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968 results on '"Hansroul, M."'

201. Measurement of the Michel Parameters in Leptonic Tau Decays

Author: 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., Barlow, R. J., Bartoldus, R., Batley, J. R., Baumann, S., Bechtluft, J., Behnke, T., Bell, K. W., Bella, G., Bentvelsen, S., Bethke, S., Betts, S., Biebel, O., Biguzzi, A., Bird, S. D., Blobel, V., Bloodworth, I. J., Bobinski, M., Bock, P., Bohme, J., Boutemeur, M., Braibant, S., Bright-Thomas, P., Brown, R. M., Burckhart, H. J., Burgard, C., Burgin, R., 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., Couyoumtzelis, C., Coxe, R. L., Cuffiani, M., Dado, S., Dallavalle, G. M., Davis, R., Jong, S., Del Pozo, L. A., Roeck, A., Desch, K., Dienes, B., Dixit, M. S., Doucet, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I. P., Eatough, D., Estabrooks, P. G., Etzion, E., Evans, H. G., Fabbri, F., Fanfani, A., Fanti, M., Faust, A. A., Fiedler, F., Fierro, M., Fischer, H. M., Fleck, I., Folman, R., Furtjes, A., Futyan, D. I., Gagnon, P., Gary, J. W., Gascon, J., Gascon-Shotkin, S. M., Geich-Gimbel, C., Geralis, T., Giacomelli, G., Giacomelli, P., Gibson, V., Gibson, W. R., Gingrich, D. M., Glenzinski, D., Goldberg, J., Gorn, W., Grandi, C., Gross, E., Grunhaus, J., Gruwe, M., Hanson, G. G., Hansroul, M., Hapke, M., Hargrove, C. K., Hartmann, C., Hauschild, M., Hawkes, C. M., Hawkings, R., Hemingway, R. J., Herndon, M., Herten, G., Heuer, R. D., Hildreth, M. D., Hill, J. C., Hillier, S. J., Hobson, P. R., Hocker, A., 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., Joly, A., Jones, C. R., Jovanovic, P., Junk, T. R., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Kayal, P. I., Keeler, R. K., Kellogg, R. G., Kennedy, B. W., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Koetke, D. S., Kokott, T. P., Kolrep, M., Komamiya, S., Kowalewski, R. V., Kress, T., Krieger, P., Krogh, J., Kyberd, P., Lafferty, G. D., Lanske, D., Lauber, J., Lautenschlager, S. R., Lawson, I., Layter, J. G., Lazic, D., Lee, A. M., Lefebvre, E., 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., Ludwig, J., Liu, D., Macchiolo, A., Macpherson, A., Mannelli, M., Marcellini, S., Markopoulos, C., 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., Menke, S., Merritt, F. S., Mes, H., Meyer, J., Michelini, A., Mihara, S., Mikenberg, G., Miller, D. J., Mir, R., Mohr, W., Montanari, A., Mori, T., Nagai, K., Nakamura, I., Neal, H. A., Nellen, B., Nisius, R., O Neale, S. W., Oakham, F. G., Odorici, F., Ogren, H. O., Oreglia, M. J., Orito, S., Pálinkás, J., 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., Przybycieá, M., Rembser, C., Rick, H., Robertson, S., Robins, S. A., Rodning, N., Roney, J. M., 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., Scharf, F., Scharff-Hansen, P., Schieck, J., Bernd Schmitt, Schmitt, S., Schöning, A., Schorner, T., 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., Soldner-Rembold, S., Sproston, M., Stahl, A., Stephens, K., Steuerer, J., Stoll, K., Strom, D., Ströhmer, R., Tafirout, R., Talbot, S. D., Tanaka, S., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomson, M. A., Torne, E., Torrence, E., Towers, S., Trigger, I., Trócsányi, Z., Tsur, E., Turcot, A. S., Turner-Watson, M. F., Kooten, R., Vannerem, P., Verzocchi, M., Vikas, P., 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., White, J. S., Wilson, G. W., Wilson, J. A., Wyatt, T. R., Yamashita, S., Yekutieli, G., Zacek, V., and Zer-Zion, D.
Subjects: Physics, Coupling constant, Gauge boson, Particle physics, Luminosity (scattering theory), Physics and Astronomy (miscellaneous), Neutral current, 010308 nuclear & particles physics, Monte Carlo method, FOS: Physical sciences, 01 natural sciences, 7. Clean energy, Standard Model, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Michel parameters, High Energy Physics::Experiment, 010306 general physics, Engineering (miscellaneous), Particle Physics - Experiment, Lepton
Abstract: The Michel parameters of the leptonic tau decays are measured using the OPAL detector at LEP. The Michel parameters are extracted from the energy spectra of the charged decay leptons and from their energy-energy correlations. A new method involving a global likelihood fit of Monte Carlo generated events with complete detector simulation and background treatment has been applied to the data recorded at center-of-mass energies close to sqrt(s) = M(Z) corresponding to an integrated luminosity of 155 pb-1 during the years 1990 to 1995. If e-mu universality is assumed and inferring the tau polarization from neutral current data, the measured Michel parameters are extracted. Limits on non-standard coupling constants and on the masses of new gauge bosons are obtained. The results are in agreement with the V-A prediction of the Standard Model., 32 pages, LaTeX, 9 eps figures included, submitted to the European Physical Journal C
Published: 1998

