physics, Particle Physics - Experiment
Abstract: The mass and width of the W boson are determined in e+e- collisions at LEP using 183 pb^-1 of data recorded at a centre-of-mass energy roots=189 GeV with the OPAL detector. The invariant mass distributions from 970 WW->qqqq and 1118 WW->qqln candidate events are used to measure the mass of the W boson, Mw = 80.451 +- 0.076(stat.) +- 0.049(syst.) GeV. A direct measurement of the width of the W boson gives Gw=2.09 +- 0.18(stat.) +- 0.09(syst.) GeV. The results are combined with previous OPAL results from 78 pb^-1 of data recorded with roots from 161 to 183 GeV, to obtain: Mw = 80.432 +- 0.066(stat.) +- 0.045(syst.) GeV, Gw = 2.04 +- 0.16(stat.) +- 0.09(syst.) GeV. The consistency of the direct measurement of Mw with that inferred from other measurements of electroweak parameters provides an important test of the Standard Model of electroweak interactions., 24 pages, 4 figures, submitted to Phys. Lett. B
Published: 2001

6. Charged multiplicities in Z decays into u, d, and s Quarks

Author: Abbiendi, G., Ainsley, C., Åkesson, P. F., Alexander, G., Allison, J., Anagnostou, G., Anderson, K. J., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Bailey, I., Ball, A. H., Barberio, E., Barlow, R. J., Behnke, T., Bell, K. W., Bella, G., Bellerive, A., Benelli, G., Bentvelsen, S., Bethke, S., Biebel, O., Bloodworth, I. J., Boeriu, O., Bock, P., Böhme, J., Bonacorsi, D., Boutemeur, M., Braibant, S., Bright-Thomas, P., Brigliadori, L., Brown, R. M., Burckhart, H. J., Cammin, J., Capiluppi, P., Carnegie, R. K., Caron, B., Carter, A. A., Carter, J. R., Chang, C. Y., Charlton, D. G., Clarke, P. E. L., Clay, E., Cohen, I., Cooke, O. C., Couchman, J., Coxe, R. L., Csilling, A., Cuffiani, M., Dado, S., Dallavalle, G. M., Dallison, S., Roeck, A., Wolf, E. A., Dervan, P., Desch, K., Dienes, B., Dixit, M. S., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I. P., Estabrooks, P. G., Etzion, E., Fabbri, F., Fanti, M., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Fürtjes, A., Futyan, D. I., Gagnon, P., Gary, J. W., Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Glenzinski, D., Goldberg, J., Grandi, C., Graham, K., Gross, E., Grunhaus, J., Gruwé, M., Günther, P. O., Hajdu, C., Hanson, G. G., Harder, K., Harel, A., Harin-Dirac, M., Hauschild, M., Hawkes, C. M., Hawkings, R., Hemingway, R. J., Hensel, C., Herten, G., Heuer, R. D., Hill, J. C., Hocker, A., Hoffman, K., Homer, R. J., Honma, A. K., Horváth, D., Hossain, K. R., Howard, R., Hüntemeyer, P., Igo-Kemenes, P., Ishii, K., Jacob, F. R., Jawahery, A., Jeremie, H., Jones, C. R., Jovanovic, P., Junk, T. R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kartvelishvili, V., Kiyotomo Kawagoe, Kawamoto, T., Keeler, R. K., Kellogg, R. G., Kennedy, B. W., Kim, D. H., Klein, K., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Kokott, T. P., Komamiya, S., Kowalewski, R. V., Kress, T., Krieger, P., Krogh, J., Krop, D., Kuhl, T., Kupper, M., Kyberd, P., Lafferty, G. D., Landsman, H., Lanske, D., Lawson, I., Layter, J. G., Leins, A., Lellouch, D., Letts, J., Levinson, L., Liebisch, R., Lillich, J., Littlewood, C., Lloyd, A. W., Lloyd, S. L., Loebinger, F. K., Long, G. D., Losty, M. J., Lu, J., Ludwig, J., Macchiolo, A., Macpherson, A., Mader, W., Marcellini, S., Marchant, T. E., Martin, A. J., Martin, J. P., Martinez, G., Mashimo, T., Mättig, P., Mcdonald, W. J., Mckenna, J., Mcmahon, T. J., Mcpherson, R. A., Meijers, F., Mendez-Lorenzo, P., Menges, W., Merritt, F. S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D. J., Mohr, W., Montanari, A., Mori, T., Nagai, K., Nakamura, I., Neal, H. A., Nisius, R., O Neale, S. W., Oakham, F. G., Odorici, F., Oh, A., Okpara, A., Oreglia, M. J., Orito, S., Pásztor, G., Pater, J. R., Patrick, G. N., Pfeifenschneider, P., Pilcher, J. E., Pinfold, J., Plane, D. E., Poli, B., Polok, J., Pooth, O., Przybycień, M., Quadt, A., Rabbertz, K., Rembser, C., Renkel, P., Rick, H., Rodning, N., Roney, J. M., Rosati, S., Roscoe, K., Rossi, A. M., Rozen, Y., Runge, K., Runolfsson, O., Rust, D. R., Sachs, K., Saeki, T., Sahr, O., Sarkisyan, E. K. G., Sbarra, C., Schaile, A. D., Schaile, O., Scharff-Hansen, P., Schröder, M., Schumacher, M., Schwick, C., Scott, W. G., Seuster, R., Shears, T. G., Shen, B. C., Shepherd-Themistocleous, C. H., Sherwood, P., Siroli, G. P., Skuja, A., Smith, A. M., Snow, G. A., Sobie, R., Söldner-Rembold, S., Spagnolo, S., Sproston, M., Stahl, A., Stephens, K., Stoll, K., Strom, D., Ströhmer, R., Stumpf, L., Surrow, B., Talbot, S. D., Tarem, S., Taylor, R. J., Teuscher, R., Thomas, J., Thomson, M. A., Tönnesmann, M., Torrence, E., Towers, S., Toya, D., Trefzger, T., Trigger, I., Trócsányi, Z., Tsur, E., Turner-Watson, M. F., Ueda, I., Vachon, B., Vannerem, P., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C. P., Ward, D. R., Watkins, P. M., Watson, A. T., Watson, N. K., Wells, P. S., Wengler, T., Wermes, N., Wetterling, D., White, J. S., Wilson, G. W., Wilson, J. A., Wyatt, T. R., Yamashita, S., Zacek, V., Zer-Zion, D., G., Abbiendi, C., Ainsley, P. F., Akesson, G., Alexander, J., Allison, G., Anagnostou, K. J., Anderson, S., Arcelli, S., Asai, D., Axen, G., Azuelo, I., Bailey, A. H., Ball, E., Barberio, R. J., Barlow, T., Behnke, K. W., Bell, G., Bella, A., Bellerive, G., Benelli, S., Bentvelsen, S., Bethke, O., Biebel, I. J., Bloodworth, O., Boeriu, P., Bock, J., Bohme, D., Bonacorsi, M., Boutemeur, S., Braibant, P., Bright Thoma, L., Brigliadori, R. M., Brown, H. J., Burckhart, J., Cammin, P., Capiluppi, R. K., Carnegie, B., Caron, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, P. E., L., E., Clay, I., Cohen, O. C., Cooke, J., Couchman, R. L., Coxe, A., Csilling, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, A., De Roeck, E. A., De, P., Dervan, K., Desch, B., Diene, M. S., Dixit, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, P. G., Estabrook, E., Etzion, F., Fabbri, M., Fanti, L., Feld, P., Ferrari, F., Fiedler, I., Fleck, M., Ford, A., Frey, A., Furtje, D. I., Futyan, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, D., Glenzinski, J., Goldberg, C., Grandi, K., Graham, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, C., Hajdu, G. G., Hanson, K., Harder, A., Harel, M., Harin Dirac, M., Hauschild, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, J. C., Hill, A., Hocker, K., Hoffman, R. J., Homer, A. K., Honma, D., Horvath, K. R., Hossain, R., Howard, P., Huntemeyer, P., Igo Kemene, K., Ishii, F. R., Jacob, A., Jawahery, H., Jeremie, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapentian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, K., Klein, A., Klier, S., Kluth, T., Kobayashi, M., Kobel, T. P., Kokott, S., Komamiya, R. V., Kowalewski, T., Kre, P., Krieger, J., von Krogh, D., Krop, T., Kuhl, M., Kupper, P., Kyberd, G. D., Lafferty, H., Landsman, D., Lanske, I., Lawson, J. G., Layter, A., Lein, D., Lellouch, J., Lett, L., Levinson, R., Liebisch, J., Lillich, C., Littlewood, A. W., Lloyd, S. L., Lloyd, F. K., Loebinger, G. D., Long, M. J., Losty, J., Lu, J., Ludwig, A., Macchiolo, A., Macpherson, W., Mader, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Martinez, T., Mashimo, P., Mattig, W. J., Mcdonald, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, W., Mohr, A., Montanari, T., Mori, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, F. G., Oakham, F., Odorici, A., Oh, A., Okpara, M. J., Oreglia, S., Orito, G., Pasztor, J. R., Pater, G. N., Patrick, P., Pfeifenschneider, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, O., Pooth, M., Przybycien, A., Quadt, K., Rabbertz, C., Rembser, P. O., Renkel, H., Rick, N., Rodning, J. M., Roney, S., Rosati, K., Roscoe, A. M., Rossi, Y., Rozen, K., Runge, O., Runolfsson, D. R., Rust, K., Sach, T., Saeki, O., Sahr, E. K., G., C., Sbarra, A. D., Schaile, O., Schaile, P., Scharff Hansen, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, G. P., Siroli, A., Skuja, A. M., Smith, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, M., Sproston, A., Stahl, K., Stephen, K., Stoll, D., Strom, R., Strohmer, L., Stumpf, B., Surrow, S. D., Talbot, S., Tarem, R. J., Taylor, R., Teuscher, J., Thoma, M. A., Thomson, M., Tonnesmann, E., Torrence, S., Tower, D., Toya, T., Trefzger, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, B., Vachon, P., Vannerem, M., Verzocchi, H., Vo, J., Vossebeld, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, J. S., White, G. W., Wilson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, and D., Zer Zion
Subjects: Quark, Physics, Particle physics, Strange quark, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, High Energy Physics::Lattice, High Energy Physics::Phenomenology, Hadron, Strong interaction, Flavour, FOS: Physical sciences, 01 natural sciences, Charged particle, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Particle, High Energy Physics::Experiment, 010306 general physics, Engineering (miscellaneous), Particle Physics - Experiment, Boson
Abstract: About 4.4 million hadronic decays of Z bosons, recorded by the OPAL detector at LEP at a centre-of-mass energy of around sqrt(s) = 91.2 GeV, are used to determine the mean charged particle multiplicities for the three light quark flavours. Events from primary u, d, and s quarks are tagged by selecting characteristic particles which carry a large fraction of the beam energy. The charged particle multiplicities are measured in the hemispheres opposite to these particles. An unfolding procedure is applied to obtain these multiplicities for each primary light quark flavour. This yields = 17.77 +- 0.51 +0.86 -1.20, = 21.44 +- 0.63 +1.46 -1.17, = 20.02 +- 0.13 +0.39 -0.37, where statistical and systematic errors are given. The results for and are almost fully statistically anti-correlated. Within the errors the result is consistent with the flavour independence of the strong interaction for the particle multiplicities in events from the light up, down, and strange quarks., Comment: 24 pages, 3 figures, submitted to Eur. Phys. J. C
Published: 2001

7. Multiplicities of $\pi^0, \eta,\rm K^0$ and of charged particles in quark and gluon jets

Author: Abbiendi, G., Ackerstaff, K., Ainsley, C., Akesson, P.F., Alexander, G., Allison, John, Anderson, K.J., Arcelli, S., Asai, S., Ashby, S.F., Axen, D., Azuelos, G., Bailey, I., Ball, A.H., Barberio, E., Barlow, Roger J., Batley, J.R., Baumann, S., Behnke, T., Bell, Kenneth Watson, Bella, G., Bellerive, A., Bentvelsen, S., Bethke, S., Biebel, O., Bloodworth, I.J., Bock, P., Bohme, J., Boeriu, O., Bonacorsi, D., Boutemeur, M., Braibant, S., Bright-Thomas, P., Brigliadori, L., Brown, Robert M., Burckhart, H.J., Cammin, J., Capiluppi, P., Carnegie, R.K., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Ciocca, C., Clarke, P.E.L., Clay, E., Cohen, I., Cooke, O.C., Couchman, J., Couyoumtzelis, C., Coxe, R.L., Cuffiani, M., Dado, S., Dallavalle, G.Marco, Dallison, S., de Roeck, A., Dervan, P., Desch, K., Dienes, B., Dixit, M.S., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Estabrooks, P.G., Etzion, E., Fabbri, F., Fanti, M., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Glenzinski, D., Goldberg, J., Grandi, C., Graham, K., Gross, E., Grunhaus, J., Gruwe, M., Gunther, P.O., Hajdu, C., Hanson, G.G., Hansroul, M., Hapke, M., Harder, K., Harel, A., Hargrove, C.K., Harin-Dirac, M., Hauke, A., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Hensel, C., Herten, G., Heuer, R.D., Hildreth, M.D., Hill, J.C., Hocker, James Andrew, Hoffman, Kara Dion, Homer, R.J., Honma, A.K., Horvath, D., Hossain, K.R., Howard, R., Huntemeyer, P., Igo-Kemenes, P., Ishii, K., Jacob, F.R., Jawahery, A., Jeremie, H., Jones, C.R., Jovanovic, P., Junk, T.R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kim, D.H., Klein, K., Klier, A., Kobayashi, T., Kobel, M., Kokott, T.P., Komamiya, S., Kowalewski, Robert V., Kress, T., Krieger, P., von Krogh, J., Kuhl, T., Kupper, M., Kyberd, P., Lafferty, G.D., Landsman, H., Lanske, D., Lawson, I., Layter, J.G., Leins, A., Lellouch, D., Letts, J., Levinson, L., Liebisch, R., Lillich, J., List, B., Littlewood, C., Lloyd, A.W., Lloyd, S.L., Loebinger, F.K., Long, G.D., Losty, M.J., Lu, J., Ludwig, J., Macchiolo, A., Macpherson, A., Mader, W., Mannelli, M., Marcellini, S., Marchant, T.E., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., McMahon, T.J., McPherson, R.A., Meijers, F., Mendez-Lorenzo, P., Merritt, F.S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Mohr, W., Montanari, A., Mori, T., Nagai, K., Nakamura, I., Neal, H.A., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Oh, A., Okpara, A., Oreglia, M.J., Orito, S., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poli, B., Polok, J., Pooth, O., Przybycien, M., Quadt, A., Rembser, C., Rick, H., Robins, S.A., Rodning, N., Roney, J.M., Rosati, S., Roscoe, K., Rossi, A.M., Rozen, Y., Runge, K., Runolfsson, O., Rust, D.R., Sachs, K., Saeki, T., Sahr, O., Sarkisyan, E.K.G., Sbarra, C., Schaile, A.D., Schaile, O., Scharff-Hansen, P., Schmitt, S., Schroder, Matthias, Schumacher, M., Schwick, C., Scott, W.G., Seuster, R., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G.P., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Spagnolo, S., Sproston, M., Stahl, A., Stephens, K., Stoll, K., Strom, David M., Strohmer, R., Surrow, B., Talbot, S.D., Tarem, S., Taylor, R.J., Teuscher, R., Thiergen, M., Thomas, J., Thomson, M.A., Torrence, E., Towers, S., Trefzger, T., Trigger, I., Trocsanyi, Z., Tsur, E., Turner-Watson, M.F., Ueda, I., Vannerem, P., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wengler, T., Wermes, N., Wetterling, D., White, J.S., Wilson, G.W., Wilson, J.A., Wyatt, T.R., Yamashita, S., Zacek, V., Zer-Zion, D., G., Abbiendi, K., Ackerstaff, C., Ainsley, P. F., Akesson, G., Alexander, J., Allison, K. J., Anderson, S., Arcelli, S., Asai, S. F., Ashby, D., Axen, G., Azuelo, I., Bailey, A. H., Ball, E., Barberio, R. J., Barlow, J. R., Batley, S., Baumann, T., Belmke, K. W., Bell, G., Bella, A., Bellerive, S., Bentvelsen, S., Bethke, O., Biebel, I. J., Bloodworth, P., Bock, J., Bohme, O., Boeriu, D., Bonacorsi, M., Boutemeur, S., Braidant, P., Bright Thoma, L., Brigliadori, R. M., Brown, H. J., Burckhart, J., Cammin, P., Capiluppi, R. K., Carnegie, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, C., Ciocca, P. E., L., E., Clay, I., Cohen, O. C., Cooke, J., Couchman, C., Couyoumtzeli, R. L., Coxe, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, A., de Roeck, P., Dervan, K., Desch, B., Diene, M. S., Dixit, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, P. G., Estabrook, E., Etzion, F., Fabbri, M., Fanti, L., Feld, P., Ferrari, F., Fiedler, I., Fleck, M., Ford, A., Frey, A., Furtje, D. I., Futyan, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, D., Glenzinski, J., Goldberg, C., Grandi, K., Graham, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, C., Hajdu, G. G., Hanson, M., Hansroul, M., Hapke, K., Harder, A., Harel, C. K., Hargrove, M., Harin Dirac, A., Hauke, M., Hauschild, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, M. D., Hildreth, J. C., Hill, A., Hocker, K., Hoffman, R. J., Homer, A. K., Honma, D., Horvath, K. R., Hossain, R., Howard, P., Huntemeyer, P., Igo Kemene, K., Ishii, F. R., Jacob, A., Jawahery, H., Jeremie, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, K., Klein, A., Klier, T., Kobayashi, M., Kobel, T. P., Kokott, S., Komamiya, R. V., Kowalewski, T., Kre, P., Krieger, J., von Krogh, T., Kuhl, M., Kupper, P., Kyberd, G. D., Lafferty, H., Landsman, D., Lanske, I., Lawson, J. G., Layter, A., Lein, D., Lellouch, J., Lett, L., Levinson, R., Liebisch, J., Lillich, B., List, C., Littlewood, A. W., Lloyd, S. L., Lloyd, F. K., Loebinger, G. D., Long, M. J., Losty, J., Lu, J., Ludwig, A., Macchiolo, A., Macpherson, W., Mader, M., Mannelli, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Martinez, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, F. S., Merritt, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, W., Mohr, A., Montanari, T., Mori, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, F. G., Oakham, F., Odorici, H. O., Ogren, A., Oh, A., Okpara, M. J., Oreglia, S., Orito, G., Pasztor, J. R., Pater, G. N., Patrick, J., Patt, P., Pfeifenschneider, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, O., Pooth, M., Przybycien, A., Quadt, C., Rembser, H., Rick, S. A., Robin, N., Rodning, J. M., Roney, S., Rosati, K., Roscoe, A. M., Rossi, Y., Rozen, K., Runge, O., Runolfsson, D. R., Rust, K., Sach, T., Saeki, O., Sahr, E. K., G., C., Sbarra, A. D., Schaile, O., Schaile, P., Scharff Hansen, S., Schmitt, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shephard Themistocleou, P., Sherwood, G. P., Siroli, A., Skuja, A. M., Smith, G. A., Snow, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, M., Sproston, A., Stahl, K., Stephen, K., Stoll, D., Strom, R., Strohmer, B., Surrow, S. D., Talbot, S., Tarem, R. J., Taylor, R., Teuscher, M., Thiergen, J., Thoma, M. A., Thomson, E., Torrence, S., Tower, T., Trefzger, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, P., Vannerem, M., Verzocchi, H., Vo, J., Vossebeld, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, J. S., White, G. W., Wilson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, and D., Zer Zion
Subjects: Quark, Physics, Quantum chromodynamics, Particle physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Lattice, Nuclear Theory, High Energy Physics::Phenomenology, Eta meson, Multiplicity (mathematics), 01 natural sciences, Charged particle, Gluon, 13. Climate action, 0103 physical sciences, Particle, High Energy Physics::Experiment, 010306 general physics, Engineering (miscellaneous), Particle Physics - Experiment
Abstract: We compared the multiplicities of pizero, eta, Kzero and of charged particles in quark and gluon jets in 3-jet events, as measured by the OPAL experiment at LEP. The comparisons were performed for distributions unfolded to 100% pure quark and gluon jets, at an effective scale Qjet which took into account topological dependences of the 3-jet environment. The ratio of particle multiplicity in gluon jets to that in quark jets as a function of Qjet for pizero, eta and Kzero was found to be independent of the particle species. This is consistent with the QCD prediction that the observed enhancement in the mean particle rate in gluon jets with respect to quark jets should be independent of particle species. In contrast to some theoretical predictions and previous observations, we observed no evidence for an enhancement of eta meson production in gluon jets with respect to quark jets, beyond that observed for charged particles. We measured the ratio of the slope of the average charged particle multiplicity in gluon jets to that in quark jets, C, and we compared it to a next-to-next-to-next-to leading order calculation. Our result, C=2.27+-0.20(stat+syst),is about one standard deviation higher than the perturbative prediction. We compared the multiplicities of pizero, eta, Kzero and of charged particles in quark and gluon jets in 3-jet events, as measured by the OPAL experiment at LEP. The comparisons were performed for distributions unfolded to 100% pure quark and gluon jets, at an effective scale Qjet which took into account topological dependences of the 3-jet environment. The ratio of particle multiplicity in gluon jets to that in quark jets as a function of Qjet for pizero, eta and Kzero was found to be independent of the particle species. This is consistent with the QCD prediction that the observed enhancement in the mean particle rate in gluon jets with respect to quark jets should be independent of particle species. In contrast to some theoretical predictions and previous observations, we observed no evidence for an enhancement of eta meson production in gluon jets with respect to quark jets, beyond that observed for charged particles. We measured the ratio of the slope of the average charged particle multiplicity in gluon jets to that in quark jets, C, and we compared it to a next-to-next-to-next-to leading order calculation. Our result, C=2.27+-0.20(stat+syst),is about one standard deviation higher than the perturbative prediction.
Published: 2000

8. Electroweak measurements in electron-positron collisions at W-boson-pair energies at LEP

Author: S. Schael, 1 R. Barate, 2 R. Brunelière, 2 D. Buskulic, 2 I. De Bonis, 2 D. Decamp, 2 P. Ghez, 2 C. Goy, 2 S. Jézéquel, 2 J. P. Lees, 2 A. Lucotte, 2 F. Martin, 2 E. Merle, 2 M. N. Minard, 2 J. Y. Nief, 2 P. Odier, 2 B. Pietrzyk, 2 B. Trocmé, 2 S. Bravo, 3 M. P. Casado, 3 M. Chmeissani, 3 P. Comas, 3 J. M. Crespo, 3 E. Fernandez, 3 M. Fernandez Bosman, 3 L.l. Garrido, 3, a15 E. Grauges, 3 A. Juste, 3 M. Martinez, 3 G. Merino, 3 R. Miquel, 3 L.l. M. Mir, 3 S. Orteu, 3 A. Pacheco, 3 I. C. Park, 3 J. Perlas, 3 I. Riu, 3 H. Ruiz, 3 F. Sanchez, 3 A. Colaleo, 4 D. Creanza, 4 N. De Filippis, 4 M. de Palma, 4 G. Iaselli, 4 G. Maggi, 4 M. Maggi, 4 S. Nuzzo, 4 A. Ranieri, 4 G. Raso, 4, a24 F. Ruggieri, 4 G. Selvaggi, 4 L. Silvestris, 4 P. Tempesta, 4 A. Tricomi, a3 G. Zito, 4 X. Huang, 5 J. Lin, 5 Q. Ouyang, 5 T. Wang, 5 Y. Xie, 5 R. Xu, 5 S. Xue, 5 J. Zhang, 5 L. Zhang, 5 W. Zhao, 5 D. Abbaneo, 6 A. Bazarko, 6 U. Becker, 6 G. Boix, 6, a33 F. Bird, 6 E. Blucher, 6 B. Bonvicini, 6 P. Bright Thomas, 6 T. Barklow, a26 O. Buchmüller, a26 M. Cattaneo, 6 F. Cerutti, 6 V. Ciulli, 6 B. Clerbaux, a23 H. Drevermann, 6 R. W. Forty, 6 M. Frank, 6 T. C. Greening, 6 R. Hagelberg, 6 A. W. Halley, 6 F. Gianotti, 6 M. Girone, 6 J. B. Hansen, 6 J. Harvey, 6 R. Jacobsen, 6 D. E. Hutchcroft, a30 P. Janot, 6 B. Jost, 6 J. Knobloch, 6 M. Kado, a2 I. Lehraus, 6 P. Lazeyras, 6 P. Maley, 6 P. Mato, 6 J. May, 6 A. Moutoussi, 6 M. Pepe Altarelli, 6 F. Ranjard, 6 L. Rolandi, 6 D. Schlatter, 6 B. Schmitt, 6 O. Schneider, 6 W. Tejessy, 6 F. Teubert, 6 I. R. Tomalin, 6 E. Tournefier, 6 R. Veenhof, 6 A. Valassi, 6 W. Wiedenmann, 6 A. E. Wright, 6 Z. Ajaltouni, 7 F. Badaud, 7 G. Chazelle, 7 O. Deschamps, 7 S. Dessagne, 7 A. Falvard, 7, a20 C. Ferdi, 7 D. Fayolle, 7 P. Gay, 7 C. Guicheney, 7 P. Henrard, 7 J. Jousset, 7 B. Michel, 7 S. Monteil, 7 J. C. Montret, 7 D. Pallin, 7 J. M. Pascolo, 7 P. Perret, 7 F. Podlyski, 7 H. Bertelsen, 8 T. Fernley, 8 J. D. Hansen, 8 J. R. Hansen, 8 P. H. Hansen, 8 A. C. Kraan, 8 A. Lindahl, 8 R. Mollerud, 8 B. S. Nilsson, 8 B. Rensch, 8 A. Waananen, 8 G. Daskalakis, 9 A. Kyriakis, 9 C. Markou, 9 E. Simopoulou, 9 I. Siotis, 9 A. Vayaki, 9 K. Zachariadou, 9 A. Blondel, a12 G. Bonneaud, 10 J. C. Brient, 10 F. Machefert, 10 A. Rougé, 10 M. Rumpf, 10 M. Swynghedauw, 10 R. Tanaka, 10 M. Verderi, 10 H. Videau, 10 V. Ciulli, 11 E. Focardi, 11 G. Parrini, 11 K. Zachariadou, 11 M. Corden, 12 C. Georgiopoulos, 12 A. Antonelli, 13 M. Antonelli, 13 G. Bencivenni, 13 G. Bologna, a34 F. Bossi, 13 P. Campana, 13 G. Capon, 13 F. Cerutti, 13 V. Chiarella, 13 G. Felici, 13 P. Laurelli, 13 G. Mannocchi, a5 G. P. Murtas, 13 L. Passalacqua, 13 P. Picchi, 13 P. Colrain, 14 I. ten Have, 14 I. S. Hughes, 14 J. Kennedy, 14 I. G. Knowles, 14 J. G. Lynch, 14 W. T. Morton, 14 P. Negus, 14 V. O’Shea, 14 C. Raine, 14 P. Reeves, 14 J. M. Scarr, 14 K. Smith, 14 A. S. Thompson, 14 R. M. Turnbull, 14 S. Wasserbaech, 15 O. Buchmüller, 16 R. Cavanaugh, a4 S. Dhamotharan, a21 C. Geweniger, 16 P. Hanke, 16 G. Hansper, 16 V. Hepp, 16 E. E. Kluge, 16 A. Putzer, 16 J. Sommer, 16 H. Stenzel, 16 K. Tittel, 16 W. Werner, 16 M. Wunsch, a19 R. Beuselinck, 17 D. M. Binnie, 17 W. Cameron, 17 G. Davies, 17 P. J. Dornan, 17 S. Goodsir, 17 N. Marinelli, 17 E. B. Martin, 17 J. Nash, 17 J. Nowell, 17 S. A. Rutherford, 17 J. K. Sedgbeer, 17 J. C. Thompson, a14 R. White, 17 M. D. Williams, 17 V. M. Ghete, 18 P. Girtler, 18 E. Kneringer, 18 D. Kuhn, 18 G. Rudolph, 18 E. Bouhova Thacker, 19 C. K. Bowdery, 19 P. G. Buck, 19 D. P. Clarke, 19 G. Ellis, 19 A. J. Finch, 19 F. Foster, 19 G. Hughes, 19 R. W. L. Jones, 19 N. R. Keemer, 19 M. R. Pearson, 19 N. A. Robertson, 19 T. Sloan, 19 M. Smizanska, 19 S. W. Snow, 19 M. I. Williams, 19 O. van der Aa, 20 C. Delaere, a28 G. Leibenguth, a31 V. Lemaitre, a29 L. A. T. Bauerdick, 21 U. Blumenschein, 21 P. van Gemmeren, 21 I. Giehl, 21 F. Hölldorfer, 21 K. Jakobs, 21 M. Kasemann, 21 F. Kayser, 21 K. Kleinknecht, 21 A. S. Müller, 21 G. Quast, 21 B. Renk, 21 E. Rohne, 21 H. G. Sander, 21 S. Schmeling, 21 H. Wachsmuth, 21 R. Wanke, 21 C. Zeitnitz, 21 T. Ziegler, 21 J. J. Aubert, 22 C. Benchouk, 22 A. Bonissent, 22 J. Carr, 22 P. Coyle, 22 C. Curtil, 22 A. Ealet, 22 F. Etienne, 22 D. Fouchez, 22 F. Motsch, 22 P. Payre, 22 D. Rousseau, 22 A. Tilquin, 22 M. Talby, 22 M. Thulasidas, 22 M. Aleppo, 23 M. Antonelli, 23 F. Ragusa, 23 V. Büscher, 24 A. David, 24 H. Dietl, a32 G. Ganis, a27 K. Hüttmann, 24 G. Lütjens, 24 C. Mannert, 24 W. Männer, a32 H. G. Moser, 24 R. Settles, 24 H. Seywerd, 24 H. Stenzel, 24 M. Villegas, 24 W. Wiedenmann, 24 G. Wolf, 24 P. Azzurri, 25 J. Boucrot, 25 O. Callot, 25 S. Chen, 25 A. Cordier, 25 M. Davier, 25 L. Duflot, 25 J. F. Grivaz, 25 P.h. Heusse, 25 A. Jacholkowska, a6 F. Le Diberder, 25 J. Lefrançois, 25 A. M. Mutz, 25 M. H. Schune, 25 L. Serin, 25 J. J. Veillet, 25 I. Videau, 25 D. Zerwas, 25 P. Azzurri, 26 G. Bagliesi, 26 S. Bettarini, 26 T. Boccali, 26 C. Bozzi, 26 G. Calderini, 26 R. Dell’Orso, 26 R. Fantechi, 26 I. Ferrante, 26 F. Fidecaro, 26 L. Foà, 26 A. Giammanco, 26 A. Giassi, 26 A. Gregorio, 26 F. Ligabue, 26 A. Lusiani, 26 P. S. Marrocchesi, 26 A. Messineo, 26 F. Palla, 26 G. Rizzo, 26 G. Sanguinetti, 26 A. Sciabà, 26 G. Sguazzoni, 26 P. Spagnolo, 26 J. Steinberger, 26 R. Tenchini, 26 C. Vannini, 26 A. Venturi, 26 P. G. Verdini, 26 O. Awunor, 27 G. A. Blair, 27 G. Cowan, 27 A. Garcia Bellido, 27 M. G. Green, 27 T. Medcalf, 27 A. Misiejuk, 27 J. A. Strong, 27 P. Teixeira Dias, 27 D. R. Botterill, 28 R. W. Clifft, 28 T. R. Edgecock, 28 M. Edwards, 28 S. J. Haywood, 28 P. R. Norton, 28 I. R. Tomalin, 28 J. J. Ward, 28 B. Bloch Devaux, 29 D. Boumediene, 29 P. Colas, 29 S. Emery, 29 B. Fabbro, 29 W. Kozanecki, 29 E. Lançon, 29 M. C. Lemaire, 29 E. Locci, 29 P. Perez, 29 J. Rander, 29 J. F. Renardy, 29 A. Roussarie, 29 J. P. Schuller, 29 J. Schwindling, 29 B. Tuchming, 29 B. Vallage, 29 S. N. Black, 30 J. H. Dann, 30 H. Y. Kim, 30 N. Konstantinidis, 30 A. M. Litke, 30 M. A. McNeil, 30 G. Taylor, 30 C. N. Booth, 31 S. Cartwright, 31 F. Combley, a25 P. N. Hodgson, 31 M. Lehto, 31 L. F. Thompson, 31 K. Affholderbach, 32 E. Barberio, 32 A. Böhrer, 32 S. Brandt, 32 H. Burkhardt, 32 E. Feigl, 32 C. Grupen, 32 J. Hess, 32 G. Lutters, 32 H. Meinhard, 32 J. Minguet Rodriguez, 32 L. Mirabito, 32 A. Misiejuk, 32 E. Neugebauer, 32 A. Ngac, 32 G. Prange, 32 F. Rivera, 32 P. Saraiva, 32 U. Schäfer, 32 U. Sieler, 32 L. Smolik, 32 F. Stephan, 32 H. Trier, 32 M. Apollonio, 33 C. Borean, 33 L. Bosisio, 33 R. Della Marina, 33 G. Giannini, 33 B. Gobbo, 33 G. Musolino, 33 L. Pitis, 33 H. He, 34 H. Kim, 34 J. Putz, 34 J. Rothberg, 34 S. R. Armstrong, 35 L. Bellantoni, 35 K. Berkelman, 35 D. Cinabro, 35 J. S. Conway, 35 K. Cranmer, 35 P. Elmer, 35 Z. Feng, 35 D. P. S. Ferguson, 35 Y. Gao, a13 S. González, 35 J. Grahl, 35 J. L. Harton, 35 O. J. Hayes, 35 H. Hu, 35 S. Jin, 35 R. P. Johnson, 35 J. Kile, 35 P. A. McNamara III, 35 J. Nielsen, 35 W. Orejudos, 35 Y. B. Pan, 35 Y. Saadi, 35 I. J. Scott, 35 V. Sharma, 35 A. M. Walsh, 35 J. Walsh, 35 J. Wear, 35 J. H. von Wimmersperg Toeller, 35 W. Wiedenmann, 35 J. Wu, 35 S. L. Wu, 35 X. Wu, 35 J. M. Yamartino, 35 G. Zobernig, 35 G. Dissertori, J. Abdallah, 27 P. Abreu, 24 W. Adam, 56 P. Adzic, 13 T. Albrecht, 19 R. Alemany Fernandez, 10 T. Allmendinger, 19 P. P. Allport, 25 U. Amaldi, 31 N. Amapane, 49 S. Amato, 53 E. Anashkin, 38 A. Andreazza, 30 S. Andringa, 24 N. Anjos, 24 P. Antilogus, 27 W. D. Apel, 19 Y. Arnoud, 16 S. Ask, 10 B. Asman, 48 J. E. Augustin, 27 A. Augustinus, 10 P. Baillon, 10 A. Ballestrero, 50 P. Bambade, 22 R. Barbier, 29 D. Bardin, 18 G. J. Barker, 58 A. Baroncelli, 41 M. Battaglia, 10 M. Baubillier, 27 K. H. Becks, 59 M. Begalli, 8 A. Behrmann, 59 K. Belous, 44 E. Ben Haim, 27 N. Benekos, 34 A. Benvenuti, 6 C. Berat, 16 M. Berggren, 27 L. Berntzon, 48 D. Bertrand, 3 M. Besancon, 42 N. Besson, 42 D. Bloch, 11 M. Blom, 33 M. Bluj, 57 M. Bonesini, 31 M. Boonekamp, 42 P. S. L. BoothĎ, 25 G. Borisov, 23 O. Botner, 54 B. Bouquet, 22 T. J. V. Bowcock, 25 I. Boyko, 18 M. Bracko, 45 R. Brenner, 54 E. Brodet, 37 P. Bruckman, 20 J. M. Brunet, 9 L. Bugge, 35 B. Buschbeck, 56 P. Buschmann, 59 M. Calvi, 31 T. Camporesi, 10 V. Canale, 40 F. Carena, 10 N. Castro, 24 F. Cavallo, 6 M. Chapkin, 44 P.h. Charpentier, 10 P. Checchia, 38 R. Chierici, 29 P. Chliapnikov, 44 J. Chudoba, 14 K. Cieslik, 20 P. Collins, 10 R. Contri, 15 G. Cosme, 22 F. Cossutti, 51 M. J. Costa, 55 B. Crawley, 1 D. Crennell, 39 J. Cuevas, 36 J. D’Hondt, 3 J. Dalmau, 48 T. da Silva, 53 W. Da Silva, 27 G. Della Ricca, 51 A. De Angelis, 52 W. De Boer, 19 C. De Clercq, 3 B. De Lotto, 52 N. De Maria, 49 A. De Min, 38 L. de Paula, 53 L. Di Ciaccio, 40 A. Di Simone, 40 K. Doroba, 57 J. Drees, 59 M. Dris, 34 A. Duperrin, 29 G. Eigen, 5 T. Ekelof, 54 M. Ellert, 54 M. Elsing, 10 M. C. Espirito Santo, 24 G. Fanourakis, 13 D. Fassouliotis, 4 M. Feindt, 19 J. Fernandez, 43 A. Ferrer, 55 F. Ferro, 15 U. Flagmeyer, 59 H. Foeth, 10 E. Fokitis, 34 F. Fulda Quenzer, 22 J. Fuster, 55 M. Gandelman, 53 C. Garcia, 55 P.h. Gavillet, 10 E. Gazis, 34 D. Gele, 11 R. GokieliĎ, 57 B. Golob, 47 G. Gomez Ceballos, 43 P. Gonçalves, 24 E. Graziani, 41 G. Grosdidier, 22 K. Grzelak, 57 J. Guy, 39 C. Haag, 19 A. Hallgren, 54 K. Hamacher, 59 K. Hamilton, 37 S. Haug, 35 F. Hauler, 19 V. Hedberg, 28 M. Hennecke, 19 H. HerrĎ, 10 J. Hoffman, 57 S. O. Holmgren, 48 P. J. Holt, 10 M. A. Houlden, 25 K. Hultqvist, 48 J. N. Jackson, 25 G. Jarlskog, 28 P. Jarry, 42 D. Jeans, 37 E. K. Johansson, 48 P. D. Johansson, 48 P. Jonsson, 29 C. Joram, 10 L. Jungermann, 19 F. Kapusta, 27 S. Katsanevas, 29 E. Katsoufis, 34 G. Kernel, 45 B. P. Kersevan, 47 U. Kerzel, 19 A. Kiiskinen, 17 B. T. King, 25 N. J. Kjaer, 10 P. Kluit, 33 P. Kokkinias, 13 V. Kostioukhine, 15 C. Kourkoumelis, 4 O. Kouznetsov, 18 Z. Krumstein, 18 M. Kucharczyk, 20 J. Lamsa, 1 G. Leder, 56 F. Ledroit, 16 L. Leinonen, 48 R. Leitner, 32 J. Lemonne, 3 V. LepeltierĎ, 22 T. Lesiak, 20 J. Libby, 37 W. Liebig, 59 D. Liko, 56 A. Lipniacka, 5 J. H. Lopes, 53 J. M. Lopez, 36 D. Loukas, 13 P. Lutz, 42 L. Lyons, 37 J. MacNaughton, 56 A. Malek, 59 S. Maltezos, 34 F. Mandl, 56 J. Marco, 43 R. Marco, 43 B. Marechal, 53 M. Margoni, 38 J. C. Marin, 10 C. Mariotti, 10 A. Markou, 13 C. Martinez Rivero, 43 J. Masik, 14 N. Mastroyiannopoulos, 13 F. Matorras, 43 C. Matteuzzi, 31 F. Mazzucato, 38 M. Mazzucato, 38 R. Mc Nulty, 25 C. Meroni, 30 W. T. Meyer, 1 E. Migliore, 49 W. Mitaroff, 56 U. Mjoernmark, 28 T. Moa, 48 M. Moch, 19 K. Moenig, 12 R. Monge, 15 J. Montenegro, 33 D. Moraes, 53 P. Morettini, 15 U. Mueller, 59 K. Muenich, 59 M. Mulders, 33 L. Mundim, 8 W. Murray, 39 B. Muryn, 21 G. Myatt, 37 T. Myklebust, 35 M. Nassiakou, 13 F. Navarria, 6 K. Nawrocki, 57 S. Nemecek, 14 R. Nicolaidou, 42 V. Nikolaenko, 11 M. Nikolenko, 11 A. Oblakowska Mucha, 21 V. Obraztsov, 44 A. Olshevski, 18 A. Onofre, 24 R. Orava, 17 K. Osterberg, 17 A. Ouraou, 42 A. Oyanguren, 55 M. Paganoni, 31 S. Paiano, 6 J. P. Palacios, 25 H. PalkaĎ, 20 T.h. D. Papadopoulou, 34 L. Pape, 10 C. Parkes, 26 F. Parodi, 15 U. Parzefall, 10 A. Passeri, 41 O. Passon, 59 V. Perepelitsa, 55 A. Perrotta, 6 A. Petrolini, 15 J. Piedra, 43 L. Pieri, 38 F. PierreĎ, 42 M. Pimenta, 24 T. Podobnik, 47 V. Poireau, 10 M. E. Pol, 7 G. Polok, 20 P. PoropatĎ, 51 V. Pozdniakov, 18 N. Pukhaeva, 18 A. Pullia, 31 D. Radojicic, 37 J. Rames, 14 L. Ramler, 19 A. Read, 35 P. Rebecchi, 10 J. Rehn, 19 D. Reid, 33 R. Reinhardt, 59 P. Renton, 37 F. Richard, 22 J. Ridky, 14 I. Ripp Baudot, 11 M. Rivero, 43 D. Rodriguez, 43 A. Romero, 49 P. Ronchese, 38 E. Rosenberg, 1 P. Roudeau, 6 V. Ruhlmann Kleider, 42 D. Ryabtchikov, 44 A. Sadovsky, 18 L. Salmi, 17 J. Salt, 55 C. Sander, 19 A. Savoy Navarro, 27 U. Schwickerath, 10 A. SegarĎ, 37 R. Sekulin, 39 M. Siebel, 59 L. Simard, 42 A. SisakianĎ, 18 G. Smadja, 29 O. Smirnova, 28 A. Sokolov, 44 A. Sopczak, 23 R. Sosnowski, 57 T. Spassov, 10 M. Stanitzki, 19 A. Stocchi, 22 J. Strauss, 56 B. Stugu, 5 M. Szczekowski, 57 M. Szeptycka, 57 T. Szumlak, 21 T. Tabarelli, 31 A. C. Taffard, 25 F. Tegenfeldt, 54 F. Terranova, 31 J. Thomas, 37 J. Timmermans, 33 L. Tkatchev, 18 M. Tobin, 60 S. Todorovova, 14 B. Tomé, 24 A. Tonazzo, 31 P. Tortosa, 55 P. Travnicek, 14 D. Treille, 10 G. Tristram, 9 M. Trochimczuk, 57 C. Troncon, 30 M. L. Turluer, 42 I. A. Tyapkin, 18 P. Tyapkin, 18 S. Tzamarias, 13 V. Uvarov, 44 G. Valenti, 6 P. Van Dam, 33 J. Van Eldik, 10 A. Van Lysebetten, 3 N. van Remortel, 2 I. Van Vulpen, 33 G. Vegni, 30 F. Veloso, 24 W. Venus, 39 F. VerbeureĎ, 2 P. Verdier, 29 V. Verzi, 40 D. Vilanova, 42 L. Vitale, 51 V. Vrba, 14 H. Wahlen, 59 A. J. Washbrook, 25 C. Weiser, 19 D. Wicke, 59 J. Wickens, 3 G. Wilkinson, 37 M. Winter, 11 M. Witek, 20 O. Yushchenko, 44 A. Zalewska, 20 P. Zalewski, 57 D. Zavrtanik, 46 V. Zhuravlov, 18 N. I. Zimin, 18 A. Zintchenko, 18 M. Zupan, P. 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Chen, 44 G. Chen, 7 G. M. Chen, 7 H. F. Chen, 22 H. S. Chen, 7 G. Chiefari, 40 F. Cindolo, 8 I. Clare, 13 R. Clare, 38 G. Coignet, 4 N. Colino, 25 S. Costantini, 39 B. de la Cruz, 25 S. Cucciarelli, 33 R. de Asmundis, 29 P. Déglon, 20 J. Debreczeni, 12 A. Degré, 4 K. Dehmelt, 26 K. Deiters, 47 D. della Volpe, 29 E. Delmeire, 20 P. Denes, 37 F. DeNotaristefani, 39 A. De Salvo, 49 M. Diemoz, 39 M. Dierckxsens, 2 C. Dionisi, 39 M. Dittmar, 49 A. Doria, 29 M. T. Dova, ♯ D. Duchesneau, 4 M. Duda, 1 B. Echenard, 20 A. Eline, 18 A. El Hage, 1 H. El Mamouni, 24 A. Engler, 35 F. J. Eppling, 13 P. Extermann, 20 M. A. Falagan, 25 S. Falciano, 39 A. Favara, 32 J. Fay, 24 O. Fedin, 34 M. Felcini, 49 T. Ferguson, 35 H. Fesefeldt, 1 E. Fiandrini, 33 J. H. Field, 20 F. Filthaut, 31 P. H. Fisher, 13 W. Fisher, 37 G. Forconi, 13 K. Freudenreich, 49 C. Furetta, 27 Y.u. Galaktionov, 13 S. N. Ganguli, 9 P. Garcia Abia, 25 M. Gataullin, 32 S. Gentile, 39 S. Giagu, 39 Z. F. Gong, 22 G. Grenier, 24 O. Grimm, 49 M. W. Gruenewald, 16 V. K. Gupta, 37 A. Gurtu, 9 L. J. Gutay, 46 D. Haas, 5 D. Hatzifotiadou, 8 T. Hebbeker, 1 A. Hervé, 18 J. Hirschfelder, 35 H. Hofer, 49 M. Hohlmann, 26 G. Holzner, 49 S. R. Hou, 44 B. N. Jin, 7 P. Jindal, 14 L. W. Jones, 3 P. de Jong, 2 I. Josa Mutuberría, 25 M. Kaur, 14 M. N. Kienzle Focacci, 20 J. K. Kim, 43 J. Kirkby, 18 W. Kittel, 31 A. Klimentov, 28 A. C. König, 31 M. Kopal, 46 V. Koutsenko, 28 M. Kräber, 49 R. W. Kraemer, 35 A. Krüger, 48 A. Kunin, 13 P. Ladron de Guevara, 25 I. Laktineh, 24 G. Landi, 17 M. Lebeau, 18 A. Lebedev, 13 P. Lebrun, 24 P. Lecomte, 49 P. Lecoq, 18 P. Le Coultre, 49 J. M. Le Goff, 18 R. Leiste, 48 M. Levtchenko, 27 P. Levtchenko, 34 C. Li, 22 S. Likhoded, 48 C. H. Lin, 44 W. T. Lin, 44 F. L. Linde, 2 L. Lista, 29 Z. A. Liu, 7 W. Lohmann, 48 E. Longo, 39 Y. S. Lu, 7 C. Luci, 39 L. Luminari, 39 W. Lustermann, 49 W. G. Ma, 22 L. Malgeri, 18 A. Malinin, 28 C. Maña, 25 J. Mans, 37 J. P. Martin, 24 F. Marzano, 39 K. Mazumdar, 9 R. R. McNeil, 6 S. Mele, 29 L. Merola, 29 M. Meschini, 17 W. J. Metzger, 31 A. Mihul, 11 H. Milcent, 18 G. Mirabelli, 39 J. Mnich, 1 G. B. Mohanty, 9 G. S. Muanza, 24 A. J. M. Muijs, 2 M. Musy, 39 S. Nagy, 15 S. Natale, 20 M. Napolitano, 29 F. Nessi Tedaldi, 49 H. Newman, 32 A. Nisati, 39 T. Novak, 31 H. Nowak, 48 R. Ofierzynski, 49 G. Organtini, 39 I. Pal, 46 C. Palomares, 25 P. Paolucci, 29 R. Paramatti, 39 G. Passaleva, 17 S. Patricelli, 29 T. Paul, 10 M. Pauluzzi, 33 C. Paus, 13 F. Pauss, 49 M. Pedace, 39 S. Pensotti, 27 D. Perret Gallix, 4 D. Piccolo, 29 F. Pierella, 8 M. Pieri, 41 M. Pioppi, 33 P. A. Piroué, 37 E. Pistolesi, 27 V. Plyaskin, 28 M. Pohl, 20 V. Pojidaev, 17 J. Pothier, 18 D. Prokofiev, 34 G. Rahal Callot, 49 M. A. Rahaman, 9 P. Raics, 15 N. Raja, 9 R. Ramelli, 49 P. G. Rancoita, 27 R. Ranieri, 17 A. Raspereza, 48 P. Razis, 30 S. Rembeczki, 26 D. Ren, 49 M. Rescigno, 39 S. Reucroft, 10 S. Riemann, 48 K. Riles, 3 B. P. Roe, 3 L. Romero, 25 A. Rosca, 48 C. Rosemann, 1 C. Rosenbleck, 1 S. Rosier Lees, 4 S. Roth, 1 J. A. Rubio, 18 G. Ruggiero, 17 H. Rykaczewski, 49 A. Sakharov, 49 S. Saremi, 6 S. Sarkar, 39 J. Salicio, 18 E. Sanchez, 25 C. Schäfer, 18 V. Schegelsky, 34 H. Schopper, 21 D. J. Schotanus, 31 C. Sciacca, 29 L. Servoli, 33 S. Shevchenko, 32 N. Shivarov, 42 V. Shoutko, 13 E. Shumilov, 28 A. Shvorob, 32 D. Son, 43 C. Souga, 24 P. Spillantini, 17 M. Steuer, 13 D. P. Stickland, 37 B. Stoyanov, 42 A. Straessner, 20 K. Sudhakar, 9 G. Sultanov, 42 L. Z. Sun, 22 S. Sushkov, 1 H. Suter, 49 J. D. Swain, 10 Z. Szillasi, ű. X. W. Tang, 7 P. Tarjan, 15 L. Tauscher, 5 L. Taylor, 10 B. Tellili, 24 D. Teyssier, 24 C. Timmermans, 31 S. C. C. Ting, 13 S. M. Ting, 13 S. C. Tonwar, 9 J. Tóth, 12 C. Tully, 37 K. L. Tung, 7 J. Ulbricht, 49 E. Valente, 39 R. T. Van de Walle, 31 R. Vasquez, 46 G. Vesztergombi, 12 I. Vetlitsky, 28 G. Viertel, 49 M. Vivargent, 4 S. Vlachos, 5 I. Vodopianov, 26 H. Vogel, 35 H. Vogt, 48 I. Vorobiev, 28 A. A. Vorobyov, 34 M. Wadhwa, 5 Q. Wang31 X. L. Wang, 22 Z. M. Wang, 22 M. Weber, 18 S. Wynhoff, Ď. L. Xia, 32 Z. Z. Xu, 22 J. Yamamoto, 3 B. Z. Yang, 22 C. G. Yang, 7 H. J. Yang, 3 M. Yang, 7 S. C. Yeh, 45 A.n. Zalite, 34 Y.u. Zalite, 34 Z. P. Zhang, 22 J. Zhao, 22 G. Y. Zhu, 7 R. Y. Zhu, 32 H. L. Zhuang, 7 A. Zichichi, 8, 18, 19 B. Zimmermann, 49 M. Zöller, G. Abbiendi2, K. Ackerstaff7, C. Ainsley5, P. F. Åkesson7, G. Alexander21, J. Allison15, N. Altekamp5, K. Ametewee25, G. Anagnostou1, K. J. Anderson8, S. Anderson11, S. Asai22, S. F. Ashby1, D. Axen26, G. Azuelos17, A. H. Ball7, I. Bailey25, E. Barberio7, p, T. Barillari31, R. J. Barlow15, R. Bartoldus3, R. J. Batley5, S. Baumann3, P. Bechtle24, J. Bechtluft13, C. Beeston15, T. Behnke24, K. W. Bell19, P. J. Bell1, G. Bella21, A. Bellerive6, G. Benelli4, S. Bentvelsen7, P. Berlich9, S. Bethke31, O. Biebel30, O. Boeriu9, V. Blobel24, I. J. Bloodworth1, J. E. Bloomer1, M. Bobinski9, P. Bock10, H. M. Bosch10, M. Boutemeur30, B. T. 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Gascon Shotkin16, G. Gaycken24, N. I. Geddes19, C. Geich Gimbel3, T. Geralis19, G. Giacomelli2, P. Giacomelli2, R. Giacomelli2, V. Gibson5, W. R. Gibson12, D. M. Gingrich27, M. Giunta4, D. Glenzinski8, J. Goldberg20, M. J. Goodrick5, W. Gorn4, K. Graham25, C. Grandi2, E. Gross23, J. Grunhaus21, M. Gruwé7, P. O. Günther3, A. Gupta8, C. Hajdu28, M. Hamann24, G. G. Hanson4, M. Hansroul7, M. Hapke12, K. Harder24, A. Harel20, C. K. Hargrove6, M. Harin Dirac4, P. A. Hart8, C. Hartmann3, A. Hauke3, M. Hauschild7, C. M. Hawkes1, R. Hawkings7, R. J. Hemingway6, C. Hensel24, M. Herndon16, G. Herten9, R. D. Heuer24, y, M. D. Hildreth7, J. C. Hill5, S. J. Hillier1, T. Hilse9, P. R. Hobson33, A. Hocker8, K. Hoffman7, R. J. Homer1, A. K. Honma7, D. Horváth28, K. R. Hossain27, R. Howard26, R. E. Hughes Jones15, P. Hüntemeyer24, D. E. Hutchcroft5, P. Igo Kemenes10, D. C. Imrie25, M. R. Ingram15, K. Ishii22, F. R. Jacob19, A. Jawahery16, P. W. Jeffreys19, H. Jeremie17, M. Jimack1, A. Joly17, C. R. 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Posthaus3, M. Przybycień7, n, H. Przysiezniak27, A. Quadt31, K. Rabbertz7, D. L. Rees1, C. Rembser7, P. Renkel23, H. Rick4, D. Rigby1, S. Robertson25, S. A. Robins12, N. Rodning27, J. M. Roney25, A. Rooke14, E. Ros7, S. Rosati3, K. Roscoe15, A. M. Rossi2, M. Rosvick25, P. Routenburg27, Y. Rozen20, K. Runge9, O. Runolfsson7, U. Ruppel13, D. R. Rust11, R. Rylko25, K. Sachs6, T. Saeki22, O. Sahr30, E. K. G. Sarkisyan7, j, M. Sasaki22, C. Sbarra2, A. D. Schaile30, O. Schaile30, P. Scharff Hansen7, P. Schenk24, J. Schieck31, B. Schmitt7, S. Schmitt10, T. Schörner Sadenius7, M. Schröder7, H. C. Schultz Coulon9, M. Schulz7, M. Schumacher3, P. Schütz3, C. Schwick7, W. G. Scott19, R. Seuster13, T. G. Shears7, h, B. C. Shen4, C. H. Shepherd Themistocleous19, P. Sherwood14, A. Sittler24, A. Skillman14, A. Skuja16, A. M. Smith7, T. J. Smith25, G. A. Snow16, R. Sobie25, S. Söldner Rembold15, S. Spagnolo19, F. Spano8, x, R. W. Springer27, M. Sproston19, A. Stahl13, M. Steiert10, K. Stephens15, J. Steuerer24, B. Stockhausen3, K. Stoll9, D. Strom18, R. Ströhmer30, F. Strumia7, L. Stumpf25, B. Surrow7, P. Szymanski19, R. Tafirout17, S. D. Talbot1, S. Tanaka22, P. Taras17, S. Tarem20, R. J. Taylor14, M. Tasevsky7, d, R. Teuscher8, M. Thiergen9, J. Thomas14, M. A. Thomson5, E. von Törne3, E. Torrence18, S. Towers6, D. Toya22, T. Trefzger30, I. Trigger7, w, Z. Trócsányi29, T. Tsukamoto22, E. Tsur21, A. S. Turcot8, M. F. Turner Watson1, I. Ueda22, B. Ujvári29, P. Utzat10, B. Vachon25, R. Van Kooten11, P. Vannerem9, R. Vértesi29, M. Verzocchi16, P. Vikas17, M. Vincter25, E. H. Vokurka15, C. F. Vollmer30, H. Voss7, q, J. Vossebeld7, F. Wäckerle9, A. Wagner24, D. Waller6, C. P. Ward5, D. R. Ward5, J. J. Ward14, P. M. Watkins1, A. T. Watson1, N. K. Watson1, P. S. Wells7, T. Wengler7, N. Wermes3, D. Wetterling10 J. S. White25, B. Wilkens9, G. W. Wilson15, k, J. A. Wilson1, G. Wolf23, S. Wotton5, T. R. Wyatt15, S. Yamashita22, G. Yekutieli23, V. Zacek17, D. Zer Zion4, L. Zivkovic2, ROVELLI, TIZIANO, BASILE, MAURIZIO, CIFARELLI, LUISA, ARCELLI, SILVIA, BONACORSI, DANIELE, BRAIBANT, SYLVIE, CAPILUPPI, PAOLO, CUFFIANI, MARCO, SIROLI, GIAN PIERO, Department of Energy (US), National Science Foundation (US), Science and Technology Facilities Council (UK), Natural Sciences and Engineering Research Council of Canada, Israel Science Foundation, Ministry of Education, Culture, Sports, Science and Technology (Japan), Japan Society for the Promotion of Science, German-Israeli Foundation for Scientific Research and Development, Federal Ministry of Education and Research (Germany), National Research Council of Canada, North Atlantic Treaty Organization, Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Théorique et Astroparticules (LPTA), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), ALEPH, DELPHI, L3, OPAL, Massachusetts Institute of Technology. Department of Physics, Massachusetts Institute of Technology. Laboratory for Nuclear Science, S. Schael, 1 R. Barate, 2 R. Brunelière, 2 D. Buskulic, 2 I. De Boni, 2 D. Decamp, 2 P. Ghez, 2 C. Goy, 2 S. Jézéquel, 2 J.-P. Lee, 2 A. Lucotte, 2 F. Martin, 2 E. Merle, 2 M.-N. Minard, 2 J.-Y. Nief, 2 P. Odier, 2 B. Pietrzyk, 2 B. Trocmé, 2 S. Bravo, 3 M.P. Casado, 3 M. Chmeissani, 3 P. Coma, 3 J.M. Crespo, 3 E. Fernandez, 3 M. Fernandez-Bosman, 3 Ll. Garrido, a15 E. Grauge, 3 A. Juste, 3 M. Martinez, 3 G. Merino, 3 R. Miquel, 3 Ll.M. Mir, 3 S. Orteu, 3 A. Pacheco, 3 I.C. Park, 3 J. Perla, 3 I. Riu, 3 H. Ruiz, 3 F. Sanchez, 3 A. Colaleo, 4 D. Creanza, 4 N. De Filippi, 4 M. de Palma, 4 G. Iaselli, 4 G. Maggi, 4 M. Maggi, 4 S. Nuzzo, 4 A. Ranieri, 4 G. Raso, a24 F. Ruggieri, 4 G. Selvaggi, 4 L. Silvestri, 4 P. Tempesta, 4 A. Tricomi, a3 G. Zito, 4 X. Huang, 5 J. Lin, 5 Q. Ouyang, 5 T. Wang, 5 Y. Xie, 5 R. Xu, 5 S. Xue, 5 J. Zhang, 5 L. Zhang, 5 W. Zhao, 5 D. Abbaneo, 6 A. Bazarko, 6 U. Becker, 6 G. Boix, a33 F. Bird, 6 E. Blucher, 6 B. Bonvicini, 6 P. Bright-Thoma, 6 T. Barklow, a26 O. Buchmüller, a26 M. Cattaneo, 6 F. Cerutti, 6 V. Ciulli, 6 B. Clerbaux, a23 H. Drevermann, 6 R.W. Forty, 6 M. Frank, 6 T.C. Greening, 6 R. Hagelberg, 6 A.W. Halley, 6 F. Gianotti, 6 M. Girone, 6 J.B. Hansen, 6 J. Harvey, 6 R. Jacobsen, 6 D.E. Hutchcroft, a30 P. Janot, 6 B. Jost, 6 J. Knobloch, 6 M. Kado, a2 I. Lehrau, 6 P. Lazeyra, 6 P. Maley, 6 P. Mato, 6 J. May, 6 A. Moutoussi, 6 M. Pepe-Altarelli, 6 F. Ranjard, 6 L. Rolandi, 6 D. Schlatter, 6 B. Schmitt, 6 O. Schneider, 6 W. Tejessy, 6 F. Teubert, 6 I.R. Tomalin, 6 E. Tournefier, 6 R. Veenhof, 6 A. Valassi, 6 W. Wiedenmann, 6 A.E. Wright, 6 Z. Ajaltouni, 7 F. Badaud, 7 G. Chazelle, 7 O. Deschamp, 7 S. Dessagne, 7 A. Falvard, a20 C. Ferdi, 7 D. Fayolle, 7 P. Gay, 7 C. Guicheney, 7 P. Henrard, 7 J. Jousset, 7 B. Michel, 7 S. Monteil, 7 J.C. Montret, 7 D. Pallin, 7 J.M. Pascolo, 7 P. Perret, 7 F. Podlyski, 7 H. Bertelsen, 8 T. Fernley, 8 J.D. Hansen, 8 J.R. Hansen, 8 P.H. Hansen, 8 A.C. Kraan, 8 A. Lindahl, 8 R. Mollerud, 8 B.S. Nilsson, 8 B. Rensch, 8 A. Waananen, 8 G. Daskalaki, 9 A. Kyriaki, 9 C. Markou, 9 E. Simopoulou, 9 I. Sioti, 9 A. Vayaki, 9 K. Zachariadou, 9 A. Blondel, a12 G. Bonneaud, 10 J.-C. Brient, 10 F. Machefert, 10 A. Rougé, 10 M. Rumpf, 10 M. Swynghedauw, 10 R. Tanaka, 10 M. Verderi, 10 H. Videau, 10 V. Ciulli, 11 E. Focardi, 11 G. Parrini, 11 K. Zachariadou, 11 M. Corden, 12 C. Georgiopoulo, 12 A. Antonelli, 13 M. Antonelli, 13 G. Bencivenni, 13 G. Bologna, a34 F. Bossi, 13 P. Campana, 13 G. Capon, 13 F. Cerutti, 13 V. Chiarella, 13 G. Felici, 13 P. Laurelli, 13 G. Mannocchi, a5 G.P. Murta, 13 L. Passalacqua, 13 P. Picchi, 13 P. Colrain, 14 I. ten Have, 14 I.S. Hughe, 14 J. Kennedy, 14 I.G. Knowle, 14 J.G. Lynch, 14 W.T. Morton, 14 P. Negu, 14 V. O’Shea, 14 C. Raine, 14 P. Reeve, 14 J.M. Scarr, 14 K. Smith, 14 A.S. Thompson, 14 R.M. Turnbull, 14 S. Wasserbaech, 15 O. Buchmüller, 16 R. Cavanaugh, a4 S. Dhamotharan, a21 C. Geweniger, 16 P. Hanke, 16 G. Hansper, 16 V. Hepp, 16 E.E. Kluge, 16 A. Putzer, 16 J. Sommer, 16 H. Stenzel, 16 K. Tittel, 16 W. Werner, 16 M. Wunsch, a19 R. Beuselinck, 17 D.M. Binnie, 17 W. Cameron, 17 G. Davie, 17 P.J. Dornan, 17 S. Goodsir, 17 N. Marinelli, 17 E.B Martin, 17 J. Nash, 17 J. Nowell, 17 S.A. Rutherford, 17 J.K. Sedgbeer, 17 J.C. Thompson, a14 R. White, 17 M.D. William, 17 V.M. Ghete, 18 P. Girtler, 18 E. Kneringer, 18 D. Kuhn, 18 G. Rudolph, 18 E. Bouhova-Thacker, 19 C.K. Bowdery, 19 P.G. Buck, 19 D.P. Clarke, 19 G. Elli, 19 A.J. Finch, 19 F. Foster, 19 G. Hughe, 19 R.W.L. Jone, 19 N.R. Keemer, 19 M.R. Pearson, 19 N.A. Robertson, 19 T. Sloan, 19 M. Smizanska, 19 S.W. Snow, 19 M.I. William, 19 O. van der Aa, 20 C. Delaere, a28 G.Leibenguth, a31 V. Lemaitre, a29 L.A.T. Bauerdick, 21 U. Blumenschein, 21 P. van Gemmeren, 21 I. Giehl, 21 F. Hölldorfer, 21 K. Jakob, 21 M. Kasemann, 21 F. Kayser, 21 K. Kleinknecht, 21 A.-S. Müller, 21 G. Quast, 21 B. Renk, 21 E. Rohne, 21 H.-G. Sander, 21 S. Schmeling, 21 H. Wachsmuth, 21 R. Wanke, 21 C. Zeitnitz, 21 T. Ziegler, 21 J.J. Aubert, 22 C. Benchouk, 22 A. Bonissent, 22 J. Carr, 22 P. Coyle, 22 C. Curtil, 22 A. Ealet, 22 F. Etienne, 22 D. Fouchez, 22 F. Motsch, 22 P. Payre, 22 D. Rousseau, 22 A. Tilquin, 22 M. Talby, 22 M.Thulasida, 22 M. Aleppo, 23 M. Antonelli, 23 F. Ragusa, 23 V. Büscher, 24 A. David, 24 H. Dietl, a32 G. Gani, a27 K. Hüttmann, 24 G. Lütjen, 24 C. Mannert, 24 W. Männer, a32 H.-G. Moser, 24 R. Settle, 24 H. Seywerd, 24 H. Stenzel, 24 M. Villega, 24 W. Wiedenmann, 24 G. Wolf, 24 P. Azzurri, 25 J. Boucrot, 25 O. Callot, 25 S. Chen, 25 A. Cordier, 25 M. Davier, 25 L. Duflot, 25 J.-F. Grivaz, 25 Ph. Heusse, 25 A. Jacholkowska, a6 F. Le Diberder, 25 J. Lefrançoi, 25 A.M. Mutz, 25 M.H. Schune, 25 L. Serin, 25 J.-J. Veillet, 25 I. Videau, 25 D. Zerwa, 25 P. Azzurri, 26 G. Bagliesi, 26 S. Bettarini, 26 T. Boccali, 26 C. Bozzi, 26 G. Calderini, 26 R. Dell’Orso, 26 R. Fantechi, 26 I. Ferrante, 26 F. Fidecaro, 26 L. Foà, 26 A. Giammanco, 26 A. Giassi, 26 A. Gregorio, 26 F. Ligabue, 26 A. Lusiani, 26 P.S. Marrocchesi, 26 A. Messineo, 26 F. Palla, 26 G. Rizzo, 26 G. Sanguinetti, 26 A. Sciabà, 26 G. Sguazzoni, 26 P. Spagnolo, 26 J. Steinberger, 26 R. Tenchini, 26 C. Vannini, 26 A. Venturi, 26 P.G. Verdini, 26 O. Awunor, 27 G.A. Blair, 27 G. Cowan, 27 A. Garcia-Bellido, 27 M.G. Green, 27 T. Medcalf, 27 A. Misiejuk, 27 J.A. Strong, 27 P. Teixeira-Dia, 27 D.R. Botterill, 28 R.W. Clifft, 28 T.R. Edgecock, 28 M. Edward, 28 S.J. Haywood, 28 P.R. Norton, 28 I.R. Tomalin, 28 J.J. Ward, 28 B. Bloch-Devaux, 29 D. Boumediene, 29 P. Cola, 29 S. Emery, 29 B. Fabbro, 29 W. Kozanecki, 29 E. Lançon, 29 M.-C. Lemaire, 29 E. Locci, 29 P. Perez, 29 J. Rander, 29 J.F. Renardy, 29 A. Roussarie, 29 J.P. Schuller, 29 J. Schwindling, 29 B. Tuchming, 29 B. Vallage, 29 S.N. Black, 30 J.H. Dann, 30 H.Y. Kim, 30 N. Konstantinidi, 30 A.M. Litke, 30 M.A. McNeil, 30 G. Taylor, 30 C.N. Booth, 31 S. Cartwright, 31 F. Combley, a25 P.N. Hodgson, 31 M. Lehto, 31 L.F. Thompson, 31 K. Affholderbach, 32 E. Barberio, 32 A. Böhrer, 32 S. Brandt, 32 H. Burkhardt, 32 E. Feigl, 32 C. Grupen, 32 J. He, 32 G. Lutter, 32 H. Meinhard, 32 J. Minguet-Rodriguez, 32 L. Mirabito, 32 A. Misiejuk, 32 E. Neugebauer, 32 A. Ngac, 32 G. Prange, 32 F. Rivera, 32 P. Saraiva, 32 U. Schäfer, 32 U. Sieler, 32 L. Smolik, 32 F. Stephan, 32 H. Trier, 32 M. Apollonio, 33 C. Borean, 33 L. Bosisio, 33 R. Della Marina, 33 G. Giannini, 33 B. Gobbo, 33 G. Musolino, 33 L. Piti, 33 H. He, 34 H. Kim, 34 J. Putz, 34 J. Rothberg, 34 S.R. Armstrong, 35 L. Bellantoni, 35 K. Berkelman, 35 D. Cinabro, 35 J.S. Conway, 35 K. Cranmer, 35 P. Elmer, 35 Z. Feng, 35 D.P.S. Ferguson, 35 Y. Gao, a13 S. González, 35 J. Grahl, 35 J.L. Harton, 35 O.J. Haye, 35 H. Hu, 35 S. Jin, 35 R.P. Johnson, 35 J. Kile, 35 P.A. McNamara III, 35 J. Nielsen, 35 W. Orejudo, 35 Y.B. Pan, 35 Y. Saadi, 35 I.J. Scott, 35 V. Sharma, 35 A.M. Walsh, 35 J. Walsh, 35 J. Wear, 35 J.H. von Wimmersperg-Toeller, 35 W. Wiedenmann, 35 J. Wu, 35 S.L. Wu, 35 X. Wu, 35 J.M. Yamartino, 35 G. Zobernig, 35 G. Dissertori, J. Abdallah, 27 P. Abreu, 24 W. Adam, 56 P. Adzic, 13 T. Albrecht, 19 R. Alemany-Fernandez, 10 T. Allmendinger, 19 P.P. Allport, 25 U. Amaldi, 31 N. Amapane, 49 S. Amato, 53 E. Anashkin, 38 A. Andreazza, 30 S. Andringa, 24 N. Anjo, 24 P. Antilogu, 27 W-D. Apel, 19 Y. Arnoud, 16 S. Ask, 10 B. Asman, 48 J.E. Augustin, 27 A. Augustinu, 10 P. Baillon, 10 A. Ballestrero, 50 P. Bambade, 22 R. Barbier, 29 D. Bardin, 18 G.J. Barker, 58 A. Baroncelli, 41 M. Battaglia, 10 M. Baubillier, 27 K-H. Beck, 59 M. Begalli, 8 A. Behrmann, 59 K. Belou, 44 E. Ben-Haim, 27 N. Beneko, 34 A. Benvenuti, 6 C. Berat, 16 M. Berggren, 27 L. Berntzon, 48 D. Bertrand, 3 M. Besancon, 42 N. Besson, 42 D. Bloch, 11 M. Blom, 33 M. Bluj, 57 M. Bonesini, 31 M. Boonekamp, 42 P.S.L. BoothĎ, 25 G. Borisov, 23 O. Botner, 54 B. Bouquet, 22 T.J.V. Bowcock, 25 I. Boyko, 18 M. Bracko, 45 R. Brenner, 54 E. Brodet, 37 P. Bruckman, 20 J.M. Brunet, 9 L. Bugge, 35 B. Buschbeck, 56 P. Buschmann, 59 M. Calvi, 31 T. Camporesi, 10 V. Canale, 40 F. Carena, 10 N. Castro, 24 F. Cavallo, 6 M. Chapkin, 44 Ph. Charpentier, 10 P. Checchia, 38 R. Chierici, 29 P. Chliapnikov, 44 J. Chudoba, 14 K. Cieslik, 20 P. Collin, 10 R. Contri, 15 G. Cosme, 22 F. Cossutti, 51 M.J. Costa, 55 B. Crawley, 1 D. Crennell, 39 J. Cueva, 36 J. D’Hondt, 3 J. Dalmau, 48 T. da Silva, 53 W. Da Silva, 27 G. Della Ricca, 51 A. De Angeli, 52 W. De Boer, 19 C. De Clercq, 3 B. De Lotto, 52 N. De Maria, 49 A. De Min, 38 L. de Paula, 53 L. Di Ciaccio, 40 A. Di Simone, 40 K. Doroba, 57 J. Dree, 59 M. Dri, 34 A. Duperrin, 29 G. Eigen, 5 T. Ekelof, 54 M. Ellert, 54 M. Elsing, 10 M.C. Espirito Santo, 24 G. Fanouraki, 13 D. Fassoulioti, 4 M. Feindt, 19 J. Fernandez, 43 A. Ferrer, 55 F. Ferro, 15 U. Flagmeyer, 59 H. Foeth, 10 E. Fokiti, 34 F. Fulda-Quenzer, 22 J. Fuster, 55 M. Gandelman, 53 C. Garcia, 55 Ph. Gavillet, 10 E. Gazi, 34 D. Gele, 11 R. GokieliĎ, 57 B. Golob, 47 G. Gomez-Ceballo, 43 P. Gonçalve, 24 E. Graziani, 41 G. Grosdidier, 22 K. Grzelak, 57 J. Guy, 39 C. Haag, 19 A. Hallgren, 54 K. Hamacher, 59 K. Hamilton, 37 S. Haug, 35 F. Hauler, 19 V. Hedberg, 28 M. Hennecke, 19 H. HerrĎ, 10 J. Hoffman, 57 S-O. Holmgren, 48 P.J. Holt, 10 M.A. Houlden, 25 K. Hultqvist, 48 J.N. Jackson, 25 G. Jarlskog, 28 P. Jarry, 42 D. Jean, 37 E.K. Johansson, 48 P.D. Johansson, 48 P. Jonsson, 29 C. Joram, 10 L. Jungermann, 19 F. Kapusta, 27 S. Katsaneva, 29 E. Katsoufi, 34 G. Kernel, 45 B.P. Kersevan, 47 U. Kerzel, 19 A. Kiiskinen, 17 B.T. King, 25 N.J. Kjaer, 10 P. Kluit, 33 P. Kokkinia, 13 V. Kostioukhine, 15 C. Kourkoumeli, 4 O. Kouznetsov, 18 Z. Krumstein, 18 M. Kucharczyk, 20 J. Lamsa, 1 G. Leder, 56 F. Ledroit, 16 L. Leinonen, 48 R. Leitner, 32 J. Lemonne, 3 V. LepeltierĎ, 22 T. Lesiak, 20 J. Libby, 37 W. Liebig, 59 D. Liko, 56 A. Lipniacka, 5 J.H. Lope, 53 J.M. Lopez, 36 D. Louka, 13 P. Lutz, 42 L. Lyon, 37 J. MacNaughton, 56 A. Malek, 59 S. Maltezo, 34 F. Mandl, 56 J. Marco, 43 R. Marco, 43 B. Marechal, 53 M. Margoni, 38 J-C. Marin, 10 C. Mariotti, 10 A. Markou, 13 C. Martinez-Rivero, 43 J. Masik, 14 N. Mastroyiannopoulo, 13 F. Matorra, 43 C. Matteuzzi, 31 F. Mazzucato, 38 M. Mazzucato, 38 R. Mc Nulty, 25 C. Meroni, 30 W.T. Meyer, 1 E. Migliore, 49 W. Mitaroff, 56 U. Mjoernmark, 28 T. Moa, 48 M. Moch, 19 K. Moenig, 12 R. Monge, 15 J. Montenegro, 33 D. Morae, 53 P. Morettini, 15 U. Mueller, 59 K. Muenich, 59 M. Mulder, 33 L. Mundim, 8 W. Murray, 39 B. Muryn, 21 G. Myatt, 37 T. Myklebust, 35 M. Nassiakou, 13 F. Navarria, 6 K. Nawrocki, 57 S. Nemecek, 14 R. Nicolaidou, 42 V. Nikolaenko, 11 M. Nikolenko, 11 A. Oblakowska-Mucha, 21 V.Obraztsov, 44 A. Olshevski, 18 A. Onofre, 24 R. Orava, 17 K. Osterberg, 17 A. Ouraou, 42 A. Oyanguren, 55 M. Paganoni, 31 S. Paiano, 6 J.P. Palacio, 25 H. PalkaĎ, 20 Th.D. 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S., Merritt, H., Me, N., Meyer, J., Meyer, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, R., Mir, W., Mohr, A., Montanari, T., Mori, M., Morii, A., Mutter, K., Nagai, I., Nakamura, H., Nanjo, H. A., Neal, B., Nellen, B., Nijjhar, R., Nisiu, S. W., O'Neale, F. G., Oakham, F., Odorici, H. O., Ogren, A., Oh, A., Okpara, N. J., Oldershaw, T., Omori, M. J., Oreglia, S., Orito, C., Pahl, J., Palinka, G., Pasztor, J. R., Pater, G. N., Patrick, J., Patt, M. J., Pearce, S., Petzold, P., Pfeifenschneider, J. E., Pitcher, J., Pinfold, D. E., Plane, P., Poffenberger, J., Polok, B., Poli, O., Pooth, A., Posthau, M., Przybycien, H., Przysiezniak, A., Quadt, K., Rabbertz, D. L., Ree, C., Rembser, P., Renkel, H., Rick, D., Rigby, S., Robertson, S. A., Robin, N., Rodning, J. M., Roney, A., Rooke, E., Ro, S., Rosati, K., Roscoe, A. M., Rossi, M., Rosvick, P., Routenburg, Y., Rozen, K., Runge, O., Runolfsson, U., Ruppel, D. R., Rust, R., Rylko, K., Sach, T., Saeki, O., Sahr, E. K., G., M., Sasaki, C., Sbarra, A. D., Schaile, O., Schaile, P., Scharff Hansen, P., Schenk, J., Schieck, S., Schmitt, T., Schoerner Sadeniu, M., Schroeder, H. C., Schultz Coulon, M., Schulz, M., Schumacher, P., Schuetz, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, G. P., Siroli, A., Sittler, A., Skillman, A., Skuja, A. M., Smith, T. J., Smith, G. A., Snow, R., Sobie, S., Soeldner Rembold, S., Spagnolo, F., Spano, R. W., Springer, M., Sproston, A., Stahl, M., Steiert, K., Stephen, J., Steuerer, B., Stockhausen, K., Stoll, D., Strom, R., Stroehmer, F., Strumia, L., Stumpf, B., Surrow, P., Szymanski, R., Tafirout, S. D., Talbot, S., Tanaka, P., Tara, S., Tarem, R. J., Taylor, M., Tasevsky, R., Teuscher, M., Thiergen, M. A., Thomson, E. v., Toerne, E., Torrence, S., Tower, D., Toya, T., Trefzger, I., Trigger, Z., Trocsanyi, T., Tsukamoto, E., Tsur, A. S., Turcot, M. F., Turner Watson, I., Ueda, B., Ujvari, P., Utzat, B., Vachon, R. V., Kooten, P., Vannerem, R., Vertesi, M., Verzocchi, P., Vika, M., Vincter, E. H., Vokurka, C. F., Vollmer, H., Vo, J., Vossebeld, F., Waeckerle, A., Wagner, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, J. S., White, B., Wilken, G. W., Wilson, J. A., Wilson, S., Wotton, T. R., Wyatt, S., Yamashita, G., Yekutieli, V., Zacek, D., Zer Zion, L., Zivkovic, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), ALEPH Collaboration, DELPHI Collaboration, L3 Collaboration, OPAL Collaboration, LEP Electroweak Working Group, Schael, S, Barate, R, Brunelière, R, Buskulic, D, De Bonis, I, Decamp, D, Ghez, P, Goy, C, Jézéquel, S, Lees, J, Lucotte, A, Martin, F, Merle, E, Minard, M, Nief, J, Odier, P, Pietrzyk, B, Trocmé, B, Bravo, S, Casado, M, Chmeissani, M, Comas, P, Crespo, J, Fernandez, E, Fernandez Bosman, M, Garrido, L, Grauges, E, Juste, A, Martinez, M, Merino, G, Miquel, R, Mir, L, Orteu, S, Pacheco, A, Park, I, Perlas, J, Riu, I, Ruiz, H, Sanchez, F, Colaleo, A, Creanza, D, De Filippis, N, de Palma, M, Iaselli, G, Maggi, G, Maggi, M, Nuzzo, S, Ranieri, A, Raso, G, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Tricomi, A, Zito, G, Huang, X, Lin, J, Ouyang, Q, Wang, T, Xie, Y, Xu, R, Xue, S, Zhang, J, Zhang, L, Zhao, W, Abbaneo, D, Bazarko, A, Becker, U, Boix, G, Bird, F, Blucher, E, Bonvicini, B, Bright Thomas, P, Barklow, T, Buchmüller, O, Cattaneo, M, Cerutti, F, Ciulli, V, Clerbaux, B, Drevermann, H, Forty, R, Frank, M, Greening, T, Hagelberg, R, Halley, A, Gianotti, F, Girone, M, Hansen, J, Harvey, J, Jacobsen, R, Hutchcroft, D, Janot, P, Jost, B, Knobloch, J, Kado, M, Lehraus, I, Lazeyras, P, Maley, P, Mato, P, May, J, Moutoussi, A, Pepe Altarelli, M, Ranjard, F, Rolandi, L, Schlatter, D, Schmitt, B, Schneider, O, Tejessy, W, Teubert, F, Tomalin, I, Tournefier, E, Veenhof, R, Valassi, A, Wiedenmann, W, Wright, A, Ajaltouni, Z, Badaud, F, Chazelle, G, Deschamps, O, Dessagne, S, Falvard, A, Ferdi, C, Fayolle, D, Gay, P, Guicheney, C, Henrard, P, Jousset, J, Michel, B, Monteil, S, Montret, J, Pallin, D, Pascolo, J, Perret, P, Podlyski, F, Bertelsen, H, Fernley, T, Hansen, P, Kraan, A, Lindahl, A, Mollerud, R, Nilsson, B, Rensch, B, Waananen, A, Daskalakis, G, Kyriakis, A, Markou, C, Simopoulou, E, Siotis, I, Vayaki, A, Zachariadou, K, Blondel, A, Bonneaud, G, Brient, J, Machefert, F, Rougé, A, Rumpf, M, Swynghedauw, M, Tanaka, R, Verderi, M, Videau, H, Focardi, E, Parrini, G, Corden, M, Georgiopoulos, C, Antonelli, A, Antonelli, M, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Felici, G, Laurelli, P, Mannocchi, G, Murtas, G, Passalacqua, L, Picchi, P, Colrain, P, ten Have, I, Hughes, I, Kennedy, J, Knowles, I, Lynch, J, Morton, 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Silva, E, Donkers, M, Doucet, M, Dubbert, J, Duchovni, E, Duckeck, G, Duerdoth, I, Edwards, J, Estabrooks, P, Etzion, E, Evans, H, Evans, M, Fabbri, F, Fanti, M, Fath, P, Feld, L, Ferrari, P, Fiedler, F, Fierro, M, Fischer, H, Fleck, I, Folman, R, Fong, D, Ford, M, Foucher, M, Frey, A, Fürtjes, A, Futyan, D, Gagnon, P, Gary, J, Gascon, J, Gascon Shotkin, S, Gaycken, G, Geddes, N, Geich Gimbel, C, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, W, Gingrich, D, Giunta, M, Glenzinski, D, Goldberg, J, Goodrick, M, Gorn, W, Graham, K, Grandi, C, Gross, E, Grunhaus, J, Gruwé, M, Günther, P, Gupta, A, Hajdu, C, Hamann, M, Hanson, G, Hansroul, M, Hapke, M, Harder, K, Harel, A, Hargrove, C, Harin Dirac, M, Hart, P, Hartmann, C, Hauke, A, Hauschild, M, Hawkes, C, Hawkings, R, Hemingway, R, Hensel, C, Herndon, M, Herten, G, Heuer, R, Hildreth, M, Hill, J, Hillier, S, Hilse, T, Hobson, P, Hocker, A, Hoffman, K, Homer, R, Honma, A, Horváth, D, Hossain, K, Howard, R, Hughes Jones, R, Hüntemeyer, P, Igo Kemenes, P, Imrie, D, Ingram, M, Ishii, K, Jacob, F, Jawahery, A, Jeffreys, P, Jeremie, H, Jimack, M, Joly, A, Jones, C, Jones, G, Jones, M, Jost, U, Jovanovic, P, Junk, T, Kanaya, N, Kanzaki, J, Karapetian, G, Karlen, D, Kartvelishvili, V, Kawagoe, K, Kawamoto, T, Keeler, R, Kellogg, R, Kennedy, B, Kim, D, Kirk, J, Klein, K, Klier, A, Kluth, S, Kobayashi, T, Kobel, M, Koetke, D, Kokott, T, Kolrep, M, Komamiya, S, Kowalewski, R, Krämer, T, Krasznahorkay, A, Kress, T, Krieger, P, von Krogh, J, Kuhl, T, Kupper, M, Kyberd, P, Lafferty, G, Lahmann, R, Lai, W, Landsman, H, Lanske, D, Lauber, J, Lautenschlager, S, Lawson, I, Layter, J, Lazic, D, Lee, A, Lefebvre, E, Leins, A, Lellouch, D, Letts, J, Levinson, L, Lewis, C, Liebisch, R, Lillich, J, List, B, List, J, Littlewood, C, Lloyd, A, Lloyd, S, Loebinger, F, Long, G, Losty, M, Lu, J, Ludwig, A, Ludwig, J, Macchiolo, A, Macpherson, A, Mader, W, Mannelli, M, Marcellini, S, Marchant, T, Markus, C, Martin, A, Martinez, G, Mashimo, T, Matthews, W, Mättig, P, Mcdonald, W, Mckenna, J, Mckigney, E, Mcmahon, T, Mcnab, A, Mcpherson, R, Mendez Lorenzo, P, Meijers, F, Menges, W, Menke, S, Merritt, F, Mes, H, Meyer, N, Meyer, J, Michelini, A, Mihara, S, Mikenberg, G, Miller, D, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Müller, U, Mutter, A, Nagai, K, Nakamura, I, Nanjo, H, Neal, H, Nellen, B, Nijjhar, B, Nisius, R, O'Neale, S, Oakham, F, Odorici, F, Ogren, H, Oh, A, Okpara, A, Oldershaw, N, Omori, T, Oreglia, M, Orito, S, Pahl, C, Pálinkás, J, Pásztor, G, Pater, J, Patrick, G, Patt, J, Pearce, M, Petzold, S, Pfeifenschneider, P, Pilcher, J, Pinfold, J, Plane, D, Poffenberger, P, Polok, J, Poli, B, Pooth, O, Posthaus, A, Przybycien, M, Przysiezniak, H, Quadt, A, Rabbertz, K, Rees, D, Rembser, C, Renkel, P, Rick, H, Rigby, D, Robertson, S, Robins, S, Rodning, N, Roney, J, Rooke, A, Ros, E, Rosati, S, Roscoe, K, Rossi, A, Rosvick, M, Routenburg, P, Rozen, Y, Runge, K, Runolfsson, O, Ruppel, U, Rust, D, Rylko, R, Sachs, K, Saeki, T, Sahr, O, Sarkisyan, E, Sasaki, M, Sbarra, C, Schaile, A, Schaile, O, Scharff Hansen, P, Schenk, P, Schieck, J, Schmitt, S, Schörner Sadenius, T, Schröder, M, Schultz Coulon, H, Schulz, M, Schumacher, M, Schütz, P, Schwick, C, Scott, W, Seuster, R, Shears, T, Shen, B, Shepherd Themistocleous, C, Sherwood, P, Siroli, G, Sittler, A, Skillman, A, Skuja, A, Smith, A, Smith, T, Snow, G, Sobie, R, Söldner Rembold, S, Spagnolo, S, Spano, F, Springer, R, Sproston, M, Stahl, A, Steiert, M, Stephens, K, Steuerer, J, Stockhausen, B, Stoll, K, Strom, D, Ströhmer, R, Strumia, F, Stumpf, L, Surrow, B, Szymanski, P, Tafirout, R, Talbot, S, Tanaka, S, Taras, P, Tarem, S, Taylor, R, Tasevsky, M, Teuscher, R, Thiergen, M, Thomson, M, von Törne, E, Torrence, E, Towers, S, Toya, D, Trefzger, T, Trigger, I, Trócsányi, Z, Tsukamoto, T, Tsur, E, Turcot, A, Turner Watson, M, Ueda, I, Ujvári, B, Utzat, P, Vachon, B, Van Kooten, R, Vannerem, P, Vértesi, R, Verzocchi, M, Vikas, P, Vincter, M, Vokurka, E, Vollmer, C, Voss, H, Vossebeld, J, Wäckerle, F, Wagner, A, Waller, D, Ward, C, Ward, D, Watkins, P, Watson, A, Watson, N, Wells, P, Wengler, T, Wermes, N, Wetterling, D, White, J, Wilkens, B, Wilson, G, Wilson, J, Wotton, S, Wyatt, T, Yamashita, S, Yekutieli, G, Zacek, V, Zer Zion, D, Zivkovic, L, Aloisio, Alberto, Alviggi, Mariagrazia, Canale, Vincenzo, Chiefari, Giovanni, DELLA VOLPE, Domenico, Merola, Leonardo, Sciacca, Crisostomo, Lista, Luca, Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), UCL - SST/IRMP - Institut de recherche en mathématique et physique, L3 (IHEF, IoP, FNWI), Delphi (IHEF, IoP, FNWI), Achard, Pablo, Bourquin, Maurice, Braccini, Saverio, Chamizo Llatas, Maria, Deglon, Patrick, Delmeire, Evelyne, Echenard, Bertrand, Extermann, Pierre, Field, John, Kienzle, Maria-Novella, Natale, Sonia, Pohl, Martin, and Straessner, Arno
Subjects: Top quark, PARTICLE PHYSICS, LARGE ELECTRON POSITRON COLLIDER, ALEPH, DELPHI, L3, OPAL, Electron–positron annihilation, Precision measurements at W-pair energies, WW boson, General Physics and Astronomy, COLOR DIPOLE MODEL, 01 natural sciences, 7. Clean energy, ZZ boson, Mathematical Sciences, High Energy Physics - Experiment, electroweak interactions, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), electron-positron physics, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FERMION-LOOP SCHEME, ANOMALOUS MAGNETIC-MOMENT, OF-MASS ENERGIES, TOP-QUARK MASS, CARLO EVENT GENERATOR, HADRONIC Z-DECAYS, INVARIANT YFS EXPONENTIATION, (UN)STABLE W+W-PRODUCTION, LEADING ORDER QCD, effective coupling constants, Boson, Physics, Electroweak interaction, Settore FIS/01 - Fisica Sperimentale, hep-ph, Precision measurements at WW-pair energies, Radiative corrections, Nuclear & Particles Physics, 3. Good health, Radiative correction, High Energy Physics - Phenomenology, Decays of heavy intermediate gauge bosons, Precision measurements at W-pair energie, Fermion-antifermion production, Physical Sciences, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Física nuclear, Production (computer science), decays of heavy intermediate gauge bosons, neutral weak current, w boson, tests of the standard model, precision measurements at w-pair energies, fermion-antifermion production, top quark, higgs boson, z boson, radiative corrections, Fermion–antifermion production, ELECTROWEAK INTERACTION, Tests of the Standard Model, Particle Physics - Experiment, Particle physics, Z boson, Electron-positron physic, Electroweak interactions, Higgs boson, FOS: Physical sciences, ddc:500.2, Decays of heavy intermediate gauge boson, Effective coupling constant, Partícules (Física nuclear), Standard Model, Nuclear physics, Physics and Astronomy (all), Neutral weak current, 0103 physical sciences, ddc:530, 010306 general physics, Effective coupling constants, Electron–positron physics, hep-ex, 010308 nuclear & particles physics, Branching fraction, High Energy Physics::Phenomenology, Electron-positron physics, W boson, Col·lisions (Física nuclear), [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], Experimental High Energy Physics, Large Electron–Positron Collider, High Energy Physics::Experiment
Abstract: The ALEPH, DELPHI, L3, OPAL collaborations and LEP Electroweak Working Group.-- arXiv:1302.3415, Electroweak measurements performed with data taken at the electron-positron collider LEP at CERN from 1995 to 2000 are reported. The combined data set considered in this report corresponds to a total luminosity of about 3 fb-1 collected by the four LEP experiments ALEPH, DELPHI, L3 and OPAL, at centre-of-mass energies ranging from 130 GeV to 209 GeV. Combining the published results of the four LEP experiments, the measurements include total and differential cross-sections in photon-pair, fermion-pair and four-fermion production, the latter resulting from both double-resonant W W and Z Z production as well as singly resonant production. Total and differential cross-sections are measured precisely, providing a stringent test of the Standard Model at centre-of-mass energies never explored before in electron-positron collisions. Final-state interaction effects in four-fermion production, such as those arising from colour reconnection and Bose-Einstein correlations between the two W decay systems arising in W W production, are searched for and upper limits on the strength of possible effects are obtained. The data are used to determine fundamental properties of the W boson and the electroweak theory. Among others, the mass and width of the W boson, mW and ΓW, the branching fraction of W decays to hadrons, B (W → had), and the trilinear gauge-boson self-couplings g1 Z, κγ and λγ are determined to be: mW=80.376±0.033 GeV ΓW=2.195±0.083 GeV B(W→had)=67.41±0.27% g1 Z=0.9840+0.018 -0.020 κγ=0.982±0.042λγ=-0.022±0.019., The ALEPH, DELPHI, L3, OPAL We are cknowledge to the Department of Energy, USA, National Science Foundation, USA, Particle Physics and Astronomy Research Council, UK, Natural Sciences and Engineering Research Council, Canada, Israel Science Foundation, administered by the Israel Academy of Science and Humanities, Benoziyo Center for High Energy Physics, Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT) and a grant under the MEXT International Science Research Program, Japanese Society for the Promotion of Science (JSPS), German Israeli Bi-national Science Foundation (GIF), Bundesministerium für Bildung und Forschung, Germany, National Research Council of Canada, Hungarian Foundation for Scientific Research, OTKA T-038240, and T-042864, The NWO/NATO Fund for Scientific Research, the Netherlands.
Published: 2013