202. Inclusive production of charged hadrons and $K_{s}^{0}$ mesons in photon-photon collisions

Author: Ackerstaff, K., Alexander, G., Allison, John, Altekamp, N., Anderson, K.J., Anderson, S., Arcelli, S., Asai, S., Ashby, S.F., Axen, D., Azuelos, G., Ball, A.H., Barberio, E., Barlow, Roger J., Bartoldus, R., Batley, J.R., Baumann, S., Bechtluft, J., Behnke, T., Bell, Kenneth Watson, Bella, G., Bentvelsen, S., Bethke, S., Betts, S., Biebel, O., Biguzzi, A., Bird, S.D., Blobel, V., Bloodworth, I.J., Bobinski, M., Bock, P., Bohme, J., Boutemeur, M., Braibant, S., Bright-Thomas, P., Brown, Robert M., Burckhart, H.J., Burgard, C., Burgin, R., 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., Conboy, J.E., Cooke, O.C., Couyoumtzelis, C., Coxe, R.L., Cuffiani, M., Dado, S., Dallavalle, G.Marco, Davis, R., De Jong, S., del Pozo, L.A., De Roeck, A., Desch, K., Dienes, B., Dixit, M.S., Doucet, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Eatough, D., Estabrooks, P.G., Etzion, E., Evans, H.G., Fabbri, F., Fanfani, A., Fanti, M., Faust, A.A., Fiedler, F., Fierro, M., Fischer, H.M., Fleck, I., Folman, R., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gascon, J., Gascon-Shotkin, S.M., Geich-Gimbel, C., Geralis, T., Giacomelli, G., Giacomelli, P., Gibson, V., Gibson, W.R., Gingrich, D.M., Glenzinski, D., Goldberg, J., Gorn, W., Grandi, C., Gross, E., Grunhaus, J., Gruwe, M., Hanson, G.G., Hansroul, M., Hapke, M., Hargrove, C.K., Hartmann, C., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Herndon, M., Herten, G., Heuer, R.D., Hildreth, M.D., Hill, J.C., Hillier, S.J., Hobson, P.R., Hocker, James Andrew, 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., Joly, A., Jones, C.R., Jovanovic, P., Junk, T.R., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Kayal, P.I., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Koetke, D.S., Kokott, T.P., Kolrep, M., Komamiya, S., Kowalewski, Robert V., Kress, T., Krieger, P., von Krogh, J., Kyberd, P., Lafferty, G.D., Lanske, D., Lauber, J., Lautenschlager, S.R., Lawson, I., Layter, J.G., Lazic, D., Lee, A.M., Lefebvre, E., 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., Ludwig, J., Lui, D., Macchiolo, A., Macpherson, A., Mannelli, M., Marcellini, S., Markopoulos, C., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., Mckigney, E.A., McMahon, T.J., McPherson, R.A., Meijers, F., Menke, S., Merritt, F.S., Mes, H., Meyer, J., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Mir, R., Mohr, W., Montanari, A., Mori, T., Nagai, K., Nakamura, I., Neal, H.A., Nellen, B., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Oreglia, M.J., Orito, S., Palinkas, J., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Perez-Ochoa, R., Petzold, S., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poffenberger, P., Poli, B., Polok, J., Przybycien, M., Rembser, C., Rick, H., Robertson, S., Robins, S.A., Rodning, N., Roney, J.M., 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., Scharf, F., Scharff-Hansen, P., Schieck, J., Schmitt, B., Schmitt, S., Schoning, A., Schorner, T., 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., Sittler, A., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Sproston, M., Stahl, A., Stephens, K., Steuerer, J., Stoll, K., Strom, David M., Strohmer, R., Tafirout, R., Talbot, S.D., Tanaka, S., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomson, M.A., von Torne, E., Torrence, E., Towers, S., Trigger, I., Trocsanyi, Z., Tsur, E., Turcot, A.S., Turner-Watson, M.F., Van Kooten, Rick J., Vannerem, P., Verzocchi, M., Vikas, P., Voss, H., Wackerle, F., Wagner, A., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wermes, N., White, J.S., Wiesler, T., Wilson, G.W., Wilson, J.A., Wyatt, T.R., Yamashita, S., Yekutieli, G., Zacek, V., and Zer-Zion, D.
Subjects: Nuclear Theory, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment
Abstract: The production of charged hadrons and K_s mesons in the collisions of quasi-real photons has been measured using the OPAL detector at LEP. The data were taken at e+e- centre-of-mass energies of 161 and 172 GeV. The differential cross-sections as a function of the transverse momentum and the pseudorapidity of the charged hadrons and K_s mesons have been compared to the leading order Monte Carlo simulations of PHOJET and PYTHIA and to perturbative next-to-leading order (NLO) QCD calculations. The distributions have been measured in the range 10-125 GeV of the hadronic invariant mass W. By comparing the transverse momentum distribution of charged hadrons measured in gamma-gamma interactions with gamma-proton and meson-proton data we find evidence for hard photon interactions in addition to the purely hadronic photon interactions. The production of charged hadrons and K_s mesons in the collisions of quasi-real photons has been measured using the OPAL detector at LEP. The data were taken at e+e- centre-of-mass energies of 161 and 172 GeV. The differential cross-sections as a function of the transverse momentum and the pseudorapidity of the charged hadrons and K_s mesons have been compared to the leading order Monte Carlo simulations of PHOJET and PYTHIA and to perturbative next-to-leading order (NLO) QCD calculations. The distributions have been measured in the range 10-125 GeV of the hadronic invariant mass W. By comparing the transverse momentum distribution of charged hadrons measured in gamma-gamma interactions with gamma-proton and meson-proton data we find evidence for hard photon interactions in addition to the purely hadronic photon interactions. The production of charged hadrons and K_s mesons in the collisions of quasi-real photons has been measured using the OPAL detector at LEP. The data were taken at e+e- centre-of-mass energies of 161 and 172 GeV. The differential cross-sections as a function of the transverse momentum and the pseudorapidity of the charged hadrons and K_s mesons have been compared to the leading order Monte Carlo simulations of PHOJET and PYTHIA and to perturbative next-to-leading order (NLO) QCD calculations. The distributions have been measured in the range 10-125 GeV of the hadronic invariant mass W. By comparing the transverse momentum distribution of charged hadrons measured in gamma-gamma interactions with gamma-proton and meson-proton data we find evidence for hard photon interactions in addition to the purely hadronic photon interactions.
Published: 1998

203. Measurements of flavour dependent fragmentation functions in $Z^{0} \to q\overline{q}$ events

Author: Ackerstaff, K., Alexander, G., Allison, John, Altekamp, N., Anderson, K.J., Anderson, S., Arcelli, S., Asai, S., Ashby, S.F., Axen, D., Azuelos, G., Ball, A.H., Barberio, E., Barlow, Roger J., Bartoldus, R., Batley, J.R., Baumann, S., Bechtluft, J., Behnke, T., Bell, Kenneth Watson, Bella, G., Bentvelsen, S., Bethke, S., Betts, S., Biebel, O., Biguzzi, A., Bird, S.D., Blobel, V., Bloodworth, I.J., Bobinski, M., Bock, P., Bohme, J., Boutemeur, M., Braibant, S., Bright-Thomas, P., Brown, Robert M., Burckhart, H.J., Burgard, C., Burgin, R., 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., Conboy, J.E., Cooke, O.C., Couyoumtzelis, C., Coxe, R.L., Cuffiani, M., Dado, S., Dallavalle, G.Marco, Davis, R., De Jong, S., del Pozo, L.A., De Roeck, A., Desch, K., Dienes, B., Dixit, M.S., Doucet, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Eatough, D., Estabrooks, P.G., Etzion, E., Evans, H.G., Fabbri, F., Fanfani, A., Fanti, M., Faust, A.A., Fiedler, F., Fierro, M., Fischer, H.M., Fleck, I., Folman, R., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gascon, J., Gascon-Shotkin, S.M., Geich-Gimbel, C., Geralis, T., Giacomelli, G., Giacomelli, P., Gibson, V., Gibson, W.R., Gingrich, D.M., Glenzinski, D., Goldberg, J., Gorn, W., Grandi, C., Gross, E., Grunhaus, J., Gruwe, M., Hanson, G.G., Hansroul, M., Hapke, M., Hargrove, C.K., Hartmann, C., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Herndon, M., Herten, G., Heuer, R.D., Hildreth, M.D., Hill, J.C., Hillier, S.J., Hobson, P.R., Hocker, James Andrew, 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., Joly, A., Jones, C.R., Jovanovic, P., Junk, T.R., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Kayal, P.I., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Koetke, D.S., Kokott, T.P., Kolrep, M., Komamiya, S., Kowalewski, Robert V., Kress, T., Krieger, P., von Krogh, J., Kyberd, P., Lafferty, G.D., Lanske, D., Lauber, J., Lautenschlager, S.R., Lawson, I., Layter, J.G., Lazic, D., Lee, A.M., Lefebvre, E., 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., Ludwig, J., Lui, D., Macchiolo, A., Macpherson, A., Mannelli, M., Marcellini, S., Markopoulos, C., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., Mckigney, E.A., McMahon, T.J., McPherson, R.A., Meijers, F., Menke, S., Merritt, F.S., Mes, H., Meyer, J., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Mir, R., Mohr, W., Montanari, A., Mori, T., Nagai, K., Nakamura, I., Neal, H.A., Nellen, B., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Oreglia, M.J., Orito, S., Palinkas, J., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Perez-Ochoa, R., Petzold, S., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poffenberger, P., Poli, B., Polok, J., Przybycien, M., Rembser, C., Rick, H., Robertson, S., Robins, S.A., Rodning, N., Roney, J.M., 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., Scharf, F., Scharff-Hansen, P., Schieck, J., Schmitt, B., Schmitt, S., Schoning, A., Schorner, T., 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., Sittler, A., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Sproston, M., Stahl, A., Stephens, K., Steuerer, J., Stoll, K., Strom, David M., Strohmer, R., Tafirout, R., Talbot, S.D., Tanaka, S., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomson, M.A., von Torne, E., Torrence, E., Towers, S., Trigger, I., Trocsanyi, Z., Tsur, E., Turcot, A.S., Turner-Watson, M.F., Van Kooten, Rick J., Vannerem, P., Verzocchi, M., Vikas, P., Voss, H., Wackerle, F., Wagner, A., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wermes, N., White, J.S., Wilson, G.W., Wilson, J.A., Wyatt, T.R., Yamashita, S., Yekutieli, G., Zacek, V., and Zer-Zion, D.
Subjects: High Energy Physics::Lattice, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: Fragmentation functions for charged particles in Z -> qq(bar) events have been measured for bottom (b), charm (c) and light (uds) quarks as well as for all flavours together. The results are based on data recorded between 1990 and 1995 using the OPAL detector at LEP. Event samples with different flavour compositions were formed using reconstructed D* mesons and secondary vertices. The \xi_p = ln(1/x_E) distributions and the position of their maxima \xi_max are also presented separately for uds, c and b quark events. The fragmentation function for b quarks is significantly softer than for uds quarks. Fragmentation functions for charged particles in Z -> qq(bar) events have been measured for bottom (b), charm (c) and light (uds) quarks as well as for all flavours together. The results are based on data recorded between 1990 and 1995 using the OPAL detector at LEP. Event samples with different flavour compositions were formed using reconstructed D* mesons and secondary vertices. The \xi_p = ln(1/x_E) distributions and the position of their maxima \xi_max are also presented separately for uds, c and b quark events. The fragmentation function for b quarks is significantly softer than for uds quarks. Fragmentation functions for charged particles in Z -> qq(bar) events have been measured for bottom (b), charm (c) and light (uds) quarks as well as for all flavours together. The results are based on data recorded between 1990 and 1995 using the OPAL detector at LEP. Event samples with different flavour compositions were formed using reconstructed D* mesons and secondary vertices. The \xi_p = ln(1/x_E) distributions and the position of their maxima \xi_max are also presented separately for uds, c and b quark events. The fragmentation function for b quarks is significantly softer than for uds quarks. Fragmentation functions for charged particles in Z -> qq(bar) events have been measured for bottom (b), charm (c) and light (uds) quarks as well as for all flavours together. The results are based on data recorded between 1990 and 1995 using the OPAL detector at LEP. Event samples with different flavour compositions were formed using reconstructed D* mesons and secondary vertices. The \xi_p = ln(1/x_E) distributions and the position of their maxima \xi_max are also presented separately for uds, c and b quark events. The fragmentation function for b quarks is significantly softer than for uds quarks.
Published: 1998