9. Determination of α S using OPAL hadronic event shapes at $\sqrt{s} = 91\mbox{--}209~\mathrm{GeV}$ and resummed NNLO calculations

Author: P. Scharff-Hansen, Siegfried Bethke, C. Y. Chang, I. Nakamura, D. Axen, Oana Elena Vickey Boeriu, A. M. Smith, Gideon Bella, J. W. Gary, H. J. Burckhart, H. Mes, A. J. Martin, I. P. Duerdoth, Peter Sherwood, Marek Tasevsky, Richard Teuscher, Dezso Horvath, J. Ludwig, K. Runge, P. Bock, D. Zer-Zion, James Pinfold, A. Quadt, R. Seuster, Gunter Wolf, Oliver Pooth, F. K. Loebinger, Ivor Fleck, R. G. Kellogg, Csaba Hajdu, Alexander Oh, Stefano Marcellini, James Letts, Joleen Pater, Edward K. G. Sarkisyan, D. Toya, Graham Wilson, Christoph Geich-Gimbel, Balazs Ujvari, H. A. Neal, Yoram Rozen, D. Karlen, W. Mader, P. J. Bell, M. J. Oreglia, S. Braibant, C. Pahl, G. Mikenberg, R. Vértesi, Shlomo Dado, T. R. Wyatt, Gordon H. Hanson, A. Krasznahorkay, D. Lanske, S. W. O'Neale, Junichi Kanzaki, Sachio Komamiya, Matthias Schröder, M. Gruwe, J. M. Roney, Francesco Spanò, Andris Skuja, K. J. Anderson, Dave Charlton, R. J. Batley, P. Igo-Kemenes, W. Menges, Otmar Biebel, R. K. Keeler, J. Lillich, Koichi Nagai, J. Goldberg, E. Tsur, C. M. Hawkes, P. Gagnon, B. W. Kennedy, Raimund Ströhmer, Tetsuro Mashimo, M. F. Turner-Watson, P. Jovanovic, W. Mohr, K. Ishii, H. Jeremie, A. D. Schaile, Gabriella Pasztor, Isabel Marian Trigger, K. W. Bell, Daniel Lellouch, P. Vannerem, Claudia Ciocca, P. M. Watkins, T. Saeki, J. C. Hill, C. F. Vollmer, M. Boutemeur, F. S. Merritt, N. Meyer, M. Kupper, Peter Krieger, T. Schörner-Sadenius, Zoltan Laszlo Trocsanyi, Takehiko Mori, K. Sachs, J. R. Carter, Tobias Kramer, C. P. Ward, H. Nanjo, Philip Bechtle, Steve Lloyd, Tara Shears, P. Renkel, R. M. Brown, Lorne Levinson, Norbert Wermes, Christoph Rembser, S. Söldner-Rembold, Gideon Alexander, M. A. Thomson, Beatrix Dienes, E. K. U. Gross, H. Voss, Jochen Schieck, S. Campana, O. Schaile, Paolo Capiluppi, T. Kawamoto, I. R. Bailey, M. Schumacher, G. Duckeck, J. A. McKenna, S. Orito, J. Dubbert, Erez Etzion, A. Mutter, Teresa Barillari, Stefan Kluth, Satoru Yamashita, A. Csilling, T. Kuhl, R. J. Barlow, R. K. Carnegie, Shlomit Tarem, E. A. De Wolf, Klaus Rabbertz, M. Giunta, D. E. Plane, N. K. Watson, P. Mättig, D. J. Miller, Shoji Asai, T. Behnke, L. Zivkovic, J. A. Wilson, J. Grunhaus, M. Dallavalle, H. Landsman, C. Ainsley, A. M. Rossi, Ehud Duchovni, Marco Cuffiani, A. Michelini, E. L. Barberio, T. Kobayashi, A. Ludwig, E. Torrence, A. Gupta, Paolo Giacomelli, D. R. Ward, Alain Bellerive, George Lafferty, M. Przybycień, G. Anagnostou, A. A. Carter, Satoshi Mihara, Achim Stahl, G. Giacomelli, M. Verzocchi, P. F. Åkesson, Giovanni Abbiendi, Frank Fiedler, A. De Roeck, M. Kobel, Frans Meijers, M. Ford, Pamela Ferrari, J. von Krogh, R. J. Hawkings, Kiyotomo Kawagoe, Robert McPherson, R. D. Heuer, Fabrizio Fabbri, A. Frey, M. Hamann, R. J. Sobie, Joost Vossebeld, Klaus Desch, A. Harel, Ikuo Ueda, D. M. Strom, J. Lu, P. S. Wells, A. T. Watson, M. Hauschild, T. R. Junk, Thorsten Wengler, Gabriele Benelli, Gregor Herten, J. E. Pilcher, B. C. Shen, G. Abbiendi, C. Ainsley, P. F. Åkesson, G. Alexander, G. Anagnostou, K. J. Anderson, S. Asai, D. Axen, I. Bailey, E. Barberio, T. Barillari, R. J. Barlow, R. J. Batley, P. Bechtle, T. Behnke, K. W. Bell, P. J. Bell, G. Bella, A. Bellerive, G. Benelli, S. Bethke, O. Biebel, O. Boeriu, P. Bock, M. Boutemeur, S. Braibant, R. M. Brown, H. J. Burckhart, S. Campana, P. Capiluppi, R. K. Carnegie, A. A. Carter, J. R. Carter, C. Y. Chang, D. G. Charlton, C. Ciocca, A. Csilling, M. Cuffiani, S. Dado, M. Dallavalle, A. Roeck, E. A. Wolf, K. Desch, B. Diene, J. Dubbert, E. Duchovni, G. Duckeck, I. P. Duerdoth, E. Etzion, F. Fabbri, P. Ferrari, F. Fiedler, I. Fleck, M. Ford, A. Frey, P. Gagnon, J. W. Gary, C. Geich-Gimbel, G. Giacomelli, P. Giacomelli, M. Giunta, J. Goldberg, E. Gro, J. Grunhau, M. Gruwé, A. Gupta, C. Hajdu, M. Hamann, G. G. Hanson, A. Harel, M. Hauschild, C. M. Hawke, R. Hawking, G. Herten, R. D. Heuer, J. C. Hill, D. Horváth, P. Igo-Kemene, K. Ishii, H. Jeremie, P. Jovanovic, T. R. Junk, J. Kanzaki, D. Karlen, K. Kawagoe, T. Kawamoto, R. K. Keeler, R. G. Kellogg, B. W. Kennedy, S. Kluth, T. Kobayashi, M. Kobel, S. Komamiya, T. Krämer, A. Krasznahorkay, P. Krieger, J. Krogh, T. Kuhl, M. Kupper, G. D. Lafferty, H. Landsman, D. Lanske, D. Lellouch, J. Lett, L. Levinson, J. Lillich, S. L. Lloyd, F. K. Loebinger, J. Lu, A. Ludwig, J. Ludwig, W. Mader, S. Marcellini, A. J. Martin, T. Mashimo, P. Mättig, J. McKenna, R. A. McPherson, F. Meijer, W. Menge, F. S. Merritt, H. Me, N. Meyer, A. Michelini, S. Mihara, G. Mikenberg, D. J. Miller, W. Mohr, T. Mori, A. Mutter, K. Nagai, I. Nakamura, H. Nanjo, H. A. Neal, S. W. O’Neale, A. Oh, M. J. Oreglia, S. Orito, C. Pahl, G. Pásztor, J. R. Pater, J. E. Pilcher, J. Pinfold, D. E. Plane, O. Pooth, M. Przybycień, A. Quadt, K. Rabbertz, C. Rembser, P. Renkel, J. M. Roney, A. M. Rossi, Y. Rozen, K. Runge, K. Sach, T. Saeki, E. K. G. Sarkisyan, A. D. Schaile, O. Schaile, P. Scharff-Hansen, J. Schieck, T. Schörner-Sadeniu, M. Schröder, M. Schumacher, R. Seuster, T. G. Shear, B. C. Shen, P. Sherwood, A. Skuja, A. M. Smith, R. Sobie, S. Söldner-Rembold, F. Spano, A. Stahl, D. Strom, R. Ströhmer, S. Tarem, M. Tasevsky, R. Teuscher, M. A. Thomson, E. Torrence, D. Toya, I. Trigger, Z. Trócsányi, E. Tsur, M. F. Turner-Watson, I. Ueda, B. Ujvári, C. F. Vollmer, P. Vannerem, R. Vértesi, M. Verzocchi, H. Vo, J. Vossebeld, C. P. Ward, D. R. Ward, P. M. Watkin, A. T. Watson, N. K. Watson, P. S. Well, T. Wengler, N. Werme, G. W. Wilson, J. A. Wilson, G. Wolf, T. R. Wyatt, S. Yamashita, D. Zer-Zion, and L. Zivkovic
Subjects: Quantum chromodynamics, Physics, Particle physics, Annihilation, OPAL, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, Nuclear Theory, LEP, 01 natural sciences, Asymptotic freedom, Nuclear physics, Renormalization, ALFA_S, 0103 physical sciences, High Energy Physics::Experiment, Gauge theory, 010306 general physics, Event (particle physics), Engineering (miscellaneous)
Abstract: Hadronic event shape distributions from e+e− annihilation measured by the OPAL experiment at centre-of-mass energies between 91 GeV and 209 GeV are used to determine the strong coupling α S. The results are based on QCD predictions complete to the next-to-next-to-leading order (NNLO), and on NNLO calculations matched to the resummed next-to-leading-log-approximation terms (NNLO + NLLA). The combined NNLO result from all variables and centre-of-mass energies is while the combined NNLO + NLLA result is The completeness of the NNLO and NNLO + NLLA results with respect to missing higher order contributions, studied by varying the renormalization scale, is improved compared to previous results based on NLO or NLO + NLLA predictions only. The observed energy dependence of α S agrees with the QCD prediction of asymptotic freedom and excludes the absence of running.
Published: 2011

10. Decay-mode independent searches for new scalar bosons with the OPAL detector at LEP

Author: Abbiendi, G., Ainsley, C., Akesson, P.F., Alexander, G., Allison, John, Amaral, P., Anagnostou, G., Anderson, K.J., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Bailey, I., Barberio, E., Barlow, R.J., Batley, R.J., Bechtle, P., Behnke, T., Bell, Kenneth Watson, Bell, P.J., Bella, G., Bellerive, A., Benelli, G., Bethke, S., Biebel, O., Bloodworth, I.J., Boeriu, O., Bock, P., Bonacorsi, D., Boutemeur, M., Braibant, S., Brigliadori, L., Brown, Robert M., Buesser, K., Burckhart, H.J., Cammin, J., Campana, S., Carnegie, R.K., Caron, B., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Cohen, I., Csilling, A., Cuffiani, M., Dado, S., Dallavalle, G.Marco, Dallison, S., De Roeck, A., De Wolf, E.A., Desch, K., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Elfgren, E., Etzion, E., Fabbri, F., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Furtjes, A., Gagnon, P., Gary, John William, Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Giunta, Marina, Goldberg, J., Gross, E., Grunhaus, J., Gruwe, M., Gunther, P.O., Gupta, A., Hajdu, C., Hamann, M., Hanson, G.G., Harder, K., Harel, A., Harin-Dirac, M., Hauschild, M., Hauschildt, J., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Hensel, C., Herten, G., Heuer, R.D., Hill, J.C., Hoffman, Kara Dion, Homer, R.J., Horvath, D., Howard, R., Huntemeyer, P., Igo-Kemenes, P., Ishii, K., Jeremie, H., Jovanovic, P., Junk, T.R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kim, D.H., Klein, K., Klier, A., Klute, M., Kluth, S., Kobayashi, T., Kobel, M., Kokott, T.P., Komamiya, S., Kormos, Laura L., Kowalewski, Robert V., Kramer, T., Kress, T., Krieger, P., von Krogh, J., Krop, D., Kupper, M., Kyberd, P., Lafferty, G.D., Landsman, H., Lanske, D., Layter, J.G., Leins, A., Lellouch, D., Letts, J., Levinson, L., Lillich, J., Lloyd, S.L., Loebinger, F.K., Lu, J., Ludwig, J., Macpherson, A., Mader, W., Marcellini, S., Marchant, T.E., Martin, A.J., Martin, J.P., Masetti, G., Mashimo, T., Mattig, Peter, McDonald, W.J., McKenna, J., McMahon, T.J., McPherson, R.A., Meijers, F., Mendez-Lorenzo, P., Menges, W., Merritt, F.S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Moed, S., Mohr, W., Mori, T., Mutter, A., Nagai, K., Nakamura, I., Neal, H.A., Nisius, R., O'Neale, S.W., Oh, A., Okpara, A., Oreglia, M.J., Orito, S., Pahl, C., Pasztor, G., Pater, J.R., Patrick, G.N., Pilcher, J.E., Pinfold, J., Plane, David E., Poli, B., Polok, J., Pooth, O., Przybycien, M., Quadt, A., Rabbertz, K., Rembser, C., Renkel, P., Rick, H., Roney, J.M., Rosati, S., Rozen, Y., Runge, K., Rust, D.R., Sachs, K., Saeki, T., Sahr, O., Sarkisyan, E.K.G., Schaile, A.D., Schaile, O., Scharoe-Hansen, P., Schieck, J., Schoerner-Sadenius, Thomas, Schroder, Matthias, Schumacher, M., Schwick, C., Scott, W.G., Seuster, R., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G., Skuja, A., Smith, A.M., Sobie, R., Soldner-Rembold, S., Spagnolo, S., Spano, F., Stahl, A., Stephens, K., Strom, David M., Strohmer, R., Tarem, S., Tasevsky, M., Taylor, R.J., Teuscher, R., Thomson, M.A., Torrence, E., Toya, D., Tran, P., Trefzger, T., Tricoli, A., Trigger, I., Trocsnyi, Z., Tsur, E., Turner-Watson, M.F., Ueda, I., Ujvari, B., Vachon, B., Vollmer, C.F., Vannerem, P., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wengler, T., Wermes, N., Wetterling, D., Wilson, G.W., Wilson, J.A., Wolf, G., Wyatt, T.R., Yamashita, S., Zacek, V., Zer-Zion, D., Zivkovic, Lidija, OPAL Collaboration, G., Abbiendi, C., Ainsley, P. F., Akesson, G., Alexander, J., Allison, P., Amaral, G., Anagnostou, K. J., Anderson, S., Arcelli, S., Asai, D., Axen, G., Azuelo, I., Bailey, E., Barberio, R. J., Barlow, R. J., Batley, P., Bechtle, T., Behnke, K. W., Bell, P. J., Bell, G., Bella, A., Bellerive, G., Benelli, S., Bethke, O., Biebel, I. J., Bloodworth, O., Boeriu, P., Bock, D., Bonacorsi, M., Boutemeur, S., Braibant, L., Brigliadori, R. M., Brown, K., Buesser, H. J., Burckhart, J., Cammin, S., Campana, R. K., Carnegie, B., Caron, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, I., Cohen, A., Csilling, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, A., De Roeck, E. A., De, K., Desch, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, E., Elfgren, E., Etzion, F., Fabbri, L., Feld, P., Ferrari, F., Fiedler, I., Fleck, M., Ford, A., Frey, A., Furtje, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, M., Giunta, J., Goldberg, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, A., Gupta, C., Hajdu, M., Hamann, G. G., Hanson, K., Harder, A., Harel, M., Harin Dirac, M., Hauschild, J., Hauschildt, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, J. C., Hill, K., Hoffman, R. J., Homer, D., Horvath, R., Howard, P., Huntemeyer, P., Igo Kemene, K., Ishii, H., Jeremie, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, K., Klein, A., Klier, M., Klute, S., Kluth, T., Kobayashi, M., Kobel, T. P., Kokott, S., Komamiya, L., Kormo, R. V., Kowalewski, T., Kramer, T., Kre, P., Krieger, J., von Krogh, D., Krop, M., Kupper, P., Kyberd, G. D., Lafferty, H., Landsman, D., Lanske, J. G., Layter, A., Lein, D., Lellouch, J., Lett, L., Levinson, J., Lillich, S. L., Lloyd, F. K., Loebinger, J., Lu, J., Ludwig, A., Macpherson, W., Mader, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Masetti, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenz, W., Menge, F. S., Merritt, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, S., Moed, W., Mohr, T., Mori, A., Mutter, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, A., Oh, A., Okpara, M. J., Oreglia, S., Orito, C., Pahl, G., Pasztor, J. R., Pater, G. N., Patrick, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, O., Pooth, M., Przybycien, A., Quadt, K., Rabbertz, C., Rembser, P., Renkel, H., Rick, J. M., Roney, S., Rosati, Y., Rozen, K., Runge, D. R., Rust, K., Sach, T., Saeki, O., Sahr, E. K., G., A. D., Schaile, O., Schaile, P., Scharff Hansen, J., Schieck, T., Schoerner Sadeniu, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, G., Siroli, A., Skuja, A. M., Smith, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, F., Spano, A., Stahl, K., Stephen, D., Strom, R., Strohmer, S., Tarem, M., Tasevsky, R. J., Taylor, R., Teuscher, M. A., Thomson, E., Torrence, D., Toya, P., Tran, T., Trefzger, A., Tricoli, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, B., Ujvari, B., Vachon, C. F., Vollmer, P., Vannerem, M., Verzocchi, H., Vo, J., Vossebeld, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, G. W., Wilson, J. A., Wilson, G., Wolf, T. R., Wyatt, S., Yamashita, V., Zacek, D., Zer Zion, and L., Zivkovic
Subjects: Physics, Particle physics, Photon, Physics and Astronomy (miscellaneous), Scalar (mathematics), Hadron, FOS: Physical sciences, Scalar boson, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Recoil, Mass spectrum, High Energy Physics::Experiment, Engineering (miscellaneous), Particle Physics - Experiment, Lepton, Boson
Abstract: This paper describes topological searches for neutral scalar bosons S0 produced in association with a Z0 boson via the Bjorken process e+e- -> S0Z0 at centre-of-mass energies of 91 GeV and 183-209 GeV. These searches are based on studies of the recoil mass spectrum of Z0 -> e+e- and mu+mu- events on a search for S0Z0 with Z0 -> nunu bar and S0 -> e+e- or photons. They cover the decays of the S0 into an arbitrary combination of hadrons, leptons, photons and invisible particles as well as the possibility that it might be stable. No indication for a signal is found in the data and upper limits on the cross section of the Bjorken process are calculated. Cross-section limits are given in terms of a scale factor k with respect to the Standrad Model cross section for the Higgs-strahlung process e+e- -> H0smZ0. These results can be interpreted in general scenarios independently of the decay modes of the S0. The examples considered here are the production of a single new scalar particle with a decay width smaller than the detector mass resolution, and for the first time, two scenarios with continuous mass distributions, due to a single very broad state or several states close in mass., 36 pages, 14 figures
Published: 2003

11. Search for a low mass CP-odd Higgs boson in e+e- collisions with the OPAL detector at LEP2

Author: Abbiendi, G., Ainsley, C., Akesson, P.F., Alexander, G., Allison, John, Amaral, P., Anagnostou, G., Anderson, K.J., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Bailey, I., Barberio, E., Barlow, R.J., Batley, R.J., Bechtle, P., Behnke, T., Bell, Kenneth Watson, Bell, P.J., Bella, G., Bellerive, A., Benelli, G., Bethke, S., Biebel, O., Bloodworth, I.J., Boeriu, O., Bock, P., Bonacorsi, D., Boutemeur, M., Braibant, S., Brigliadori, L., Brown, Robert M., Buesser, K., Burckhart, H.J., Campana, S., Carnegie, R.K., Caron, B., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Csilling, A., Cuffiani, M., Dado, S., Dallavalle, G.Marco, Dallison, S., De Roeck, A., De Wolf, E.A., Desch, K., Dienes, B., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Elfgren, E., Etzion, E., Fabbri, F., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Furtjes, A., Gagnon, P., Gary, John William, Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Giunta, Marina, Goldberg, J., Gross, E., Grunhaus, J., Gruwe, M., Gunther, P.O., Gupta, A., Hajdu, C., Hamann, M., Hanson, G.G., Harder, K., Harel, A., Harin-Dirac, M., Hauschild, M., Hauschildt, J., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Hensel, C., Herten, G., Heuer, R.D., Hill, J.C., Hoffman, Kara Dion, Homer, R.J., Horvath, D., Howard, R., Huntemeyer, P., Igo-Kemenes, P., Ishii, K., Jeremie, H., Jovanovic, P., Junk, T.R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kim, D.H., Klein, K., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Komamiya, S., Kormos, Laura L., Kowalewski, Robert V., Kramer, T., Kress, T., Krieger, P., von Krogh, J., Krop, D., Kruger, K., Kupper, M., Lafferty, G.D., Landsman, H., Lanske, D., Layter, J.G., Leins, A., Lellouch, D., Letts, J., Levinson, L., Lillich, J., Lloyd, S.L., Loebinger, F.K., Lu, J., Ludwig, J., Macpherson, A., Mader, W., Marcellini, S., Marchant, T.E., Martin, A.J., Martin, J.P., Masetti, G., Mashimo, T., Mattig, Peter, McDonald, W.J., McKenna, J., McMahon, T.J., McPherson, R.A., Meijers, F., Mendez-Lorenzo, P., Menges, W., Merritt, F.S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Moed, S., Mohr, W., Mori, T., Mutter, A., Nagai, K., Nakamura, I., Neal, H.A., Nisius, R., O'Neale, S.W., Oh, A., Okpara, A., Oreglia, M.J., Orito, S., Pahl, C., Pasztor, G., Pater, J.R., Patrick, G.N., Pilcher, J.E., Pinfold, J., Plane, David E., Poli, B., Polok, J., Pooth, O., Przybycien, M., Quadt, A., Rabbertz, K., Rembser, C., Renkel, P., Rick, H., Roney, J.M., Rosati, S., Rozen, Y., Runge, K., Sachs, K., Saeki, T., Sahr, O., Sarkisyan, E.K.G., Schaile, A.D., Schaile, O., Scharff-Hansen, P., Schieck, J., Schoerner-Sadenius, Thomas, Schroder, Matthias, Schumacher, M., Schwick, C., Scott, W.G., Seuster, R., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G., Skuja, A., Smith, A.M., Sobie, R., Soldner-Rembold, S., Spagnolo, S., Spano, F., Stahl, A., Stephens, K., Strom, David M., Strohmer, R., Tarem, S., Tasevsky, M., Taylor, R.J., Teuscher, R., Thomson, M.A., Torrence, E., Toya, D., Tran, P., Trefzger, T., Tricoli, A., Trigger, I., Trocsanyi, Z., Tsur, E., Turner-Watson, M.F., Ueda, I., Ujvari, B., Vachon, B., Vollmer, C.F., Vannerem, P., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wengler, T., Wermes, N., Wetterling, D., Wilson, G.W., Wilson, J.A., Wolf, G., Wyatt, T.R., Yamashita, S., Zer-Zion, D., Zivkovic, Lidija, OPAL Collaboration, G., Abbiendi, C., Ainsley, P. F., Akesson, G., Alexander, J., Allison, P., Amaral, G., Anagnostou, K. J., Anderson, S., Arcelli, S., Asai, D., Axen, G., Azuelo, I., Bailey, E., Barberio, R. J., Barlow, R. J., Batley, P., Bechtle, T., Behnke, K. W., Bell, P. J., Bell, G., Bella, A., Bellerive, G., Benelli, S., Bethke, O., Biebel, I. J., Bloodworth, O., Boeriu, P., Bock, D., Bonacorsi, M., Boutemeur, S., Braibant, L., Brigliadori, R. M., Brown, K., Buesser, H. J., Burckhart, S., Campana, R. K., Carnegie, B., Caron, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, A., Csilling, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, A., De Roeck, E. A., De, K., Desch, B., Diene, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, E., Elfgren, E., Etzion, F., Fabbri, L., Feld, P., Ferrari, F., Fiedler, I., Fleck, M., Ford, A., Frey, A., Furtje, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, M., Giunta, J., Goldberg, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, A., Gupta, C., Hajdu, M., Hamann, G. G., Hanson, K., Harder, A., Harel, M., Harin Dirac, M., Hauschild, J., Hauschildt, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, J. C., Hill, K., Hoffman, R. J., Homer, D., Horvath, R., Howard, P., Huntemeyer, P., Igo Kemene, K., Ishii, H., Jeremie, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, K., Klein, A., Klier, S., Kluth, T., Kobayashi, M., Kobel, S., Komamiya, L., Kormo, R. V., Kowalewski, T., Kramer, T., Kre, P., Krieger, J., von Krogh, K., Kruger, M., Kupper, G. D., Lafferty, H., Landsman, D., Lanske, J. G., Layter, A., Lein, D., Lellouch, J., Lett, L., Levinson, J., Lillich, S. L., Lloyd, F. K., Loebinger, J., Lu, J., Ludwig, A., Macpherson, W., Mader, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Masetti, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenz, W., Menge, F. S., Merritt, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, S., Moed, W., Mohr, T., Mori, A., Mutter, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, A., Oh, A., Okpara, M. J., Oreglia, S., Orito, C., Pahl, G., Pasztor, J. R., Pater, G. N., Patrick, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, O., Pooth, M., Przybycien, A., Quadt, K., Rabbertz, C., Rembser, P., Renkel, H., Rick, J. M., Roney, S., Rosati, Y., Rozen, K., Runge, K., Sach, T., Saeki, O., Sahr, E. K., G., A. D., Schaile, O., Schaile, P., Scharff Hansen, J., Schieck, T., Schorner Sadeniu, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, G., Siroli, A., Skuja, A. M., Smith, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, F., Spano, A., Stahl, K., Stephen, D., Strom, R., Strohmer, S., Tarem, M., Tasevsky, R. J., Taylor, R., Teuscher, M. A., Thomson, E., Torrence, D., Toya, P., Tran, T., Trefzger, A., Tricoli, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, B., Ujvari, B., Vachon, C. F., Vollmer, P., Vannerem, M., Verzocchi, H., Vo, J., Vossebeld, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, G. W., Wilson, J. A., Wilson, G., Wolf, T. R., Wyatt, S., Yamashita, D., Zer Zion, and L., Zivkovic
Subjects: Physics, Particle physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Scalar (mathematics), Detector, High Energy Physics::Phenomenology, FOS: Physical sciences, 01 natural sciences, 3. Good health, Standard Model, High Energy Physics - Experiment, Pseudoscalar, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Higgs boson, High Energy Physics::Experiment, 010306 general physics, Low Mass, Engineering (miscellaneous), Particle Physics - Experiment
Abstract: We have analysed the data collected by OPAL at centre-of-mass energies between 189 and 209 GeV searching for Higgs boson candidates from the process e+e- -> h0Z0 followed by the decay of h0 -> A0A0 where A0 is the CP-odd Higgs boson. The search is done in the region where the A0 mass, mA, is below the production threshold for bbbar, and the CP-even Higgs boson mass mh is within the range 45-86 GeV/c^2. In this kinematic range, the decay of h0 -> A0A0 may be dominant and previous Higgs boson searches have very small sensitivities. This search can be interpreted within any model that predicts the existence of at least one scalar and one pseudoscalar Higgs boson. No excess of events is observed above the expected Standard Model backgrounds. Model-independent limits on the cross-section for the process e+e- -> h0Z0 are derived assuming 100% decays of the h0 into A0A0 and 100% decays of the A0A0 into each of the following final states: ccbarccbar, gggg, tau+tau-tau+tau-, ccbargg ggtau+tau- and ccbartau+tau-. The results are also interpreted in the CP-conserving no-mixing MSSM scenario, where the region 45, 26 pages, 8 figures, Submitted to Eur. Phys. J.C
Published: 2002

12. Measurement of the Mass of the W Boson in $e^+ e^-$ collisions using the Fully Leptonic Channel

Author: Abbiendi, G., Ainsley, C., Akesson, P.F., Alexander, G., Allison, John, Anagnostou, G., Anderson, K.J., Asai, S., Axen, D., Azuelos, G., Bailey, I., Barberio, E., Barlow, R.J., Batley, R.J., Bechtle, P., Behnke, T., Bell, Kenneth Watson, Bell, P.J., Bella, G., Bellerive, A., Benelli, G., Bethke, S., Biebel, O., Bloodworth, I.J., Boeriu, O., Bock, P., Bonacorsi, D., Boutemeur, M., Braibant, S., Brigliadori, L., Brown, Robert M., Buesser, K., Burckhart, H.J., Cammin, J., Campana, S., Carnegie, R.K., Caron, B., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Cohen, I., Csilling, A., Cuffiani, M., Dado, S., Dallavalle, G.Marco, Dallison, S., De Roeck, A., De Wolf, E.A., Desch, K., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Etzion, E., Fabbri, F., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Furtjes, A., Gagnon, P., Gary, John William, Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Giunta, Marina, Goldberg, J., Gross, E., Grunhaus, J., Gruwe, M., Gunther, P.O., Gupta, A., Hajdu, C., Hamann, M., Hanson, G.G., Harder, K., Harel, A., Harin-Dirac, M., Hauschild, M., Hauschildt, J., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Hensel, C., Herten, G., Heuer, R.D., Hill, J.C., Hoffman, Kara Dion, Homer, R.J., Horvath, D., Howard, R., Huntemeyer, P., Igo-Kemenes, P., Ishii, K., Jeremie, H., Jones, C.R., Jovanovic, P., Junk, T.R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kim, D.H., Klein, K., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Kokott, T.P., Komamiya, S., Kormos, Laura L., Kowalewski, Robert V., Kramer, T., Kress, T., Krieger, P., von Krogh, J., Krop, D., Kuhl, T., Kupper, M., Kyberd, P., Lafferty, G.D., Landsman, H., Lanske, D., Layter, J.G., Leins, A., Lellouch, D., Letts, J., Levinson, L., Lillich, J., Littlewood, C., Lloyd, S.L., Loebinger, F.K., Lu, J., Ludwig, J., Macchiolo, A., Macpherson, A., Mader, W., Marcellini, S., Marchant, T.E., Martin, A.J., Martin, J.P., Masetti, G., Mashimo, T., Mattig, Peter, McDonald, W.J., McKenna, J., McMahon, T.J., McPherson, R.A., Meijers, F., Mendez-Lorenzo, P., Menges, W., Merritt, F.S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Moed, S., Mohr, W., Mori, T., Mutter, A., Nagai, K., Nakamura, I., Neal, H.A., Nisius, R., O'Neale, S.W., Oh, A., Okpara, A., Oreglia, M.J., Orito, S., Pahl, C., Pasztor, G., Pater, J.R., Patrick, G.N., Pilcher, J.E., Pinfold, J., Plane, David E., Poli, B., Polok, J., Pooth, O., Quadt, A., Rabbertz, K., Rembser, C., Renkel, P., Rick, H., Roney, J.M., Rosati, S., Rozen, Y., Runge, K., Rust, D.R., Sachs, K., Saeki, T., Sahr, O., Sarkisyan, E.K.G., Schaile, A.D., Schaile, O., Scharff-Hansen, P., Schroder, Matthias, Schumacher, M., Schwick, C., Scott, W.G., Seuster, R., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G., Skuja, A., Smith, A.M., Sobie, R., Soldner-Rembold, S., Spagnolo, S., Spano, F., Stahl, A., Stephens, K., Strom, David M., Strohmer, R., Tarem, S., Tasevsky, M., Taylor, R.J., Teuscher, R., Thomson, M.A., Torrence, E., Toya, D., Tran, P., Trefzger, T., Tricoli, A., Trigger, I., Trocsanyi, Z., Tsur, E., Turner-Watson, M.F., Ueda, I., Ujvari, B., Vachon, B., Vollmer, C.F., Vannerem, P., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wengler, T., Wermes, N., Wetterling, D., Wilson, G.W., Wilson, J.A., Wyatt, T.R., Yamashita, S., Zacek, V., Zer-Zion, D., OPAL Collaboration, G., Abbiendi, C., Ainsley, P. F., Akesson, G., Alexander, J., Allison, G., Anagnostou, K. J., Anderson, S., Asai, D., Axen, G., Azuelo, I., Bailey, E., Barberio, R. J., Barlow, R. J., Batley, P., Bechtle, T., Behnke, K. W., Bell, P. J., Bell, G., Bella, A., Bellerive, G., Benelli, S., Bethke, O., Biebel, I. J., Bloodworth, O., Boeriu, P., Bock, D., Bonacorsi, M., Boutemeur, S., Braibant, L., Brigliadori, R. M., Brown, K., Buesser, H. J., Burckhart, J., Cammin, S., Campana, R. K., Carnegie, B., Caron, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, I., Cohen, A., Csilling, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, A., De Roeck, E. A., De, K., Desch, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, E., Etzion, F., Fabbri, L., Feld, P., Ferrari, F., Fiedler, I., Fleck, M., Ford, A., Frey, A., Furtje, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, M., Giunta, J., Goldberg, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, A., Gupta, C., Hajdu, M., Hamann, G. G., Hanson, K., Harder, A., Harel, M., Harin Dirac, M., Hauschild, J., Hauschildt, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, J. C., Hill, K., Hoffman, R. J., Homer, D., Horvath, R., Howard, P., Huntemeyer, P., Igo Kemene, K., Ishii, H., Jeremie, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, K., Klein, A., Klier, S., Kluth, T., Kobayashi, M., Kobel, T. P., Kokott, S., Komamiya, L., Kormo, R. V., Kowalewskil, T., Kramer, T., Kre, P., Krieger, J., von Krogh, D., Krop, T., Kuhl, M., Kupper, P., Kyberd, G. D., Lafferty, H., Landsman, D., Lanske, J. G., Layter, A., Lein, D., Lellouch, J., Lett, L., Levinson, J., Lillich, C., Littlewood, S. L., Lloyd, F. K., Loebinger, J., Lu, J., Ludwig, A., Macchiolo, A., Macpherson, W., Mader, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Masetti, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcphersonl, F., Meijer, P., Mendez Lorenzo, W., Menge, F. S., Merritt, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, S., Moed, W., Mohr, T., Mori, A., Mutter, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, A., Oh, A., Okpara, M. J., Oreglia, S., Orito, C., Pahl, G., Pasztor, J. R., Pater, G. N., Patrick, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, O., Pooth, A., Quadt, K., Rabbertz, C., Rembser, P., Renkel, H., Rick, J. M., Roney, S., Rosati, Y., Rozen, K., Runge, D. R., Rust, K., Sach, T., Saeki, O., Sahrl, E. K., G., A. D., Schaile, O., Schaile, P., Scharff Hansen, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, G., Siroli, A., Skuja, A. M., Smith, R., Sobie, S., Soldner Remboldd, Spagnolo, Stefania Antonia, F., Spano, A., Stahl, K., Stephen, D., Strom, R., Strohmer, S., Tarem, M., Tasevsky, R. J., Taylor, R., Teuscher, M. A., Thomson, E., Torrence, D., Toya, P., Tran, T., Trefzger, A., Tricoli, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, B., Ujvari, B., Vachon, C. F., Vollmer, P., Vannerem, M., Verzocchi, H., Vo, J., Vossebeld, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, G. W., Wilson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, and D., Zer Zion
Subjects: Systematic error, Physics, Particle physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Monte Carlo method, Detector, FOS: Physical sciences, Kinematics, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Range (statistics), High Energy Physics::Experiment, 010306 general physics, Engineering (miscellaneous), Energy (signal processing), Particle Physics - Experiment, Communication channel, Lepton
Abstract: A novel method of determining the mass of the W boson in the W+W- -> lnu lnu channel is presented and applied to 667pb^-1 of data recorded at the center-of- mass energies in the range 183-207 GeV with the OPAL detector at LEP. The Measured energies of charged leptons and the results of a new procedure based on an approximate kinematic reconstruction of the events are combined to give: Mw=80.41+-0.41+-0.13 GeV, when the first error is statistical and the second is systematic. The systematic error is dominated by the uncertainty on the lepton energy, which is calibrated using data, and the parameterization of the variables used in the fitting, which is obtained using Monte Carlo events. Both of these are limited by statistics., 23 pages, 8 figures, Submitted to Euro. Phys. Journal C
Published: 2002

13. Measurement of Z/gamma* production in compton scattering of quasi-real photons

Author: Abbiendi, G., Ainsley, C., Akesson, P.F., Alexander, G., Allison, John, Anagnostou, G., Anderson, K.J., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Bailey, I., Barberio, E., Barlow, Roger J., Batley, R.J., Behnke, T., Bell, Kenneth Watson, Bell, P.J., Bella, G., Bellerive, A., Bethke, S., Biebel, O., Bloodworth, I.J., Boeriu, O., Bock, P., Bohme, J., Bonacorsi, D., Boutemeur, M., Braibant, S., Brigliadori, L., Brown, Robert M., Burckhart, H.J., Cammin, J., Carnegie, R.K., Caron, B., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Clarke, P.E.L., Clay, E., Cohen, I., Couchman, J., Csilling, A., Cuffiani, M., Dado, S., Dallavalle, G.Marco, Dallison, S., De Roeck, A., De Wolf, E.A., Dervan, P., Desch, K., Dienes, B., Dixit, M.S., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Etzion, E., Fabbri, F., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Glenzinski, D., Goldberg, J., Graham, K., Gross, E., Grunhaus, J., Gruwe, M., Gunther, P.O., Gupta, A., Hajdu, C., Hamann, M., Hanson, G.G., Harder, K., Harel, A., Harin-Dirac, M., Hauschild, M., Hauschildt, J., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Hensel, C., Herten, G., Heuer, R.D., Hill, J.C., Hoffman, Kara Dion, Homer, R.J., Horvath, D., Hossain, K.R., Howard, R., Huntemeyer, P., Igo-Kemenes, P., Ishii, K., Jawahery, A., Jeremie, H., Jones, C.R., Jovanovic, P., Junk, T.R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kim, D.H., Klein, K., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Kokott, T.P., Komamiya, S., Kowalewski, Robert V., Kramer, T., Kress, T., Krieger, P., von Krogh, J., Krop, D., Kuhl, T., Kupper, M., Kyberd, P., Lafferty, G.D., Landsman, H., Lanske, D., Lawson, I., Layter, J.G., Leins, A., Lellouch, D., Letts, J., Levinson, L., Lillich, J., Littlewood, C., Lloyd, S.L., Loebinger, F.K., Long, G.D., Losty, M.J., Lu, J., Ludwig, J., Macchiolo, A., Macpherson, A., Mader, W., Marcellini, S., Marchant, T.E., Martin, A.J., Martin, J.P., Martinez, G., Masetti, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., McMahon, T.J., McPherson, R.A., Meijers, F., Mendez-Lorenzo, P., Menges, W., Merritt, F.S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Moed, S., Mohr, W., Mori, T., Mutter, A., Nagai, K., Nakamura, I., Neal, H.A., Nisius, R., O'Neale, S.W., Oh, A., Okpara, A., Oreglia, M.J., Orito, S., Pahl, C., Pasztor, G., Pater, J.R., Patrick, G.N., Pilcher, J.E., Pinfold, J., Plane, David E., Poli, B., Polok, J., Pooth, O., Quadt, A., Rabbertz, K., Rembser, C., Renkel, P., Rick, H., Rodning, N., Roney, J.M., Rosati, S., Roscoe, K., Rozen, Y., Ruken, H., Runge, K., Rust, D.R., Sachs, K., Saeki, T., Sahr, O., Sarkisian, E.K.G., Sbarra, C., Schaile, A.D., Schaile, O., Scharff-Hansen, P., Schroder, Matthias, Schumacher, M., Schwick, C., Scott, W.G., Seuster, R., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Spagnolo, S., Spielmann, P., Spano, F., Sproston, M., Stahl, A., Stephens, K., Strom, David M., Strohmer, R., Stumpf, L., Surrow, B., Tarem, S., Tasevsky, M., Taylor, R.J., Teuscher, R., Thomas, J., Thomson, M.A., Torrence, E., Toya, D., Trefzger, T., Tricoli, A., Trigger, I., Trocsanyi, Z., Tsur, E., Turner-Watson, M.F., Ueda, I., Ujvari, B., Vachon, B., Vollmer, C.F., Vannerem, P., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wengler, T., Wermes, N., Wetterling, D., Wilson, G.W., Wilson, J.A., Wyatt, T.R., Yamashita, S., Zacek, V., Zer-Zion, D., G., Abbiendi, C., Ainsley, P. F., Akesson, G., Alexander, J., Allison, G., Anagnostou, K. J., Anderson, S., Arcelli, S., Asai, D., Axen, G., Azuelo, I., Bailey, E., Barberio, R. J., Barlow, R. J., Batley, T., Behnke, K. W., Bell, P. J., Bell, G., Bella, A., Bellerive, S., Bethke, O., Biebel, I. J., Bloodworth, O., Boeriu, P., Bock, J., Bohme, D., Bonacorsi, M., Boutemeur, S., Braibant, L., Brigliadori, R. M., Brown, H. J., Burckhart, J., Cammin, R. K., Carnegie, B., Caron, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, P. E., L., E., Clay, I., Cohen, J., Couchman, A., Csilling, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, A., De Roeck, E. A., De, P., Dervan, K., Desch, B., Diene, M. S., Dixit, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, E., Etzion, F., Fabbri, L., Feld, P., Ferrari, F., Fiedler, I., Fleck, M., Ford, A., Frey, A., Furtje, D. I., Futyan, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, D., Glenzinski, J., Goldberg, K., Graham, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, A., Gupta, C., Hajdu, M., Hamann, G. G., Hanson, K., Harder, A., Harel, M., Harin Dirac, M., Hauschild, J., Hauschildt, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, J. C., Hill, K., Hoffman, R. J., Homer, D., Horvath, K. R., Hossain, R., Howard, P., Huntemeyer, P., Igo Kemene, K., Ishii, A., Jawahery, H., Jeremie, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, K., Klein, A., Klier, S., Kluth, T., Kobayashi, M., Kobel, T. P., Kokott, S., Komamiya, R. V., Kowalewski, T., Kramer, T., Kre, P., Krieger, J., von Krogh, D., Krop, T., Kuhl, M., Kupper, P., Kyberd, G. D., Lafferty, H., Landsman, D., Lanske, I., Lawson, J. G., Layter, A., Lein, D., Lellouch, J., Lett, L., Levinson, J., Lillich, C., Littlewood, S. L., Lloyd, F. K., Loebinger, G. D., Long, M. J., Losty, J., Lu, J., Ludwig, A., Macchiolo, A., Macpherson, W., Mader, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Martinez, G., Masetti, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, W., Menge, F. S., Merritt, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, S., Moed, W., Mohr, T., Mori, A., Mutter, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, A., Oh, A., Okpara, M. J., Oreglia, S., Orito, C., Pahl, G., Pasztor, J. R., Pater, G. N., Patrick, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, O., Pooth, A., Quadt, K., Rabbertz, C., Rembser, P., Renkel, H., Rick, N., Rodning, J. M., Roney, S., Rosati, K., Roscoe, Y., Rozen, H., Ruken, K., Runge, D. R., Rust, K., Sach, T., Saeki, O., Sahr, E. K., G., C., Sbarra, A. D., Schaile, O., Schaile, P., Scharff Hansen, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, A., Skuja, A. M., Smith, G. A., Snow, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, P., Spielmann, F., Spano, M., Sproston, A., Stahl, K., Stephen, D., Strom, R., Strohmer, L., Stumpf, B., Surrow, S., Tarem, M., Tasevsky, R. J., Taylor, R., Teuscher, J., Thoma, M. A., Thomson, E., Torrence, D., Toya, T., Trefzger, A., Tricoli, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, B., Ujvari, B., Vachon, C. F., Vollmer, P., Vannerem, M., Verzocchi, H., Vo, J., Vossebeld, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, G. W., Wilson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, and D., Zer Zion
Subjects: Physics, Particle physics, Photon, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Branching fraction, Astrophysics::High Energy Astrophysical Phenomena, Hadron, Monte Carlo method, Compton scattering, FOS: Physical sciences, Lorentz covariance, Mandelstam variables, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010303 astronomy & astrophysics, Engineering (miscellaneous), Particle Physics - Experiment, Ansatz
Abstract: The process e+ e- -> e+ e- Z/gamma* is studied with the OPAL detector at LEP at a centre of mass energy of sqrt(s) = 189 GeV. The cross-section times the branching ratio of the Z/gamma* decaying into hadrons is measured within Lorentz invariant kinematic limits to be (1.2 +/- 0.3 +/- 0.1) pb for invariant masses of the hadronic system between 5 GeV and 60 GeV and (0.7 +/- 0.2 +/- 0.1) pb for hadronic masses above 60 GeV. The differential cross-sections of the Mandelstam variables s-hat, t-hat, and u-hat are measured and compared with the predictions from the Monte Carlo generators grc4f and PYTHIA. From this, based on a factorisation ansatz, the total and differential cross-sections for the subprocess e gamma -> e Z/gamma* are derived., 34 pages, 12 figures, Submitted to Eur. Phys. J. C
Published: 2002

14. Search for Scalar Top and Scalar Bottom Quarks at LEP

Author: G. Abbiendi, C. Ainsley, PF Akesson, G. Alexander, J. Allison, P. Amaral, G. Anagnostou, KJ Anderson, S. Arcelli, S. Asai, D. Axen, G. Azuelos, I. Bailey, E. Barberio, RJ Barlow, RJ Batley, P. Bechtle, T. Behnke, KW Bell, PJ Bell, G. Bella, A. Bellerive, G. Benelli, S. Bethke, O. Biebel, IJ Bloodworth, O. Boeriu, P. Bock, D. Bonacorsi, M. Boutemeur, S. Braibant, L. Brigliadori, RM Brown, K. Buesser, H. Burckhart, S. Campana, RK Carnegie, B. Caron, AA Carter, JR Carter, CY Chang, DG Charlton, A. Csilling, M. Cuffiani, S. Dado, GM Dallavalle, S. Dallison, A. De Roeck, EA De Wolf, K. Desch, B. Dienes, M. Donkers, J. Dubbert, E. Duchovni, G. Duckeck, IP Duerdoth, E. Elfgren, E. Etzion, F. Fabbri, L. Feld, P. Ferrari, F. Fiedler, I. Fleck, M. Ford, A. Frey, A. Furtjes, P. Gagnon, JW Gary, G. Gaycken, C. Geich Gimbel, G. Giacomelli, P. Giacomelli, M. Giunta, J. Goldberg, E. Gross, J. Grunhaus, M. Gruwe, PO Gunther, A. Gupta, C. Hajdu, M. Hamann, GG Hanson, K. Harder, A. Harel, M. Harin Dirac, M. Hauschild, J. Hauschildt, CM Hawkes, R. Hawkings, RJ Hemingway, C. Hensel, G. Herten, RD Heuer, JC Hill, K. Hoffman, RJ Homer, D. Horvath, R. Howard, P. Huntemeyer, P. Igo Kemenes, K. Ishii, H. Jeremie, P. Jovanovic, TR Junk, N. Kanaya, J. Kanzaki, G. Karapetian, D. Karlen, V. Kartvelishvili, K. Kawagoe, T. Kawamoto, RK Keeler, RG Kellog, BW Kennedy, DH Kim, K. Klein, A. Klier, S. Kluth, T. Kobayashi, M. Kobel, S. Komamiya, L. Kormos, RV Kowalewski, T. Kramer, T. Kress, P. Krieger, J. von Krogh, D. Krop, K. Kruger, M. Kupper, GD Lafferty, H. Landsman, D. Lanske, JG Layter, A. Leins, D. Lellouch, J. Letts, L. Levinson, J. Lillich, SL Lloyd, FK Loebinger, J. Lu, J. Ludwig, A. Macpherson, W. Mader, S. Marcellini, TE Marchant, AJ Martin, JP Martin, G. Masetti, T. Mashimo, P. Mattig, WJ McDonald, J. McKenna, TJ McMahon, RA McPherson, F. Meijers, P. Mendez Lorenzo, W. Menges, FS Merritt, H. Mes, A. Michelini, S. Mihara, G. Mickenberg, DJ Miller, S. Moed, W. Mohr, T. Mori, A. Mutter, K. Nagai, I. Nakamura, HA Neal, R. Nisius, SW O'Neale, A. Oh, A. Okpara, MJ Oreglia, S. Orito, C. Pahl, G. Pasztor, JR Pater, GN Patrick, JE Pilcher, J. Pinfold, DE Plane, B. Poli, J. Polok, O. Pooth, M. Przybycien, A. Quadt, K. Rabbertz, C. Rembser, P. Renkel, H. Rick, JM Roney, S. Rosati, Y. Rozen, K. Runge, K. Sachs, T. Saeki, O. Sahr, EKG Sarkisyan, AD Schaile, O. Schaile, P. Scharff Hansen, J. Schieck, T. Schoerner Sadenius, M. Schroder, M. Schumacher, C. Schwick, WG Scott, R. Seuster, TG Shears, BC Shen, C. Shepherd, P. Sherwood, G. Siroli, A. Skuja, AM Smith, R. Sobie, S. Soldner Rembold, F. Spano, A. Stahl, K. Stephens, D. Strom, R. Strohmer, S. Tarem, M. Tasevsky, RJ Taylor, R. Teuscher, MA Thomson, E. Torrence, D. Toya, P. Tran, T. Trefzger, A. Tricoli, I. Trigger, Z. Trocsanyi, E. Tsur, MF Turner Watson, I. Ueda, B. Ujvari, B. Vachon, CF Vollmer, P. Vannerem, M. Verzocchi, H. Voss, J. Vossebeld, D. Waller, CP Ward, DR Ward, PM Watkins, AT Watson, NK Watson, PS Wells, T. Wengler, N. Wermes, D. Wetterling, GW Wilson, JA Wilson, G. Wolf, TR Wyatt, S. Yamashita, D. Zer Zion, L. Zivkovic, OPAL Collaboration, SPAGNOLO, Stefania Antonia, OPAL Collaboration, G., Abbiendi, C., Ainsley, Pf, Akesson, G., Alexander, J., Allison, P., Amaral, G., Anagnostou, Kj, Anderson, S., Arcelli, S., Asai, D., Axen, G., Azuelo, I., Bailey, E., Barberio, Rj, Barlow, Rj, Batley, P., Bechtle, T., Behnke, Kw, Bell, Pj, Bell, G., Bella, A., Bellerive, G., Benelli, S., Bethke, O., Biebel, Ij, Bloodworth, O., Boeriu, P., Bock, D., Bonacorsi, M., Boutemeur, S., Braibant, L., Brigliadori, Rm, Brown, K., Buesser, H., Burckhart, S., Campana, Rk, Carnegie, B., Caron, Aa, Carter, Jr, Carter, Cy, Chang, Dg, Charlton, A., Csilling, M., Cuffiani, S., Dado, Gm, Dallavalle, S., Dallison, A., De Roeck, EA De, Wolf, K., Desch, B., Diene, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, Ip, Duerdoth, E., Elfgren, E., Etzion, F., Fabbri, L., Feld, P., Ferrari, F., Fiedler, I., Fleck, M., Ford, A., Frey, A., Furtje, P., Gagnon, Jw, Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, M., Giunta, J., Goldberg, E., Gro, J., Grunhau, M., Gruwe, Po, Gunther, A., Gupta, C., Hajdu, M., Hamann, Gg, Hanson, K., Harder, A., Harel, M., Harin Dirac, M., Hauschild, J., Hauschildt, Cm, Hawke, R., Hawking, Rj, Hemingway, C., Hensel, G., Herten, Rd, Heuer, Jc, Hill, K., Hoffman, Rj, Homer, D., Horvath, R., Howard, P., Huntemeyer, P., Igo Kemene, K., Ishii, H., Jeremie, P., Jovanovic, Tr, Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, Rk, Keeler, Rg, Kellog, Bw, Kennedy, Dh, Kim, K., Klein, A., Klier, S., Kluth, T., Kobayashi, M., Kobel, S., Komamiya, L., Kormo, Rv, Kowalewski, T., Kramer, T., Kre, P., Krieger, J., von Krogh, D., Krop, K., Kruger, M., Kupper, Gd, Lafferty, H., Landsman, D., Lanske, Jg, Layter, A., Lein, D., Lellouch, J., Lett, L., Levinson, J., Lillich, Sl, Lloyd, Fk, Loebinger, J., Lu, J., Ludwig, A., Macpherson, W., Mader, S., Marcellini, Te, Marchant, Aj, Martin, Jp, Martin, G., Masetti, T., Mashimo, P., Mattig, Wj, Mcdonald, J., Mckenna, Tj, Mcmahon, Ra, Mcpherson, F., Meijer, P., Mendez Lorenzo, W., Menge, Fs, Merritt, H., Me, A., Michelini, S., Mihara, G., Mickenberg, Dj, Miller, S., Moed, W., Mohr, T., Mori, A., Mutter, K., Nagai, I., Nakamura, Ha, Neal, R., Nisiu, Sw, O'Neale, A., Oh, A., Okpara, Mj, Oreglia, S., Orito, C., Pahl, G., Pasztor, Jr, Pater, Gn, Patrick, Je, Pilcher, J., Pinfold, De, Plane, B., Poli, J., Polok, O., Pooth, M., Przybycien, A., Quadt, K., Rabbertz, C., Rembser, P., Renkel, H., Rick, Jm, Roney, S., Rosati, Y., Rozen, K., Runge, K., Sach, T., Saeki, O., Sahr, Ekg, Sarkisyan, Ad, Schaile, O., Schaile, P., Scharff Hansen, J., Schieck, T., Schoerner Sadeniu, M., Schroder, M., Schumacher, C., Schwick, Wg, Scott, R., Seuster, Tg, Shear, Bc, Shen, C., Shepherd, P., Sherwood, G., Siroli, A., Skuja, Am, Smith, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, F., Spano, A., Stahl, K., Stephen, D., Strom, R., Strohmer, S., Tarem, M., Tasevsky, Rj, Taylor, R., Teuscher, Ma, Thomson, E., Torrence, D., Toya, P., Tran, T., Trefzger, A., Tricoli, I., Trigger, Z., Trocsanyi, E., Tsur, MF Turner, Watson, I., Ueda, B., Ujvari, B., Vachon, Cf, Vollmer, P., Vannerem, M., Verzocchi, H., Vo, J., Vossebeld, D., Waller, Cp, Ward, Dr, Ward, Pm, Watkin, At, Watson, Nk, Watson, Ps, Well, T., Wengler, N., Werme, D., Wetterling, Gw, Wilson, Ja, Wilson, G., Wolf, Tr, Wyatt, S., Yamashita, D., Zer Zion, L., Zivkovic, and Opal, Collaboration
Subjects: Physics, Quark, Nuclear and High Energy Physics, Top quark, Particle physics, 010308 nuclear & particles physics, High Energy Physics::Lattice, Nuclear Theory, High Energy Physics::Phenomenology, Scalar (physics), FOS: Physical sciences, 7. Clean energy, 01 natural sciences, Bottom quark, High Energy Physics - Experiment, Charm quark, General Relativity and Quantum Cosmology, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Neutralino, High Energy Physics::Experiment, Neutrino, 010306 general physics, Particle Physics - Experiment, Lepton
Abstract: Searches for a scalar top quark and a scalar bottom quark have been performed using a data sample of 438 pb-1 at centre-of-mass energies of sqrt(s) = 192 - 209 GeV collected with the OPAL detector at LEP. No evidence for a signal was found. The 95% confidence level lower limit on the scalar top quark mass is 97.6 GeV if the mixing angle between the supersymmetric partners of the left- and right-handed states of the top quark is zero. When the scalar top quark decouples from the Z0 boson, the lower limit is 95.7 GeV. These limits were obtained assuming that the scalar top quark decays into a charm quark and the lightest neutralino, and that the mass difference between the scalar top quark and the lightest neutralino is larger than 10 GeV. The complementary decay mode of the scalar top quark decaying into a bottom quark, a charged lepton and a scalar neutrino has also been studied. The lower limit on the scalar top quark mass is 93.0 GeV for this decay mode, if the mass difference between the scalar top quark and the scalar neutrino is greater than 10 GeV and if the mixing angle of the scalar top quark is zero. From a search for the scalar bottom quark, a mass limit of 96.6 GeV was obtained if the mass difference between the scalar bottom quark and the lightest neutralino is larger than 10 GeV., Comment: 19 pages, 5 figures
Published: 2002
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15. Search for Yukawa production of a light neutral Higgs Boson at LEP

Author: Abbiendi, G., Ainsley, C., Akesson, P.F., Alexander, G., Allison, John, Anagnostou, G., Anderson, K.J., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Bailey, I., Barberio, E., Barlow, R.J., Batley, R.J., Bechtle, P., Behnke, T., Bell, Kenneth Watson, Bell, P.J., Bella, G., Bellerive, A., Benelli, G., Bethke, S., Biebel, O., Bloodworth, I.J., Boeriu, O., Bock, P., Bohme, J., Bonacorsi, D., Boutemeur, M., Braibant, S., Brigliadori, L., Brown, Robert M., Burckhart, H.J., Cammin, J., Campana, S., Carnegie, R.K., Caron, B., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Clarke, P.E.L., Clay, E., Cohen, I., Couchman, J., Csilling, A., Cuffiani, M., Dado, S., Dallavalle, G.Marco, Dallison, S., De Roeck, A., De Wolf, E.A., Dervan, P., Desch, K., Dienes, B., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Etzion, E., Fabbri, F., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, John William, Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Giunta, Marina, Goldberg, J., Graham, K., Gross, E., Grunhaus, J., Gruwe, M., Gunther, P.O., Gupta, A., Hajdu, C., Hamann, M., Hanson, G.G., Harder, K., Harel, A., Harin-Dirac, M., Hauschild, M., Hauschildt, J., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Hensel, C., Herten, G., Heuer, R.D., Hill, J.C., Hoffman, Kara Dion, Homer, R.J., Horvath, D., Hossain, K.R., Howard, R., Huntemeyer, P., Igo-Kemenes, P., Ishii, K., Jawahery, A., Jeremie, H., Jones, C.R., Jovanovic, P., Junk, T.R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kim, D.H., Klein, K., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Kokott, T.P., Komamiya, S., Kowalewski, Robert V., Kramer, T., Kress, T., Krieger, P., von Krogh, J., Krop, D., Kuhl, T., Kupper, M., Kyberd, P., Lafferty, G.D., Landsman, H., Lanske, D., Lawson, I., Layter, J.G., Leins, A., Lellouch, D., Letts, J., Levinson, L., Lillich, J., Littlewood, C., Lloyd, S.L., Loebinger, F.K., Lu, J., Ludwig, J., Macchiolo, A., Macpherson, A., Mader, W., Marcellini, S., Marchant, T.E., Martin, A.J., Martin, J.P., Martinez, G., Masetti, G., Mashimo, T., Mattig, Peter, McDonald, W.J., McKenna, J., McMahon, T.J., McPherson, R.A., Meijers, F., Mendez-Lorenzo, P., Menges, W., Merritt, F.S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Moed, S., Mohr, W., Mori, T., Mutter, A., Nagai, K., Nakamura, I., Neal, H.A., Nisius, R., O'Neale, S.W., Oh, A., Okpara, A., Oreglia, M.J., Orito, S., Pahl, C., Pasztor, G., Pater, J.R., Patrick, G.N., Pilcher, J.E., Pinfold, J., Plane, David E., Poli, B., Polok, J., Pooth, O., Quadt, A., Rabbertz, K., Rembser, C., Renkel, P., Rick, H., Rodning, N., Roney, J.M., Rosati, S., Roscoe, K., Rozen, Y., Runge, K., Rust, D.R., Sachs, K., Saeki, T., Sahr, O., Sarkisyan, E.K.G., Schaile, A.D., Schaile, O., Scharff-Hansen, P., Schroder, Matthias, Schumacher, M., Schwick, C., Scott, W.G., Seuster, R., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Spagnolo, S., Spano, F., Sproston, M., Stahl, A., Stephens, K., Strom, David M., Strohmer, R., Stumpf, L., Surrow, B., Tarem, S., Tasevsky, M., Taylor, R.J., Teuscher, R., Thomas, J., Thomson, M.A., Torrence, E., Toya, D., Trefzger, T., Tricoli, A., Trigger, I., Trocsanyi, Z., Tsur, E., Turner-Watson, M.F., Ueda, I., Ujvari, B., Vachon, B., Vollmer, C.F., Vannerem, P., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wengler, T., Wermes, N., Wetterling, D., Wilson, G.W., Wilson, J.A., Wyatt, T.R., Yamashita, S., Zacek, V., Zer-Zion, D., OPAL Collaboration, G., Abbiendi, C., Ainsley, P. F., Akesson, G., Alexander, J., Allison, G., Anagnostou, K. J., Anderson, S., Arcelli, S., Asai, D., Axen, G., Azuelo, I., Bailey, E., Barberio, R. J., Barlow, R. J., Batley, P., Bechtle, T., Behnke, K. W., Bell, P. J., Bell, G., Bella, A., Bellerive, G., Benelli, S., Bethke, O., Biebel, I. J., Bloodworth, O., Boeriu, P., Bock, J., Bohme, D., Bonacorsi, M., Boutemeur, S., Braibant, L., Brigliadori, R. M., Brown, H. J., Burckhart, J., Cammin, S., Campana, R. K., Carnegie, B., Caron, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, P. E., L., E., Clay, I., Cohen, J., Couchman, A., Csilling, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, A., De Roeck, E. A., De, P., Dervan, K., Desch, B., Diene, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, E., Etzion, F., Fabbri, L., Feld, P., Ferrari, F., Fiedler, I., Fleck, M., Ford, A., Frey, A., Furtje, D. I., Futyan, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, M., Giunta, J., Goldberg, K., Graham, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, A., Gupta, C., Hajdu, M., Hamann, G. G., Hanson, K., Harder, A., Harel, M., Harin Dirac, M., Hauschild, J., Hauschildt, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, J. C., Hill, K., Hoffman, R. J., Homer, D., Horvath, K. R., Hossain, R., Howard, P., Huntemeyer, P., Igo Kemene, K., Ishii, A., Jawahery, H., Jeremie, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, K., Klein, A., Klier, S., Kluth, T., Kobayashi, M., Kobel, T. P., Kokott, S., Komamiva, R. V., Kowalewski, T., Kramer, T., Kre, P., Krieger, J., von Krogh, D., Krop, T., Kuhl, M., Kupper, P., Kyberd, G. D., Lafferty, H., Landsman, D., Lanske, I., Lawson, J. G., Layter, A., Lein, D., Lellouch, J., Lett, L., Levinson, J., Lillich, C., Littlewood, S. L., Lloyd, F. K., Loebinger, J., Lu, J., Ludwig, A., Macchiolo, A., Macpherson, W., Mader, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Martinez, G., Masetti, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, W., Menge, F. S., Merritt, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, S., Moed, W., Mohr, T., Mori, A., Mutter, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, A., Oh, A., Okpara, M. J., Oreglia, S., Orito, C., Pahl, G., Pasztor, J. R., Pater, G. N., Patrick, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, O., Pooth, A., Quadt, K., Rabbertz, C., Rembser, P., Renkel, H., Rick, N., Rodning, J. M., Roney, S., Rosati, K., Roscoe, Y., Rozen, K., Runge, D. R., Rust, K., Sach, T., Saeki, O., Sahr, E. K., G., A. D., Schaile, O., Schaile, P., Scharff Hansen, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, A., Skuja, A. M., Smith, G. A., Snow, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, F., Spano, M., Sproston, A., Stahl, K., Stephen, D., Strom, R., Strohmer, L., Stumpf, B., Surrow, S., Tarem, M., Tasevsky, R. J., Taylor, R., Teuscher, J., Thoma, M. A., Thomson, E., Torrence, D., Toya, T., Trefzger, A., Tricoli, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, B., Ujvari, B., Vachon, C. F., Vollmer, P., Vannerem, M., Verzocchi, H., Vo, J., Vossebeld, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, G. W., Wilson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, and D., Zer Zion
Subjects: Physics, Range (particle radiation), Particle physics, Muon, Physics and Astronomy (miscellaneous), Anomalous magnetic dipole moment, 010308 nuclear & particles physics, Branching fraction, High Energy Physics::Phenomenology, Yukawa potential, FOS: Physical sciences, 7. Clean energy, 01 natural sciences, Standard Model, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Higgs boson, High Energy Physics::Experiment, 010306 general physics, Engineering (miscellaneous), Particle Physics - Experiment, Boson
Abstract: Within a Two-Higgs-Doublet Model (2HDM) a search for a light Higgs boson in the mass range of 4-12 GeV has been performed in the Yukawa process e+e- -> b bbar A/h -> b bbar tau+tau-, using the data collected by the OPAL detector at LEP between 1992 and 1995 in e+e- collisions at about 91 GeV centre-of-mass energy. A likelihood selection is applied to separate background and signal. The number of observed events is in good agreement with the expected background. Within a CP-conserving 2HDM type II model the cross-section for Yukawa production depends on xiAd = |tan beta| and xihd = |sin alpha/cos beta| for the production of the CP-odd A and the CP-even h, respectively, where tan beta is the ratio of the vacuum expectation values of the Higgs doublets and alpha is the mixing angle between the neutral CP-even Higgs bosons. From our data 95% C.L. upper limits are derived for xiAd within the range of 8.5 to 13.6 and for xihd between 8.2 to 13.7, depending on the mass of the Higgs boson, assuming a branching fraction into tau+tau- of 100%. An interpretation of the limits within a 2HDM type II model with Standard Model particle content is given. These results impose constraints on several models that have been proposed to explain the recent BNL measurement of the muon anomalous magnetic moment., 24 pages, 9 figures, Submitted to Euro. Phys. J. C
Published: 2002

16. Search for the Standard Model Higgs Boson with the OPAL Detector at LEP

Author: Abbiendi, G., Ainsley, C., Akesson, P.F., Alexander, G., Allison, John, Amaral, P., Anagnostou, G., Anderson, K.J., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Bailey, I., Barberio, E., Barlow, R.J., Batley, R.J., Bechtle, P., Behnke, T., Bell, Kenneth Watson, Bell, P.J., Bella, G., Bellerive, A., Benelli, G., Bethke, S., Biebel, O., Bloodworth, I.J., Boeriu, O., Bock, P., Bonacorsi, D., Boutemeur, M., Braibant, S., Brigliadori, L., Brown, Robert M., Buesser, K., Burckhart, H.J., Campana, S., Carnegie, R.K., Caron, B., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Csilling, A., Cuffiani, M., Dado, S., Dallavalle, G.Marco, Dallison, S., De Roeck, A., De Wolf, E.A., Desch, K., Dienes, B., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Elfgren, E., Etzion, E., Fabbri, F., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Furtjes, A., Gagnon, P., Gary, John William, Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Giunta, Marina, Goldberg, J., Gross, E., Grunhaus, J., Gruwe, M., Gunther, P.O., Gupta, A., Hajdu, C., Hamann, M., Hanson, G.G., Harder, K., Harel, A., Harin-Dirac, M., Hauschild, M., Hauschildt, J., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Hensel, C., Herten, G., Heuer, R.D., Hill, J.C., Hoffman, Kara Dion, Homer, R.J., Horvath, D., Howard, R., Huntemeyer, P., Igo-Kemenes, P., Ishii, K., Jeremie, H., Jovanovic, P., Junk, T.R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kim, D.H., Klein, K., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Komamiya, S., Kormos, Laura L., Kowalewski, Robert V., Kramer, T., Kress, T., Krieger, P., von Krogh, J., Krop, D., Kruger, K., Kupper, M., Lafferty, G.D., Landsman, H., Lanske, D., Layter, J.G., Leins, A., Lellouch, D., Letts, J., Levinson, L., Lillich, J., Lloyd, S.L., Loebinger, F.K., Lu, J., Ludwig, J., Macpherson, A., Mader, W., Marcellini, S., Marchant, T.E., Martin, A.J., Martin, J.P., Masetti, G., Mashimo, T., Mattig, Peter, McDonald, W.J., McKenna, J., McMahon, T.J., McPherson, R.A., Meijers, F., Mendez-Lorenzo, P., Menges, W., Merritt, F.S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Moed, S., Mohr, W., Mori, T., Mutter, A., Nagai, K., Nakamura, I., Neal, H.A., Nisius, R., O'Neale, S.W., Oh, A., Okpara, A., Oreglia, M.J., Orito, S., Pahl, C., Pasztor, G., Pater, J.R., Patrick, G.N., Pilcher, J.E., Pinfold, J., Plane, David E., Poli, B., Polok, J., Pooth, O., Przybycien, M., Quadt, A., Rabbertz, K., Rembser, C., Renkel, P., Rick, H., Roney, J.M., Rosati, S., Rozen, Y., Runge, K., Sachs, K., Saeki, T., Sahr, O., Sarkisyan, E.K.G., Schaile, A.D., Schaile, O., Scharff-Hansen, P., Schieck, J., Schoerner-Sadenius, Thomas, Schroder, Matthias, Schumacher, M., Schwick, C., Scott, W.G., Seuster, R., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G., Skuja, A., Smith, A.M., Sobie, R., Soldner-Rembold, S., Spagnolo, S., Spano, F., Stahl, A., Stephens, K., Strom, David M., Strohmer, R., Tarem, S., Tasevsky, M., Taylor, R.J., Teuscher, R., Thomson, M.A., Torrence, E., Toya, D., Tran, P., Trefzger, T., Tricoli, A., Trigger, I., Trocsanyi, Z., Tsur, E., Turner-Watson, M.F., Ueda, I., Ujvari, B., Vachon, B., Vollmer, C.F., Vannerem, P., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wengler, T., Wermes, N., Wetterling, D., Wilson, G.W., Wilson, J.A., Wolf, G., Wyatt, T.R., Yamashita, S., Zer-Zion, D., Zivkovic, Lidija, OPAL Collaboration, G., Abbiendi, C., Ainsley, P. F., Akesson, G., Alexander, J., Allison, P., Amaral, G., Anagnostou, K. J., Anderson, S., Arcelli, S., Asai, D., Axen, G., Azuelo, I., Bailey, E., Barberio, R. J., Barlow, R. J., Batley, P., Bechtle, T., Behnke, K. W., Bell, P. J., Bell, G., Bella, A., Bellerive, G., Benelli, S., Bethke, O., Biebell, I. J., Bloodworth, O., Boeriun, P., Bock, D., Bonacorsi, M., Boutemeur, S., Braibant, L., Brigliadori, R. M., Brown, K., Buesser, H. J., Burckhart, S., Campana, R. K., Carnegie, B., Caron, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, A., Csilling, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, A., De Roeck, E. A., De, K., Desch, B., Diene, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, E., Elfgren, E., Etzion, F., Fabbri, L., Feld, P., Ferrari, F., Fiedler, I., Fleck, M., Ford, A., Frey, A., Furtje, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, M., Giunta, J., Goldberg, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, A., Gupta, C., Hajdu, M., Hamann, G. G., Hanson, K., Harder, A., Harel, M., Harin Dirac, M., Hauschild, J., Hauschildt, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, J. C., Hill, K., Hoffman, R. J., Homer, D., Horvath, R., Howard, P., Huntemeyer, P., Igo Kemene, K., Ishii, H., Jeremie, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, K., Klein, A., Klier, S., Kluth, T., Kobayashi, M., Kobel, S., Komamiya, L., Kormo, R. V., Kowalewski, T., Kramer, T., Kre, P., Krieger, J., von Krogh, D., Krop, K., Kruger, M., Kupper, G. D., Lafferty, H., Landsman, D., Lanske, J. G., Layter, A., Lein, D., Lellouch, J., Lett, L., Levinson, J., Lillich, S. L., Lloyd, F. K., Loebinger, J., Lu, J., Ludwig, A., Macpherson, W., Mader, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Masetti, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, W., Menge, F. S., Merritt, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, S., Moed, W., Mohr, T., Mori, A., Mutter, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, A., Oh, A., Okpara, M. J., Oreglia, S., Orito, C., Pahl, G., Pasztor, J. R., Pater, G. N., Patrick, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, O., Pooth, M., Przybycien, A., Quadt, K., Rabbertz, C., Rembser, P., Renkel, H., Rick, J. M., Roney, S., Rosati, Y., Rozen, K., Runge, K., Sach, T., Saeki, O., Sahr, E. K., G., A. D., Schaile, O., Schaile, P., Scharff Hansen, J., Schieck, T., Schorner Sadeniu, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, G., Siroli, A., Skuja, A. M., Smith, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, F., Spano, A., Stah, K., Stephen, D., Strom, R., Strohmer, S., Tarem, M., Tasevsky, R. J., Taylor, R., Teuscher, M. A., Thomson, E., Torrence, D., Toya, P., Tran, T., Trefzger, A., Tricoli, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, B., Ujvari, B., Vachon, C. F., Vollmer, P., Vannerem, M., Verzocchi, H., Vo, J., Vossebeld, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, G. W., Wilson, J. A., Wilson, G., Wolf, T. R., Wyatt, S., Yamashita, D., Zer Zion, and L., Zivkovic
Subjects: Physics, Particle physics, Physics and Astronomy (miscellaneous), Detector, High Energy Physics::Phenomenology, FOS: Physical sciences, Upper and lower bounds, Standard Model, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Consistency (statistics), Higgs boson, High Energy Physics::Experiment, Engineering (miscellaneous), Particle Physics - Experiment
Abstract: This paper summarises the search for the Standard Model Higgs boson in e+e- collisions at centre-of-mass energies up to 209 GeV performed by the OPAL Collaboration at LEP. The consistency of the data with the background hypothesis and various Higgs boson mass hypotheses is examined. No indication of a signal is found in the data and a lower bound of 112.7GeV/C^2 is obtained on the mass of the Standard Model Higgs boson at the 95% CL., Comment: 51 pages, 21 figures
Published: 2002
Full Text: View/download PDF

17. Measurement of the b quark forward-backward asymmetry around the Z0 peak using an inclusive tag

Author: Abbiendi, G., Ainsley, C., Akesson, P.F., Alexander, G., Allison, John, Amaral, P., Anagnostou, G., Anderson, K.J., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Bailey, I., Barberio, E., Barlow, R.J., Batley, R.J., Bechtle, P., Behnke, T., Bell, Kenneth Watson, Bell, P.J., Bella, G., Bellerive, A., Benelli, G., Bethke, S., Biebel, O., Bloodworth, I.J., Boeriu, O., Bock, P., Bonacorsi, D., Boutemeur, M., Braibant, S., Brigliadori, L., Brown, Robert M., Buesser, K., Burckhart, H.J., Campana, S., Carnegie, R.K., Caron, B., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Csilling, A., Cuffiani, M., Dado, S., Dallavalle, G.Marco, Dallison, S., De Roeck, A., De Wolf, E.A., Desch, K., Dienes, B., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Elfgren, E., Etzion, E., Fabbri, F., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Furtjes, A., Gagnon, P., Gary, John William, Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Giunta, Marina, Goldberg, J., Gross, E., Grunhaus, J., Gruwe, M., Gunther, P.O., Gupta, A., Hajdu, C., Hamann, M., Hanson, G.G., Harder, K., Harel, A., Harin-Dirac, M., Hauschild, M., Hauschildt, J., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Hensel, C., Herten, G., Heuer, R.D., Hill, J.C., Hoffman, Kara Dion, Homer, R.J., Horvath, D., Howard, R., Huntemeyer, P., Igo-Kemenes, P., Ishii, K., Jeremie, H., Jovanovic, P., Junk, T.R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kim, D.H., Klein, K., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Komamiya, S., Kormos, Laura L., Kowalewski, Robert V., Kramer, T., Kress, T., Krieger, P., von Krogh, J., Krop, D., Kruger, K., Kupper, M., Lafferty, G.D., Landsman, H., Lanske, D., Layter, J.G., Leins, A., Lellouch, D., Letts, J., Levinson, L., Lillich, J., Lloyd, S.L., Loebinger, F.K., Lu, J., Ludwig, J., Macpherson, A., Mader, W., Marcellini, S., Marchant, T.E., Martin, A.J., Martin, J.P., Masetti, G., Mashimo, T., Mattig, Peter, McDonald, W.J., McKenna, J., McMahon, T.J., McPherson, R.A., Meijers, F., Mendez-Lorenzo, P., Menges, W., Merritt, F.S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Moed, S., Mohr, W., Mori, T., Mutter, A., Nagai, K., Nakamura, I., Neal, H.A., Nisius, R., O'Neale, S.W., Oh, A., Okpara, A., Oreglia, M.J., Orito, S., Pahl, C., Pasztor, G., Pater, J.R., Patrick, G.N., Pilcher, J.E., Pinfold, J., Plane, David E., Poli, B., Polok, J., Pooth, O., Przybycien, M., Quadt, A., Rabbertz, K., Rembser, C., Renkel, P., Rick, H., Roney, J.M., Rosati, S., Rozen, Y., Runge, K., Sachs, K., Saeki, T., Sahr, O., Sarkisyan, E.K.G., Schaile, A.D., Schaile, O., Scharff-Hansen, P., Schieck, J., Schoerner-Sadenius, Thomas, Schroder, Matthias, Schumacher, M., Schwick, C., Scott, W.G., Seuster, R., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G., Skuja, A., Smith, A.M., Sobie, R., Soldner-Rembold, S., Spagnolo, S., Spano, F., Stahl, A., Stephens, K., Strom, David M., Strohmer, R., Tarem, S., Tasevsky, M., Taylor, R.J., Teuscher, R., Thomson, M.A., Torrence, E., Toya, D., Tran, P., Trefzger, T., Tricoli, A., Trigger, I., Trocsanyi, Z., Tsur, E., Turner-Watson, M.F., Ueda, I., Ujvari, B., Vachon, B., Vollmer, C.F., Vannerem, P., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wengler, T., Wermes, N., Wetterling, D., Wilson, G.W., Wilson, J.A., Wolf, G., Wyatt, T.R., Yamashita, S., Zer-Zion, D., Zivkovic, Lidija, G., Abbiendi, P. F., Akesson, G., Alexander, J., Allison, P., Amaral, G., Anagnostou, K. J., Anderson, S., Arcelli, S., Asai, D., Axen, G., Azuelo, I., Bailey, E., Barberio, R. J., Barlow, R. J., Batley, P., Bechtle, T., Behnke, K. W., Bell, P. J., Bell, G., Bella, A., Bellerive, G., Benelli, S., Bethke, O., Biebel, I. J., Bloodworth, O., Boeriu, P., Bock, D., Bonacorsi, M., Boutemeur, S., Braibant, L., Brigliadori, R. M., Brown, K., Buesser, H. J., Burckhart, S., Campana, R. K., Carnegie, B., Caron, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, A., Csilling, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, A., De Roeck, E. A., De, K., Desch, B., Diene, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, E., Elfgren, E., Etzion, F., Fabbri, L., Feld, P., Ferrari, F., Fiedler, I., Fleck, M., Ford, A., Frey, A., Furtje, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, M., Giunta, J., Goldberg, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, A., Gupta, C., Hajdu, M., Hamann, G. G., Hanson, K., Harder, A., Harel, M., Harin Dirac, M., Hauschild, J., Hauschildt, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, J. C., Hill, K., Hoffman, R. J., Homer, D., Horvath, R., Howard, P., Huntemeyer, P., Igo Kemene, K., Ishii, H., Jeremie, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, K., Klein, A., Klier, S., Kluth, T., Kobayashi, M., Kobel, S., Komamiya, L., Korma, R. V., Kowalewski, T., Kramer, T., Kre, P., Krieger, J., von Krogh, D., Krop, K., Kruger, M., Kupper, G. D., Lafferty, H., Landsman, D., Lanske, J. G., Layter, A., Lein, D., Lellouch, J., Lett, L., Levinson, J., Lillich, S. L., Lloyd, F. K., Loebinger, J., Lu, J., Ludwig, A., Macpherson, W., Mader, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Masetti, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, W., Menge, F. S., Merritt, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, S., Moed, W., Mohr, T., Mori, A., Mutter, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, A., Oh, A., Okpara, M. J., Oreglia, S., Orito, C., Pahl, G., Pasztor, J. R., Pater, G. N., Patrick, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, O., Pooth, M., Przybycien, A., Quadt, K., Rabbertz, C., Rembser, P., Renkel, H., Rick, J. M., Roney, S., Rosati, Y., Rozen, K., Runge, K., Sach, T., Saeki, O., Sahr, E. K., G., A. D., Schaile, O., Schaile, P., Scharff Hansen, J., Schieck, T., Schorner Sadeniu, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, G., Siroli, A., Skuja, A. M., Smith, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, F., Spano, A., Stahl, K., Stephen, D., Strom, R., Strohmer, S., Tarem, M., Tasevsky, R. J., Taylor, R., Teuscher, M. A., Thomson, E., Torrence, D., Toya, P., Tran, T., Trefzger, A., Tricoli, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, B., Ujvari, B., Vachon, C. F., Vollmer, P., Vannerem, M., Verzocchi, H., Vo, J., Vossebeld, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, G. W., Wilson, J. A., Wilson, G., Wolf, T. R., Wyatt, S., Yamashita, D., Zer Zion, L., Zivkovic, and OPAL Collaboration
Subjects: Quark, Physics, Particle physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, media_common.quotation_subject, Hadron, FOS: Physical sciences, Jet (particle physics), 01 natural sciences, Bottom quark, Asymmetry, Standard Model, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Vertex (curve), High Energy Physics::Experiment, 010306 general physics, Nuclear Experiment, Particle Physics - Experiment, media_common, Lepton
Abstract: The b quark forward-backward asymmetry has been measured using hadronic Z0 decays collected by the OPAL experiment at LEP. Z0 -> bbbar decays were selected using a combination of secondary vertex and lepton tags, and the sign of the b quark charge was determined using an inclusive tag based on jet, vertex and kaon charges. The results, corrected to the quark level, are: A^b_FB = 0.0582 +- 0.0153 +- 0.0012 at sqrt(s) = 89.50 GeV A^b_FB = 0.0977 +- 0.0036 +- 0.0018 at sqrt(s) = 91.26 GeV A^b_FB = 0.1221 +- 0.0123 +- 0.0025 at sqrt(s) = 92.91 GeV where the first error is statistical and the second systematic in each case. Within the framework of the Standard Model, the result is interpreted as a measurement of the effective weak mixing angle for electrons of sin2theta_W^eff,e = 0.23205 +- 0.00068., 23 pages, 5 figures
Published: 2002
Full Text: View/download PDF