204. An upper limit for the $\tau$-neutrino mass from $\tau \to 5\pi^{\pm} \nu_{\tau}$ decays

Author: Ackerstaff, K., Alexander, G., Allison, John, Altekamp, N., Anderson, K.J., Anderson, S., Arcelli, S., Asai, S., Ashby, S.F., Axen, D., Azuelos, G., Ball, A.H., Barberio, E., Barlow, Roger J., Bartoldus, R., Batley, J.R., Baumann, S., Bechtluft, J., Behnke, T., Bell, Kenneth Watson, Bella, G., Bentvelsen, S., Bethke, S., Betts, S., Biebel, O., Biguzzi, A., Bird, S.D., Blobel, V., Bloodworth, I.J., Bobinski, M., Bock, P., Bohme, J., Boutemeur, M., Braibant, S., Bright-Thomas, P., Brown, Robert M., Burckhart, H.J., Burgard, C., Burgin, R., 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., Conboy, J.E., Cooke, O.C., Couyoumtzelis, C., Coxe, R.L., Cuffiani, M., Dado, S., Dallavalle, G.Marco, Davis, R., De Jong, S., del Pozo, L.A., De Roeck, A., Desch, K., Dienes, B., Dixit, M.S., Doucet, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Eatough, D., Estabrooks, P.G., Evans, H.G., Fabbri, F., Fanfani, A., Fanti, M., Faust, A.A., Fiedler, F., Fierro, M., Fischer, H.M., Fleck, I., Folman, R., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gascon, J., Gascon-Shotkin, S.M., Geich-Gimbel, C., Geralis, T., Giacomelli, G., Giacomelli, P., Gibson, V., Gibson, W.R., Gingrich, D.M., Glenzinski, D., Goldberg, J., Gorn, W., Grandi, C., Gross, E., Grunhaus, J., Gruwe, M., Hanson, G.G., Hansroul, M., Hapke, M., Hargrove, C.K., Hartmann, C., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Herndon, M., Herten, G., Heuer, R.D., Hildreth, M.D., Hill, J.C., Hillier, S.J., Hobson, P.R., Hocker, James Andrew, 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., Joly, A., Jones, C.R., Jovanovic, P., Junk, T.R., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Kayal, P.I., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Koetke, D.S., Kokott, T.P., Kolrep, M., Komamiya, S., Kowalewski, Robert V., Kress, T., Krieger, P., von Krogh, J., Kyberd, P., Lafferty, G.D., Lanske, D., Lauber, J., Lautenschlager, S.R., Lawson, I., Layter, J.G., Lazic, D., Lee, A.M., Lefebvre, E., 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., Ludwig, J., Lui, D., Macchiolo, A., Macpherson, A., Mannelli, M., Marcellini, S., Markopoulos, C., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., Mckigney, E.A., McMahon, T.J., McPherson, R.A., Meijers, F., Menke, S., Merritt, F.S., Mes, H., Meyer, J., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Mir, R., Mohr, W., Montanari, A., Mori, T., Nagai, K., Nakamura, I., Neal, H.A., Nellen, B., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Oreglia, M.J., Orito, S., Palinkas, J., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Perez-Ochoa, R., Petzold, S., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poffenberger, P., Poli, B., Polok, J., Przybycien, M., Rembser, C., Rick, H., Robertson, S., Robins, S.A., Rodning, N., Roney, J.M., 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., Scharf, F., Scharff-Hansen, P., Schieck, J., Schmitt, B., Schmitt, S., Schoning, A., Schorner, T., 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., Sittler, A., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Sproston, M., Stahl, A., Stephens, K., Steuerer, J., Stoll, K., Strom, David M., Strohmer, R., Tafirout, R., Talbot, S.D., Tanaka, S., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomson, M.A., von Torne, E., Torrence, E., Towers, S., Trigger, I., Trocsanyi, Z., Tsur, E., Turcot, A.S., Turner-Watson, M.F., Van Kooten, Rick J., Vannerem, P., Verzocchi, M., Vikas, P., Voss, H., Wackerle, F., Wagner, A., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wermes, N., White, J.S., Wilson, G.W., Wilson, J.A., Wyatt, T.R., Yamashita, S., Yekutieli, G., Zacek, V., and Zer-Zion, D.
Subjects: High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: An upper limit for the tau-neutrino mass has been determined from the decay tau -> 5pi+- \nu_tau using data collected with the OPAL detector from 1991 to 1995 in e+e- collisions at \sqrt{s} ~ M_Z. A limit of 43.2 MeV at 95% CL is obtained using a two-dimensional method in the 5pi invariant mass and energy distribution from 22 selected events. Combining this result with OPAL's previously published measurement using tau+tau- -> 3h+- \bar{nu}_tau 3h-+ obtained. An upper limit for the tau-neutrino mass has been determined from the decay tau -> 5pi+- \nu_tau using data collected with the OPAL detector from 1991 to 1995 in e+e- collisions at \sqrt{s} ~ M_Z. A limit of 43.2 MeV at 95% CL is obtained using a two-dimensional method in the 5pi invariant mass and energy distribution from 22 selected events. Combining this result with OPAL's previously published measurement using tau+tau- -> 3h+- \bar{nu}_tau 3h-+ \nu_tau decays, a new combined limit of m_{nu_tau} < 27.6 MeV (95% CL) is obtained.
Published: 1998