18. Charged Particle Momentum Spectra in e+e- annihilation at sqrt(s) = 192-209 GeV

Author: G. Abbiendi, C. Ainsley, P. F. Akesson, G. Alexander, J. Allison, P. Amaral, G. Anagnostou, K. J. Anderson, S. Arcelli, S. Asai, D. Axen, G. Azuelos, I. Bailey, E. Barberio, R. J. Barlow, R. J. Batley, P. Bechtle, T. Behnke, K. W. Bell, P. J. Bell, G. Bella, A. Bellerive, G. Benelli, S. Bethke, O. Biebel, I. J. Bloodworth, O. Boeriu, P. Bock, D. Bonacorsi, M. Boutemeur, S. Braibant, L. Brigliadori, R. M. Brown, K. Buesser, H. J. Burckhart, S. Campana, R. K. Carnegie, B. Caron, A. A. Carter, J. R. Carter, C. Y. Chang, D. G. Charlton, A. Csilling, M. Cuffiani, S. Dado, G. M. Dallavalle, S. Dallison, A. D. Roeck, E. A. De, K. Desch, B. Dienes, M. Donkers, J. Dubbert, E. Duchovni, G. Duckeck, I. P. Duerdoth, E. Elfgren, E. Etzion, F. Fabbri, L. Feld, P. Ferrari, F. Fiedler, I. Fleck, M. Ford, A. Frey, A. Furtjes, P. Gagnon, J. W. Gary, G. Gaycken, C. Geich Gimbel, G. Giacomelli, P. Giacomelli, M. Giunta, J. Goldberg, E. Gross, J. Grunhaus, M. Gruwe, P. O. Gunther, A. Gupta, C. Hajdu, M. Hamann, G. G. Hanson, K. Harder, A. Harel, M. Harin Dirac, M. Hauschild, J. Hauschildt, C. M. Hawkes, R. Hawkings, R. J. Hemingway, C. Hensel, G. Herten, R. D. Heuer, J. C. Hill, K. Hoffman, R. J. Homer, D. Horvath, R. Howard, P. Huntemeyer, P. Igo Kemenes, K. Ishii, H. Jeremie, P. Jovanovic, T. R. Junk, N. Kanaya, J. Kanzaki, G. Karapetian, D. Karlen, V. Kartvelishvili, K. Kawagoe, T. Kawamoto, R. K. Keeler, R. G. Kellogg, B. W. Kennedy, D. H. Kim, K. Klein, A. Klier, S. Kluth, T. Kobayashi, M. Kobel, S. Komamiya, L. Kormos, R. V. Kowalewski, T. Kramer, T. Kress, P. Krieger, J. v. Krogh, D. Krop, K. Kruger, M. Kupper, G. D. Lafferty, H. Landsman, D. Lanske, J. G. Layter, A. Leins, D. Lellouch, J. Letts, L. Levinson, J. Lillich, S. L. Lloyd, F. K. Loebinger, J. Lu, J. Ludwig, A. Macpherson, W. Mader, S. Marcellini, T. E. Marchant, A. J. Martin, J. P. Martin, G. Masetti, T. Mashimo, P. Mattig, W. J. McDonald, J. McKenna, T. J. McMahon, R. A. McPherson, F. Meijers, P. Mendez Lorenzo, W. Menges, F. S. Merritt, H. Mes, A. Michelini, S. Mihara, G. Mikenberg, D. J. Miller, S. Moed, W. Mohr, T. Mori, A. Mutter, K. Nagai, I. Nakamura, H. A. Neal, R. Nisius, S. W. O'Neale, A. Oh, A. Okpara, M. J. Oreglia, S. Orito, C. Pahl, G. Pasztor, J. R. Pater, G. N. Patrick, J. E. Pilcher, J. Pinfold, D. E. Plane, B. Poli, J. Polok, O. Pooth, M. Przybycien, A. Quadt, K. Rabbertz, C. Rembser, P. Renkel, H. Rick, J. M. Roney, S. Rosati, Y. Rozen, K. Runge, K. Sachs, T. Saeki, O. Sahr, E. K. G., A. D. Schaile, O. Schaile, P. Scharff Hansen, J. Schieck, T. Schorner Sadenius, M. Schroder, M. Schumacher, C. Schwick, W. G. Scott, R. Seuster, T. G. Shears, B. C. Shen, C. H. Shepherd Themistocleous, P. Sherwood, G. Siroli, A. Skuja, A. M. Smith, R. Sobie, S. Soldner Rembold, F. Spano, A. Stahl, K. Stephens, D. Strom, R. Strohmer, S. Tarem, M. Tasevsky, R. J. Taylor, R. Teuscher, M. A. Thomson, E. Torrence, D. Toya, P. Tran, T. Trefzger, A. Tricoli, I. Trigger, Z. Trocsanyi, E. Tsur, M. F. Turner Watson, I. Ueda, B. Ujvari, B. Vachon, C. F. Vollmer, P. Vannerem, M. Verzocchi, H. Voss, J. Vossebeld, D. Waller, C. P. Ward, D. R. Ward, P. M. Watkins, A. T. Watson, N. K. Watson, P. S. Wells, T. Wengler, N. Wermes, D. Wetterling, G. W. Wilson, J. A. Wilson, G. Wolf, T. R. Wyatt, S. Yamashita, D. Zer Zion, L. Zivkovic, SPAGNOLO, Stefania Antonia, G., Abbiendi, C., Ainsley, P. F., Akesson, G., Alexander, J., Allison, P., Amaral, G., Anagnostou, K. J., Anderson, S., Arcelli, S., Asai, D., Axen, G., Azuelo, I., Bailey, E., Barberio, R. J., Barlow, R. J., Batley, P., Bechtle, T., Behnke, K. W., Bell, P. J., Bell, G., Bella, A., Bellerive, G., Benelli, S., Bethke, O., Biebel, I. J., Bloodworth, O., Boeriu, P., Bock, D., Bonacorsi, M., Boutemeur, S., Braibant, L., Brigliadori, R. M., Brown, K., Buesser, H. J., Burckhart, S., Campana, R. K., Carnegie, B., Caron, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, A., Csilling, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, A. D., Roeck, E. A., De, K., Desch, B., Diene, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, E., Elfgren, E., Etzion, F., Fabbri, L., Feld, P., Ferrari, F., Fiedler, I., Fleck, M., Ford, A., Frey, A., Furtje, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, M., Giunta, J., Goldberg, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, A., Gupta, C., Hajdu, M., Hamann, G. G., Hanson, K., Harder, A., Harel, M., Harin Dirac, M., Hauschild, J., Hauschildt, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, J. C., Hill, K., Hoffman, R. J., Homer, D., Horvath, R., Howard, P., Huntemeyer, P., Igo Kemene, K., Ishii, H., Jeremie, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, K., Klein, A., Klier, S., Kluth, T., Kobayashi, M., Kobel, S., Komamiya, L., Kormo, R. V., Kowalewski, T., Kramer, T., Kre, P., Krieger, J. v., Krogh, D., Krop, K., Kruger, M., Kupper, G. D., Lafferty, H., Landsman, D., Lanske, J. G., Layter, A., Lein, D., Lellouch, J., Lett, L., Levinson, J., Lillich, S. L., Lloyd, F. K., Loebinger, J., Lu, J., Ludwig, A., Macpherson, W., Mader, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Masetti, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, W., Menge, F. S., Merritt, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, S., Moed, W., Mohr, T., Mori, A., Mutter, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, A., Oh, A., Okpara, M. J., Oreglia, S., Orito, C., Pahl, G., Pasztor, J. R., Pater, G. N., Patrick, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, O., Pooth, M., Przybycien, A., Quadt, K., Rabbertz, C., Rembser, P., Renkel, H., Rick, J. M., Roney, S., Rosati, Y., Rozen, K., Runge, K., Sach, T., Saeki, O., Sahr, E. K., G., A. D., Schaile, O., Schaile, P., Scharff Hansen, J., Schieck, T., Schorner Sadeniu, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, G., Siroli, A., Skuja, A. M., Smith, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, F., Spano, A., Stahl, K., Stephen, D., Strom, R., Strohmer, S., Tarem, M., Tasevsky, R. J., Taylor, R., Teuscher, M. A., Thomson, E., Torrence, D., Toya, P., Tran, T., Trefzger, A., Tricoli, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, B., Ujvari, B., Vachon, C. F., Vollmer, P., Vannerem, M., Verzocchi, H., Vo, J., Vossebeld, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, G. W., Wilson, J. A., Wilson, G., Wolf, T. R., Wyatt, S., Yamashita, D., Zer Zion, L., Zivkovic, and OPAL Collaboration
Subjects: Physics, Quantum chromodynamics, Particle physics, Annihilation, Luminosity (scattering theory), Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Hadron, Strong interaction, FOS: Physical sciences, 01 natural sciences, 7. Clean energy, Charged particle, Spectral line, High Energy Physics - Experiment, Momentum, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Engineering (miscellaneous), Particle Physics - Experiment
Abstract: Charged particle momentum distributions are studied in the reaction e+e- -> hadrons, using data collected with the OPAL detector at centre-of-mass energies from 192 GeV to 209 GeV. The data correspond to an average centre-of- mass energy of 201.7 GeV and a total integrated luminosity of 433 pb-1. The measured distributions and derived quantities, in combination with corresponding results obtained at lower centre-of-mass energies, are compared to QCD predictions in various theoretical approaches to study the energy dependence of the strong interaction and to test QCD as the theory describing it. In general, a good agreement is found between the measurements and the corresponding QCD predictions., 31 pages, 10 figures
Published: 2002
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19. Genuine Correlations of Like-Sign Particles in Hadronic Z0 Decays

Author: G Abbiendi, C Ainsley, P.F Åkesson, G Alexander, J Allison, G Anagnostou, K.J Anderson, S Arcelli, S Asai, D Axen, G Azuelos, I Bailey, E Barberio, R.J Barlow, R.J Batley, T Behnke, K.W Bell, P.J Bell, G Bella, A Bellerive, G Benelli, S Bethke, O Biebel, I.J Bloodworth, O Boeriu, P Bock, J Böhme, D Bonacorsi, M Boutemeur, S Braibant, L Brigliadori, R.M Brown, H.J Burckhart, J Cammin, R.K Carnegie, B Caron, A.A Carter, J.R Carter, C.Y Chang, D.G Charlton, P.E.L Clarke, E Clay, I Cohen, J Couchman, A Csilling, M Cuffiani, S Dado, G.M Dallavalle, S Dallison, A De Roeck, E.A De Wolf, P Dervan, K Desch, B Dienes, M.S Dixit, M Donkers, J Dubbert, E Duchovni, G Duckeck, I.P Duerdoth, E Etzion, F Fabbri, L Feld, P Ferrari, F Fiedler, I Fleck, M Ford, A Frey, A Fürtjes, D.I Futyan, P Gagnon, J.W Gary, G Gaycken, C Geich-Gimbel, G Giacomelli, P Giacomelli, D Glenzinski, J Goldberg, K Graham, E Gross, J Grunhaus, M Gruwé, P.O Günther, A Gupta, C Hajdu, M Hamann, G.G Hanson, K Harder, A Harel, M Harin-Dirac, M Hauschild, J Hauschildt, C.M Hawkes, R Hawkings, R.J Hemingway, C Hensel, G Herten, R.D Heuer, J.C Hill, K Hoffman, R.J Homer, D Horváth, K.R Hossain, R Howard, P Hüntemeyer, P Igo-Kemenes, K Ishii, A Jawahery, H Jeremie, C.R Jones, P Jovanovic, T.R Junk, N Kanaya, J Kanzaki, G Karapetian, D Karlen, V Kartvelishvili, K Kawagoe, T Kawamoto, R.K Keeler, R.G Kellogg, B.W Kennedy, D.H Kim, K Klein, A Klier, S Kluth, T Kobayashi, M Kobel, T.P Kokott, S Komamiya, R.V Kowalewski, T Krämer, T Kress, P Krieger, J von Krogh, D Krop, T Kuhl, M Kupper, P Kyberd, G.D Lafferty, H Landsman, D Lanske, I Lawson, J.G Layter, A Leins, D Lellouch, J Letts, L Levinson, J Lillich, C Littlewood, S.L Lloyd, F.K Loebinger, G.D Long, M.J Losty, J Lu, J Ludwig, A Macchiolo, A Macpherson, W Mader, S Marcellini, T.E Marchant, A.J Martin, J.P Martin, G Martinez, G Masetti, T Mashimo, P Mättig, W.J McDonald, J McKenna, T.J McMahon, R.A McPherson, F Meijers, P Mendez-Lorenzo, W Menges, F.S Merritt, H Mes, A Michelini, S Mihara, G Mikenberg, D.J Miller, S Moed, W Mohr, T Mori, A Mutter, K Nagai, I Nakamura, H.A Neal, R Nisius, S.W O'Neale, A Oh, A Okpara, M.J Oreglia, S Orito, C Pahl, G Pásztor, J.R Pater, G.N Patrick, J.E Pilcher, J Pinfold, D.E Plane, B Poli, J Polok, O Pooth, A Quadt, K Rabbertz, C Rembser, P Renkel, H Rick, N Rodning, J.M Roney, S Rosati, K Roscoe, Y Rozen, K Runge, D.R Rust, K Sachs, T Saeki, O Sahr, E.K.G Sarkisyan, C Sbarra, A.D Schaile, O Schaile, P Scharff-Hansen, M Schröder, M Schumacher, C Schwick, W.G Scott, R Seuster, T.G Shears, B.C Shen, C.H Shepherd-Themistocleous, P Sherwood, A Skuja, A.M Smith, G.A Snow, R Sobie, S Söldner-Rembold, S Spagnolo, F Spano, M Sproston, A Stahl, K Stephens, D Strom, R Ströhmer, L Stumpf, B Surrow, S Tarem, M Tasevsky, R.J Taylor, R Teuscher, J Thomas, M.A Thomson, E Torrence, D Toya, T Trefzger, A Tricoli, I Trigger, Z Trócsányi, E Tsur, M.F Turner-Watson, I Ueda, B Ujvári, B Vachon, C.F Vollmer, P Vannerem, M Verzocchi, H Voss, J Vossebeld, D Waller, C.P Ward, D.R Ward, P.M Watkins, A.T Watson, N.K Watson, P.S Wells, T Wengler, N Wermes, D Wetterling, G.W Wilson, J.A Wilson, T.R Wyatt, S Yamashita, V Zacek, D Zer-Zion, G., Abbiendi, C., Ainsley, P. F., Akesson, G., Alexander, J., Allison, G., Anagnostou, K. J., Anderson, S., Arcelli, S., Asai, D., Axen, G., Azuelo, I., Bailey, E., Barberio, R. J., Barlow, R. J., Batley, T., Behnke, K. W., Bell, P. J., Bell, G., Bella, A., Bellerive, G., Benelli, S., Bethke, O., Biebel, I. J., Bloodworth, O., Boeriu, P., Bock, J., Bohme, D., Bonacorsi, M., Boutemeur, S., Braibant, L., Brigliadori, R. M., Brown, H. J., Burckhart, J., Cammin, R. K., Carnegie, B., Caron, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, P. E., L., E., Clay, I., Cohen, J., Couchman, A., Csilling, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, A., De Roeck, E. A., De, P., Dervan, K., Desch, B., Diene, M. S., Dixit, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, E., Etzion, F., Fabbri, L., Feld, P., Ferrari, F., Fiedler, I., Fleck, M., Ford, A., Frey, A., Furtje, D. I., Futyan, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, D., Glenzinski, J., Goldberg, K., Graham, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, A., Gupta, C., Hajdu, M., Hamann, G. G., Hanson, K., Harder, A., Harel, M., Harin Dirac, M., Hauschild, J., Hauschildt, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, J. C., Hill, K., Hoffman, R. J., Homer, D., Horvath, K. R., Hossain, R., Howard, P., Huntemeyer, P., Igo Kemene, K., Ishii, A., Jawahery, H., Jeremie, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, K., Klein, A., Klier, S., Kluth, T., Kobayashi, M., Kobel, T. P., Kokott, S., Komamiya, R. V., Kowalewski, T., Kramer, T., Kre, P., Krieger, J., von Krogh, D., Krop, T., Kuhl, M., Kupper, P., Kyberd, G. D., Lafferty, H., Landsman, D., Lanske, I., Lawson, J. G., Layter, A., Lein, D., Lellouch, J., Lett, L., Levinson, J., Lillich, C., Littlewood, S. L., Lloyd, F. K., Loebinger, G. D., Long, M. J., Losty, J., Lu, J., Ludwig, A., Macchiolo, A., Macpherson, W., Mader, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Martinez, G., Masetti, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, W., Menge, F. S., Merritt, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, S., Moed, W., Mohr, T., Mori, A., Mutter, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, A., Oh, A., Okpara, M. J., Oreglia, S., Orito, C., Pahl, G., Pasztor, J. R., Pater, G. N., Patrick, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, O., Pooth, A., Quadt, K., Rabbertz, C., Rembser, P., Renkel, H., Rick, N., Rodning, J. M., Roney, S., Rosati, K., Roscoe, Y., Rozen, K., Runge, D. R., Rust, K., Sach, T., Saeki, O., Sahr, E. K., G., C., Sbarra, A. D., Schaile, O., Schaile, P., Scharff Hansen, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, A., Skuja, A. M., Smith, G. A., Snow, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, F., Spano, M., Sproston, A., Stahl, K., Stephen, D., Strom, R., Strohmer, L., Stumpf, B., Surrow, S., Tarem, M., Tasevsky, R. J., Taylor, R., Teuscher, J., Thoma, M. A., Thomson, E., Torrence, D., Toya, T., Trefzger, A., Tricoli, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, B., Ujvari, B., Vachon, C. F., Vollmer, P., Vannerem, M., Verzocchi, H., Vo, J., Vossebeld, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, G. W., Wilson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, D., Zer Zion, and OPAL Collaboration
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Monte Carlo method, Hadron, FOS: Physical sciences, Charge (physics), 01 natural sciences, Measure (mathematics), Electric charge, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Phase space, 0103 physical sciences, Rapidity, 010306 general physics, Cumulant, Particle Physics - Experiment
Abstract: Correlations among hadrons with the same electric charge produced in Z0 decays are studied using the high statistics data collected from 1991 through 1995 with the OPAL detector at LEP. Normalized factorial cumulants up to fourth order are used to measure genuine particle correlations as a function of the size of phase space domains in rapidity, azimuthal angle and transverse momentum. Both all-charge and like-sign particle combinations show strong positive genuine correlations. One-dimensional cumulants initially increase rapidly with decreasing size of the phase space cells but saturate quickly. In contrast, cumulants in two- and three-dimensional domains continue to increase. The strong rise of the cumulants for all-charge multiplets is increasingly driven by that of like-sign multiplets. This points to the likely influence of Bose-Einstein correlations. Some of the recently proposed algorithms to simulate Bose-Einstein effects, implemented in the Monte Carlo model PYTHIA, are found to reproduce reasonably well the measured second- and higher-order correlations between particles with the same charge as well as those in all-charge particle multiplets., 26 pages, 6 figures, Submitted to Phys. Lett. B
Published: 2001

20. Measurement of W boson polarisations and CP-violating triple gauge couplings from $W^{+}W^{-}$ production at LEP

Author: Abbiendi, G., Ackerstaff, K., Ainsley, C., Akesson, P.F., Alexander, G., Allison, John, Anderson, K.J., Arcelli, S., Asai, S., Ashby, S.F., Axen, D., Azuelos, G., Bailey, I., Ball, A.H., Barberio, E., Barlow, Roger J., Baumann, S., Behnke, T., Bell, Kenneth Watson, Bella, G., Bellerive, A., Benelli, G., Bentvelsen, S., Bethke, S., Biebel, O., Bloodworth, I.J., Boeriu, O., Bock, P., Bohme, J., Bonacorsi, D., Boutemeur, M., Braibant, S., Bright-Thomas, P., Brigliadori, L., Brown, Robert M., Burckhart, H.J., Cammin, J., Capiluppi, P., Carnegie, R.K., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Clarke, P.E.L., Clay, E., Cohen, I., Cooke, O.C., Couchman, J., Couyoumtzelis, C., Coxe, R.L., Csilling, A., Cuffiani, M., Dado, S., Dallavalle, G.Marco, Dallison, S., de Roeck, A., de Wolf, E., Dervan, P., Desch, K., Dienes, B., Dixit, M.S., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Estabrooks, P.G., Etzion, E., Fabbri, F., Fanti, M., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Glenzinski, D., Goldberg, J., Grandi, C., Graham, K., Gross, E., Grunhaus, J., Gruwe, M., Gunther, P.O., Hajdu, C., Hanson, G.G., Hansroul, M., Hapke, M., Harder, K., Harel, A., Harin-Dirac, M., Hauke, A., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Hensel, C., Herten, G., Heuer, R.D., Hill, J.C., Hocker, James Andrew, Hoffman, Kara Dion, Homer, R.J., Honma, A.K., Horvath, D., Hossain, K.R., Howard, R., Huntemeyer, P., Igo-Kemenes, P., Ishii, K., Jacob, F.R., Jawahery, A., Jeremie, H., Jones, C.R., Jovanovic, P., Junk, T.R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kim, D.H., Klein, K., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Kokott, T.P., Komamiya, S., Kowalewski, Robert V., Kress, T., Krieger, P., von Krogh, J., Kuhl, T., Kupper, M., Kyberd, P., Lafferty, G.D., Landsman, H., Lanske, D., Lawson, I., Layter, J.G., Leins, A., Lellouch, D., Letts, J., Levinson, L., Liebisch, R., Lillich, J., List, B., Littlewood, C., Lloyd, A.W., Lloyd, S.L., Loebinger, F.K., Long, G.D., Losty, M.J., Lu, J., Ludwig, J., Macchiolo, A., Macpherson, A., Mader, W., Marcellini, S., Marchant, T.E., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., McMahon, T.J., McPherson, R.A., Meijers, F., Mendez-Lorenzo, P., Menges, W., Merritt, F.S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Mohr, W., Montanari, A., Mori, T., Nagai, K., Nakamura, I., Neal, H.A., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Oh, A., Okpara, A., Oreglia, M.J., Orito, S., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poli, B., Polok, J., Pooth, O., Przybycien, M., Quadt, A., Rembser, C., Renkel, P., Rick, H., Rodning, N., Roney, J.M., Rosati, S., Roscoe, K., Rossi, A.M., Rozen, Y., Runge, K., Runolfsson, O., Rust, D.R., Sachs, K., Saeki, T., Sahr, O., Sarkisyan, E.K.G., Sbarra, C., Schaile, A.D., Schaile, O., Scharff-Hansen, P., Schroder, Matthias, Schumacher, M., Schwick, C., Scott, W.G., Seuster, R., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G.P., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Spagnolo, S., Sproston, M., Stahl, A., Stephens, K., Stoll, K., Strom, David M., Strohmer, R., Stumpf, L., Surrow, B., Talbot, S.D., Tarem, S., Taylor, R.J., Teuscher, R., Thiergen, M., Thomas, J., Thomson, M.A., Torrence, E., Towers, S., Toya, D., Trefzger, T., Trigger, I., Trocsanyi, Z., Tsur, E., Turner-Watson, M.F., Ueda, I., Vachon, B., Vannerem, P., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wengler, T., Wermes, N., Wetterling, D., White, J.S., Wilson, G.W., Wilson, J.A., Wyatt, T.R., Yamashita, S., Zacek, V., Zer-Zion, D., G., Abbiendi, K., Ackerstaff, C., Ainsley, P. F., Akesson, G., Alexander, J., Allison, K. J., Anderson, S., Arcelli, S., Asai, S. F., Ashby, D., Axen, G., Azuelo, I., Bailey, A. H., Ball, E., Barberio, R. J., Barlow, S., Baumann, T., Behnke, K. W., Bell, G., Bella, A., Bellerive, G., Benelli, S., Bentvelsen, S., Bethke, O., Biebel, I. J., Bloodworth, O., Boeriu, P., Bock, J., Bohme, D., Bonacorsi, M., Boutemeur, S., Braibant, P., Bright Thoma, L., Brigliadori, R. M., Brown, H. J., Burckhart, J., Cammin, P., Capiluppi, R. K., Carnegie, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, P. E., L., E., Clay, I., Cohen, O. C., Cooke, J., Couchman, C., Couyoumtzeli, R. L., Coxe, A., Csilling, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, A., de Roeck, E., de Wolf, P., Dervan, K., Desch, B., Diene, M. S., Dixit, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, P. G., Estabrook, E., Etzion, F., Fabbri, N., Fanti, L., Feld, P., Ferrari, F., Fiedler, I., Fleck, M., Ford, A., Frey, A., Furtje, D. I., Futyan, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, D., Glenzinski, J., Goldberg, C., Grandi, K., Graham, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, C., Hajdu, G. G., Hanson, M., Hansroul, M., Hapke, K., Harder, A., Harel, M., Harin Dirac, A., Hauke, M., Hauschild, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, J. C., Hill, A., Hocker, K., Hoffman, R. J., Homer, A. K., Honma, D., Horvath, K. R., Hossain, R., Howard, P., Huntemeyer, P., Igo Kemene, K., Ishii, F. R., Jacob, A., Jawahery, H., Jeremie, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, K., Klein, A., Klier, S., Kluth, T., Kobayashi, M., Kobel, T. P., Kokott, S., Komaniya, R. V., Kowalewski, T., Kre, P., Krieger, J., von Krogh, T., Kuhl, M., Kupper, P., Kyberd, L., Levinson, R., Liebisch, J., Lillich, B., List, C., Littlewood, A. W., Lloyd, S. L., Lloyd, F. K., Loebinger, G. D., Long, M. J., Losty, J., Lu, J., Ludwig, A., Macchiolo, A., Macpherson, W., Mader, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Martinez, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, W., Menge, F. S., Merritt, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, W., Mohr, A., Montanari, T., Mori, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, F. G., Oakham, F., Odorici, H. O., Ogren, A., Oh, A., Okpara, M. J., Oreglia, S., Orito, G., Pasztor, J. R., Pater, G. N., Patrick, J., Patt, P., Pfeifenschneider, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, O., Pooth, M., Przybycien, A., Quadt, C., Rembser, P., Renkel, H., Rick, N., Rodning, J. M., Roney, S., Rosati, K., Roscoe, A. M., Rossi, Y., Rozen, K., Runge, O., Runolfssou, D. R., Rust, K., Sach, T., Saeki, O., Sahr, E. K., G., C., Sbarra, A. D., Schaile, O., Schaile, P., Scharff Hansen, M., Schroder, T., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, G. P., Siroli, A., Skuja, A. M., Smith, G. A., Snow, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, M., Sproston, A., Stahl, K., Stephen, K., Stoll, D., Strom, R., Strohmer, L., Stumpf, B., Surrow, S. D., Talbot, S., Tarem, R. J., Taylor, R., Teuscher, M., Thiergen, J., Thoma, M. A., Thomson, E., Torrence, S., Tower, D., Toya, T., Trefzger, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, B., Vachon, P., Vannerem, M., Verzocchi, H., Vo, J., Vossebeld, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, J. S., White, G. W., Wilson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, and D., Zer Zion
Subjects: Coupling, Physics, Particle physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, FOS: Physical sciences, Sigma, Gauge (firearms), Lambda, 01 natural sciences, High Energy Physics - Experiment, Luminosity, Standard Model, High Energy Physics - Experiment (hep-ex), Pair production, 0103 physical sciences, 010306 general physics, Engineering (miscellaneous), Particle Physics - Experiment, Boson
Abstract: Measurements are presented of the polarisation of W+W- boson pairs produced in e+e- collisions, and of CP-violating WWZ and WWGamma trilinear gauge couplings. The data were recorded by the OPAL experiment at LEP during 1998, where a total integrated luminosity of 183 pb^-1 was obtained at a centre-of-mass energy of 189 GeV. The measurements are performed through a spin density matrix analysis of the W boson decay products. The fraction of W bosons produced with longitudinal polarisation was found to be sigma_L/sigma_total = (21.0 +- 3.3 +- 1.6)% where the first error is statistical and the second systematic. The joint W boson pair production fractions were found to be sigma_TT/sigma_total = (78.1 +- 9.0 +- 3.2) %, sigma_LL/sigma_total = (20.1 +- 7.2 +- 1.8) % and sigma_TL/sigma_total = (1.8 +- 14.7 +- 3.8) %. In the CP-violating trilinear gauge coupling sector we find kappa_z = -0.20 +0.10 -0.07, g^z_4 = -0.02 +0.32 -0.33 and lambda_z = -0.18 +0.24 -0.16, where errors include both statistical and systematic uncertainties. In each case the coupling is determined with all other couplings set to their Standard Model values except those related to the measured coupling via SU(2)_LxU(1)_Y symmetry. These results are consistent with Standard Model expectations., Comment: 23 pages, 6 figures, submitted to Eur. Phys. J. C
Published: 2000

21. Two Higgs Doublet Model and Model Independent Interpretation of Neutral Higgs Boson Searches

Author: Abbiendi, G., Ackerstaff, K., Ainsley, C., Akesson, P. F., Alexander, G., Allison, J., Anderson, K. J., Arcelli, S., Asai, S., Ashby, S. F., Axen, D., Azuelos, G., Bailey, I., Ball, A. H., Barberio, E., Barlow, R. J., Baumann, S., Behnke, T., Bell, K. W., Bella, G., Bellerive, A., Benelli, G., Bentvelsen, S., Bethke, S., Biebel, O., Bloodworth, I. J., Boeriu, O., Bock, P., Bohme, J., Bonacorsi, D., Boutemeur, M., Braibant, S., Bright-Thomas, P., Brigliadori, L., Brown, R. M., Burckhart, H. J., Cammin, J., Capiluppi, P., Carnegie, R. K., Carter, A. A., Carter, J. R., Chang, C. Y., Charlton, D. G., Clarke, P. E. L., Clay, E., Cohen, I., Cooke, O. C., Couchman, J., Couyoumtzelis, C., Coxe, R. L., Csilling, A., Cuffiani, M., Dado, S., Dallavalle, G. M., Dallison, S., Roeck, A., Wolf, E., Dervan, P., Desch, K., Dienes, B., Dixit, M. S., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I. P., Estabrooks, P. G., Etzion, E., Fabbri, F., Fanti, M., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Furtjes, A., Futyan, D. I., Gagnon, P., Gary, J. W., Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Glenzinski, D., Goldberg, J., Grandi, C., Graham, K., Gross, E., Grunhaus, J., Gruwe, M., Gunther, P. O., Hajdu, C., Hanson, G. G., Hansroul, M., Hapke, M., Harder, K., Harel, A., Harin-Dirac, M., Hauke, A., Hauschild, M., Hawkes, C. M., Hawkings, R., Hemingway, R. J., Hensel, C., Herten, G., Heuer, R. D., Hill, J. C., Hocker, A., Hoffman, K., Homer, R. J., Honma, A. K., Horvath, D., Hossain, K. R., Howard, R., Huntemeyer, P., Igo-Kemenes, P., Ishii, K., Jacob, F. R., Jawahery, A., Jeremie, H., Jones, C. R., Jovanovic, P., Junk, T. R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Keeler, R. K., Kellogg, R. G., Kennedy, B. W., Kim, D. H., Klein, K., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Kokott, T. P., Komamiya, S., Kowalewski, R. V., Kress, T., Krieger, P., Krogh, J., Kuhl, T., Kupper, M., Kyberd, P., Lafferty, G. D., Landsman, H., Lanske, D., Lawson, I., Layter, J. G., Leins, A., Lellouch, D., Letts, J., Levinson, L., Liebisch, R., Lillich, J., List, B., Littlewood, C., Lloyd, A. W., Lloyd, S. L., Loebinger, F. K., Long, G. D., Losty, M. J., Lu, J., Ludwig, J., Macchiolo, A., Macpherson, A., Mader, W., Marcellini, S., Marchant, T. E., Martin, A. J., Martin, J. P., Martinez, G., Mashimo, T., Mattig, P., Mcdonald, W. J., Mckenna, J., Mcmahon, T. J., Mcpherson, R. A., Meijers, F., Mendez-Lorenzo, P., Menges, W., Merritt, F. S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D. J., Mohr, W., Montanari, A., Mori, T., Nagai, K., Nakamura, I., Neal, H. A., Nisius, R., O Neale, S. W., Oakham, F. G., Odorici, F., Ogren, H. O., Oh, A., Okpara, A., Oreglia, M. J., Orito, S., Pasztor, G., Pater, J. R., Patrick, G. N., Patt, J., Pfeifenschneider, P., Pilcher, J. E., Pinfold, J., Plane, D. E., Poli, B., Polok, J., Pooth, O., Przybycien, M., Quadt, A., Rembser, C., Renkel, P., Rick, H., Rodning, N., Roney, J. M., Rosati, S., Roscoe, K., Rossi, A. M., Rozen, Y., Runge, K., Runolfsson, O., Rust, D. R., Sachs, K., Saeki, T., Sahr, O., Sarkisyan, E. K. G., Sbarra, C., Schaile, A. D., Schaile, O., Scharff-Hansen, P., Schroder, M., Schumacher, M., Schwick, C., Scott, W. G., Seuster, R., Shears, T. G., Shen, B. C., Shepherd-Themistocleous, C. H., Sherwood, P., Siroli, G. P., Skuja, A., Smith, A. M., Snow, G. A., Sobie, R., Soldner-Rembold, S., stefania spagnolo, Sproston, M., Stahl, A., Stephens, K., Stoll, K., Strom, D., Strohmer, R., Stumpf, L., Surrow, B., Talbot, S. D., Tarem, S., Taylor, R. J., Teuscher, R., Thiergen, M., Thomas, J., Thomson, M. A., Torrence, E., Towers, S., Toya, D., Trefzger, T., Trigger, I., Trocsanyi, Z., Tsur, E., Turner-Watson, M. F., Ueda, I., Vachon, B., Vannerem, P., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C. P., Ward, D. R., Watkins, P. M., Watson, A. T., Watson, N. K., Wells, P. S., Wengler, T., Wermes, N., Wetterling, D., White, J. S., Wilson, G. W., Wilson, J. A., Wyatt, T. R., Yamashita, S., Zacek, V., Zer-Zion, D., Opal Collaboration, G., Abbiendi, K., Ackerstaff, C., Ainsley, P. F., Akesson, G., Alexander, J., Allison, K. J., Anderson, S., Arcelli, S., Asai, S. F., Ashby, D., Axen, G., Azuelo, I., Bailey, A. H., Ball, E., Barberio, R. J., Barlow, S., Baumann, T., Behnke, K. W., Bell, G., Bella, A., Bellerive, G., Benelli, S., Bentvelsen, S., Bethke, O., Biebel, I. J., Bloodworth, O., Boeriu, P., Bock, J., Bohme, D., Bonacorsi, M., Boutemeur, S., Braibant, P., Bright Thoma, L., Brigliadori, R. M., Brown, H. J., Burckhart, J., Cammin, P., Capiluppi, R. K., Carnegie, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, P. E., L., E., Clay, I., Cohen, O. C., Cooke, J., Couchman, C., Couyoumtzeli, R. L., Coxe, A., Csilling, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, A., de Roeck, E., de Wolf, P., Dervan, K., Desch, B., Diene, M. S., Dixit, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, P. G., Estabrook, E., Etzion, F., Fabbri, M., Fanti, L., Feld, P., Ferrari, F., Fiedler, I., Fleck, M., Ford, A., Frey, A., Furtje, D. I., Futyan, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, D., Glenzinski, J., Goldberg, C., Grandi, K., Graham, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, C., Hajdu, G. G., Hanson, M., Hansroul, M., Hapke, K., Harder, A., Harel, M., Harin Dirac, A., Hauke, M., Hauschild, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, J. C., Hill, A., Hocker, K., Hoffman, R. J., Homer, A. K., Honma, D., Horvath, K. R., Hossain, R., Howard, P., Huntemeyer, P., Igo Kemene, K., Ishii, F. R., Jacob, A., Jawahery, H., Jeremie, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, K., Klein, A., Klier, S., Kluth, T., Kobayashi, M., Kobel, T. P., Kokott, S., Komamiya, R. V., Kowalewski, T., Kre, P., Krieger, J., von Krogh, T., Kuhl, M., Kupper, P., Kyberd, G. D., Lafferty, H., Landsman, D., Lanske, I., Lawson, J. G., Layter, A., Lein, D., Lellouch, J., Lett, L., Levinson, R., Liebisch, J., Lillich, B., List, C., Littlewood, A. W., Lloyd, S. L., Lloyd, F. K., Loebinger, G. D., Long, M. J., Losty, J., Lu, J., Ludwig, A., Macchiolo, A., Macpherson, W., Mader, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Martinez, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, W., Menge, F. S., Merritt, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, W., Mohr, A., Montanari, T., Mori, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, F. G., Oakham, F., Odorici, H. O., Ogren, A., Oh, A., Okpara, M. J., Oreglia, S., Orito, G., Pasztor, J. R., Pater, G. N., Patrick, J., Patt, P., Pfeifenschneider, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, O., Pooth, M., Przybycien, A., Quadt, C., Rembser, P., Renkel, H., Rick, N., Rodning, J. M., Roney, S., Rosati, K., Roscoe, A. M., Rossi, Y., Rozen, K., Runge, O., Runolfsson, D. R., Rust, K., Sach, T., Saeki, O., Sahr, E. K., G., C., Sbarra, A. D., Schaile, O., Schaile, P., Scharff Hansen, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, G. P., Siroli, A., Skuja, A. M., Smith, G. A., Snow, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, M., Sproston, A., Stahl, K., Stephen, K., Stoll, D., Strom, R., Strohmer, L., Stumpf, B., Surrow, S. D., Talbot, S., Tarem, R. J., Taylor, R., Teuscher, M., Thiergen, J., Thoma, M. A., Thomson, E., Torrence, S., Tower, D., Toya, T., Trefzger, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, B., Vachon, P., Vannerem, M., Verzocchi, H., Vo, J., Vossebeld, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, J. S., White, G. W., Wilson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, and D., Zer Zion
Subjects: Quark, Physics, Particle physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, High Energy Physics::Lattice, High Energy Physics::Phenomenology, FOS: Physical sciences, Parameter space, 01 natural sciences, Higgs sector, Interpretation (model theory), Gluon, High Energy Physics - Experiment, Two-Higgs-doublet model, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Higgs boson, High Energy Physics::Experiment, 010306 general physics, Engineering (miscellaneous), Particle Physics - Experiment, Boson
Abstract: Searches for the neutral Higgs bosons h0 and A0, are used to obtain limits on the Type II Two Higgs Doublet Model (2HDM(II)) with no CP-violation in the Higgs sector and no additional particles besides the five Higgs bosons. The analysis combines approximately 170 pb-1 of data collected with the OPAL detector at sqrt{s} ~ 189 GeV with previous runs at sqrt{s} ~ mZ and sqrt{s} ~ 183 GeV. The searches are sensitive to the h0, A0 -> qq, gg, tau+tau- and h0 -> A0A0 decay modes of the Higgs bosons. For the first time, the 2HDM(II) parameter space is explored in a detailed scan, and new flavour independent analyses are applied to examine regions in which the neutral Higgs bosons decay predominantly into light quarks or gluons. Model-independent limits are also given., 36 pages, 17 figures, submitted to Eur. Phys. J. C
Published: 2000

22. Measurement of the Low-x Behaviour of the Photon Structure Function F2-gamma

Author: Abbiendi, G., Ackerstaff, K., Ainsley, C., Akesson, P.F., Alexander, G., Allison, John, Anderson, K.J., Arcelli, S., Asai, S., Ashby, S.F., Axen, D., Azuelos, G., Bailey, I., Ball, A.H., Barberio, E., Barlow, Roger J., Baumann, S., Bechtluft, J., Behnke, T., Bell, Kenneth Watson, Bella, G., Bellerive, A., Bentvelsen, S., Bethke, S., Biebel, O., Bloodworth, I.J., Bock, P., Bohme, J., Boeriu, O., Bonacorsi, D., Boutemeur, M., Braibant, S., Bright-Thomas, P., Brigliadori, L., Brown, Robert M., Burckhart, H.J., Cammin, J., Capiluppi, P., Carnegie, R.K., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Ciocca, C., Clarke, P.E.L., Clay, E., Cohen, I., Cooke, O.C., Couchman, J., Couyoumtzelis, C., Coxe, R.L., Cuffiani, M., Dado, S., Dallavalle, G.Marco, Dallison, S., de Roeck, A., Dervan, P., Desch, K., Dienes, B., Dixit, M.S., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Estabrooks, P.G., Etzion, E., Fabbri, F., Fanti, M., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Glenzinski, D., Goldberg, J., Grandi, C., Graham, K., Gross, E., Grunhaus, J., Gruwe, M., Gunther, P.O., Hajdu, C., Hanson, G.G., Hansroul, M., Hapke, M., Harder, K., Harel, A., Hargrove, C.K., Harin-Dirac, M., Hauke, A., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Hensel, C., Herten, G., Heuer, R.D., Hildreth, M.D., Hill, J.C., Hocker, James Andrew, Hoffman, Kara Dion, Homer, R.J., Honma, A.K., Horvath, D., Hossain, K.R., Howard, R., Huntemeyer, P., Igo-Kemenes, P., Ishii, K., Jacob, F.R., Jawahery, A., Jeremie, H., Jones, C.R., Jovanovic, P., Junk, T.R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kim, D.H., Klein, K., Klier, A., Kobayashi, T., Kobel, M., Kokott, T.P., Komamiya, S., Kowalewski, Robert V., Kress, T., Krieger, P., von Krogh, J., Kuhl, T., Kupper, M., Kyberd, P., Lafferty, G.D., Landsman, H., Lanske, D., Lauber, J., Lawson, I., Layter, J.G., Leins, A., Lellouch, D., Letts, J., Levinson, L., Liebisch, R., Lillich, J., List, B., Littlewood, C., Lloyd, A.W., Lloyd, S.L., Loebinger, F.K., Long, G.D., Losty, M.J., Lu, J., Ludwig, J., Macchiolo, A., Macpherson, A., Mader, W., Mannelli, M., Marcellini, S., Marchant, T.E., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., McMahon, T.J., McPherson, R.A., Meijers, F., Mendez-Lorenzo, P., Merritt, F.S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Mohr, W., Montanari, A., Mori, T., Nagai, K., Nakamura, I., Neal, H.A., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Oh, A., Okpara, A., Oreglia, M.J., Orito, S., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poli, B., Polok, J., Pooth, O., Przybycien, M., Quadt, A., Rembser, C., Rick, H., Robins, S.A., Rodning, N., Roney, J.M., Rosati, S., Roscoe, K., Rossi, A.M., Rozen, Y., Runge, K., Runolfsson, O., Rust, D.R., Sachs, K., Saeki, T., Sahr, O., Sarkisyan, E.K.G., Sbarra, C., Schaile, A.D., Schaile, O., Scharff-Hansen, P., Schmitt, S., Schroder, Matthias, Schumacher, M., Schwick, C., Scott, W.G., Seuster, R., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G.P., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Spagnolo, S., Sproston, M., Stahl, A., Stephens, K., Stoll, K., Strom, David M., Strohmer, R., Surrow, B., Talbot, S.D., Tarem, S., Taylor, R.J., Teuscher, R., Thiergen, M., Thomas, J., Thomson, M.A., Torrence, E., Towers, S., Trefzger, T., Trigger, I., Trocsanyi, Z., Tsur, E., Turner-Watson, M.F., Ueda, I., Vannerem, P., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C.P., Ward, D.R., Ward, J.J., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wengler, T., Wermes, N., Wetterling, D., White, J.S., Wilson, G.W., Wilson, J.A., Wyatt, T.R., Yamashita, S., Zacek, V., Zer-Zion, D., G., Abbiendi, K., Ackerstaff, C., Ainsley, P. F., Akesson, G., Alexander, J., Allison, K. J., Anderson, S., Arcelli, S., Asai, S. F., Ashby, D., Axen, G., Azuelo, I., Bailey, A. H., Ball, E., Barberio, R. J., Barlow, S., Baumann, J., Bechtluft, T., Behnke, K. W., Bell, G., Bella, A., Bellerive, S., Bentvelsen, S., Bethke, O., Biebel, I. J., Bloodworth, P., Bock, J., Bohme, O., Boeriu, D., Bonacorsi, M., Boutemeur, S., Braibant, P., Bright Thoma, L., Brigliadori, R. M., Brown, H. J., Burckhart, J., Cammin, P., Capiluppi, R. K., Carnegie, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, C., Ciocca, P. E., L., E., Clay, I., Cohen, O. C., Cooke, J., Couchman, C., Couyoumtzeli, R. L., Coxe, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, A., de Roeck, P., Dervan, K., Desch, B., Diene, M. S., Dixit, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, P. G., Estabrook, E., Etzion, F., Fabbri, M., Fanti, L., Feld, P., Ferrari, F., Fiedler, L., Fleck, M., Ford, A., Frey, A., Furtje, D. I., Futyan, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, D., Glenzinski, J., Goldberg, C., Grandi, K., Graham, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, C., Hajdu, G. G., Hanson, M., Hansroul, M., Hapke, K., Harder, A., Harel, C. K., Hargrove, M., Harin Dirac, A., Hauke, M., Hauschild, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, M. D., Hildreth, J. C., Hill, A., Hocker, K., Hoffman, R. J., Homer, A. K., Honma, D., Horvath, K. R., Hossain, R., Howard, P., Huntemeyer, P., Igo Kemene, K., Ishii, F. R., Jacob, A., Jawahery, H., Jeremie, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, K., Klein, A., Klier, T., Kobayashi, M., Kobel, T. P., Kokott, S., Komamiya, R. V., Kowalewski, T., Kre, P., Krieger, J., von Krogh, T., Kuhl, M., Kupper, P., Kyberd, G. D., Lafferty, H., Landsman, D., Lanske, J., Lauber, I., Lawson, J. G., Layter, A., Lein, D., Lellouch, J., Lett, L., Levinson, R., Liebisch, J., Lillich, B., List, C., Littlewood, A. W., Lloyd, S. L., Lloyd, F. K., Loebinger, G. D., Long, M. J., Losty, J., Lu, J., Ludwig, A., Macchiolo, A., Macpherson, W., Mader, M., Mannelli, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Martinez, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, F. S., Merritt, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, W., Mohr, A., Montanari, T., Mori, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, F. G., Oakham, F., Odorici, H. O., Ogren, A., Oh, A., Okpara, M. J., Oreglia, S., Orito, G., Pasztor, J. R., Pater, G. N., Patrick, J., Patt, P., Pfeifenschneider, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, O., Pooth, M., Przybycien, A., Quadt, C., Rembser, H., Rick, S. A., Robin, N., Rodning, J. M., Roney, S., Rosati, K., Roscoe, A. M., Rossi, Y., Rozen, K., Runge, O., Runolfsson, D. R., Rust, K., Sach, T., Saeki, O., Sahr, E. K., G., C., Sbarra, A. D., Schaile, O., Schaile, P., Scharff Hansen, S., Schmitt, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, G. P., Siroli, A., Skuja, A. M., Smith, G. A., Snow, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, M., Sproston, A., Stahl, K., Stephen, K., Stoll, D., Strom, R., Strohmer, B., Surrow, S. D., Talbot, S., Tarem, R. J., Taylor, R., Teuscher, M., Thiergen, J., Thoma, M. A., Thomson, E., Torrence, S., Tower, T., Trefzger, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, P., Vannerem, M., Verzocchi, H., Vo, J., Vossebeld, D., Waller, C. P., Ward, D. R., Ward, J. J., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, J. S., White, G. W., Wilson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, and D., Zer Zion
Subjects: Physics, Nuclear physics, Systematic error, High Energy Physics - Experiment (hep-ex), Particle physics, Physics and Astronomy (miscellaneous), Detector, Monte Carlo method, FOS: Physical sciences, Engineering (miscellaneous), Particle Physics - Experiment, Photon structure function, High Energy Physics - Experiment
Abstract: The photon structure function F2-gamma(x,Q**2) has been measured using data taken by the OPAL detector at centre-of-mass energies of 91Gev, 183Gev and 189Gev, in Q**2 ranges of 1.5 to 30.0 GeV**2 (LEP1), and 7.0 to 30.0 GeV**2 (LEP2), probing lower values of x than ever before. Since previous OPAL analyses, new Monte Carlo models and new methods, such as multi-variable unfolding, have been introduced, reducing significantly the model dependent systematic errors in the measurement., 49 pages, 21 figures, submitted to Eur. Phys. J. C
Published: 2000

23. QCD studies with e+e- annihilation data at 172-189 GeV

Author: Abbiendi, G., Ackerstaff, K., Akesson, P.F., Alexander, G., Allison, John, Anderson, K.J., Arcelli, S., Asai, S., Ashby, S.F., Axen, D., Azuelos, G., Bailey, I., Ball, A.H., Barberio, E., Barlow, Roger J., Batley, J.R., Baumann, S., Behnke, T., Bell, Kenneth Watson, Bella, G., Bellerive, A., Bentvelsen, S., Bethke, S., Biebel, O., Biguzzi, A., Bloodworth, I.J., Bock, P., Bohme, J., Boeriu, O., Bonacorsi, D., Boutemeur, M., Braibant, S., Bright-Thomas, P., Brigliadori, L., Brown, Robert M., Burckhart, H.J., Cammin, J., Capiluppi, P., Carnegie, R.K., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Chrisman, D., Ciocca, C., Clarke, P.E.L., Clay, E., Cohen, I., Cooke, O.C., Couchman, J., Couyoumtzelis, C., Coxe, R.L., Cuffiani, M., Dado, S., Dallavalle, G.Marco, Dallison, S., Davis, R., de Roeck, A., Dervan, P., Desch, K., Dienes, B., Dixit, M.S., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Estabrooks, P.G., Etzion, E., Fabbri, F., Fanfani, A., Fanti, M., Faust, A.A., Feld, L., Ferrari, P., Fiedler, F., Fierro, M., Fleck, I., Frey, A., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Gingrich, D.M., Glenzinski, D., Goldberg, J., Gorn, W., Grandi, C., Graham, K., Gross, E., Grunhaus, J., Gruwe, M., Gunther, P.O., Hajdu, C., Hanson, G.G., Hansroul, M., Hapke, M., Harder, K., Harel, A., Hargrove, C.K., Harin-Dirac, M., Hauke, A., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Hensel, C., Herten, G., Heuer, R.D., Hildreth, M.D., Hill, J.C., Hobson, P.R., Hocker, James Andrew, Hoffman, Kara Dion, Homer, R.J., Honma, A.K., Horvath, D., Hossain, K.R., Howard, R., Huntemeyer, P., Igo-Kemenes, P., Imrie, D.C., Ishii, K., Jacob, F.R., Jawahery, A., Jeremie, H., Jimack, M., Jones, C.R., Jovanovic, P., Junk, T.R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Kayal, P.I., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kim, D.H., Klein, K., Klier, A., Kobayashi, T., Kobel, M., Kokott, T.P., Kolrep, M., Komamiya, S., Kowalewski, Robert V., Kress, T., Krieger, P., von Krogh, J., Kuhl, T., Kupper, M., Kyberd, P., Lafferty, G.D., Landsman, H., Lanske, D., Lawson, I., Layter, J.G., Leins, A., Lellouch, D., Letts, J., Levinson, L., Liebisch, R., Lillich, J., List, B., Littlewood, C., Lloyd, A.W., Lloyd, S.L., Loebinger, F.K., Long, G.D., Losty, M.J., Lu, J., Ludwig, J., Macchiolo, A., Macpherson, A., Mader, W., Mannelli, M., Marcellini, S., Marchant, T.E., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., McMahon, T.J., McPherson, R.A., Meijers, F., Mendez-Lorenzo, P., Merritt, F.S., Mes, H., Meyer, I., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Mohr, W., Montanari, A., Mori, T., Nagai, K., Nakamura, I., Neal, H.A., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Okpara, A., Oreglia, M.J., Orito, S., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Perez-Ochoa, R., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poli, B., Polok, J., Przybycien, M., Quadt, A., Rembser, C., Rick, H., Robins, S.A., Rodning, N., Roney, J.M., Rosati, S., Roscoe, K., Rossi, A.M., Rozen, Y., Runge, K., Runolfsson, O., Rust, D.R., Sachs, K., Saeki, T., Sahr, O., Sang, W.M., Sarkisian, E.K.G., Sbarra, C., Schaile, A.D., Schaile, O., Scharff-Hansen, P., Schmitt, S., Schoning, A., Schroder, Matthias, Schumacher, M., Schwick, C., Scott, W.G., Seuster, R., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G.P., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Spagnolo, S., Sproston, M., Stahl, A., Stephens, K., Stoll, K., Strom, David M., Strohmer, R., Surrow, B., Talbot, S.D., Tarem, S., Taylor, R.J., Teuscher, R., Thiergen, M., Thomas, J., Thomson, M.A., Torrence, E., Towers, S., Trefzger, T., Trigger, I., Trocsanyi, Z., Tsur, E., Turner-Watson, M.F., Ueda, I., Van Kooten, Rick J., Vannerem, P., Verzocchi, M., Voss, H., Waller, D., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wengler, T., Wermes, N., Wetterling, D., White, J.S., Wilson, G.W., Wilson, J.A., Wyatt, T.R., Yamashita, S., Zacek, V., Zer-Zion, D., G., Abbiendi, K., Ackerstaff, P. F., Akesson, G., Alexander, J., Allison, K. J., Anderson, S., Arcelli, S., Asai, S. F., Ashby, D., Axen, G., Azuelo, I., Bailey, A. H., Ball, E., Barberio, R. J., Barlow, J. R., Batley, S., Baumann, T., Behnke, K. W., Bell, G., Bella, A., Bellerive, S., Bentvelsen, S., Bethke, O., Biebel, A., Biguzzi, I. J., Bloodworth, P., Bock, J., Bohme, O., Boeriu, D., Bonacrosi, M., Boutemeur, S., Braibant, P., Bright Thoma, L., Brigliadori, R. M., Brown, H. J., Burckhart, J., Cammin, P., Capiluppi, R. K., Carnegie, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, D., Chrisman, C., Ciocca, P. E., L., E., Clay, I., Cohen, O. C., Cooke, J., Couchman, C., Couyoumtzeli, R. L., Coxe, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, R., Davi, A., de Roeck, P., Dervan, K., Desch, B., Diene, M. S., Dixit, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, P. G., Estabrook, E., Etzion, F., Fabbri, A., Fanfani, M., Fanti, A. A., Faust, L., Feld, P., Ferrari, F., Fiedler, M., Fierro, I., Fleck, A., Frey, A., Furtje, D. I., Futyan, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, D. M., Gingrich, D., Glenzinski, J., Goldberg, W., Gorn, C., Grandi, K., Graham, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, C., Hajdu, G. G., Hanson, M., Hansroul, M., Hapke, K., Harder, A., Harel, C. K., Hargrove, M., Harin Dirac, A., Hauke, M., Hauschild, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, M. D., Hildreth, J. C., Hill, P. R., Hobson, A., Hocker, K., Hoffman, R. J., Homer, A. K., Honma, D., Horvath, K. R., Hossain, R., Howard, P., Huntemeyer, P., Igo Kemene, D. C., Imrie, K., Ishii, F. R., Jacob, A., Jawahery, H., Jeremie, M., Jimack, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, P. I., Kayal, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, K., Klein, A., Klier, T., Kobayashi, M., Kobel, T. P., Kokott, M., Kolrep, S., Komamiya, R. V., Kowalewski, T., Kre, P., Krieger, J., von Krogh, T., Kuhl, M., Kupper, P., Kyberd, G. D., Lafferty, H., Landsman, D., Lanske, I., Lawson, J. G., Layter, A., Lein, D., Lellouch, J., Lett, L., Levinson, R., Liebisch, J., Lillich, B., List, C., Littlewood, A. W., Lloyd, S. L., Lloyd, F. K., Loebinger, G. D., Long, M. J., Losty, J., Lu, J., Ludwig, A., Macchiolo, A., Macpherson, W., Mader, M., Mannelli, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Martinez, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, F. S., Merritt, H., Me, I., Meyer, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, W., Mohr, A., Montanari, T., Mori, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, F. G., Oakham, F., Odorici, H. O., Ogren, A., Okpara, M. J., Oreglia, S., Orito, G., Pasztor, J. R., Pater, G. N., Patrick, J., Patt, R., Perez Ochoa, P., Pfeifenschneider, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, M., Przybycien, A., Quadt, C., Rembser, H., Rick, S. A., Robin, N., Rodning, J. M., Roney, S., Rosati, K., Roscoe, A. M., Rossi, Y., Rozen, K., Runge, O., Runolfsson, D. R., Rust, K., Sach, T., Saeki, O., Sahr, W. M., Sang, E. K., G., C., Sbarra, A. D., Schaile, O., Schaile, P., Scharff Hansen, S., Schmitt, A., Schoning, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, G. P., Siroli, A., Skuja, A. M., Smith, G. A., Snow, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, M., Sproston, A., Stahl, K., Stephen, K., Stoll, D., Strom, R., Strohmer, B., Surrow, S. D., Talbot, S., Tarem, R. J., Taylor, R., Teuscher, M., Thiergen, J., Thoma, M. A., Thomson, E., Torrence, S., Tower, T., Trefzger, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, R., Van Kooten, P., Vannerem, M., Verzocchi, H., Vo, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, J. S., White, G. W., Wilson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, and D., Zer Zion
Subjects: Quantum chromodynamics, Physics, Particle physics, Annihilation, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Hadron, Monte Carlo method, FOS: Physical sciences, 01 natural sciences, Charged particle, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Strong coupling, High Energy Physics::Experiment, Multiplicity (chemistry), 010306 general physics, Engineering (miscellaneous), Particle Physics - Experiment
Abstract: We have studied hadronic events from e+e- annihilation data at centre-of-mass energies of sqrt{s}=172, 183 and 189 GeV. The total integrated luminosity of the three samples, measured with the OPAL detector, corresponds to 250 pb^-1. We present distributions of event shape variables, charged particle multiplicity and momentum, measured separately in the three data samples. From these we extract measurements of the strong coupling alpha_s, the mean charged particle multiplicity and the peak position xi_0 in the xi_p=ln(1/x_p) distribution. In general the data are described well by analytic QCD calculations and Monte Carlo models. Our measured values of alpha_s, and xi_0 are consistent with previous determinations at sqrt{s}=MZ., Comment: 49 pages, 13 figures, submitted to Eur. Phys. J. C
Published: 2000

24. QCD Analyses and determinations of alpha-s in e+e- Annihilation at energies between 35 and 189 GeV

Author: P. Pfeifenschneider, O. Biebel, P. A. MovillaFernandez, G. Abbiendi, K. Ackerstaff, P. F. Akesson, G. Alexander, J. Allison, K. J. Anderson, S. Arcelli, S. Asai, S. F. Ashby, D. Axen, G. Azuelos, I. Bailey, A. H. Ball, E. Barberio, R. J. Barlow, J. R. Batley, S. Baumann, T. Behnke, K. W. Bell, G. Bella, A. Bellerive, S. Bentvelsen, S. Bethke, A. Biguzzi, I. J. Bloodworth, P. Bock, J. Bohme, O. Boeriu, D. Bonacorsi, M. Boutemeur, S. Braibant, P. Bright Thomas, L. Brigliadori, R. M. Brown, H. J. Burckhart, J. Cammin, P. Capiluppi, R. K. Carnegie, A. A. Carter, J. R. Carter, C. Y. Chang, D. G. Charlton, D. Chrisman, C. Ciocca, P. E. L., E. Clay, I. Cohen, O. C. Cooke, J. Couchman, C. Couyoumtzelis, R. L. Coxe, M. Cuffiani, S. Dado, G. M. Dallavalle, S. Dallison, R. Davis, A. de Roeck, P. Dervan, K. Desch, B. Dienes, M. S. Dixit, M. Donkers, J. Dubbert, E. Duchovni, G. Duckeck, I. P. Duerdoth, P. G. Estabrooks, E. Etzion, F. Fabbri, A. Fanfani, M. Fanti, A. A. Faust, L. Feld, P. Ferrari, F. Fiedler, M. Fierro, I. Fleck, A. Frey, A. Furtjes, D. I. Futyan, P. Gagnon, J. W. Gary, G. Gaycken, C. Geich Gimbel, G. Giacomelli, P. Giacomelli, D. M. Gingrich, D. Glenzinski, J. Goldberg, M. Gorn, C. Grandi, K. Graham, E. Gross, J. Grunhaus, M. Gruwe, P. O. Gunther, C. Hajdu, G. G. Hanson, M. Hansroul, M. Hapke, K. Harder, A. Harel, C. K. Hargrove, M. Harin Dirac, A. Hauke, M. Hauschild, C. M. Hawkes, R. Hawkings, R. J. Hemingway, C. Hensel, G. Herten, R. D. Heuer, M. D. Hildreth, J. C. Hill, P. R. Hobson, A. Hocker, K. Hoffman, R. J. Homer, A. K. Honma, D. Horvath, K. R. Hossain, R. Howard, P. Huntemeyer, P. Igo Kemenes, D. C. Imrie, K. Ishii, F. R. Jacob, A. Jawahery, H. Jeremie, M. Jimack, C. R. Jones, P. Jovanovic, T. R. Junk, N. Kanaya, J. Kanzaki, G. Karapetian, D. Karlen, V. Kartvelishvili, K. Kawagoe, T. Kawamoto, P. I. Kayal, R. K. Keeler, R. G. Kellogg, B. W. Kennedy, D. H. Kim, A. Klier, T. Kobayashi, M. Kobel, T. P. Kokott, M. Kolrep, S. Komamiya, R. V. Kowalewski, T. Kress, P. Krieger, J. von Krogh, T. Kuhl, M. Kupper, P. Kyberd, G. D. Lafferty, H. Landsman, D. Lanske, I. Lawson, J. G. Layter, A. Leins, D. Lellouch, J. Letts, L. Levinson, R. Liebisch, J. Lillich, B. List, C. Littlewood, A. W. Lloyd, S. L. Lloyd, F. K. Loebinger, G. D. Long, M. J. Losty, J. Lu, J. Ludwig, A. Macchiolo, A. Macpherson, W. Mader, M. Mannelli, S. Marcellini, T. E. Marchant, A. J. Martin, J. P. Martin, G. Martinez, T. Mashimo, P. Mattig, W. J. McDonald, J. McKenna, T. J. McMahon, R. A. McPherson, F. Meijers, P. Mendez Lorenzo, F. S. Merritt, H. Mes, I. Meyer, A. Michelini, S. Mihara, G. Mikenberg, D. J. Miller, W. Mohr, A. Montanari, T. Mori, K. Nagai, I. Nakamura, H. A. Neal, R. Nisius, S. W. O'Neale, F. G. Oakham, F. Odorici, H. O. Ogren, A. Okpara, M. J. Oreglia, S. Orito, G. Pasztor, J. R. Pater, G. N. Patrick, J. Patt, R. Perez Ochoa, J. E. Pilcher, J. Pinfold, D. E. Plane, B. Poli, J. Polok, M. Przybycien, A. Quadt, C. Rembser, H. Rick, S. A. Robins, N. Rodning, J. M. Roney, S. Rosati, K. Roscoe, A. M. Rossi, Y. Rozen, K. Runge, O. Runolfsson, D. R. Rust, K. Sachs, T. Saeki, O. Sahr, W. M. Sang, E. K. G., C. Sbarra, A. D. Schaile, O. Schaile, P. Scharff Hansen, J. Schieck, S. Schmitt, A. Schoning, M. Schroder, M. Schumacher, C. Schwick, W. G. Scott, R. Seuster, T. G. Shears, B. C. Shen, C. H. Shepherd Themistocleous, P. Sherwood, G. P. Siroli, A. Skuja, A. M. Smith, G. A. Snow, R. Sobie, S. Soldner Rembold, M. Sproston, A. Stahl, K. Stephens, K. Stoll, D. Strom, R. Strohmer, B. Surrow, S. D. Talbot, S. Tarem, R. J. Taylor, R. Teuscher, M. Thiergen, J. Thomas, M. A. Thomson, E. Torrence, S. Towers, T. Trefzger, I. Trigger, Z. Trocsanyi, E. Tsur, M. F. Turner Watson, I. Ueda, R. Van Kooten, P. Vannerem, M. Verzocchi, H. Voss, D. Waller, C. P. Ward, D. R. Ward, P. M. Watkins, A. T. Watson, N. K. Watson, P. S. Wells, T. Wengler, N. Wermes, D. Wetterling, J. S. White, G. W. Willson, J. A. Wilson, T. R. Wyatt, S. Yamashita, V. Zacek, D. Zer Zion, SPAGNOLO, Stefania Antonia, P., Pfeifenschneider, O., Biebel, P. A., Movillafernandez, G., Abbiendi, K., Ackerstaff, P. F., Akesson, G., Alexander, J., Allison, K. J., Anderson, S., Arcelli, S., Asai, S. F., Ashby, D., Axen, G., Azuelo, I., Bailey, A. H., Ball, E., Barberio, R. J., Barlow, J. R., Batley, S., Baumann, T., Behnke, K. W., Bell, G., Bella, A., Bellerive, S., Bentvelsen, S., Bethke, A., Biguzzi, I. J., Bloodworth, P., Bock, J., Bohme, O., Boeriu, D., Bonacorsi, M., Boutemeur, S., Braibant, P., Bright Thoma, L., Brigliadori, R. M., Brown, H. J., Burckhart, J., Cammin, P., Capiluppi, R. K., Carnegie, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, D., Chrisman, C., Ciocca, P. E., L., E., Clay, I., Cohen, O. C., Cooke, J., Couchman, C., Couyoumtzeli, R. L., Coxe, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, R., Davi, A., de Roeck, P., Dervan, K., Desch, B., Diene, M. S., Dixit, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, P. G., Estabrook, E., Etzion, F., Fabbri, A., Fanfani, M., Fanti, A. A., Faust, L., Feld, P., Ferrari, F., Fiedler, M., Fierro, I., Fleck, A., Frey, A., Furtje, D. I., Futyan, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, D. M., Gingrich, D., Glenzinski, J., Goldberg, M., Gorn, C., Grandi, K., Graham, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, C., Hajdu, G. G., Hanson, M., Hansroul, M., Hapke, K., Harder, A., Harel, C. K., Hargrove, M., Harin Dirac, A., Hauke, M., Hauschild, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, M. D., Hildreth, J. C., Hill, P. R., Hobson, A., Hocker, K., Hoffman, R. J., Homer, A. K., Honma, D., Horvath, K. R., Hossain, R., Howard, P., Huntemeyer, P., Igo Kemene, D. C., Imrie, K., Ishii, F. R., Jacob, A., Jawahery, H., Jeremie, M., Jimack, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, P. I., Kayal, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, A., Klier, T., Kobayashi, M., Kobel, T. P., Kokott, M., Kolrep, S., Komamiya, R. V., Kowalewski, T., Kre, P., Krieger, J., von Krogh, T., Kuhl, M., Kupper, P., Kyberd, G. D., Lafferty, H., Landsman, D., Lanske, I., Lawson, J. G., Layter, A., Lein, D., Lellouch, J., Lett, L., Levinson, R., Liebisch, J., Lillich, B., List, C., Littlewood, A. W., Lloyd, S. L., Lloyd, F. K., Loebinger, G. D., Long, M. J., Losty, J., Lu, J., Ludwig, A., Macchiolo, A., Macpherson, W., Mader, M., Mannelli, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Martinez, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, F. S., Merritt, H., Me, I., Meyer, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, W., Mohr, A., Montanari, T., Mori, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, F. G., Oakham, F., Odorici, H. O., Ogren, A., Okpara, M. J., Oreglia, S., Orito, G., Pasztor, J. R., Pater, G. N., Patrick, J., Patt, R., Perez Ochoa, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, M., Przybycien, A., Quadt, C., Rembser, H., Rick, S. A., Robin, N., Rodning, J. M., Roney, S., Rosati, K., Roscoe, A. M., Rossi, Y., Rozen, K., Runge, O., Runolfsson, D. R., Rust, K., Sach, T., Saeki, O., Sahr, W. M., Sang, E. K., G., C., Sbarra, A. D., Schaile, O., Schaile, P., Scharff Hansen, J., Schieck, S., Schmitt, A., Schoning, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, G. P., Siroli, A., Skuja, A. M., Smith, G. A., Snow, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, M., Sproston, A., Stahl, K., Stephen, K., Stoll, D., Strom, R., Strohmer, B., Surrow, S. D., Talbot, S., Tarem, R. J., Taylor, R., Teuscher, M., Thiergen, J., Thoma, M. A., Thomson, E., Torrence, S., Tower, T., Trefzger, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, R., Van Kooten, P., Vannerem, M., Verzocchi, H., Vo, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, J. S., White, G. W., Willson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, and D., Zer Zion
Subjects: Quantum chromodynamics, Physics, Particle physics, Annihilation, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Hadron, Monte Carlo method, High Energy Physics::Phenomenology, FOS: Physical sciences, Jet (particle physics), 01 natural sciences, JADE (particle detector), High Energy Physics - Experiment, Renormalization, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Engineering (miscellaneous), Energy (signal processing), Particle Physics - Experiment
Abstract: We employ data taken by the JADE and OPAL experiments for an integrated QCD study in hadronic e+e- annihilations at c.m.s. energies ranging from 35 GeV through 189 GeV. The study is based on jet-multiplicity related observables. The observables are obtained to high jet resolution scales with the JADE, Durham, Cambridge and cone jet finders, and compared with the predictions of various QCD and Monte Carlo models. The strong coupling strength, alpha_s, is determined at each energy by fits of O(alpha_s^2) calculations, as well as matched O(alpha_s^2) and NLLA predictions, to the data. Matching schemes are compared, and the dependence of the results on the choice of the renormalization scale is investigated. The combination of the results using matched predictions gives alpha_s(MZ)=0.1187+{0.0034}-{0.0019}. The strong coupling is also obtained, at lower precision, from O(alpha_s^2) fits of the c.m.s. energy evolution of some of the observables. A qualitative comparison is made between the data and a recent MLLA prediction for mean jet multiplicities., 49 pages, 17 figures, submitted to Eur.Phys.J. C
Published: 2000

25. Leading Particle Production in Light Flavour Jets

Author: Abbiendi, G., Ackerstaff, K., Akesson, P. F., Alexander, G., Allison, J., Anderson, K. J., Arcelli, S., Asai, S., Ashby, S. F., Axen, D., Azuelos, G., Bailey, I., Ball, A. H., Barberio, E., Barlow, R. J., Batley, J. R., Baumann, S., Behnke, T., Bell, K. W., Bella, G., Bellerive, A., Bentvelsen, S., Bethke, S., Betts, S., Biebel, O., Biguzzi, A., Bloodworth, I. J., Bock, P., Bohme, J., Boeriu, O., Bonacorsi, D., Boutemeur, M., Braibant, S., Bright-Thomas, P., Brigliadori, L., Brown, R. M., Burckhart, H. J., Capiluppi, P., Carnegie, R. K., Carter, A. A., Carter, J. R., Chang, C. Y., Charlton, D. G., Chrisman, D., Ciocca, C., Clarke, P. E. L., Clay, E., Cohen, I., Conboy, J. E., Cooke, O. C., Couchman, J., Couyoumtzelis, C., Coxe, R. L., Cuffiani, M., Dado, S., Dallavalle, G. M., Dallison, S., Davis, R., Roeck, A., Dervan, P., Desch, K., Dienes, B., Dixit, M. S., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I. P., Estabrooks, P. G., Etzion, E., Fabbri, F., Fanfani, A., Fanti, M., Faust, A. A., Feld, L., Ferrari, P., Fiedler, F., Fierro, M., Fleck, I., Frey, A., Furtjes, A., Futyan, D. I., Gagnon, P., Gary, J. W., Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Gingrich, D. M., Glenzinski, D., Goldberg, J., Gorn, W., Grandi, C., Graham, K., Gross, E., Grunhaus, J., Gruwe, M., Hajdu, C., Hanson, G. G., Hansroul, M., Hapke, M., Harder, K., Harel, A., Hargrove, C. K., Harin-Dirac, M., Hauschild, M., Hawkes, C. M., Hawkings, R., Hemingway, R. J., Herten, G., Heuer, R. D., Hildreth, M. D., Hill, J. C., Hobson, P. R., Hocker, A., Hoffman, K., Homer, R. J., Honma, A. K., Horvath, D., Hossain, K. R., Howard, R., Huntemeyer, P., Igo-Kemenes, P., Imrie, D. C., Ishii, K., Jacob, F. R., Jawahery, A., Jeremie, H., Jimack, M., Jones, C. R., Jovanovic, P., Junk, T. R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Kayal, P. I., Keeler, R. K., Kellogg, R. G., Kennedy, B. W., Kim, D. H., Klier, A., Kobayashi, T., Kobel, M., Kokott, T. P., Kolrep, M., Komamiya, S., Kowalewski, R. V., Kress, T., Krieger, P., Krogh, J., Kuhl, T., Kupper, M., Kyberd, P., Lafferty, G. D., Landsman, H., Lanske, D., Lauber, J., Lawson, I., Layter, J. G., Lellouch, D., Letts, J., Levinson, L., Liebisch, R., Lillich, J., List, B., Littlewood, C., Lloyd, A. W., Lloyd, S. L., Loebinger, F. K., Long, G. D., Losty, M. J., Lu, J., Ludwig, J., Macchiolo, A., Macpherson, A., Mader, W., Mannelli, M., Marcellini, S., Marchant, T. E., Martin, A. J., Martin, J. P., Martinez, G., Mashimo, T., Mattig, P., Mcdonald, W. J., Mckenna, J., Mckigney, E. A., Mcmahon, T. J., Mcpherson, R. A., Meijers, F., Mendez-Lorenzo, P., Merritt, F. S., Mes, H., Meyer, I., Michelini, A., Mihara, S., Mikenberg, G., Miller, D. J., Mohr, W., Montanari, A., Mori, T., Nagai, K., Nakamura, I., Neal, H. A., Nisius, R., O Neale, S. W., Oakham, F. G., Odorici, F., Ogren, H. O., Okpara, A., Oreglia, M. J., Orito, S., Pasztor, G., Pater, J. R., Patrick, G. N., Patt, J., Perez-Ochoa, R., Petzold, S., Pfeifenschneider, P., Pilcher, J. E., Pinfold, J., Plane, D. E., Poli, B., Polok, J., Przybycien, M., Quadt, A., Rembser, C., Rick, H., Robins, S. A., Rodning, N., Roney, J. M., Rosati, S., Roscoe, K., Rossi, A. M., Rozen, Y., Runge, K., Runolfsson, O., Rust, D. R., Sachs, K., Saeki, T., Sahr, O., Sang, W. M., Sarkisyan, E. K. G., Sbarra, C., Schaile, A. D., Schaile, O., Scharff-Hansen, P., Schieck, J., Schmitt, S., Schoning, A., Schroder, M., Schumacher, M., Schwick, C., Scott, W. G., Seuster, R., Shears, T. G., Shen, B. C., Shepherd-Themistocleous, C. H., Sherwood, P., Siroli, G. P., Skuja, A., Smith, A. M., Snow, G. A., Sobie, R., Soldner-Rembold, S., stefania spagnolo, Sproston, M., Stahl, A., Stephens, K., Stoll, K., Strom, D., Strohmer, R., Surrow, B., Talbot, S. D., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomas, J., Thomson, M. A., Torrence, E., Towers, S., Trefzger, T., Trigger, I., Trocsanyi, Z., Tsur, E., Turner-Watson, M. F., Ueda, I., Kooten, R., Vannerem, P., Verzocchi, M., Voss, H., Wackerle, F., Waller, D., Ward, C. P., Ward, D. R., Watkins, P. M., Watson, A. T., Watson, N. K., Wells, P. S., Wengler, T., Wermes, N., Wetterling, D., White, J. S., Wilson, G. W., Wilson, J. A., Wyatt, T. R., Yamashita, S., Zacek, V., Zer-Zion, D., Opal Collaboration, G., Abbiendi, K., Ackerstaff, P. F., Akesson, G., Alexander, J., Allison, K. J., Anderson, S., Arcelli, S., Asai, S. F., Ashby, D., Axen, G., Azuelo, I., Bailey, A. H., Ball, E., Barberio, R. J., Barlow, J. R., Batley, S., Baumann, T., Behnke, K. W., Bell, G., Bella, A., Bellerive, S., Bentvelsen, S., Bethke, S., Bett, O., Biebel, A., Biguzzi, I. J., Bloodworth, P., Bock, J., Bohme, O., Boeriu, D., Bonacorsi, M., Boutemeur, S., Braibant, P., Bright Thoma, L., Brigliadori, R. M., Brown, H. J., Burckhart, P., Capiluppi, R. K., Carnegie, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, D., Chrisman, C., Ciocca, P. E., L., E., Clay, I., Cohen, J. E., Conboy, O. C., Cooke, J., Couchman, C., Couyoumtzeli, R. L., Coxe, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, R., Davi, A., de Roeck, P., Dervan, K., Desch, B., Diene, M. S., Dixit, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, P. G., Estabrook, E., Etzion, F., Fabbri, A., Fanfani, M., Fanti, A. A., Faust, L., Feld, P., Ferrari, F., Fiedler, M., Fierro, I., Fleck, A., Frey, A., Furtje, D. I., Futyan, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, D. M., Gingrich, D., Glenzinski, J., Goldberg, W., Gorn, C., Grandi, K., Graham, E., Gro, J., Grunhau, M., Gruwe, C., Hajdu, G. G., Hanson, M., Hansroul, M., Hapke, K., Harder, A., Harel, C. K., Hargrove, M., Harin Dirac, M., Hauschild, C. M., Hawke, R., Hawking, R. J., Hemingway, G., Herten, R. D., Heuer, M. D., Hildreth, J. C., Hill, P. R., Hobson, A., Hocker, K., Hoffman, R. J., Homer, A. K., Honma, D., Horvath, K. R., Hossain, R., Howard, P., Huntemeyer, P., Igo Kemene, D. C., Imrie, K., Ishii, F. R., Jacob, A., Jawahery, H., Jeremie, M., Jimack, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, P. I., Kayal, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, A., Klier, T., Kobayashi, M., Kobel, T. P., Kokott, M., Kolrep, S., Komamiya, R. V., Kowalewski, T., Kre, P., Krieger, J., von Krogh, T., Kuhl, M., Kupper, P., Kyberd, G. D., Lafferty, H., Landsman, D., Lanske, J., Lauber, I., Lawson, J. G., Layter, D., Lellouch, J., Lett, L., Levinson, R., Liebisch, J., Lillich, B., List, C., Littlewood, A. W., Lloyd, S. L., Lloyd, F. K., Loebinger, G. D., Long, M. J., Losty, J., Lu, J., Ludwig, A., Macchiolo, A., Macpherson, W., Mader, M., Mannelli, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Martinez, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, E. A., Mckigney, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, F. S., Merritt, H., Me, I., Meyer, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, W., Mohr, A., Montanari, T., Mori, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, F. G., Oakham, F., Odorici, H. O., Ogren, A., Okpara, M. J., Oreglia, S., Orito, G., Pasztor, J. R., Pater, G. N., Patrick, J., Patt, R., Perez Ochoa, S., Petzold, P., Pfeifenschneider, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, M., Przybycien, A., Quadt, C., Rembser, H., Rick, S. A., Robin, N., Rodning, J. M., Roney, S., Rosati, K., Roscoe, A. M., Rossi, Y., Rozen, K., Runge, O., Runolfsson, D. R., Rust, K., Sach, T., Saeki, O., Sahr, W. M., Sang, E. K., G., C., Sbarra, A. D., Schaile, O., Schaile, P., Scharff Hansen, J., Schieck, S., Schmitt, A., Schoning, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, G. P., Siroli, A., Skuja, A. M., Smith, G. A., Snow, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, M., Sproston, A., Stahl, K., Stephen, K., Stoll, D., Strom, R., Strohmer, B., Surrow, S. D., Talbot, P., Tara, S., Tarem, R., Teuscher, M., Thiergen, J., Thoma, M. A., Thomson, E., Torrence, S., Tower, T., Trefzger, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, R., Van Kooten, P., Vannerem, M., Verzocchi, H., Vo, F., Wackerle, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, J. S., White, G. W., Wilson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, and D., Zer Zion
Subjects: Quark, Particle physics, Strange quark, Physics and Astronomy (miscellaneous), High Energy Physics::Lattice, Hadron, Flavour, Nuclear Theory, FOS: Physical sciences, 01 natural sciences, law.invention, High Energy Physics - Experiment, Momentum, High Energy Physics - Experiment (hep-ex), law, 0103 physical sciences, 010306 general physics, Collider, Nuclear Experiment, Engineering (miscellaneous), Physics, Quantum chromodynamics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Baryon, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: The energy distribution and type of the particle with the highest momentum in quark jets are determined for each of the five quark flavours making only minimal model assumptions. The analysis is based on a large statistics sample of hadronic Z0 decays collected with the OPAL detector at the LEP e+e- collider. These results provide a basis for future studies of light flavour production at other centre-of-mass energies. We use our results to study the hadronisation mechanism in light flavour jets and compare the data to the QCD models JETSET and HERWIG. Within the JETSET model we also directly determine the suppression of strange quarks to be gamma_s=0.422+-0.049 (stat.)+-0.059 (syst.) by comparing the production of charged and neutral kaons in strange and non-strange light quark events. Finally we study the features of baryon production., 34 pages, 8 figures; submitted to Eur. Phys. Jour. C
Published: 2000

26. A measurement of the tau mass and the first CPT test with tau leptons

Author: G. Abbiendi, K. Ackerstaff, C. Ainsley, P. F. Akesson, G. Alexander, J. Allison, K. J. Anderson, S. Arcelli, S. Asai, S. F. Ashby, D. Axen, G. Azuelos, I. Bailey, A. H. Ball, E. Barberio, R. J. Barlow, J. R. Batley, S. Baumann, T. Behnke, K. W. Bell, C. Bella, A. Bellerive, S. Bentvelsen, S. Bethke, O. Biebel, I. J. Bloodworth, P. Bock, J. Bohme, O. Boeriu, D. Bonacorsi, M. Boutemeur, S. Braibant, P. Bright Thomas, L. Brigliadori, R. M. Brown, H. J. Burckharth, J. Cammin, P. Capiluppi, R. K. Carnegie, A. A. Carter, J. R. Carter, C. Y. Chang, D. G. Charlton, C. Ciocca, P. E. L., E. Clay, I. Cohen, O. C. Cooke, J. Couchman, C. Couyoumtzelis, R. L. Cox, M. Cuffiani, S. Dado, G. M. Dallavalle, S. Dallison, R. Davis, A. de Roeck, P. Dervan, K. Desch, B. Dienes, M. S. Dixit, M. Donkers, J. Dubbert, E. Duchovni, G. Duckeck, I. P. Duerdoth, P. G. Estabrooks, E. Etzion, F. Fabbri, M. Fanti, A. A. Faust, L. Feld, P. Ferrari, F. Fiedler, I. Fleck, M. Ford, A. Frey, A. Furtjes, D. I. Futyan, P. Gagnon, J. W. Gary, G. Gaycken, C. Geich Gimbel, G. Giacomelli, P. Giacomelli, D. M. Gingrich, D. Glenzinski, J. Goldberg, C. Grandi, K. Graham, E. Gross, J. Grunhaus, M. Gruwe, P. O. Gunther, C. Hajdu, G. G. Hanson, M. Hansroul, M. Hapke, K. Harder, A. Harel, C. K. Hargrove, M. Harin Dirac, A. Hauke, M. Hauschild, C. M. Hawkes, R. Hawkings, R. J. Hemingway, C. Hensel, G. Herten, R. D. Heuer, M. D. Hildreth, J. C. Hill, P. R. Hobson, A. Hocker, K. Hoffman, R. J. Homer, A. K. Honma, D. Horvath, K. R. Hossain, R. Howard, P. Huntemeyer, P. Igo Kemenes, D. C. Imrie, K. Ishii, F. R. Jacob, A. Jawahery, H. Jeremie, C. R. Jones, P. Jovanovic, T. R. Junk, N. Kanaya, J. Kanzaki, G. Karapetian, D. Karlen, V. Kartvelishvili, K. Kawagoe, T. Kawamoto, P. I. Kayal, R. K. Keller, R. G. Kellogg, B. W. Kennedy, D. H. Kim, K. Klein, A. Klier, T. Kobayashi, M. Kobel, T. P. Kokott, S. Komamiya, R. V. Kowalewski, T. Kress, P. Krieger, J. von Krogh, T. Kuhl, M. Kupper, P. Kyberd, G. D. Lafferty, H. Landsman, D. Lanske, I. Lawson, J. G. Layter, A. Leins, D. Lellouch, J. Letts, L. Levinson, R. Liebisch, J. Lillich, B. List, C. Littlewood, A. W. Lloyd, S. L. Lloyd, F. K. Loebinger, G. D. Long, M. J. Losty, J. Lu, J. Ludwig, A. Macchiolo, A. Macpherson, W. Mader, M. Mannelli, S. Marcellini, T. E. Marchant, A. J. Martin, J. P. Martin, G. Martinez, T. Mashimo, P. Mattig, W. J. McDonald, J. McKenna, T. J. McMahon, R. A. McPherson, F. Meijers, P. Mendez Lorenzo, F. S. Merritt, H. Mes, A. Michelini, S. Mihara, G. Mikenberg, D. J. Miller, W. Mohr, A. Montanari, T. Mori, K. Nagai, I. Nakamura, H. A. Neal, R. Nisius, S. W. O'Neale, F. G. Oakham, F. Odorici, H. O. Ogren, A. Oh, A. Okpara, M. J. Oreglia, S. Orito, G. Pasztor, J. R. Pater, G. N. Patrick, J. Patt, P. Pfeifenschneider, J. E. Pilcher, J. Pinfold, D. E. Plane, B. Poli, J. Polok, O. Pooth, M. Przybycien, A. Quadt, C. Rembser, H. Rick, S. A. Robins, N. Rodning, J. M. Roney, S. Rosati, K. Roscoe, A. M. Rossi, Y. Rozen, K. Runge, O. Runolfsson, D. R. Rust, K. Sachs, T. Saeki, O. Sahr, W. M. Sang, E. K. G., C. Sbarra, A. D. Schaile, O. Schaile, P. Scharff Hansen, S. Schmitt, M. Schroder, M. Schumacher, C. Schwick, W. G. Scott, R. Seuster, T. G. Shears, B. C. Shen, C. H. Shepherd Themistocleous, P. Sherwood, G. P. Siroli, A. Skuja, A. M. Smith, G. A. Snow, R. Sobie, S. Soldner Rembold, M. Sproston, A. Stahl, K. Stephens, K. Stoll, D. Strom, R. Strohmer, B. Surrow, S. D. Talbot, S. Tarem, R. J. Taylor, R. Teuscher, M. Thiergen, J. Thomas, M. A. Thomson, E. Torrence, S. Towers, T. Trefzger, I. Trigger, Z. Trocsanyi, E. Tsur, M. F. Turner Watson, I. Ueda, P. Vannerem, M. Verzocchi, H. Voss, J. Vossebeld, D. Waller, C. P. Ward, D. R. Ward, P. M. Watkins, A. T. Watson, N. K. Watson, P. S. Wells, T. Wengler, N. Wermes, D. Wetterling, J. S. White, G. W. Wilson, J. A. Wilson, T. R. Wyatt, S. Yamashita, V. Zacek, D. Zer Zion, SPAGNOLO, Stefania Antonia, G., Abbiendi, K., Ackerstaff, C., Ainsley, P. F., Akesson, G., Alexander, J., Allison, K. J., Anderson, S., Arcelli, S., Asai, S. F., Ashby, D., Axen, G., Azuelo, I., Bailey, A. H., Ball, E., Barberio, R. J., Barlow, J. R., Batley, S., Baumann, T., Behnke, K. W., Bell, C., Bella, A., Bellerive, S., Bentvelsen, S., Bethke, O., Biebel, I. J., Bloodworth, P., Bock, J., Bohme, O., Boeriu, D., Bonacorsi, M., Boutemeur, S., Braibant, P., Bright Thoma, L., Brigliadori, R. M., Brown, H. J., Burckharth, J., Cammin, P., Capiluppi, R. K., Carnegie, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, C., Ciocca, P. E., L., E., Clay, I., Cohen, O. C., Cooke, J., Couchman, C., Couyoumtzeli, R. L., Cox, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, R., Davi, A., de Roeck, P., Dervan, K., Desch, B., Diene, M. S., Dixit, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, P. G., Estabrook, E., Etzion, F., Fabbri, M., Fanti, A. A., Faust, L., Feld, P., Ferrari, F., Fiedler, I., Fleck, M., Ford, A., Frey, A., Furtje, D. I., Futyan, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, D. M., Gingrich, D., Glenzinski, J., Goldberg, C., Grandi, K., Graham, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, C., Hajdu, G. G., Hanson, M., Hansroul, M., Hapke, K., Harder, A., Harel, C. K., Hargrove, M., Harin Dirac, A., Hauke, M., Hauschild, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, M. D., Hildreth, J. C., Hill, P. R., Hobson, A., Hocker, K., Hoffman, R. J., Homer, A. K., Honma, D., Horvath, K. R., Hossain, R., Howard, P., Huntemeyer, P., Igo Kemene, D. C., Imrie, K., Ishii, F. R., Jacob, A., Jawahery, H., Jeremie, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, P. I., Kayal, R. K., Keller, R. G., Kellogg, B. W., Kennedy, D. H., Kim, K., Klein, A., Klier, T., Kobayashi, M., Kobel, T. P., Kokott, S., Komamiya, R. V., Kowalewski, T., Kre, P., Krieger, J., von Krogh, T., Kuhl, M., Kupper, P., Kyberd, G. D., Lafferty, H., Landsman, D., Lanske, I., Lawson, J. G., Layter, A., Lein, D., Lellouch, J., Lett, L., Levinson, R., Liebisch, J., Lillich, B., List, C., Littlewood, A. W., Lloyd, S. L., Lloyd, F. K., Loebinger, G. D., Long, M. J., Losty, J., Lu, J., Ludwig, A., Macchiolo, A., Macpherson, W., Mader, M., Mannelli, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Martinez, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, F. S., Merritt, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, W., Mohr, A., Montanari, T., Mori, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, F. G., Oakham, F., Odorici, H. O., Ogren, A., Oh, A., Okpara, M. J., Oreglia, S., Orito, G., Pasztor, J. R., Pater, G. N., Patrick, J., Patt, P., Pfeifenschneider, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, O., Pooth, M., Przybycien, A., Quadt, C., Rembser, H., Rick, S. A., Robin, N., Rodning, J. M., Roney, S., Rosati, K., Roscoe, A. M., Rossi, Y., Rozen, K., Runge, O., Runolfsson, D. R., Rust, K., Sach, T., Saeki, O., Sahr, W. M., Sang, E. K., G., C., Sbarra, A. D., Schaile, O., Schaile, P., Scharff Hansen, S., Schmitt, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, G. P., Siroli, A., Skuja, A. M., Smith, G. A., Snow, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, M., Sproston, A., Stahl, K., Stephen, K., Stoll, D., Strom, R., Strohmer, B., Surrow, S. D., Talbot, S., Tarem, R. J., Taylor, R., Teuscher, M., Thiergen, J., Thoma, M. A., Thomson, E., Torrence, S., Tower, T., Trefzger, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, P., Vannerem, M., Verzocchi, H., Vo, J., Vossebeld, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, J. S., White, G. W., Wilson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, and D., Zer Zion
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, CPT symmetry, High Energy Physics::Phenomenology, FOS: Physical sciences, 01 natural sciences, Measure (mathematics), Confidence interval, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Relative mass, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Particle Physics - Experiment, Lepton
Abstract: We measure the mass of the tau lepton to be 1775.1+-1.6(stat)+-1.0(syst.) MeV using tau pairs from Z0 decays. To test CPT invariance we compare the masses of the positively and negatively charged tau leptons. The relative mass difference is found to be smaller than 3.0 10^-3 at the 90% confidence level., Comment: 10 pages, 4 figures, Submitted to Phys. Letts. B
Published: 2000
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27. A Measurement of the Rate of Charm Production in W Decays