205. Production of $K^{0}_{S}$ and $\Lambda$ in Quark and Gluon Jets from $Z^{0}$ Decay

Author: Ackerstaff, K., Alexander, G., Allison, John, Altekamp, N., Anderson, K.J., Anderson, S., Arcelli, S., Asai, S., Ashby, S.F., Axen, D., Azuelos, G., Ball, A.H., Barberio, E., Barlow, Roger J., Bartoldus, R., Batley, J.R., Baumann, S., Bechtluft, J., Behnke, T., Bell, Kenneth Watson, Bella, G., Bentvelsen, S., Bethke, S., Betts, S., Biebel, O., Biguzzi, A., Bird, S.D., Blobel, V., Bloodworth, I.J., Bobinski, M., Bock, P., Bohme, J., Boutemeur, M., Braibant, S., Bright-Thomas, P., Brown, Robert M., Burckhart, H.J., Burgard, C., Burgin, R., 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., Conboy, J.E., Cooke, O.C., Couyoumtzelis, C., Coxe, R.L., Cuffiani, M., Dado, S., Dallavalle, G.Marco, Davis, R., De Jong, S., del Pozo, L.A., de Roeck, A., Desch, K., Dienes, B., Dixit, M.S., Doucet, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Eatough, D., Estabrooks, P.G., Evans, H.G., Fabbri, F., Fanfani, A., Fanti, M., Faust, A.A., Fiedler, F., Fierro, M., Fischer, H.M., Fleck, I., Folman, R., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gascon, J., Gascon-Shotkin, S.M., Geich-Gimbel, C., Geralis, T., Giacomelli, G., Giacomelli, P., Gibson, V., Gibson, W.R., Gingrich, D.M., Glenzinski, D., Goldberg, J., Gorn, W., Grandi, C., Gross, E., Grunhaus, J., Gruwe, M., Hanson, G.G., Hansroul, M., Hapke, M., Hargrove, C.K., Hartmann, C., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Herndon, M., Herten, G., Heuer, R.D., Hildreth, M.D., Hill, J.C., Hillier, S.J., Hobson, P.R., Hocker, James Andrew, 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., Joly, A., Jones, C.R., Jovanovic, P., Junk, T.R., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Kayal, P.I., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Koetke, D.S., Kokott, T.P., Kolrep, M., Komamiya, S., Kowalewski, Robert V., Kress, T., Krieger, P., von Krogh, J., Kyberd, P., Lafferty, G.D., Lanske, D., Lauber, J., Lautenschlager, S.R., Lawson, I., Layter, J.G., Lazic, D., Lee, A.M., Lefebvre, E., 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., Ludwig, J., Lui, D., Macchiolo, A., Macpherson, A., Mannelli, M., Marcellini, S., Markopoulos, C., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J.A., Mckigney, E.A., McMahon, T.J., McPherson, R.A., Meijers, F., Menke, S., Merritt, F.S., Mes, H., Meyer, J., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Mir, R., Mohr, W., Montanari, A., Mori, T., Nagai, K., Nakamura, I., Neal, H.A., Nellen, B., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Oreglia, M.J., Orito, S., Palinkas, J., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Perez-Ochoa, R., Petzold, S., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poffenberger, P., Poli, B., Polok, J., Przybycien, M., Rembser, C., Rick, H., Robertson, S., Robins, S.A., Rodning, N., Roney, J.M., 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., Scharf, F., Scharff-Hansen, P., Schieck, J., Schmitt, B., Schmitt, S., Schoning, A., Schorner, T., 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., Sittler, A., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Sproston, M., Stahl, A., Stephens, K., Steuerer, J., Stoll, K., Strom, David M., Strohmer, R., Tafirout, R., Talbot, S.D., Tanaka, S., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomson, M.A., von Torne, E., Torrence, E., Towers, S., Trigger, I., Trocsanyi, Z., Tsur, E., Turcot, A.S., Turner-Watson, M.F., Van Kooten, Rick J., Vannerem, P., Verzocchi, M., Vikas, P., Voss, H., Wackerle, F., Wagner, A., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wermes, N., White, J.S., Wilson, G.W., Wilson, J.A., Wyatt, T.R., Yamashita, S., Yekutieli, G., Zacek, V., and Zer-Zion, D.
Subjects: Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: The production of K^0_S mesons and Lambda baryons in quark and gluon jets has been investigated using two complementary techniques. In the first approach, which provides high statistical accuracy, jets were selected using different jet finding algorithms and ordered according to their energy. Production rates were determined taking into account the dependences of quark and gluon compositions as a function of jet energy as predicted by Monte Carlo models. Selecting three-jet events with the k_perp (Durham) jet finder (y_cut = 0.005), the ratios of K^0_S and Lambda production rates in gluon and quark jets relative to the mean charged particle multiplicity were found to be 1.10 +/- 0.02 +/- 0.02 and 1.41 +/- 0.04 +/- 0.04, respectively, where the first uncertainty is statistical and the second is systematic. In the second approach, a new method of identifying quark jets based on the collimation of energy flow around the jet axis is introduced and was used to anti-tag gluon jets in symmetric (Y-shaped) three-jet events. Using the cone jet finding algorithm with a cone size of 30 degrees, the ratios of relative production rates in gluon and quark jets were determined to be 0.94 +/- 0.07 +/- 0.07 for K^0_S and 1.18 +/- 0.10 +/- 0.17 for Lambda. The results of both analyses are compared to the predictions of Monte Carlo models. The production of K^0_S mesons and Lambda baryons in quark and gluon jets has been investigated using two complementary techniques. In the first approach, which provides high statistical accuracy, jets were selected using different jet finding algorithms and ordered according to their energy. Production rates were determined taking into account the dependences of quark and gluon compositions as a function of jet energy as predicted by Monte Carlo models. Selecting three-jet events with the k_perp (Durham) jet finder (y_cut = 0.005), the ratios of K^0_S and Lambda production rates in gluon and quark jets relative to the mean charged particle multiplicity were found to be 1.10 +/- 0.02 +/- 0.02 and 1.41 +/- 0.04 +/- 0.04, respectively, where the first uncertainty is statistical and the second is systematic. In the second approach, a new method of identifying quark jets based on the collimation of energy flow around the jet axis is introduced and was used to anti-tag gluon jets in symmetric (Y-shaped) three-jet events. Using the cone jet finding algorithm with a cone size of 30 degrees, the ratios of relative production rates in gluon and quark jets were determined to be 0.94 +/- 0.07 +/- 0.07 for K^0_S and 1.18 +/- 0.10 +/- 0.17 for Lambda. The results of both analyses are compared to the predictions of Monte Carlo models. The production of K^0_S mesons and Lambda baryons in quark and gluon jets has been investigated using two complementary techniques. In the first approach, which provides high statistical accuracy, jets were selected using different jet finding algorithms and ordered according to their energy. Production rates were determined taking into account the dependences of quark and gluon compositions as a function of jet energy as predicted by Monte Carlo models. Selecting three-jet events with the k_perp (Durham) jet finder (y_cut = 0.005), the ratios of K^0_S and Lambda production rates in gluon and quark jets relative to the mean charged particle multiplicity were found to be 1.10 +/- 0.02 +/- 0.02 and 1.41 +/- 0.04 +/- 0.04, respectively, where the first uncertainty is statistical and the second is systematic. In the second approach, a new method of identifying quark jets based on the collimation of energy flow around the jet axis is introduced and was used to anti-tag gluon jets in symmetric (Y-shaped) three-jet events. Using the cone jet finding algorithm with a cone size of 30 degrees, the ratios of relative production rates in gluon and quark jets were determined to be 0.94 +/- 0.07 +/- 0.07 for K^0_S and 1.18 +/- 0.10 +/- 0.17 for Lambda. The results of both analyses are compared to the predictions of Monte Carlo models.
Published: 1998