Author: Abbiendi, G., Ackerstaff, K., Ainsley, C., Akesson, P.F., Alexander, G., Allison, John, Anderson, K.J., Arcelli, S., Asai, S., Ashby, S.F., Axen, D., Azuelos, G., Bailey, I., Ball, A.H., Barberio, E., Barlow, Roger J., Baumann, S., Behnke, T., Bell, Kenneth Watson, Bella, G., Bellerive, A., Benelli, G., Bentvelsen, S., Bethke, S., Biebel, O., Bloodworth, I.J., Boeriu, O., Bock, P., Bohme, J., Bonacorsi, D., Boutemeur, M., Braibant, S., Bright-Thomas, P., Brigliadori, L., Brown, Robert M., Burckhart, H.J., Cammin, J., Capiluppi, P., Carnegie, R.K., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Clarke, P.E.L., Clay, E., Cohen, I., Cooke, O.C., Couchman, J., Couyoumtzelis, C., Coxe, R.L., Csilling, A., Cuffiani, M., Dado, S., Dallavalle, G.Marco, Dallison, S., de Roeck, A., de Wolf, E., Dervan, P., Desch, K., Dienes, B., Dixit, M.S., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Estabrooks, P.G., Etzion, E., Fabbri, F., Fanti, M., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Glenzinski, D., Goldberg, J., Grandi, C., Graham, K., Gross, E., Grunhaus, J., Gruwe, M., Gunther, P.O., Hajdu, C., Hanson, G.G., Hansroul, M., Hapke, M., Harder, K., Harel, A., Harin-Dirac, M., Hauke, A., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Hensel, C., Herten, G., Heuer, R.D., Hill, J.C., Hocker, James Andrew, Hoffman, Kara Dion, Homer, R.J., Honma, A.K., Horvath, D., Hossain, K.R., Howard, R., Huntemeyer, P., Igo-Kemenes, P., Ishii, K., Jacob, F.R., Jawahery, A., Jeremie, H., Jones, C.R., Jovanovic, P., Junk, T.R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kim, D.H., Klein, K., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Kokott, T.P., Komamiya, S., Kowalewski, Robert V., Kress, T., Krieger, P., von Krogh, J., Kuhl, T., Kupper, M., Kyberd, P., Lafferty, G.D., Landsman, H., Lanske, D., Lawson, I., Layter, J.G., Leins, A., Lellouch, D., Letts, J., Levinson, L., Liebisch, R., Lillich, J., List, B., Littlewood, C., Lloyd, A.W., Lloyd, S.L., Loebinger, F.K., Long, G.D., Losty, M.J., Lu, J., Ludwig, J., Macchiolo, A., Macpherson, A., Mader, W., Marcellini, S., Marchant, T.E., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., McMahon, T.J., McPherson, R.A., Meijers, F., Mendez-Lorenzo, P., Menges, W., Merritt, F.S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Mohr, W., Montanari, A., Mori, T., Nagai, K., Nakamura, I., Neal, H.A., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Oh, A., Okpara, A., Oreglia, M.J., Orito, S., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poli, B., Polok, J., Pooth, O., Przybycien, M., Quadt, A., Rembser, C., Renkel, P., Rick, H., Rodning, N., Roney, J.M., Rosati, S., Roscoe, K., Rossi, A.M., Rozen, Y., Runge, K., Runolfsson, O., Rust, D.R., Sachs, K., Saeki, T., Sahr, O., Sarkisyan, E.K.G., Sbarra, C., Schaile, A.D., Schaile, O., Scharff-Hansen, P., Schroder, Matthias, Schumacher, M., Schwick, C., Scott, W.G., Seuster, R., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G.P., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Spagnolo, S., Sproston, M., Stahl, A., Stephens, K., Stoll, K., Strom, David M., Strohmer, R., Stumpf, L., Surrow, B., Talbot, S.D., Tarem, S., Taylor, R.J., Teuscher, R., Thiergen, M., Thomas, J., Thomson, M.A., Torrence, E., Towers, S., Toya, D., Trefzger, T., Trigger, I., Trocsanyi, Z., Tsur, E., Turner-Watson, M.F., Ueda, I., Vachon, B., Vannerem, P., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wengler, T., Wermes, N., Wetterling, D., White, J.S., Wilson, G.W., Wilson, J.A., Wyatt, T.R., Yamashita, S., Zacek, V., Zer-Zion, D., OPAL Collaboration, G., Abbiendi, K., Ackerstaff, C., Ainsley, P. F., Akesson, G., Alexander, J., Allison, K. J., Anderson, S., Arcelli, S., Asai, S. F., Ashby, D., Axen, G., Azuelo, I., Bailey, A. H., Ball, E., Barberio, R. J., Barlow, S., Baumann, T., Behnke, K. W., Bell, G., Bella, A., Bellerive, G., Benelli, S., Bentvelsen, S., Bethke, O., Biebel, I. J., Bloodworth, O., Boeriu, P., Bock, J., Bohme, D., Bonacorsi, M., Boutemeur, S., Braibant, P., Bright Thoma, L., Brigliadori, R. M., Brown, H. J., Burckhart, J., Cammin, P., Capiluppi, R. K., Carnegie, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, P. E., L., E., Clay, I., Cohen, O. C., Cooke, J., Couchman, C., Couyoumtzeli, R. L., Coxe, A., Csilling, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, A., de Roeck, E., de Wolf, P., Dervan, K., Desch, B., Diene, M. S., Dixit, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, P. G., Estabrook, E., Etzion, F., Fabbri, M., Fanti, L., Feld, P., Ferrari, F., Fiedler, I., Fleck, M., Ford, A., Frey, A., Furtje, D. I., Futyan, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, D., Glenzinski, J., Goldberg, C., Grandi, K., Graham, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, C., Hajdu, G. G., Hanson, M., Hansroul, M., Hapke, K., Harder, A., Harel, M., Harin Dirac, A., Hauke, M., Hauschild, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, J. C., Hill, A., Hocker, K., Hoffman, R. J., Homer, A. K., Honma, D., Horvath, K. R., Hossain, R., Howard, P., Huntemeyer, P., Igo Kemene, K., Ishii, F. R., Jacob, A., Jawahery, H., Jeremie, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, K., Klein, A., Klier, S., Kluth, T., Kobayashi, M., Kobel, T. P., Kokott, S., Komamiya, R. V., Kowalewski, T., Kre, P., Krieger, J., von Krogh, T., Kuhl, M., Kupper, P., Kyberd, G. D., Lafferty, H., Landsman, D., Lanske, I., Lawson, J. G., Layter, A., Lein, D., Lellouch, J., Lett, L., Levinson, R., Liebisch, J., Lillich, B., List, C., Littlewood, A. W., Lloyd, S. L., Lloyd, F. K., Loebinger, G. D., Long, M. J., Losty, J., Lu, J., Ludwig, A., Macchiolo, A., Macpherson, W., Mader, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Martinez, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, W., Menge, F. S., Merritt, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, W., Mohr, A., Montanari, T., Mori, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, F. G., Oakham, F., Odorici, H. O., Ogren, A., Oh, A., Okpara, M. J., Oreglia, S., Orito, G., Pasztor, J. R., Pater, G. N., Patrick, J., Patt, P., Pfeifenschneider, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, O., Pooth, M., Przybycien, A., Quadt, C., Rembser, P., Renkel, H., Rick, N., Rodning, J. M., Roney, S., Rosati, K., Roscoe, A. M., Rossi, Y., Rozen, K., Runge, O., Runolfsson, D. R., Rust, K., Sach, T., Saeki, O., Sahr, E. K., G., C., Sbarra, A. D., Schaile, O., Schaile, P., Scharff Hansen, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, G. P., Siroli, A., Skuja, A. M., Smith, G. A., Snow, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, M., Sproston, A., Stahl, K., Stephen, K., Stoll, D., Strom, R., Strohmer, L., Stumpf, B., Surrow, S. D., Talbot, S., Tarem, R. J., Taylor, R., Teuscher, M., Thiergen, J., Thoma, M. A., Thomson, E., Torrence, S., Tower, D., Toya, T., Trefzger, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, P., Vannerem, M., Verzocchi, H., Vo, J., Vossebeld, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, J. S., White, G. W., Wilson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, and D., Zer Zion
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Cabibbo–Kobayashi–Maskawa matrix, Branching fraction, Hadron, High Energy Physics::Phenomenology, FOS: Physical sciences, Jet (particle physics), 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, Standard Model, Charm quark, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, High Energy Physics::Experiment, Charm (quantum number), 010306 general physics, Nuclear Experiment, Particle Physics - Experiment, Lepton
Abstract: Using data recorded at centre-of-mass energies around 183 GeV and 189 GeV with the OPAL detector at LEP, the fundamental coupling of the charm quark to the W boson has been studied. The ratio Rc^W = Gamma(W -> cX)/Gamma(W -> hadrons) has been measured from jet properties, lifetime information, and leptons produced in charm decays. A value compatible with the Standard Model expectation of 0.5 is obtained: Rc^W = 0.481 +- 0.042(stat.) +- 0.032(syst.). By combining this result with measurements of the W boson total width and hadronic branching ratio, the magnitude of the CKM matrix element Vcs is determined to be |Vcs| = 0.969 +- 0.058., 18 pages, 4 figures, submitted to Phys. Lett. B
Published: 2000
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28. Precision Luminosity for Z0 Lineshape Measurements with a Silicon-Tungsten Calorimeter

Author: Abbiendi, G, Ackerstaff, K, Alexander, G, Allison, J, Anderson, KJ, Anderson, S, Arcelli, S, Asai, S, Ashby, SF, Axen, D, Azuelos, G, Graham, K, Gross, E, Grunhaus, J, Gruwe, M, Hajdu, C, Hanson, GG, Hansroul, M, Hapke, M, Harder, K, Harel, A, Ball, AH, Hargrove, CK, Harin-Dirac, M, Hart, P, Hauschild, M, Hawkes, CM, Hawkings, R, Hemingway, RJ, Herten, G, Heuer, RD, Hildreth, MD, Barberio, E, Hill, JC, Hillier, S, Hobson, PR, Hocker, A, Hoffman, K, Homer, RJ, Honma, AK, Horvath, D, Hossain, KR, Howard, R, Barlow, RJ, Huntemeyer, P, Igo-Kemenes, P, Imrie, DC, Ishii, K, Jacob, FR, Jawahery, A, Jeremie, H, Jimack, M, Jones, CR, Jovanovic, P, Batley, JR, Junk, TR, Kanaya, N, Kanzaki, J, Karlen, D, Kartvelishvili, V, Kawagoe, K, Kawamoto, T, Kayal, PI, Keeler, RK, Kellogg, RG, Baumann, S, Kennedy, BW, Kim, DH, Kirk, J, Klier, A, Kobayashi, T, Kobel, M, Kokott, TP, Kolrep, M, Komamiya, S, Kowalewski, RV, Bechtluft, J, Kress, T, Krieger, P, von Krogh, J, Kuhl, T, Kyberd, P, Lai, WP, Lafferty, GD, Lahmann, R, Landsman, H, Lanske, D, Behnke, T, Lauber, J, Lawson, I, Layter, JG, Lee, AM, Lellouch, D, Letts, J, Levinson, L, Liebisch, R, Lillich, J, List, B, Bell, KW, Littlewood, C, Lloyd, AW, Lloyd, SL, Loebinger, FK, Long, GD, Losty, MJ, Lu, J, Ludwig, J, Liu, D, Macchiolo, A, Bella, G, Macpherson, A, Mader, W, Mannelli, M, Marcellini, S, Marchant, TE, Martin, AJ, Martin, JP, Martinez, G, Mashimo, T, Mattig, P, Bellerive, A, McDonald, WJ, McKenna, J, Mckigney, EA, McMahon, TJ, McPherson, RA, Meijers, F, Mendez-Lorenzo, P, Menke, S, Merritt, FS, Mes, H, Bentvelsen, S, Meyer, I, Michelini, A, Mihara, S, Mikenberg, G, Miller, DJ, Mohr, W, Montanari, A, Mori, T, Muller, U, Nagai, K, Bethke, S, Nakamura, I, Neal, HA, Nisius, R, O'Neale, SW, Oakham, FG, Odorici, F, Ogren, HO, Okpara, A, Oreglia, MJ, Orito, S, Betts, S, Palmonari, F, Pasztor, G, Pater, JR, Patrick, GN, Patt, J, Perez-Ochoa, R, Petzold, S, Pfeifenschneider, P, Pilcher, JE, Pinfold, J, Biebel, O, Plane, DE, Poffenberger, P, Poli, B, Polok, J, Przybycien, M, Quadt, A, Raith, B, Rembser, C, Rick, H, Robertson, S, Biguzzi, A, Robins, SA, Rodning, N, Roney, JM, Rosati, S, Roscoe, K, Rossi, AM, Rozen, Y, Runge, K, Runolfsson, O, Rust, DR, Bloodworth, IJ, Sachs, K, Saeki, T, Sahr, O, Sang, WM, Sarkisyan, EKG, Sbarra, C, Schaile, AD, Schaile, O, Scharff-Hansen, P, Schieck, J, Bock, P, Schmitt, B, Schmitt, S, Schoning, A, Schroder, M, Schumacher, M, Schwick, C, Scott, WG, Seuster, R, Shears, TG, Shen, BC, Bohme, J, Shepherd-Themistocleous, CH, Sherwood, P, Siroli, GP, Skuja, A, Smith, AM, Snow, GA, Sobie, R, Soldner-Rembold, S, Spagnolo, S, Springer, W, Boeriu, O, Sproston, M, Stahl, A, Stephens, K, Stoll, K, Strom, D, Strohmer, R, Surrow, B, Talbot, SD, Taras, P, Tarem, S, Bonacorsi, D, Tecchio, M, Teuscher, R, Thiergen, M, Thomas, J, Thomson, MA, Torrence, E, Towers, S, Trefzger, T, Trigger, I, Trocsanyi, Z, Boutemeur, M, Tsur, E, Turner-Watson, MF, Ueda, I, Van Kooten, R, Vannerem, P, Verzocchi, M, Voss, H, Wackerle, F, Wagner, A, Wagner, D, Braibant, S, Waller, D, Ward, CP, Ward, DR, Watkins, PM, Watson, AT, Watson, NK, Wells, PS, Wermes, N, Wetterling, D, White, JS, Bright-Thomas, P, Wilson, GW, Wilson, JA, Wyatt, TR, Yamashita, S, Zacek, V, Zer-Zion, D, OPAL Collaboration, Brigliadori, L, Brown, RM, Burckhart, HJ, Capiluppi, P, Carnegie, RK, Carter, AA, Carter, JR, Chang, CY, Charlton, DG, Chrisman, D, Ciocca, C, Clarke, PEL, Clay, E, Cohen, I, Conboy, JE, Cooke, OC, Couchman, J, Couyoumtzelis, C, Coxe, RL, Cuffiani, M, Dado, S, Dallavalle, GM, Dallison, S, Darling, C, Davis, R, De Jong, S, de Roeck, A, Dervan, P, Desch, K, Dienes, B, Dixit, MS, Donkers, M, Dubbert, J, Duchovni, E, Duckeck, G, Duerdoth, IP, Estabrooks, PG, Etzion, E, Evans, H, Fabbri, F, Fanfani, A, Fanti, M, Faust, AA, Feld, L, Ferrari, P, Fiedler, F, Fierro, M, Fleck, I, Foucher, M, Frey, A, Furtjes, A, Futyan, DI, Gagnon, P, Gary, JW, Gascon-Shotkin, S, Gaycken, G, Geich-Gimbel, C, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, WR, Gingrich, DM, Glenzinski, D, Goldberg, J, Gorn, W, Grandi, C, G., Abbiendi, K., Ackerstaff, G., Alexander, J., Allison, K. J., Anderson, S., Anderson, S., Arcelli, S., Asai, S. F., Ashby, D., Axen, G., Azuelo, A. H., Ball, E., Barberio, R. J., Barlow, J. R., Batley, S., Baumann, J., Bechtluft, T., Behnke, K. W., Bell, G., Bella, A., Bellerive, S., Bentvelsen, S., Bethke, S., Bett, O., Biebel, A., Biguzzi, I. J., Bloodworth, P., Bock, J., Bohme, O., Boeriu, D., Bonacorsi, M., Boutemeur, S., Braibant, P., Bright Thoma, L., Brigliadori, R. M., Brown, H. J., Burckhart, P., Capiluppi, R. K., Carnegie, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, D., Chrisman, C., Ciocca, P. E., L., E., Clay, I., Cohen, J. E., Conboy, O. C., Cooke, J., Couchman, C., Couyoumtzeli, R. L., Coxe, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, C., Darling, R., Davi, S., De Jong, A., de Roeck, P., Dervan, K., Desch, B., Diene, M. S., Dixit, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, P. G., Estabrook, E., Etzion, H., Evan, F., Fabbri, A., Fanfani, M., Fanti, A. A., Faust, L., Feld, P., Ferrari, F., Fiedler, M., Fierro, I., Fleck, M., Foucher, A., Frey, A., Furtje, D. I., Futyan, P., Gagnon, J. W., Gary, S., Gascon Shotkin, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, R., Giacomelli, W. R., Gibson, D. M., Gingrich, D., Glenzinski, J., Goldberg, W., Gorn, C., Grandi, K., Graham, E., Gro, J., Grunhau, M., Gruwe, C., Hajdu, G. G., Hanson, M., Hansroul, M., Hapke, K., Harder, A., Harel, C. K., Hargrove, M., Harin Dirac, P., Hart, M., Hauschild, C. M., Hawke, R., Hawking, R. J., Hemingway, G., Herten, R. D., Heuer, M. D., Hildreth, J. C., Hill, S., Hillier, P. R., Hobson, A., Hocker, K., Hoffman, R. J., Homer, A. K., Honma, D., Horvath, K. R., Hossain, R., Howard, P., Huntemeyer, P., Igo Kemene, D. C., Imrie, K., Ishii, F. R., Jacob, A., Jawahery, H., Jeremie, M., Jimack, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, P. I., Kayal, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, J., Kirk, A., Klier, T., Kobayashi, M., Kobel, T. P., Kokott, M., Kolrep, S., Komamiya, R. V., Kowalewski, T., Kre, P., Krieger, J., von Krogh, T., Kuhl, P., Kyberd, W. P., Lai, G. D., Lafferty, R., Lahmann, H., Landsman, D., Lanske, J., Lauber, I., Lawson, J. G., Layter, A. M., Lee, D., Lellouch, J., Lett, L., Levinson, R., Liebisch, J., Lillich, B., List, C., Littlewood, A. W., Lloyd, S. L., Lloyd, F. K., Loebinger, G. D., Long, M. J., Losty, J., Lu, J., Ludwig, D., Liu, A., Macchiolo, A., Macpherson, W., Mader, M., Mannelli, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Martinez, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, E. A., Mckigney, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, S., Menke, F. S., Merritt, H., Me, I., Meyer, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, W., Mohr, A., Montanari, T., Mori, U., Muller, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, F. G., Oakham, F., Odorici, H. O., Ogren, A., Okpara, M. J., Oreglia, S., Orito, F., Palmonari, G., Pasztor, J. R., Pater, G. N., Patrick, J., Patt, R., Perez Ochoa, S., Petzold, P., Pfeifenschneider, J. E., Pilcher, J., Pinfold, D. E., Plane, P., Poffenberger, B., Poli, J., Polok, M., Przybycien, A., Quadt, B., Raith, C., Rembser, H., Rick, S., Robertson, S. A., Robin, N., Rodning, J. M., Roney, S., Rosati, K., Roscoe, A. M., Rossi, Y., Rozen, K., Runge, O., Runolfsson, D. R., Rust, K., Sach, T., Saeki, O., Sahr, W. M., Sang, E. K., G., C., Sbarra, A. D., Schaile, O., Schaile, P., Scharff Hansen, J., Schieck, B., Schmitt, S., Schmitt, A., Schoning, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, G. P., Siroli, A., Skuja, A. M., Smith, G. A., Snow, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, W., Springer, M., Sproston, A., Stahl, K., Stephen, K., Stoll, D., Strom, R., Strohmer, B., Surrow, S. D., Talbot, P., Tara, S., Tarem, M., Tecchio, R., Teuscher, M., Thiergen, J., Thoma, M. A., Thomson, E., Torrence, S., Tower, T., Trefzger, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, R., Van Kooten, P., Vannerem, M., Verzocchi, H., Vo, F., Wackerle, A., Wagner, D., Wagner, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, N., Werme, D., Wetterling, J. S., White, G. W., Wilson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, and D., Zer Zion
Subjects: LOW-NOISE, Particle physics, E+E ANNIHILATION, Photon, Physics and Astronomy (miscellaneous), Physics::Instrumentation and Detectors, FOS: Physical sciences, Electron, INCLUSIVE MUON PRODUCTION, 01 natural sciences, OPAL DETECTOR, Radiation length, High Energy Physics - Experiment, Nuclear physics, BHABHA SCATTERING, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, 010306 general physics, Engineering (miscellaneous), Bhabha scattering, Physics, Luminosity (scattering theory), Interaction point, ELECTROWEAK PARAMETERS, 010308 nuclear & particles physics, CMOS SIGNAL PROCESSOR, MICROVERTEX DETECTOR, SMALL-ANGLE, Calorimeter, TOTAL CROSS-SECTION, High Energy Physics::Experiment, Event (particle physics), Particle Physics - Experiment
Abstract: The measurement of small-angle Bhabha scattering is used to determine the luminosity at the OPAL interaction point for the LEP I data recorded between 1993 and 1995. The measurement is based on the OPAL Silicon-Tungsten Luminometer which is composed of two calorimeters encircling the LEP beam pipe, on opposite sides of the interaction point. The luminometer detects electrons from small-angle Bhabha scattering at angles between 25 and 58mrad. At LEP center-of-mass energies around the Z0, about half of all Bhabha electrons entering the detector fall within a 79nb fiducial acceptance region. The electromagnetic showers generated in the stack of 1 radiation length tungsten absorber plates are sampled by 608 silicon detectors with 38,912 radial pads of 2.5mm width.The fine segmentation of the detector, combined with the precise knowledge of its physical dimensions, allows the trajectories of incoming 45GeV electrons or photons to be determined with a total systematic error of less than 7microns. We have quantified all significant sources of systematic experimental error in the luminosity determination by direct physical measurement. All measured properites of the luminosity event sample are found to be in agreement with current theoretical expectations. The total systematic measurement uncertainty is 3.4x10^-4, significantly below the theoretical error of 5.4x10^-4 currently assigned to the QED calculation of the Bhabha acceptance, and contributes negligibly to the total uncertainty in the OPAL measurement of Gamma{invisible}/Gamma{l+l-}, a quantity of basic physical interest which depends crucially on the luminosity measurement., Comment: 87 pages, 36 figures, submitted to Eur.Phys. J. C. Updated references
Published: 1999
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29. A study of one-prong Tau decays with a charged kaon

Author: Abbiendi, G., Ackerstaff, K., Ainsley, C., Akesson, P. F., Alexander, G., Allison, J., Anderson, K. J., Arcelli, S., Asai, S., Ashby, S. F., Axen, D., Azuelos, G., Bailey, I., Ball, A. H., Barberio, E., Barlow, R. J., Baumann, S., Behnke, T., Bell, K. W., Bella, G., Bellerive, A., Bentvelsen, S., Bethke, S., Biebel, O., Bloodworth, I. J., Bock, P., Böhme, J., Boeriu, O., Bonacorsi, D., Boutemeur, M., Braibant, S., Bright-Thomas, P., Brigliadori, L., Brown, R. M., Burckhart, H. J., Cammin, J., Capiluppi, P., Carnegie, R. K., Carter, A. A., Carter, J. R., Chang, C. Y., Charlton, D. G., Ciocca, C., Clarke, P. E. L., Clay, E., Cohen, I., Cooke, O. C., Couchman, J., Couyoumtzelis, C., Coxe, R. L., Cuffiani, M., Dado, S., Dallavalle, G. M., Dallison, S., Roeck, A., Dervan, P., Desch, K., Dienes, B., Dixit, M. S., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I. P., Estabrooks, P. G., Etzion, E., Fabbri, F., Fanti, M., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Fürtjes, A., Futyan, D. I., Gagnon, P., Gary, J. W., Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Glenzinski, D., Goldberg, J., Grandi, C., Graham, K., Gross, E., Grunhaus, J., Gruwé, M., Günther, P. O., Hajdu, C., Hanson, G. G., Hansroul, M., Hapke, M., Harder, K., Harel, A., Hargrove, C. K., Harin-Dirac, M., Hauke, A., Hauschild, M., Hawkes, C. M., Hawkings, R., Hemingway, R. J., Hensel, C., Herten, G., Heuer, R. D., Hildreth, M. D., Hill, J. C., Hocker, A., Hoffman, K., Homer, R. J., Honma, A. K., Horváth, D., Hossain, K. R., Howard, R., Hüntemeyer, P., Igo-Kemenes, P., Ishii, K., Jacob, F. R., Jawahery, A., Jeremie, H., Jones, C. R., Jovanovic, P., Junk, T. R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kartvelishvili, V., Kiyotomo Kawagoe, Kawamoto, T., Keeler, R. K., Kellogg, R. G., Kennedy, B. W., Kim, D. H., Klein, K., Klier, A., Kobayashi, T., Kobel, M., Kokott, T. P., Komamiya, S., Kowalewski, R. V., Kress, T., Krieger, P., Krogh, J., Kuhl, T., Kupper, M., Kyberd, P., Lafferty, G. D., Landsman, H., Lanske, D., Lawson, I., Layter, J. G., Leins, A., Lellouch, D., Letts, J., Levinson, L., Liebisch, R., Lillich, J., List, B., Littlewood, C., Lloyd, A. W., Lloyd, S. L., Loebinger, F. K., Long, G. D., Losty, M. J., Lu, J., Ludwig, J., Macchiolo, A., Macpherson, A., Mader, W., Mannelli, M., Marcellini, S., Marchant, T. E., Martin, A. J., Martin, J. P., Martinez, G., Mashimo, T., Mättig, P., Mcdonald, W. J., Mckenna, J., Mcmahon, T. J., Mcpherson, R. A., Meijers, F., Mendez-Lorenzo, P., Merritt, F. S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D. J., Mohr, W., Montanari, A., Mori, T., Nagai, K., Nakamura, I., Neal, H. A., Nisius, R., O Neale, S. W., Oakham, F. G., Odorici, F., Ogren, H. O., Oh, A., Okpara, A., Oreglia, M. J., Orito, S., Pásztor, G., Pater, J. R., Patrick, G. N., Patt, J., Pfeifenschneider, P., Pilcher, J. E., Pinfold, J., Plane, D. E., Poli, B., Polok, J., Pooth, O., Przybycień, M., Quadt, A., Rembser, C., Rick, H., Robins, S. A., Rodning, N., Roney, J. M., Rosati, S., Roscoe, K., Rossi, A. M., Rozen, Y., Runge, K., Runolfsson, O., Rust, D. R., Sachs, K., Saeki, T., Sahr, O., Sarkisyan, E. K. G., Sbarra, C., Schaile, A. D., Schaile, O., Scharff-Hansen, P., Schmitt, S., Schröder, M., Schumacher, M., Schwick, C., Scott, W. G., Seuster, R., Shears, T. G., Shen, B. C., Shepherd-Themistocleous, C. H., Sherwood, P., Siroli, G. P., Skuja, A., Smith, A. M., Snow, G. A., Sobie, R., Söldner-Rembold, S., Spagnolo, S., Sproston, M., Stahl, A., Stephens, K., Stoll, K., Strom, D., Ströhmer, R., Surrow, B., Talbot, S. D., Tarem, S., Taylor, R. J., Teuscher, R., Thiergen, M., Thomas, J., Thomson, M. A., Torrence, E., Towers, S., Trefzger, T., Trigger, I., Trócsányi, Z., Tsur, E., Turner-Watson, M. F., Ueda, I., Vannerem, P., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C. P., Ward, D. R., Watkins, P. M., Watson, A. T., Watson, N. K., Wells, P. S., Wengler, T., Wermes, N., Wetterling, D., White, J. S., Wilson, G. W., Wilson, J. A., Wyatt, T. R., Yamashita, S., Zacek, V., Zer-Zion, D., G., Abbiendi, K., Ackerstaff, C., Ainsley, P. F., Akesson, G., Alexander, J., Allison, K. J., Anderson, S., Arcelli, S., Asai, S. F., Ashby, D., Axen, G., Azuelo, I., Bailey, A. H., Ball, E., Barberio, R. J., Barlow, S., Baumann, T., Behnke, K. W., Bell, G., Bella, A., Bellerive, S., Bentvelsen, S., Bethke, O., Biebel, I. J., Bloodworth, P., Bock, J., Bohme, O., Boeriu, D., Bonacorsi, M., Boutemeur, S., Braibant, P., Bright Thoma, L., Brigliadori, R. H., Brown, H. J., Burckhart, J., Cammin, P., Capiluppi, R. K., Carnegie, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, C., Ciocca, P. E., L., E., Clay, I., Cohen, O. C., Cooke, J., Couchman, C., Couyoumtzeli, R. L., Coxe, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, A., de Roeck, P., Dervan, K., Desch, B., Diene, M. S., Dixit, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, P. G., Estabrook, E., Etzion, F., Fabbri, M., Fanti, L., Fold, P., Ferrari, F., Fiedler, I., Fleck, M., Ford, A., Frey, A., Furtje, D. I., Futyan, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, D., Glenzinski, J., Goldberg, C., Grandi, K., Graham, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, C., Hajdu, G. G., Hanson, M., Hansroul, M., Hapke, K., Harder, A., Harel, C. K., Hargrove, M., Harin Dirac, A., Hauke, M., Hauschild, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, M. D., Hildreth, J. C., Hill, A., Hocker, I., Hoffman, R. J., Homer, A. K., Honma, D., Horvath, K. R., Hossain, R., Howard, P., Huntemeyer, P., Igo Kemene, K., Ishii, F. R., Jacob, A., Jawahery, H., Jeremie, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, K., Klein, A., Klier, T., Kobayashi, N., Kobel, T. P., Kokott, S., Komamiya, R. V., Kowalewski, T., Kre, P., Krieger, J., von Krogh, T., Kuhl, M., Kupper, P., Kyberd, G. D., Lafferty, H., Landsman, D., Lanske, I., Lawson, J. G., Layter, A., Leiu, D., Lellouch, J., Lett, L., Levinson, R., Liebisch, J., Lillich, B., List, C., Littlewood, A. W., Lloyd, S. L., Lloyd, F. K., Loebinger, G. D., Long, M. J., Losty, J., Lu, J., Ludwig, A., Macchiolo, A., Macpherson, W., Mader, M., Mannelli, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Martinez, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Hiendez Lorenzo, F. S., Merritt, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, W., Mohr, A., Montanari, T., Mori, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, F. C., Oakham, F., Odorici, H. O., Ogren, A., Oh, A., Okpara, M. J., Oreglia, S., Orito, G., Pasztor, J. R., Pater, G. N., Patrick, J., Patt, P., Pfeifenschneider, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, O., Pooth, M., Przybycien, A., Quadt, C., Rembser, H., Rick, S. A., Robin, N., Rodning, J. M., Roney, S., Rosati, K., Roscoe, A. M., Rossi, Y., Rozen, K., Runge, O., Runolfsson, D. R., Rust, K., Sach, T., Saeki, O., Sahr, E. K., G., C., Sbarra, A. D., Schaile, O., Schaile, P., Scharff Hansen, S., Schmitt, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, G. P., Siroli, A., Skuja, A. M., Smith, G. A., Snow, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, M., Sproston, A., Stahl, K., Stephen, K., Stoll, D., Strom, R., Strohmer, B., Surrow, S. D., Talbot, S., Tarem, R. J., Taylor, R., Teuscher, M., Thiergen, J., Thoma, M. A., Thomson, E., Torrence, S., Tower, T., Trefzger, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, P., Vannerem, M., Verzocchi, H., Vo, J., Vossebeld, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, J. S., White, G. W., Wilson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, and D., Zer Zion
Subjects: Physics, Particle physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, FOS: Physical sciences, Branching (polymer chemistry), 01 natural sciences, Charged particle, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Ionization energy, 010306 general physics, Engineering (miscellaneous), Particle Physics - Experiment
Abstract: From an analysis of the ionisation energy loss of charged particles selected from 110326 e+e- -> tau+tau- candidates recorded by the OPAL detector at e+e- centre-of-mass energies near the Z0 resonance, we determine the one-prong tau decay branching ratios: Br(tau- -> nu_tau K- >=0h0) = 1.528 +- 0.039 +- 0.040 % Br(tau- -> nu_tau K-) = 0.658 +- 0.024 +- 0.029 % where the h0 notation refers to a pi0, an eta, a K^0_S, or a K^0_L, and where the first uncertainty is statistical and the second is systematic., 30 pages, 5 figures, submitted to Eur. Phys. J. C

30. Precise determination of the Z resonance parameters at LEP: 'Zedometry'

Author: Abbiendi, G., Ainsley, C., Åkesson, P. F., Alexander, G., Allison, J., Anagnostou, G., Anderson, K. J., Arcelli, S., Asai, S., Ashby, S. F., Axen, D., Azuelos, G., Bailey, I., Ball, A. H., Barberio, E., Barlow, R. J., Behnke, T., Bell, K. W., Bella, G., Bellerive, A., Benelli, G., Bentvelsen, S., Beeston, C., Bethke, S., Biebel, O., Bloodworth, I. J., Boeriu, O., Bock, P., Böhme, J., Bonacorsi, D., Boutemeur, M., Braibant, S., Bright-Thomas, P., Brigliadori, L., Brown, R. M., Burckhart, H. J., Cammin, J., Capiluppi, P., Carnegie, R. K., Caron, B., Carter, A. A., Carter, J. R., Chang, C. Y., Charlton, D. G., Clarke, P. E. L., Clay, E., Cohen, I., Conboy, J. E., Cooke, O. C., Couchman, J., Coxe, R. L., Csilling, A., Cuffiani, M., Dado, S., Dallavalle, G. M., Dallison, S., Darling, C., Roeck, A., Wolf, E. A., Dervan, P., Desch, K., Dienes, B., Dixit, M. S., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I. P., Estabrooks, P. G., Etzion, E., Fabbri, F., Fanti, M., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Foucher, M., Frey, A., Fürtjes, A., Futyan, D. I., Gagnon, P., Gascon, J., Gascon-Shotkin, S. M., Gary, J. W., Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Giacomelli, R., Glenzinski, D., Goldberg, J., Grandi, C., Graham, K., Gross, E., Grunhaus, J., Gruwé, M., Günther, P. O., Hajdu, C., Hanson, G. G., Harder, K., Harel, A., Harin-Dirac, M., Hart, P. A., Hauschild, M., Hawkes, C. M., Hawkings, R., Hemingway, R. J., Hensel, C., Herten, G., Heuer, R. D., Hildreth, M. D., Hill, J. C., Hillier, S. J., Hocker, A., Hoffman, K., Homer, R. J., Honma, A. K., Horváth, D., Hossain, K. R., Howard, R., Hüntemeyer, P., Igo-Kemenes, P., Ishii, K., Jacob, F. R., Jawahery, A., Jeremie, H., Jones, C. R., Jovanovic, P., Junk, T. R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kartvelishvili, V., Kiyotomo Kawagoe, Kawamoto, T., Keeler, R. K., Kellogg, R. G., Kennedy, B. W., Kim, D. H., Kirk, J., Klein, K., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Kokott, T. P., Komamiya, S., Kowalewski, R. V., Kress, T., Krieger, P., Krogh, J., Krop, D., Kuhl, T., Kupper, M., Kyberd, P., Lafferty, G. D., Lahmann, R., Lai, W. P., Landsman, H., Lanske, D., Lauber, J., Lawson, I., Layter, J. G., Lee, A. M., Leins, A., Lellouch, D., Letts, J., Levinson, L., Liebisch, R., Lillich, J., Littlewood, C., Lloyd, A. W., Lloyd, S. L., Loebinger, F. K., Long, G. D., Losty, M. J., Lu, J., Ludwig, J., Macchiolo, A., Macpherson, A., Mader, W., Mannelli, M., Marcellini, S., Marchant, T. E., Martin, A. J., Martin, J. P., Martinez, G., Mashimo, T., Mättig, P., Mcdonald, W. J., Mckenna, J., Mcmahon, T. J., Mcpherson, R. A., Meijers, F., Mendez-Lorenzo, P., Menges, W., Menke, S., Merritt, F. S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D. J., Mohr, W., Montanari, A., Mori, T., Müller, U., Nagai, K., Nakamura, I., Neal, H. A., Nisius, R., O Neale, S. W., Oakham, F. G., Odorici, F., Oh, A., Okpara, A., Oldershaw, N. J., Oreglia, M. J., Orito, S., Palmonari, F., Pásztor, G., Pater, J. R., Patrick, G. N., Pfeifenschneider, P., Pilcher, J. E., Pinfold, J., Plane, D. E., Poli, B., Polok, J., Pooth, O., Przybycień, M., Quadt, A., Quast, G., Rabbertz, K., Raith, B., Rembser, C., Renkel, P., Rick, H., Rodning, N., Roney, J. M., Rosati, S., Roscoe, K., Rossi, A. M., Rozen, Y., Runge, K., Runolfsson, O., Rust, D. R., Sachs, K., Saeki, T., Sahr, O., Sarkisyan, E. K. G., Sbarra, C., Schaile, A. D., Schaile, O., Scharff-Hansen, P., Schmitt, B., Schröder, M., Schumacher, M., Schwick, C., Scott, W. G., Seuster, R., Shears, T. G., Shen, B. C., Shepherd-Themistocleous, C. H., Sherwood, P., Siroli, G. P., Skuja, A., Smith, A. M., Smith, T. J., Snow, G. A., Sobie, R., Söldner-Rembold, S., Spagnolo, S., Springer, R. W., Sproston, M., Stahl, A., Stephens, K., Stoll, K., Strom, D., Ströhmer, R., Stumpf, L., Surrow, B., Talbot, S. D., Tarem, S., Taylor, R. J., Teuscher, R., Tecchio, M., Thomas, J., Thomson, M. A., Towers, S., Toya, D., Trefzger, T., Trigger, I., Trócsányi, Z., Tsukamoto, T., Tsur, E., Turner-Watson, M. F., Ueda, I., Vachon, B., Vannerem, P., Verzocchi, M., Vokurka, E. H., Voss, H., Vossebeld, J., Wagner, A., Wagner, D. L., Waller, D., Ward, C. P., Ward, D. R., Watkins, P. M., Watson, A. T., Watson, N. K., Wells, P. S., Wengler, T., Wermes, N., Wetterling, D., White, J. S., Wilson, G. W., Wilson, J. A., Wyatt, T. R., Yamashita, S., Zacek, V., Zer-Zion, D., G., Abbiendi, C., Ainsley, P. F., Akesson, G., Alexander, J., Allison, G., Anagnostou, K. J., Anderson, S., Arcelli, S., Asai, S. F., Ashby, D., Axen, G., Azuelo, I., Bailey, A. H., Ball, E., Barberio, R. J., Barlow, T., Behnke, K. W., Bell, G., Bella, A., Bellerive, G., Benelli, S., Bentvelsen, C., Beeston, S., Bethke, O., Biebel, I. J., Bloodworth, O., Boeriu, P., Bock, J., Bohme, D., Bonacorsi, M., Boutemeur, S., Braibant, P., Bright Thoma, L., Brigliadori, R. M., Brown, H. J., Burckhart, J., Cammin, P., Capiluppi, R. K., Carnegie, B., Caron, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, P. E., L., E., Clay, I., Cohen, J. E., Conboy, O. C., Cooke, J., Couchman, R. L., Coxe, A., Csilling, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, C., Darling, A., De Roeck, E. A., De, P., Dervan, K., Desch, B., Diene, M. S., Dixit, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, P. G., Estabrook, F., Etzion, F., Fabbri, M., Fanti, L., Feld, P., Ferrari, F., Fiedler, I., Fleck, M., Ford, M., Foucher, A., Frey, A., Furtje, D. I., Futyan, P., Gagnon, J., Gascon, S. M., Gascon Shotkin, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, R., Giacomelli, D., Glenzinski, J., Goldberg, C., Grandi, K., Graham, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, C., Hajdu, G. G., Hanson, K., Harder, A., Harel, M., Harin Dirac, P. A., Hart, M., Hauschild, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, M. D., Hildreth, J. C., Hill, S. J., Hillier, A., Hocker, K., Hoffman, R. J., Homer, A. K., Honma, D., Horvath, K. R., Hossain, R., Howard, P., Huntemeyer, P., Igo Kemene, K., Ishii, F. R., Jacob, A., Jawahery, H., Jeremie, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, J., Kirk, K., Klein, A., Klier, S., Kluth, T., Kobayashi, M., Kobel, T. P., Kokott, S., Komamiya, R. V., Kowalewski, T., Kre, P., Krieger, J., von Krogh, D., Krop, T., Kuhl, M., Kupper, P., Kyberd, G. D., Lafferty, R., Lahmann, W. P., Lai, H., Landsman, D., Lanske, J., Lauber, I., Lawson, J. G., Layter, A. M., Lec, A., Lein, D., Lellouch, J., Lett, L., Levinson, R., Liebisch, J., Lillich, C., Littlewood, A. W., Lloyd, S. L., Lloyd, F. K., Loebinger, G. D., Long, M. J., Losty, J., Lu, J., Ludwig, A., Macchiolo, A., Macpherson, W., Mader, M., Mannelli, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Martinez, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, W., Menge, S., Menke, F. S., Merritt, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, W., Mohr, A., Montanari, T., Mori, U., Muller, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, F. G., Oakham, F., Odorici, A., Oh, A., Okpara, N. J., Oldershaw, M. J., Oreglia, S., Orito, F., Palmonari, G., Pasztor, J. R., Pater, G. N., Patrick, P., Pfeifenschneider, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, O., Pooth, M., Przybycien, A., Quadt, G., Quast, K., Rabbertz, B., Raith, C., Rembser, P., Renkel, H., Rick, N., Rodning, J. M., Roney, S., Rosati, K., Roscoe, A. M., Rossi, Y., Rozen, K., Runge, O., Runolfsson, D. R., Rust, K., Sach, T., Saeki, O., Sahr, E. K., G., C., Sbarra, A. D., Schaile, O., Schaile, P., Scharff Hansen, B., Schmitt, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, G. P., Siroli, A., Skuja, A. M., Smith, T. J., Smith, G. A., Snow, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, R. W., Springer, M., Sproston, A., Stahl, K., Stephen, K., Stoll, D., Strom, R., Strohmer, L., Stumpf, B., Surrow, S. D., Talbot, S., Tarem, R. J., Taylor, R., Teuscher, M., Tecchio, J., Thoma, M. A., Thomson, S., Tower, D., Toya, T., Trefzger, I., Trigger, Z., Troscanyi, T., Tsukamoto, E., Tsur, M. F., Turner Watson, I., Ueda, B., Vachon, P., Vannerem, M., Verzocchi, E. H., Vokurka, H., Vo, J., Vossebeld, A., Wagner, D. L., Wagner, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, J. S., White, G. W., Wilson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, and D., Zer Zion
Subjects: Physics, Particle physics, Top quark, Physics and Astronomy (miscellaneous), Hadron, Detector, FOS: Physical sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Strong coupling, Radiative transfer, Higgs boson, High Energy Physics::Experiment, Neutrino, Engineering (miscellaneous), Particle Physics - Experiment, Lepton
Abstract: This final analysis of hadronic and leptonic cross-sections and of leptonic forward-backward asymmetries in e+e- collisions with the OPAL detector makes use of the full LEP1 data sample comprising 161 pb^-1 of integrated luminosity and 4.5 x 10^6 selected Z decays. An interpretation of the data in terms of contributions from pure Z exchange and from Z-gamma interference allows the parameters of the Z resonance to be determined in a model-independent way. Our results are in good agreement with lepton universality and consistent with the vector and axial-vector couplings predicted in the Standard Model. A fit to the complete dataset yields the fundamental Z resonance parameters: mZ = 91.1852 +- 0.0030 GeV, GZ = 2.4948 +- 0.0041 GeV, s0h = 41.501 +- 0.055 nb, Rl = 20.823 +- 0.044, and Afb0l = 0.0145 +- 0.0017. Transforming these parameters gives a measurement of the ratio between the decay width into invisible particles and the width to a single species of charged lepton, Ginv/Gl = 5.942 +- 0.027. Attributing the entire invisible width to neutrino decays and assuming the Standard Model couplings for neutrinos, this translates into a measurement of the effective number of light neutrino species, N_nu = 2.984 +- 0.013. Interpreting the data within the context of the Standard Model allows the mass of the top quark, mt = 162 +29-16 GeV, to be determined through its influence on radiative corrections. Alternatively, utilising the direct external measurement of mt as an additional constraint leads to a measurement of the strong coupling constant and the mass of the Higgs boson: alfa_s(mZ) = 0.127 +- 0.005 and mH = 390 +750-280 GeV., 119 pages, 26 figures, submitted to Eur. Phys. J. C