206. Measurement of f(c -> D(+),X), f(b -> D(+),X) and Gamma(c(c)over-bar)/Gamma(had) using D*(+/-) mesons

Author: Ackerstaff, K, Alexander, G, Allison, J, Altekamp, N, Anderson, KJ, Anderson, S, Arcelli, S, Asai, S, Axen, D, Azuelos, G, Ball, AH, Runge, K, Runolfsson, O, Ruppel, U, Rust, DR, Rylko, R, Biguzzi, A, Sachs, K, Saeki, T, Sarkisyan, EKG, Hansroul, M, Loebinger, FK, Sbarra, C, Schmitt, S, Schoning, A, Schroder, M, Schultz-Coulon, HC, Schumacher, M, Schwick, C, Bird, SD, Scott, WG, Shears, TG, Long, GD, Hapke, M, Shen, BC, Shepherd-Themistocleous, CH, Sherwood, P, Siroli, GP, Sittler, A, Skillman, A, Skuja, A, Smith, AM, Blobel, V, Losty, MJ, Snow, GA, Barberio, E, Sobie, R, Soldner-Rembold, S, Springer, RW, Ludwig, J, Bloodworth, IJ, Hargrove, CK, SOldner-Rembold, S, Sproston, M, Stephens, K, Steuerer, J, Stockhausen, B, Stoll, K, Macchiolo, A, Strom, D, Szymanski, P, Tafirout, R, Hart, PA, Bloomer, JE, Talbot, SD, Tanaka, S, Taras, P, Tarem, S, Teuscher, R, Macpherson, A, Thiergen, M, Thomson, MA, von Torne, E, Towers, S, Hartmann, C, Trigger, I, Bobinski, M, Trocsanyi, Z, Tsur, E, Turcot, AS, Mannelli, M, Turner-Watson, MF, Utzat, P, Van Kooten, R, Verzocchi, M, Vikas, P, Hauschild, M, Vokurka, EH, Voss, H, Bock, P, Wackerle, F, Marcellini, S, Wagner, A, Ward, CP, Ward, DR, Watkins, PM, Watson, AT, Watson, NK, Hawkes, CM, Wells, PS, Wermes, N, White, JS, Markus, C, Bonacorsi, D, Wilkens, B, Wilson, GW, Wilson, JA, Wolf, G, Wyatt, TR, Yamashita, S, Hawkings, R, Yekutieli, G, Zacek, V, Behnke, T, Zer-Zion, D, OPAL Collaboration, Boutemeur, M, Bouwens, BT, Braibant, S, Brigliadori, L, Brown, RM, Burckhart, HJ, Hemingway, RJ, Burgard, C, Goodrick, MJ, Burgin, R, Capiluppi, P, Carnegie, RK, Carter, AA, Carter, JR, Chang, CY, Charlton, DG, Chrisman, D, Clarke, PEL, Herndon, M, Martin, AJ, Cohen, I, Conboy, JE, Cooke, OC, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, GM, Davis, R, De Jong, S, del Pozo, LA, Martin, JP, Herten, G, Desch, K, Dienes, B, Dixit, MS, Silva, EDE, Doucet, M, Duchovni, E, Duckeck, G, Duerdoth, IP, Eatough, D, Martinez, G, Edwards, JEG, Heuer, RD, Estabrooks, PG, Evans, HG, Evans, M, Fabbri, F, Fanti, M, Faust, AA, Fiedler, F, Fierro, M, Mashimo, T, Fischer, HM, Fleck, I, Barillari, T, Folman, R, Fong, DG, Foucher, M, Furtjes, A, Futyan, DI, Gagnon, P, Gary, JW, Mattig, P, Gascon, J, Gascon-Shotkin, SM, Geddes, NI, Hildreth, MD, Geich-Gimbel, C, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, McDonald, WJ, Gibson, WR, Gingrich, DM, Glenzinski, D, Goldberg, J, Hill, JC, Hillier, SJ, Hobson, PR, Homer, RJ, Honma, AK, Horvath, D, McKenna, J, Hossain, KR, Howard, R, Huntemeyer, P, Barlow, RJ, Hutchcroft, DE, Igo-Kemenes, P, Imrie, DC, Ingram, MR, Ishii, K, Jawahery, A, Mckigney, EA, Jeffreys, PW, Jeremie, H, Jimack, M, Joly, A, Bartoldus, R, Jones, CR, Jones, G, Jones, M, Jost, U, Jovanovic, P, McMahon, TJ, Junk, TR, Karlen, D, Kartvelishvili, V, Kawagoe, K, Kawamoto, T, Batley, JR, Kayal, PI, Keeler, RK, Kellogg, RG, Kennedy, BW, McPherson, RA, Kirk, J, Klier, A, Kluth, S, Kobayashi, T, Kobel, M, Koetke, DS, Baumann, S, Kokott, TP, Kolrep, M, Komamiya, S, Gorn, W, Kress, T, Krieger, P, von Krogh, J, Kyberd, P, Lafferty, GD, Lahmann, R, Lai, WP, Bechtluft, J, Lanske, D, Lauber, J, Bell, AN, Lautenschlager, SR, Layter, JG, Lazic, D, Lee, AM, Lefebvre, E, Lellouch, D, Letts, J, Levinson, L, Beeston, C, Lloyd, SL, Meijers, F, Menke, S, Merritt, FS, Mes, H, Meyer, J, Michelini, A, Milkenberg, G, Miller, DJ, Mincer, A, Grandi, C, Mir, R, Bell, KW, Mohr, W, Montanari, A, Mori, T, Morii, M, Muller, U, Mihara, S, Nagai, K, Nakamura, I, Gross, E, Neal, HA, Nellen, B, Bella, G, Nisius, R, O'Neale, SW, Oakham, FG, Odorici, F, Ogren, HO, Oh, A, Oldershaw, NJ, Grunhaus, J, Oreglia, MJ, Orito, S, Palinkas, J, Bentvelsen, S, Pasztor, G, Pater, JR, Patrick, GN, Patt, J, Pearce, MJ, Perez-Ochoa, R, Gruwe, M, Petzold, S, Pfeifenschneider, P, Pichler, JE, Pinfold, J, Bethke, S, Plane, DE, Poffenberger, P, Poli, B, Posthaus, A, Rees, DL, Hajdu, C, Rigby, D, Robertson, S, Robins, SA, Rodning, N, Roney, JM, Biebel, O, Rooke, A, Ros, E, Rossi, AM, Routenburg, P, Hanson, GG, and Rozen, Y
Subjects: Heavy Quarks, Opal Jet Chamber, Charm Quark Pairs, Microvertex Detector, Hadronic Z(0) Decays, Fragmentation Function, Z0, QCD
Published: 1998

207. Investigation of CP violation in $B^{0} \to J/\psi K_{s}^{0}$ decays at LEP

Author: Ackerstaff, K., Alexander, G., Allison, John, Altekamp, N., Anderson, K.J., Anderson, S., Arcelli, S., Asai, S., Ashby, S.F., Axen, D., Azuelos, G., Ball, A.H., Barberio, E., Barlow, Roger J., Bartoldus, R., Batley, J.R., Baumann, S., Bechtluft, J., Behnke, T., Bell, Kenneth Watson, Bella, G., Bentvelsen, S., Bethke, S., Betts, S., Biebel, O., Biguzzi, A., Bird, S.D., Blobel, V., Bloodworth, I.J., Bobinski, M., Bock, P., Bonacorsi, D., Boutemeur, M., Braibant, S., Brigliadori, L., Brown, Robert M., Burckhart, H.J., Burgard, C., Burgin, R., Capiluppi, P., Carnegie, R.K., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Chrisman, D., Clarke, P.E.L., Cohen, I., Conboy, J.E., Cooke, O.C., Couyoumtzelis, C., Coxe, R.L., Cuffiani, M., Dado, S., Dallapiccola, C., Dallavalle, G.Marco, Davis, R., De Jong, S., del Pozo, L.A., de Roeck, A., Desch, K., Dienes, B., Dixit, M.S., Doucet, M., Duchovni, E., Duckeck, G., Duerdoth, I.P., Eatough, D., Estabrooks, P.G., Etzion, E., Evans, H.G., Evans, M., Fabbri, F., Fanfani, A., Fanti, M., Faust, A.A., Feld, L., Fiedler, F., Fierro, M., Fischer, H.M., Fleck, I., Folman, R., Fong, D.G., Foucher, M., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gascon, J., Gascon-Shotkin, S.M., Geddes, N.I., Geich-Gimbel, C., Geralis, T., Giacomelli, G., Giacomelli, P., Giacomelli, R., Gibson, V., Gibson, W.R., Gingrich, D.M., Glenzinski, D., Goldberg, J., Goodrick, M.J., Gorn, W., Grandi, C., Gross, E., Grunhaus, J., Gruwe, M., Hajdu, C., Hanson, G.G., Hansroul, M., Hapke, M., Hargrove, C.K., Hart, P.A., Hartmann, C., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Herndon, M., Herten, G., Heuer, R.D., Hildreth, M.D., Hill, J.C., Hillier, S.J., Hobson, P.R., Hocker, James Andrew, Homer, R.J., Honma, A.K., Horvath, D., Hossain, K.R., Howard, R., Huntemeyer, P., Hutchcroft, D.E., Igo-Kemenes, P., Imrie, D.C., Ishii, K., Jawahery, A., Jeffreys, P.W., Jeremie, H., Jimack, M., Joly, A., Jones, C.R., Jones, M., Jost, U., Jovanovic, P., Junk, T.R., Kanzaki, J., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Kayal, P.I., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kirk, J., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Koetke, D.S., Kokott, T.P., Kolrep, M., Komamiya, S., Kowalewski, Robert V., Kress, T., Krieger, P., von Krogh, J., Kyberd, P., Lafferty, G.D., Lahmann, R., Lai, W.P., Lanske, D., Lauber, J., Lautenschlager, S.R., Lawson, I., Layter, J.G., Lazic, D., Lee, A.M., Lefebvre, E., Lellouch, D., Letts, J., Levinson, L., List, B., Lloyd, S.L., Loebinger, F.K., Long, G.D., Losty, M.J., Ludwig, J., Lui, D., Macchiolo, A., Macpherson, A., Mannelli, M., Marcellini, S., Markopoulos, C., Markus, C., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., Mckigney, E.A., McMahon, T.J., McPherson, R.A., Meijers, F., Menke, S., Merritt, F.S., Mes, H., Meyer, J., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Mincer, A., Mir, R., Mohr, W., Montanari, A., Mori, T., Nagai, K., Nakamura, I., Neal, H.A., Nellen, B., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Oh, A., Oldershaw, N.J., Oreglia, M.J., Orito, S., Palinkas, J., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Perez-Ochoa, R., Petzold, S., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poffenberger, P., Poli, B., Posthaus, A., Rembser, C., Robertson, S., Robins, S.A., Rodning, N., Roney, J.M., Rooke, A., Rossi, A.M., Routenburg, P., Rozen, Y., Runge, K., Runolfsson, O., Ruppel, U., Rust, D.R., Sachs, K., Saeki, T., Sang, W.M., Sarkisian, E.K.G., Sbarra, C., Schaile, A.D., Schaile, O., Scharf, F., Scharff-Hansen, P., Schieck, J., Schleper, P., Schmitt, B., Schmitt, S., Schoning, A., Schroder, Matthias, Schumacher, M., Schwick, C., Scott, W.G., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G.P., Sittler, A., Skillman, A., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Springer, Robert Wayne, Sproston, M., Stephens, K., Steuerer, J., Stockhausen, B., Stoll, K., Strom, David M., Strohmer, R., Szymanski, P., Tafirout, R., Talbot, S.D., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomson, M.A., von Torne, E., Torrence, E., Towers, S., Trigger, I., Trocsanyi, Z., Tsur, E., Turcot, A.S., Turner-Watson, M.F., Ueda, I., Utzat, P., Van Kooten, Rick J., Vannerem, P., Verzocchi, M., Vikas, P., Vokurka, E.H., Voss, H., Wackerle, F., Wagner, A., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wermes, N., White, J.S., Wilson, G.W., Wilson, J.A., Wyatt, T.R., Yamashita, S., Yekutieli, G., Zacek, V., and Zer-Zion, D.
Subjects: Particle Physics - Experiment
Abstract: An investigation of CP violation was performed using a total of 24 candidates for B^0 -> J/psi K^0_S decay, with a purity of about 60%. These events were selected from 4.4 million hadronic Z^0 decays recorded by the OPAL detector at LEP. An analysis procedure, involving techniques to reconstruct the proper decay times and tag the produced b-flavours, B^0 or B^0(bar), has been developed to allow a first direct study of the time dependent CP asymmetry that, in the Standard Model, is sin(2beta). The result is sin(2beta) = 3.2_{-2.0}^{+1.8} +/- 0.5, where the first error is statistical and the second systematic. This result is used to determine probabilities for different values of sin(2beta) in the physical region from -1 to +1. An investigation of CP violation was performed using a total of 24 candidates for B^0 -> J/psi K^0_S decay, with a purity of about 60%. These events were selected from 4.4 million hadronic Z^0 decays recorded by the OPAL detector at LEP. An analysis procedure, involving techniques to reconstruct the proper decay times and tag the produced b-flavours, B^0 or B^0(bar), has been developed to allow a first direct study of the time dependent CP asymmetry that, in the Standard Model, is sin(2beta). The result is sin(2beta) = 3.2_{-2.0}^{+1.8} +/- 0.5, where the first error is statistical and the second systematic. This result is used to determine probabilities for different values of sin(2beta) in the physical region from -1 to +1.
Published: 1998

208. Determination of the Production Rate of $D^{*0}$ Mesons and of the Ratio V/(V+P) in $Z^{0} \to c\overline{c}$ Decays