31. Search for unstable heavy and excited leptons at LEP2

Author: G. Abbiendi, K. Ackerstaff, P. F. Akesson, G. Alexander, J. Allison, K. J. Anderson, S. Arcelli, S. Asai, S. F. Ashby, D. Axen, G. Azuelos, I. Bailey, A. H. Ball, E. Barberio, R. J. Barlow, J. R. Batley, S. Baumann, T. Behnke, K. W. Bell, G. Bella, A. Bellerive, S. Bentvelsen, S. Bethke, S. Betts, O. Biebel, A. Biguzzi, I. J. Bloodworth, P. Bock, J. Bohme, O. Boeriu, D. Bonacorsi, M. Boutemeur, S. Braibant, P. Bright Thomas, L. Brigliadori, R. M. Brown, H. J. Burckhart, P. Capiluppi, R. K. Carnegie, A. A. Carter, J. R. Carter, C. Y. Chang, D. G. Charlton, D. Chrisman, C. Ciocca, P. E. L., E. Clay, I. Cohen, J. E. Conboy, O. C. Cooke, J. Couchman, C. Couyoumtzelis, R. L. Coxe, M. Cuffiani, S. Dado, G. M. Dallavalle, S. Dallison, R. Davis, A. de Roeck, P. Dervan, K. Desch, B. Dienes, M. S. Dixit, M. Donkers, J. Dubbert, E. Duchovni, G. Duckeck, I. P. Duerdoth, P. G. Estabrooks, E. Etzion, F. Fabbri, A. Fanfani, M. Fanti, A. A. Faust, L. Feld, P. Ferrari, F. Fiedler, M. Fierro, I. Fleck, A. Frey, A. Furtjes, D. I. Futyan, P. Gagnon, J. W. Gary, G. Gaycken, C. Geich Gimbel, G. Giacomelli, P. Giacomelli, D. M. Gingrich, D. Glenzinski, J. Goldberg, W. Gorn, C. Grandi, K. Graham, E. Gross, J. Grunhaus, M. Gruwe, C. Hajdu, G. G. Hanson, M. Hansroul, M. Hapke, K. Harder, A. Harel, C. K. Hargrove, M. Harin Dirac, M. Hauschild, C. M. Hawkes, R. Hawkings, R. J. Hemingway, G. Herten, R. D. Heuer, M. D. Hildreth, J. C. Hill, P. R. Hobson, A. Hocker, K. Hoffman, R. J. Homer, A. K. Honma, D. Horvath, K. R. Hossain, R. Howard, P. Huntemeyer, P. Igo Kemenes, D. C. Imrie, K. Ishii, F. R. Jacob, A. Jawahery, H. Jeremie, M. Jimack, C. R. Jones, P. Jovanovic, T. R. Junk, N. Kanaya, J. Kanzaki, G. Karapetian, D. Karlen, V. Kartvelishvili, K. Kawagoe, T. Kawamoto, P. I. Kayal, R. K. Keeler, R. G. Kellogg, B. W. Kennedy, D. H. Kim, A. Klier, T. Kobayashi, M. Kobel, T. P. Kokott, M. Kolrep, S. Komamiya, R. V. Kowalewski, T. Kress, P. Krieger, J. von Krogh, T. Kuhl, M. Kupper, P. Kyberd, G. D. Lafferty, H. Landsman, D. Lanske, J. Lauber, I. Lawson, J. G. Layter, D. Lellouch, J. Letts, L. Levinson, R. Liebisch, J. Lillich, B. List, C. Littlewood, A. W. Lloyd, S. L. Lloyd, F. K. Loebinger, G. D. Long, M. J. Losty, J. Lu, J. Ludwig, A. Macchiolo, A. Macpherson, W. Mader, M. Mannelli, S. Marcellini, T. E. Marchant, A. J. Martin, J. P. Martin, G. Martinez, T. Mashimo, P. Mattig, W. J. McDonald, J. McKenna, E. A. Mckigney, T. J. McMahon, R. A. McPherson, F. Meijers, P. Mendez Lorenzo, F. S. Merritt, H. Mes, I. Meyer, A. Michelini, S. Mihara, G. Mikenberg, D. J. Miller, W. Mohr, A. Montanari, T. Mori, K. Nagai, I. Nakamura, H. A. Neal, R. Nisius, S. W. O'Neale, F. G. Oakham, F. Odorici, H. O. Ogren, A. Okpara, M. J. Oreglia, S. Orito, G. Pasztor, J. R. Pater, G. N. Patrick, J. Patt, R. Perez Ochoa, S. Petzold, P. Pfeifenschneider, J. E. Pilcher, J. Pinfold, D. E. Plane, B. Poli, J. Polok, M. Przybycien, A. Quadt, C. Rembser, H. Rick, S. A. Robins, N. Rodning, J. M. Roney, S. Rosati, K. Roscoe, A. M. Rossi, Y. Rozen, K. Runge, O. Runolfsson, D. R. Rust, K. Sachs, T. Saeki, O. Sahr, W. M. Sang, E. K. G., C. Sbarra, A. D. Schaile, O. Schaile, P. Scharff Hansen, J. Schieck, S. Schmitt, A. Schoning, M. Schroder, M. Schumacher, C. Schwick, W. G. Scott, R. Seuster, T. G. Shears, B. C. Shen, C. H. Shepherd Themistocleous, P. Sherwood, G. P. Siroli, A. Skuja, A. M. Smith, G. A. Snow, R. Sobie, S. Soldner Rembold, M. Sproston, A. Stahl, K. Stephens, K. Stoll, D. Strom, R. Strohmer, B. Surrow, R. Tafirout, S. D. Talbot, P. Taras, S. Tarem, R. Teuscher, M. Thiergen, J. Thomas, M. A. Thomson, E. Torrence, S. Towers, T. Trefzger, I. Trigger, Z. Trocsanyi, E. Tsur, M. F. Turner Watson, I. Ueda, R. Van Kooten, P. Vannerem, M. Verzocchi, H. Voss, F. Wackerle, D. Waller, C. P. Ward, D. R. Ward, P. M. Watkins, A. T. Watson, N. K. Watson, P. S. Wells, T. Wengler, N. Wermes, D. Wetterling, J. S. White, G. W. Wilson, J. A. Wilson, T. R. Wyatt, S. Yamashita, V. Zacek, D. Zer Zion, SPAGNOLO, Stefania Antonia, G., Abbiendi, K., Ackerstaff, P. F., Akesson, G., Alexander, J., Allison, K. J., Anderson, S., Arcelli, S., Asai, S. F., Ashby, D., Axen, G., Azuelo, I., Bailey, A. H., Ball, E., Barberio, R. J., Barlow, J. R., Batley, S., Baumann, T., Behnke, K. W., Bell, G., Bella, A., Bellerive, S., Bentvelsen, S., Bethke, S., Bett, O., Biebel, A., Biguzzi, I. J., Bloodworth, P., Bock, J., Bohme, O., Boeriu, D., Bonacorsi, M., Boutemeur, S., Braibant, P., Bright Thoma, L., Brigliadori, R. M., Brown, H. J., Burckhart, P., Capiluppi, R. K., Carnegie, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, D., Chrisman, C., Ciocca, P. E., L., E., Clay, I., Cohen, J. E., Conboy, O. C., Cooke, J., Couchman, C., Couyoumtzeli, R. L., Coxe, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, R., Davi, A., de Roeck, P., Dervan, K., Desch, B., Diene, M. S., Dixit, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, P. G., Estabrook, E., Etzion, F., Fabbri, A., Fanfani, M., Fanti, A. A., Faust, L., Feld, P., Ferrari, F., Fiedler, M., Fierro, I., Fleck, A., Frey, A., Furtje, D. I., Futyan, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, D. M., Gingrich, D., Glenzinski, J., Goldberg, W., Gorn, C., Grandi, K., Graham, E., Gro, J., Grunhau, M., Gruwe, C., Hajdu, G. G., Hanson, M., Hansroul, M., Hapke, K., Harder, A., Harel, C. K., Hargrove, M., Harin Dirac, M., Hauschild, C. M., Hawke, R., Hawking, R. J., Hemingway, G., Herten, R. D., Heuer, M. D., Hildreth, J. C., Hill, P. R., Hobson, A., Hocker, K., Hoffman, R. J., Homer, A. K., Honma, D., Horvath, K. R., Hossain, R., Howard, P., Huntemeyer, P., Igo Kemene, D. C., Imrie, K., Ishii, F. R., Jacob, A., Jawahery, H., Jeremie, M., Jimack, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, P. I., Kayal, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, A., Klier, T., Kobayashi, M., Kobel, T. P., Kokott, M., Kolrep, S., Komamiya, R. V., Kowalewski, T., Kre, P., Krieger, J., von Krogh, T., Kuhl, M., Kupper, P., Kyberd, G. D., Lafferty, H., Landsman, D., Lanske, J., Lauber, I., Lawson, J. G., Layter, D., Lellouch, J., Lett, L., Levinson, R., Liebisch, J., Lillich, B., List, C., Littlewood, A. W., Lloyd, S. L., Lloyd, F. K., Loebinger, G. D., Long, M. J., Losty, J., Lu, J., Ludwig, A., Macchiolo, A., Macpherson, W., Mader, M., Mannelli, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Martinez, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, E. A., Mckigney, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, F. S., Merritt, H., Me, I., Meyer, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, W., Mohr, A., Montanari, T., Mori, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, F. G., Oakham, F., Odorici, H. O., Ogren, A., Okpara, M. J., Oreglia, S., Orito, G., Pasztor, J. R., Pater, G. N., Patrick, J., Patt, R., Perez Ochoa, S., Petzold, P., Pfeifenschneider, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, M., Przybycien, A., Quadt, C., Rembser, H., Rick, S. A., Robin, N., Rodning, J. M., Roney, S., Rosati, K., Roscoe, A. M., Rossi, Y., Rozen, K., Runge, O., Runolfsson, D. R., Rust, K., Sach, T., Saeki, O., Sahr, W. M., Sang, E. K., G., C., Sbarra, A. D., Schaile, O., Schaile, P., Scharff Hansen, J., Schieck, S., Schmitt, A., Schoning, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, G. P., Siroli, A., Skuja, A. M., Smith, G. A., Snow, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, M., Sproston, A., Stahl, K., Stephen, K., Stoll, D., Strom, R., Strohmer, B., Surrow, R., Tafirout, S. D., Talbot, P., Tara, S., Tarem, R., Teuscher, M., Thiergen, J., Thoma, M. A., Thomson, E., Torrence, S., Tower, T., Trefzger, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, R., Van Kooten, P., Vannerem, M., Verzocchi, H., Vo, F., Wackerle, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, J. S., White, G. W., Wilson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, and D., Zer Zion
Subjects: Coupling constant, Physics, Particle physics, Physics and Astronomy (miscellaneous), Electron–positron annihilation, High Energy Physics::Phenomenology, Coupling (probability), Luminosity, Nuclear physics, Pair production, Excited state, High Energy Physics::Experiment, Engineering (miscellaneous), Particle Physics - Experiment, Lepton, Bhabha scattering
Abstract: Searches for unstable neutral and charged heavy leptons, N and L+-, and for excited states of neutral and charged leptons, nu*, e*, mu*, and tau*, have been performed in e+e- collisions using data collected by the OPAL detector at LEP. The data analysed correspond to an integrated luminosity of about 58pb-1 at a centre-of-mass energy of 183GeV, and about 10pb-1 each at 161GeV and 172GeV. No evidence for new particles was found. Lower limits on the masses of unstable heavy and excited leptons are derived. From the analysis of charged-current, neutral-current, and photonic decays of singly produced excited leptons, upper limits are determined for the ratio of the coupling to the compositeness scale, f/Lambda, for masses up to the kinematic limit. For excited leptons, the limits are established independently of the relative values of the coupling constants f and f'. Searches for unstable neutral and charged heavy leptons, N and L+-, and for excited states of neutral and charged leptons, nu*, e*, mu*, and tau*, have been performed in e+e- collisions using data collected by the OPAL detector at LEP. The data analysed correspond to an integrated luminosity of about 58pb-1 at a centre-of-mass energy of 183GeV, and about 10pb-1 each at 161GeV and 172GeV. No evidence for new particles was found. Lower limits on the masses of unstable heavy and excited leptons are derived. From the analysis of charged-current, neutral-current, and photonic decays of singly produced excited leptons, upper limits are determined for the ratio of the coupling to the compositeness scale, f/Lambda, for masses up to the kinematic limit. For excited leptons, the limits are established independently of the relative values of the coupling constants f and f'.

32. Total hadronic cross-section of photon-photon interactions at LEP

Author: Abbiendi, G., Ackerstaff, K., Alexander, G., Allison, J., Altekamp, N., Anderson, K. J., Anderson, S., Arcelli, S., Asai, S., Ashby, S. F., Axen, D., Azuelos, G., Ball, A. H., Barberio, E., Barillari, T., Roger Barlow, Batley, J. R., Baumann, S., Bechtluft, J., Behnke, T., Bell, K. W., Bella, G., Bellerive, A., Bentvelsen, S., Bethke, S., Betts, S., Biebel, O., Biguzzi, A., Bloodworth, I. J., Bock, P., Böhme, J., Bonacorsi, D., Boutemeur, M., Braibant, S., Bright-Thomas, P., Brigliadori, L., Brown, R. M., Burckhart, H. J., Capiluppi, P., Carnegie, R. K., Carter, A. A., Carter, J. R., Chang, C. Y., Charlton, D. G., Chrisman, D., Ciocca, C., Clarke, P. E. L., Clay, E., Cohen, I., Conboy, J. E., Cooke, O. C., Couchman, J., Couyoumtzelis, C., Coxe, R. L., Cuffiani, M., Dado, S., Dallavalle, G. M., Davis, R., Jong, S., Roeck, A., Dervan, P., Desch, K., Dienes, B., Dixit, M. S., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I. P., Estabrooks, P. G., Etzion, E., Fabbri, F., Fanfani, A., Fanti, M., Faust, A. A., Feld, L., Fiedler, F., Fierro, M., Fleck, I., Frey, A., Fürtjes, A., Futyan, D. I., Gagnon, P., Gary, J. W., Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Gibson, V., Gibson, W. R., Gingrich, D. M., Glenzinski, D., Goldberg, J., Gorn, W., Grandi, C., Graham, K., Gross, E., Grunhaus, J., Gruwé, M., Hajdu, C., Hanson, G. G., Hansroul, M., Hapke, M., Harder, K., Harel, A., Hargrove, C. K., Harin-Dirac, M., Hauschild, M., Hawkes, C. M., Hawkings, R., Hemingway, R. J., Herten, G., Heuer, R. D., Hildreth, M. D., Hill, J. C., Hobson, P. R., Hocker, A., Hoffman, K., Homer, R. J., Honma, A. K., Horváth, D., Hossain, K. R., Howard, R., Hüntemeyer, P., Igo-Kemenes, P., Imrie, D. C., Ishii, K., Jacob, F. R., Jawahery, A., Jeremie, H., Jimack, M., Jones, C. R., Jovanovic, P., Junk, T. R., Kanaya, N., Kanzaki, J., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Kayal, P. I., Keeler, R. K., Kellogg, R. G., Kennedy, B. W., Kim, D. H., Klier, A., Kobayashi, T., Kobel, M., Kokott, T. P., Kolrep, M., Komamiya, S., Kowalewski, R. V., Kress, T., Krieger, P., Krogh, J., Kuhl, T., Kyberd, P., Lafferty, G. D., Landsman, H., Lanske, D., Lauber, J., Lawson, I., Layter, J. G., Lellouch, D., Letts, J., Levinson, L., Liebisch, R., List, B., Littlewood, C., Lloyd, A. W., Lloyd, S. L., Loebinger, F. K., Long, G. D., Losty, M. J., Lu, J., Ludwig, J., Liu, D., Macchiolo, A., Macpherson, A., Mader, W., Mannelli, M., Marcellini, S., Martin, A. J., Martin, J. P., Martinez, G., Mashimo, T., Mättig, P., Mcdonald, W. J., Mckenna, J., Mckigney, E. A., Mcmahon, T. J., Mcpherson, R. A., Meijers, F., Mendez-Lorenzo, P., Merritt, F. S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D. J., Mohr, W., Montanari, A., Mori, T., Nagai, K., Nakamura, I., Neal, H. A., Nisius, R., O Neale, S. W., Oakham, F. G., Odorici, F., Ogren, H. O., Okpara, A., Oreglia, M. J., Orito, S., Pásztor, G., Pater, J. R., Patrick, G. N., Patt, J., Perez-Ochoa, R., Petzold, S., Pfeifenschneider, P., Pilcher, J. E., Pinfold, J., Plane, D. E., Poffenberger, P., Poli, B., Polok, J., Przybycień, M., Quadt, A., Rembser, C., Rick, H., Robertson, S., Robins, S. A., Rodning, N., Roney, J. M., Rosati, S., Roscoe, K., Rossi, A. M., Rozen, Y., Runge, K., Runolfsson, O., Rust, D. R., Sachs, K., Saeki, T., Sahr, O., Sang, W. M., Sarkisyan, E. K. G., Sbarra, C., Schaile, A. D., Schaile, O., Scharff-Hansen, P., Schieck, J., Schmitt, S., Schöning, A., Schroder, M., Schumacher, M., Schwick, C., Scott, W. G., Seuster, R., Shears, T. G., Shen, B. C., Shepherd-Themistocleous, C. H., Sherwood, P., Siroli, G. P., Sittler, A., Skuja, A., Smith, A. M., Snow, G. A., Sobie, R., Söldner-Rembold, S., Spagnolo, S., Sproston, M., Stahl, A., Stephens, K., Steuerer, J., Stoll, K., Strom, D., Ströhmer, R., Surrow, B., Talbot, S. D., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomas, J., Thomson, M. A., Torrence, E., Towers, S., Trigger, I., Trócsányi, Z., Tsur, E., Turner-Watson, M. F., Ueda, I., Kooten, R., Vannerem, P., Verzocchi, M., Voss, H., Wäckerle, F., Wagner, A., Ward, C. P., Ward, D. R., Watkins, P. M., Watson, A. T., Watson, N. K., Wells, P. S., Wermes, N., Wetterling, D., White, J. S., Wilson, G. W., Wilson, J. A., Wyatt, T. R., Yamashita, S., Zacek, V., Zer-Zion, D., G., Abbiendi, K., Ackerstaff, G., Alexander, J., Allison, N., Altekamp, K. J., Anderson, S., Anderson, S., Arcelli, S., Asai, S. F., Ashby, D., Axen, G., Azuelo, A. H., Ball, E., Barberio, T., Barillari, R. J., Barlow, J. R., Batley, S., Baumann, J., Bechtluft, T., Behnke, K. W., Bell, G., Bella, A., Bellerive, S., Bentvelsen, S., Bethke, S., Bett, O., Biebel, A., Biguzzi, I. J., Bloodworth, P., Bock, J., Bohme, D., Bonacorsi, M., Boutemeur, S., Braibant, P., Bright Thoma, L., Brigliadori, R. M., Brown, H. J., Burckhart, P., Capiluppi, R. K., Carnegie, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, D., Chrisman, C., Ciocca, P. E., L., E., Clay, I., Cohen, J. E., Conboy, O. C., Cooke, J., Couchman, C., Couyoumtzeli, R. L., Coxe, M., Cuffiani, S., Dado, G. M., Dallavalle, R., Davi, S., De Jong, A., de Roeck, P., Dervan, K., Desch, B., Diene, M. S., Dixit, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, P. G., Estabrook, E., Etzion, F., Fabbri, A., Fanfani, M., Fanti, A. A., Faust, L., Feld, F., Fiedler, M., Fierro, P. I., Fleck, A., Frey, A., Furtje, D. I., Futyan, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, V., Gibson, W. R., Gibson, D. M., Gingrich, D., Glenzinski, J., Goldberg, W., Gorn, C., Grandi, K., Graham, E., Gro, J., Grunhau, M., Gruwe, C., Hajdu, G. G., Hanson, M., Hansroul, M., Hapke, K., Harder, A., Harel, C. K., Hargrove, M., Harin Dirac, M., Hauschild, C. M., Hawke, R., Hawking, R. J., Hemingway, G., Herten, R. D., Heuer, M. D., Hildreth, J. C., Hill, P. R., Hobson, A., Hocker, K., Hoffman, R. J., Homer, A. K., Honma, D., Horvath, K. R., Hossain, R., Howard, P., Huntemeyer, P., Igo Kemene, D. C., Imrie, K., Ishii, F. R., Jacob, A., Jawahery, H., Jeremie, M., Jimack, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, P. I., Kayal, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, A., Klier, T., Kobayashi, M., Kobel, T. P., Kokott, M., Kolrep, S., Komamiya, R. V., Kowalewski, T., Kre, P., Krieger, J., von Krogh, T., Kuhl, P., Kyberd, G. D., Lafferty, H., Landsman, D., Lanske, J., Lauber, I., Lawson, J. G., Layter, D., Lellouch, J., Lett, L., Levinson, R., Liebisch, B., List, C., Littlewood, A. W., Lloyd, S. L., Lloyd, F. K., Loebinger, G. D., Long, M. J., Losty, J., Lu, J., Ludwig, D., Liu, A., Macchiolo, A., Macpherson, W., Mader, M., Mannelli, S., Marcellini, A. J., Martin, J. P., Martin, G., Martinez, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, E. A., Mckigney, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, F. S., Merritt, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, W., Mohr, A., Montanari, T., Mori, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, F. G., Oakham, F., Odorici, H. O., Ogren, A., Okpara, M. J., Oreglia, S., Orito, G., Pasztor, J. R., Pater, G. N., Patrick, J., Patt, R., Perez Ochoa, S., Petzold, P., Pfeifenschneider, J. E., Pilcher, J., Pinfold, D. E., Plane, P., Poffenberger, B., Poli, J., Polok, M., Przybycien, A., Quadt, C., Rembser, H., Rick, S., Robertson, S. A., Robin, N., Rodning, J. M., Roney, S., Rosati, K., Roscoe, A. M., Rossi, Y., Rozen, K., Runge, O., Runolfsson, D. R., Rust, K., Sach, T., Saeki, O., Sahr, W. M., Sang, E. K., G., C., Sbarra, A. D., Schaile, O., Schaile, P., Scharff Hansen, J., Schieck, S., Schmitt, A., Schoning, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, G. P., Siroli, A., Sittler, A., Skuja, A. M., Smith, G. A., Snow, R., Sobie, S., Soldner Rembold, Spagnolo, Stefania Antonia, M., Sproston, A., Stahl, K., Stephen, J., Steuerer, K., Stoll, D., Strom, R., Strohmer, B., Surrow, S. D., Talbot, P., Tara, S., Tarem, R., Teuscher, M., Thiergen, J., Thoma, M. A., Thomson, E., Torrence, S., Tower, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, R., Van Kooten, P., Vannerem, M., Verzocchi, H., Vo, F., Wackerle, A., Wagner, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, N., Werme, D., Wetterling, J. S., White, G. W., Wilson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, and D., Zer Zion
Subjects: Physics, Particle physics, Photon, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Hadron, Photon flux, FOS: Physical sciences, Sigma, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Cross section (physics), Factorization, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), Particle Physics - Experiment, Luminosity function (astronomy)
Abstract: The total hadronic cross-section sigma_gg(W) for the interaction of real photons, gg->hadrons, is measured for gg centre-of-mass energies 10 e+e-g*g* -> e+e- hardrons, using a luminosity function for the photon flux together with form factors for extrapolating to real photons (Q^2=0 GeV^2). The data were taken with the OPAL detector at LEP at e+e- centre-of-mass energies 161, 172 and 183 GeV. The cross-section sigma_gg(W) is compared with Regge factorisation and with the energy dependence observed in gp and pp interactions. The data are also compared to models which predict a faster rise of sigma_gg(W) compared to gp and pp interactions due to additional hard gg interactions not present in hadronic collisions., Comment: 28 pages, LaTeX, including 14 eps figs, submitted to European Physical Jour. nal C. Typo fixed in Table 3

33. Determination of the b quark mass at the Z mass scale

Author: Abbiendi, G., Ainsley, C., Åkesson, P. F., Alexander, G., Allison, J., Anagnostou, G., Anderson, K. J., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Bailey, I., Ball, A. H., Barberio, E., Barlow, R. J., Batley, R. J., Behnke, T., Bell, K. W., Bella, G., Bellerive, A., Bethke, S., Biebel, O., Bloodworth, I. J., Boeriu, O., Bock, P., Böhme, J., Bonacorsi, D., Boutemeur, M., Braibant, S., Brigliadori, L., Brown, R. M., Burckhart, H. J., Cammin, J., Carnegie, R. K., Caron, B., Carter, A. A., Carter, J. R., Chang, C. Y., Charlton, D. G., Clarke, P. E. L., Clay, E., Cohen, I., Couchman, J., Csilling, A., Cuffiani, M., Dado, S., Dallavalle, G. M., Dallison, S., Roeck, A., Wolf, E. A., Dervan, P., Desch, K., Dienes, B., Dixit, M. S., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I. P., Etzion, E., Fabbri, F., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Fürtjes, A., Futyan, D. I., Gagnon, P., Gary, J. W., Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Paolo Giacomelli, Glenzinski, D., Goldberg, J., Grandi, C., Graham, K., Gross, E., Grunhaus, J., Gruwé, M., Günther, P. O., Gupta, A., Hajdu, C., Hanson, G. G., Harder, K., Harel, A., Harin-Dirac, M., Hauschild, M., Hawkes, C. M., Hawkings, R., Hemingway, R. J., Hensel, C., Herten, G., Heuer, R. D., Hill, J. C., Hoffman, K., Homer, R. J., Horváth, D., Hossain, K. R., Howard, R., Hüntemeyer, P., Igo-Kemenes, P., Ishii, K., Jawahery, A., Jeremie, H., Jones, C. R., Jovanovic, P., Junk, T. R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Keeler, R. K., Kellogg, R. G., Kennedy, B. W., Kim, D. H., Klein, K., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Kokott, T. P., Komamiya, S., Kowalewski, R. V., Krämer, T., Kress, T., Krieger, P., Krogh, J., Krop, D., Kuhl, T., Kupper, M., Kyberd, P., Lafferty, G. D., Landsman, H., Lanske, D., Lawson, I., Layter, J. G., Leins, A., Lellouch, D., Letts, J., Levinson, L., Liebisch, R., Lillich, J., Littlewood, C., Lloyd, A. W., Lloyd, S. L., Loebinger, F. K., Long, G. D., Losty, M. J., Lu, J., Ludwig, J., Macchiolo, A., Macpherson, A., Mader, W., Marcellini, S., Marchant, T. E., Martin, A. J., Martin, J. P., Martinez, G., Mashimo, T., Mättig, P., Mcdonald, W. J., Mckenna, J., Mcmahon, T. J., Mcpherson, R. A., Meijers, F., Mendez-Lorenzo, P., Menges, W., Merritt, F. S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D. J., Moed, S., Mohr, W., Montanari, A., Mori, T., Nagai, K., Nakamura, I., Neal, H. A., Nisius, R., O Neale, S. W., Oakham, F. G., Odorici, F., Oh, A., Okpara, A., Oreglia, M. J., Orito, S., Pahl, C., Pásztor, G., Pater, J. R., Patrick, G. N., Pilcher, J. E., Pinfold, J., Plane, D. E., Poli, B., Polok, J., Pooth, O., Quadt, A., Rabbertz, K., Rembser, C., Renkel, P., Rick, H., Rodning, N., Roney, J. M., Rosati, S., Roscoe, K., Rozen, Y., Runge, K., Rust, D. R., Sachs, K., Saeki, T., Sahr, O., Sarkisyan, E. K. G., Sbarra, C., Schaile, A. D., Schaile, O., Scharff-Hansen, P., Schröder, M., Schumacher, M., Schwick, C., Scott, W. G., Seuster, R., Shears, T. G., Shen, B. C., Shepherd-Themistocleous, C. H., Sherwood, P., Skuja, A., Smith, A. M., Snow, G. A., Sobie, R., Söldner-Rembold, S., Spagnolo, S., Spano, F., Sproston, M., Stahl, A., Stephens, K., Strom, D., Ströhmer, R., Stumpf, L., Surrow, B., Talbot, S. D., Tarem, S., Tasevsky, M., Taylor, R. J., Teuscher, R., Thomas, J., Thomson, M. A., Torrence, E., Toya, D., Trefzger, T., Trigger, I., Trócsányi, Z., Tsur, E., Turner-Watson, M. F., Ueda, I., Ujvári, B., Vachon, B., Vollmer, C. F., Vannerem, P., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C. P., Ward, D. R., Watkins, P. M., Watson, A. T., Watson, N. K., Wells, P. S., Wengler, T., Wermes, N., Wetterling, D., Wilson, G. W., Wilson, J. A., Wyatt, T. R., Yamashita, S., Zacek, V., Zer-Zion, D., G., Abbiendi, C., Ainsley, P. F., Akesson, G., Alexander, J., Allison, G., Anagnostou, K. J., Anderson, S., Arcelli, S., Asai, D., Axen, G., Azuelo, I., Bailey, A. H., Ball, E., Barberio, R. J., Barlow, R. J., Batley, T., Behnke, K. W., Bell, G., Bella, A., Bellerive, S., Bethke, O., Biebel, I. J., Bloodworth, O., Boeriu, P., Bock, J., Bohme, D., Bonacorsi, M., Boutemeur, S., Braibant, L., Brigliadori, R. M., Brown, H. J., Burckhart, J., Cammin, R. K., Carnegie, B., Caron, A. A., Carter, J. R., Carter, C. Y., Chang, D. G., Charlton, P. E., L., E., Clay, I., Cohen, J., Couchman, A., Csilling, M., Cuffiani, S., Dado, G. M., Dallavalle, S., Dallison, A., De Roeck, E. A., De, P., Dervan, K., Desch, B., Diene, M. S., Dixit, M., Donker, J., Dubbert, E., Duchovni, G., Duckeck, I. P., Duerdoth, E., Etzion, F., Fabbri, L., Feld, P., Ferrari, F., Fiedler, L., Fleck, M., Ford, A., Frey, A., Furtje, D. I., Futyan, P., Gagnon, J. W., Gary, G., Gaycken, C., Geich Gimbel, G., Giacomelli, P., Giacomelli, D., Glenzinski, J., Goldberg, C., Grandi, K., Graham, E., Gro, J., Grunhau, M., Gruwe, P. O., Gunther, A., Gupta, C., Hajdu, G. G., Hanson, K., Harder, A., Harel, M., Harin Dirac, M., Hauschild, C. M., Hawke, R., Hawking, R. J., Hemingway, C., Hensel, G., Herten, R. D., Heuer, J. C., Hill, K., Hoffman, R. J., Homer, D., Horvath, K. R., Hossain, R., Howard, P., Huntemeyer, P., Igo Kemene, K., Ishii, A., Jawahery, H., Jeremie, C. R., Jone, P., Jovanovic, T. R., Junk, N., Kanaya, J., Kanzaki, G., Karapetian, D., Karlen, V., Kartvelishvili, K., Kawagoe, T., Kawamoto, R. K., Keeler, R. G., Kellogg, B. W., Kennedy, D. H., Kim, K., Klein, A., Klier, S., Kluth, T., Kobayashi, M., Kobel, T. P., Kokott, S., Komamiya, R. V., Kowalewski, T., Kramer, T., Kre, P., Krieger, J., von Krogh, D., Krop, T., Kuhl, M., Kupper, P., Kyberd, G. D., Lafferty, H., Landsman, D., Lanske, I., Lawson, J. G., Layter, A., Lein, D., Lellouch, J., Lett, L., Levinson, R., Liebisch, J., Lillich, C., Littlewood, A. W., Lloyd, S. L., Lloyd, F. K., Loebinger, G. D., Long, M. J., Losty, J., Lu, J., Ludwig, A., Macchiolo, A., Macpherson, W., Mader, S., Marcellini, T. E., Marchant, A. J., Martin, J. P., Martin, G., Martinez, T., Mashimo, P., Mattig, W. J., Mcdonald, J., Mckenna, T. J., Mcmahon, R. A., Mcpherson, F., Meijer, P., Mendez Lorenzo, W., Menge, F. S., Merritt, H., Me, A., Michelini, S., Mihara, G., Mikenberg, D. J., Miller, S., Moed, W., Mohr, A., Montanari, T., Mori, K., Nagai, I., Nakamura, H. A., Neal, R., Nisiu, S. W., O'Neale, F. G., Oakham, F., Odorici, A., Oh, A., Okpara, M. J., Oreglia, S., Orito, C., Pahl, G., Pasztor, J. R., Pater, G. N., Patrick, J. E., Pilcher, J., Pinfold, D. E., Plane, B., Poli, J., Polok, O., Pooth, A., Quadt, K., Rabbertz, C., Rembser, P., Renkel, H., Rick, N., Rodning, J. M., Roney, S., Rosati, K., Roscoe, Y., Rozen, K., Runge, D. R., Rust, K., Sach, T., Saeki, O., Sahr, E. K., G., C., Sbarra, A. D., Schaile, O., Schaile, P., Scharff Hansen, M., Schroder, M., Schumacher, C., Schwick, W. G., Scott, R., Seuster, T. G., Shear, B. C., Shen, C. H., Shepherd Themistocleou, P., Sherwood, A., Skuja, A. M., Smith, G. A., Snow, R., Sobie, S., Soldner Reinbold, Spagnolo, Stefania Antonia, F., Spano, M., Sproston, A., Stahl, K., Stephen, D., Strom, R., Strohmer, L., Stumpf, B., Surrow, S. D., Talbot, S., Tarem, M., Tasevsky, R. J., Taylor, R., Teuscher, J., Thoma, M. A., Thomson, E., Torrence, D., Toya, T., Trefzger, I., Trigger, Z., Trocsanyi, E., Tsur, M. F., Turner Watson, I., Ueda, B., Ujvari, B., Vachon, C. F., Vollmer, P., Vannerem, M., Verzocchi, H., Vo, J., Vossebeld, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, G. W., Wilson, J. A., Wilson, T. R., Wyatt, S., Yamashita, V., Zacek, and D., Zer Zion
Subjects: Physics, Quantum chromodynamics, Quark, Particle physics, Physics and Astronomy (miscellaneous), Scale (ratio), 010308 nuclear & particles physics, High Energy Physics::Lattice, Hadron, High Energy Physics::Phenomenology, FOS: Physical sciences, Jet (particle physics), 01 natural sciences, Bottom quark, High Energy Physics - Experiment, Charm quark, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Engineering (miscellaneous), Particle Physics - Experiment, Boson
Abstract: In hadronic decays of Z bosons recorded with the OPAL detector at LEP, events containing b quarks were selected using the long lifetime of b flavoured hadrons. Comparing the 3-jet rate in b events with that in d,u,s and c quark events, a significant difference was observed. Using Order(alpha_s squared) calculations for massive quarks, this difference was used to determine the b quark mass in the MSbar renormalisation scheme at the scale of the Z boson mass. By combining the results from seven different jet finders the running b quark mass was determined to be mb(MZ) = (2.67 +/- 0.03(stat) +0.29/-0.37(syst) +/- 0.19(theo.)) GeV. Evolving this value to the b quark mass scale itself yields mb(mb) = (3.95 +0.52/-0.62) GeV, consistent with results obtained at the b quark production threshold. This determination confirms the QCD expectation of a scale dependent quark mass. A constant mass is ruled out by 3.9 standard deviations., 26 pages, 7 figures, Submitted to Eur.Phys.J.C

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33 results on '"K., Sach"'

1. Measurement of the hadronic photon structure function F2γ at LEP2

2. Measurement of the hadronic cross-section for the scattering of two virtual photons at LEP

3. Search for doubly charged Higgs bosons with the OPAL detector at LEP

4. Angular analysis of the muon pair asymmetry at LEP 1

5. Measurement of the mass and width of the W boson in e+e− collisions at 189 GeV

6. Charged multiplicities in Z decays into u, d, and s Quarks

7. Multiplicities of $\pi^0, \eta,\rm K^0$ and of charged particles in quark and gluon jets

8. Electroweak measurements in electron-positron collisions at W-boson-pair energies at LEP

9. Determination of α S using OPAL hadronic event shapes at $\sqrt{s} = 91\mbox{--}209~\mathrm{GeV}$ and resummed NNLO calculations

10. Decay-mode independent searches for new scalar bosons with the OPAL detector at LEP

11. Search for a low mass CP-odd Higgs boson in e+e- collisions with the OPAL detector at LEP2

12. Measurement of the Mass of the W Boson in $e^+ e^-$ collisions using the Fully Leptonic Channel

13. Measurement of Z/gamma* production in compton scattering of quasi-real photons

14. Search for Scalar Top and Scalar Bottom Quarks at LEP

15. Search for Yukawa production of a light neutral Higgs Boson at LEP

16. Search for the Standard Model Higgs Boson with the OPAL Detector at LEP

17. Measurement of the b quark forward-backward asymmetry around the Z0 peak using an inclusive tag

18. Charged Particle Momentum Spectra in e+e- annihilation at sqrt(s) = 192-209 GeV

19. Genuine Correlations of Like-Sign Particles in Hadronic Z0 Decays

20. Measurement of W boson polarisations and CP-violating triple gauge couplings from $W^{+}W^{-}$ production at LEP

21. Two Higgs Doublet Model and Model Independent Interpretation of Neutral Higgs Boson Searches

22. Measurement of the Low-x Behaviour of the Photon Structure Function F2-gamma

23. QCD studies with e+e- annihilation data at 172-189 GeV

24. QCD Analyses and determinations of alpha-s in e+e- Annihilation at energies between 35 and 189 GeV

25. Leading Particle Production in Light Flavour Jets

26. A measurement of the tau mass and the first CPT test with tau leptons

27. A Measurement of the Rate of Charm Production in W Decays

28. Precision Luminosity for Z0 Lineshape Measurements with a Silicon-Tungsten Calorimeter

29. A study of one-prong Tau decays with a charged kaon

30. Precise determination of the Z resonance parameters at LEP: 'Zedometry'

31. Search for unstable heavy and excited leptons at LEP2

32. Total hadronic cross-section of photon-photon interactions at LEP

33. Determination of the b quark mass at the Z mass scale

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33 results on '"K., Sach"'

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