Author: Ackerstaff, K., Alexander, G., Allison, John, Altekamp, N., Anderson, K.J., Anderson, S., Arcelli, S., Asai, S., Ashby, S.F., Axen, D., Azuelos, G., Ball, A.H., Barberio, E., Barlow, Roger J., Bartoldus, R., Batley, J.R., Baumann, S., Bechtluft, J., Behnke, T., Bell, Kenneth Watson, Bella, G., Bentvelsen, S., Bethke, S., Betts, S., Biebel, O., Biguzzi, A., Bird, S.D., Blobel, V., Bloodworth, I.J., Bobinski, M., Bock, P., Bonacorsi, D., Boutemeur, M., Braibant, S., Brigliadori, L., Brown, Robert M., Burckhart, H.J., Burgard, C., Burgin, R., Capiluppi, P., Carnegie, R.K., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Chrisman, D., Clarke, P.E.L., Cohen, I., Conboy, J.E., Cooke, O.C., Couyoumtzelis, C., Coxe, R.L., Cuffiani, M., Dado, S., Dallapiccola, C., Dallavalle, G.Marco, Davis, R., De Jong, S., del Pozo, L.A., de Roeck, A., Desch, K., Dienes, B., Dixit, M.S., Doucet, M., Duchovni, E., Duckeck, G., Duerdoth, I.P., Eatough, D., Estabrooks, P.G., Etzion, E., Evans, H.G., Evans, M., Fabbri, F., Fanfani, A., Fanti, M., Faust, A.A., Feld, L., Fiedler, F., Fierro, M., Fischer, H.M., Fleck, I., Folman, R., Fong, D.G., Foucher, M., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gascon, J., Gascon-Shotkin, S.M., Geddes, N.I., Geich-Gimbel, C., Geralis, T., Giacomelli, G., Giacomelli, P., Giacomelli, R., Gibson, V., Gibson, W.R., Gingrich, D.M., Glenzinski, D., Goldberg, J., Goodrick, M.J., Gorn, W., Grandi, C., Gross, E., Grunhaus, J., Gruwe, M., Hajdu, C., Hanson, G.G., Hansroul, M., Hapke, M., Hargrove, C.K., Hart, P.A., Hartmann, C., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Herndon, M., Herten, G., Heuer, R.D., Hildreth, M.D., Hill, J.C., Hillier, S.J., Hobson, P.R., Hocker, James Andrew, Homer, R.J., Honma, A.K., Horvath, D., Hossain, K.R., Howard, R., Huntemeyer, P., Hutchcroft, D.E., Igo-Kemenes, P., Imrie, D.C., Ishii, K., Jawahery, A., Jeffreys, P.W., Jeremie, H., Jimack, M., Joly, A., Jones, C.R., Jones, M., Jost, U., Jovanovic, P., Junk, T.R., Kanzaki, J., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Kayal, P.I., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kirk, J., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Koetke, D.S., Kokott, T.P., Kolrep, M., Komamiya, S., Kowalewski, Robert V., Kress, T., Krieger, P., von Krogh, J., Kyberd, P., Lafferty, G.D., Lahmann, R., Lai, W.P., Lanske, D., Lauber, J., Lautenschlager, S.R., Lawson, I., Layter, J.G., Lazic, D., Lee, A.M., Lefebvre, E., Lellouch, D., Letts, J., Levinson, L., List, B., Lloyd, S.L., Loebinger, F.K., Long, G.D., Losty, M.J., Ludwig, J., Lui, D., Macchiolo, A., Macpherson, A., Mannelli, M., Marcellini, S., Markopoulos, C., Markus, C., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., Mckigney, E.A., McMahon, T.J., McPherson, R.A., Meijers, F., Menke, S., Merritt, F.S., Mes, H., Meyer, J., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Mincer, A., Mir, R., Mohr, W., Montanari, A., Mori, T., Nagai, K., Nakamura, I., Neal, H.A., Nellen, B., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Oh, A., Oldershaw, N.J., Oreglia, M.J., Orito, S., Palinkas, J., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Perez-Ochoa, R., Petzold, S., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poffenberger, P., Poli, B., Posthaus, A., Rembser, C., Robertson, S., Robins, S.A., Rodning, N., Roney, J.M., Rooke, A., Rossi, A.M., Routenburg, P., Rozen, Y., Runge, K., Runolfsson, O., Ruppel, U., Rust, D.R., Sachs, K., Saeki, T., Sahr, O., Sang, W.M., Sarkisian, E.K.G., Sbarra, C., Schaile, A.D., Schaile, O., Scharf, F., Scharff-Hansen, P., Schieck, J., Schleper, P., Schmitt, B., Schmitt, S., Schoning, A., Schroder, Matthias, Schumacher, M., Schwick, C., Scott, W.G., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G.P., Sittler, A., Skillman, A., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Springer, Robert Wayne, Sproston, M., Stephens, K., Steuerer, J., Stockhausen, B., Stoll, K., Strom, David M., Strohmer, R., Szymanski, P., Tafirout, R., Talbot, S.D., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomson, M.A., von Torne, E., Torrence, E., Towers, S., Trigger, I., Trocsanyi, Z., Tsur, E., Turcot, A.S., Turner-Watson, M.F., Ueda, I., Utzat, P., Van Kooten, Rick J., Vannerem, P., Verzocchi, M., Vikas, P., Vokurka, E.H., Voss, H., Wackerle, F., Wagner, A., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wermes, N., White, J.S., Wilson, G.W., Wilson, J.A., Wyatt, T.R., Yamashita, S., Yekutieli, G., Zacek, V., and Zer-Zion, D.
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment
Abstract: In e^+e^- collisions at centre-of-mass energies around 91 GeV, D^*0 mesons have been reconstructed using data collected with the OPAL detector at LEP. The hadronisation fraction has been measured to be f(c -> D^*0) = 0.218 +/- 0.054 +/- 0.045 +/- 0.007, where the errors correspond to the statistical and systematic errors specific to this analysis, and to systematic uncertainties from externally measured branching fractions, respectively. Together with previous OPAL measurements of the hadron isation fractions of other charmed mesons, this value is used to investigate the relative production of observed vector and pseudoscalar charmed mesons in Z^0 -> cc(bar) decays. The production ratio production rate in hadronic Z^0 decays is presented. In e^+e^- collisions at centre-of-mass energies around 91 GeV, D^*0 mesons have been reconstructed using data collected with the OPAL detector at LEP. The hadronisation fraction has been measured to be f(c -> D^*0) = 0.218 +/- 0.054 +/- 0.045 +/- 0.007, where the errors correspond to the statistical and systematic errors specific to this analysis, and to systematic uncertainties from externally measured branching fractions, respectively. Together with previous OPAL measurements of the hadronisation fractions of other charmed mesons, this value is used to investigate the relative production of observed vector and pseudoscalar charmed mesons in Z^0 -> cc(bar) decays. The production ratio is determined to be P^eff_V = V/(V+P) = 0.57 +/- 0.05. The relative primary production of vector and pseudoscalar mesons, P^prim_V, is studied in the context of the production and decay of orbitally excited charmed resonances. The first measurement of the inclusive D^*+_s production rate in hadronic Z^0 decays is presented.
Published: 1998

209. Measurement of the w boson mass and $w^{+} w^{-}$ production and decay properties in $e^{+}e^{-}$ collisions at s**(1/2) = 172-GeV

Author: Ackerstaff, K., Alexander, G., Allison, John, Altekamp, N., Anderson, K.J., Anderson, S., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Ball, A.H., Barberio, E., Barlow, Roger J., Bartoldus, R., Batley, J.R., Baumann, S., Bechtluft, J., Beeston, C., Behnke, T., Bell, A.N., Bell, Kenneth Watson, Bella, G., Bentvelsen, S., Bethke, S., Biebel, O., Biguzzi, A., Bird, S.D., Blobel, V., Bloodworth, I.J., Bloomer, J.E., Bobinski, M., Bock, P., Bonacorsi, D., Boutemeur, M., Bouwens, B.T., Braibant, S., Brigliadori, L., Brown, Robert M., Burckhart, H.J., Burgard, C., Burgin, R., Capiluppi, P., Carnegie, R.K., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Chrisman, D., Clarke, P.E.L., Cohen, I., Conboy, J.E., Cooke, O.C., Cuffiani, M., Dado, S., Dallapiccola, C., Dallavalle, G.Marco, Davies, R., De Jong, S., del Pozo, L.A., Desch, K., Dienes, B., Dixit, M.S., do Couto e Silva, E., Doucet, M., Duchovni, E., Duckeck, G., Duerdoth, I.P., Eatough, D., Edwards, J.E.G., Estabrooks, P.G., Evans, H.G., Evans, M., Fabbri, F., Fanti, M., Faust, A.A., Fiedler, F., Fierro, M., Fischer, H.M., Fleck, I., Folman, R., Fong, D.G., Foucher, M., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gascon, J., Gascon-Shotkin, S.M., Geddes, N.I., Geich-Gimbel, C., Geralis, T., Giacomelli, G., Giacomelli, P., Giacomelli, R., Gibson, V., Gibson, W.R., Gingrich, D.M., Glenzinski, D., Goldberg, J., Goodrick, M.J., Gorn, W., Grandi, C., Gross, E., Grunhaus, J., Gruwe, M., Hajdu, C., Hanson, G.G., Hansroul, M., Hapke, M., Hargrove, C.K., Hart, P.A., Hartmann, C., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Herndon, M., Herten, G., Heuer, R.D., Hildreth, M.D., Hill, J.C., Hillier, S.J., Hobson, P.R., Homer, R.J., Honma, A.K., Horvath, D., Hossain, K.R., Howard, R., Huntemeyer, P., Hutchcroft, D.E., Igo-Kemenes, P., Imrie, D.C., Ingram, M.R., Ishii, K., Jawahery, A., Jeffreys, P.W., Jeremie, H., Jimack, M., Joly, A., Jones, C.R., Jones, G., Jones, M., Jost, U., Jovanovic, P., Junk, T.R., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Kayal, P.I., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kirk, J., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Koetke, D.S., Kokott, T.P., Kolrep, M., Komamiya, S., Kress, T., Krieger, P., von Krogh, J., Kyberd, P., Lafferty, G.D., Lahmann, R., Lai, W.P., Lanske, D., Lauber, J., Lautenschlager, S.R., Layter, J.G., Lazic, D., Lee, A.M., Lefebvre, E., Lellouch, D., Letts, J., Levinson, L., Lloyd, S.L., Loebinger, F.K., Long, G.D., Losty, M.J., Ludwig, J., Macchiolo, A., Macpherson, A., Mannelli, M., Marcellini, S., Markus, C., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., Mckigney, E.A., McMahon, T.J., McPherson, R.A., Meijers, F., Menke, S., Merritt, F.S., Mes, H., Meyer, J., Michelini, A., Mikenberg, G., Miller, D.J., Mincer, A., Mir, R., Mohr, W., Montanari, A., Mori, T., Morii, M., Muller, U., Mihara, S., Nagai, K., Nakamura, I., Neal, H.A., Nellen, B., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Oh, A., Oldershaw, N.J., Oreglia, M.J., Orito, S., Palinkas, J., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Pearce, M.J., Perez-Ochoa, R., Petzold, S., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poffenberger, P., Poli, B., Posthaus, A., Rees, D.L., Rigby, D., Robertson, S., Robins, S.A., Rodning, N., Roney, J.M., Rooke, A., Ros, E., Rossi, A.M., Routenburg, P., Rozen, Y., Runge, K., Runolfsson, O., Ruppel, U., Rust, D.R., Rylko, R., Sachs, K., Saeki, T., Sarkisian, E.K.G., Sbarra, C., Schaile, A.D., Schaile, O., Scharf, F., Scharff-Hansen, P., Schenk, P., Schieck, J., Schleper, P., Schmitt, B., Schmitt, S., Schoning, A., Schroder, Matthias, Schultz-Coulon, H.C., Schumacher, M., Schwick, C., Scott, W.G., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G.P., Sittler, A., Skillman, A., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Springer, Robert Wayne, Sproston, M., Stephens, K., Steuerer, J., Stockhausen, B., Stoll, K., Strom, David M., Szymanski, P., Tafirout, R., Talbot, S.D., Tanaka, S., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomson, M.A., von Torne, E., Towers, S., Trigger, I., Trocsanyi, Z., Tsur, E., Turcot, A.S., Turner-Watson, M.F., Utzat, P., Van Kooten, Rick J., Verzocchi, M., Vikas, P., Vokurka, E.H., Voss, H., Wackerle, F., Wagner, A., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wermes, N., White, J.S., Wilkens, B., Wilson, G.W., Wilson, J.A., Wolf, G., Wyatt, T.R., Yamashita, S., Yekutieli, G., Zacek, V., and Zer-Zion, D.
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment
Abstract: This paper describes the measurement of the W boson mass, M_W, and decay width, Gamma_W, from the direct reconstruction of the invariant mass of its decay products in W pair events collected at a mean centre-of-mass energy of sqrt{s} = 172.12 GeV with the OPAL detector at LEP. Measurements of the W pair production cross-section, the W decay branching fractions and properties of the W decay final states are also described. A total of 120 candidate W^+W^- events has been selected for an integrated luminosity of 10.36 pb^-1. The W^+W^- production cross-section is measured to be sigma_WW = 12.3 +/- 1.3(stat.) +/- 0.3(syst.) pb, consistent with the Standard Model expectation. The W^+W^- -> qq(bar) l nu and W^+W^- -> qq(bar)qq(bar) final states are used to obtain a direct measurement of Gamma_W = 1.30^{+0.62}_{-0.55}(stat.) +/- 0.18(syst.) GeV. Assuming the Standard Model relation between M_W and Gamma_W, the W boson mass is measured to be M_W = 80.32 +/- 0.30(stat.) +/- 0.09(syst.) GeV. The event properties of the fully-hadronic decays of W^+W^- events are compared to those of the semi-leptonic decays. At the current level of precision there is no evidence for effects of colour reconnection in the observables studied. Combining data recorded by OPAL at sqrt{s} ~ 161-172 GeV, the W boson branching fraction to hadrons is determined to be 69.8^{+3.0}_{-3.2}(stat.) +/- 0.7(syst.)%, consistent with the prediction of the Standard Model. The combined mass measurement from direct reconstruction and from the W^+W^- production cross-sections measured at sqrt{s} ~ 161 and sqrt{s} ~ 172 GeV is M_W = 80.35 +/- 0.24(stat.) +/- 0.07(syst.) GeV. This paper describes the measurement of the W boson mass, M_W, and decay width, Gamma_W, from the direct reconstruction of the invariant mass of its decay products in W pair events collected at a mean centre-of-mass energy of sqrt{s} = 172.12 GeV with the OPAL detector at LEP. Measurements of the W pair production cross-section, the W decay branching fractions and properties of the W decay final states are also described. A total of 120 candidate W^+W^- events has been selected for an integrated luminosity of 10.36 pb^-1. The W^+W^- production cross-section is measured to be sigma_WW = 12.3 +/- 1.3(stat.) +/- 0.3(syst.) pb, consistent with the Standard Model expectation. The W^+W^- -> qq(bar) l nu and W^+W^- -> qq(bar)qq(bar) final states are used to obtain a direct measurement of Gamma_W = 1.30^{+0.62}_{-0.55}(stat.) +/- 0.18(syst.) GeV. Assuming the Standard Model relation between M_W and Gamma_W, the W boson mass is measured to be M_W = 80.32 +/- 0.30(stat.) +/- 0.09(syst.) GeV. The event properties of the fully-hadronic decays of W^+W^- events are compared to those of the semi-leptonic decays. At the current level of precision there is no evidence for effects of colour reconnection in the observables studied. Combining data recorded by OPAL at sqrt{s} ~ 161-172 GeV, the W boson branching fraction to hadrons is determined to be 69.8^{+3.0}_{-3.2}(stat.) +/- 0.7(syst.)%, consistent with the prediction of the Standard Model. The combined mass measurement from direct reconstruction and from the W^+W^- production cross-sections measured at sqrt{s} ~ 161 and sqrt{s} ~ 172 GeV is M_W = 80.35 +/- 0.24(stat.) +/- 0.07(syst.) GeV.
Published: 1998

210. W+W- production and triple gauge boson couplings at LEP energies up to 183 GeV

Author: Abbiendi, G., Ackerstaff, K., Alexander, G., Allison, John, Altekamp, N., Anderson, K.J., Anderson, S., Arcelli, S., Asai, S., Ashby, S.F., Axen, D., Azuelos, G., Ball, A.H., Barberio, E., Barlow, Roger J., Bartoldus, R., Batley, J.R., Baumann, S., Bechtluft, J., Behnke, T., Bell, Kenneth Watson, Bella, G., Bellerive, A., Bentvelsen, S., Bethke, S., Betts, S., Biebel, O., Biguzzi, A., Bird, S.D., Blobel, V., Bloodworth, I.J., Bock, P., Bohme, J., Bonacorsi, D., Boutemeur, M., Braibant, S., Bright-Thomas, P., Brigliadori, L., Brown, Robert M., Burckhart, H.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., Conboy, J.E., Cooke, O.C., Couyoumtzelis, C., Coxe, R.L., Cuffiani, M., Dado, S., Dallavalle, G.Marco, Davis, R., De Jong, S., De Roeck, A., Dervan, P., Desch, K., Dienes, B., Dixit, M.S., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Eatough, D., Estabrooks, P.G., Etzion, E., Fabbri, F., Fanti, M., Faust, A.A., Fiedler, F., Fierro, M., Fleck, I., Folman, R., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gascon, J., Gascon-Shotkin, S.M., 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., Gruwe, M., Hanson, G.G., Hansroul, M., Hapke, M., Harder, K., Harel, A., Hargrove, C.K., Hartmann, C., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Herndon, M., Herten, G., Heuer, R.D., Hildreth, M.D., Hill, J.C., Hobson, P.R., Hoch, M., 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., 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., Kluth, S., Kobayashi, T., Kobel, M., Koetke, D.S., Kokott, T.P., Kolrep, M., Komamiya, S., Kowalewski, Robert V., Kress, T., Krieger, P., von Krogh, J., Kuhl, T., Kyberd, P., Lafferty, G.D., Landsman, H., Lanske, D., Lauber, J., Lautenschlager, S.R., Lawson, I., Layter, J.G., Lazic, D., Lee, A.M., 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., Ludwig, J., Lui, D., Macchiolo, A., Macpherson, A., Mader, W., Mannelli, M., Marcellini, S., Markopoulos, C., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., Mckigney, E.A., McMahon, T.J., McPherson, R.A., Meijers, F., Menke, S., Merritt, F.S., Mes, H., Meyer, J., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Mir, R., Mohr, W., Montanari, A., Mori, T., Nagai, K., Nakamura, I., Neal, H.A., Nellen, B., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Oreglia, M.J., Orito, S., Palinkas, J., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Perez-Ochoa, R., Petzold, S., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poffenberger, P., Polok, J., Przybycien, M., Rembser, C., Rick, H., Robertson, S., Robins, S.A., Rodning, N., Roney, J.M., 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., Scharf, F., Scharff-Hansen, P., Schieck, J., Schmitt, B., 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., Sittler, A., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Spagnolo, S., Sproston, M., Stahl, A., Stephens, K., Steuerer, J., Stoll, K., Strom, David M., Strohmer, R., Surrow, B., Talbot, S.D., Tanaka, S., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomas, J., Thomson, M.A., von Torne, E., Torrence, E., Towers, S., Trigger, I., Trocsanyi, Z., Tsur, E., Turcot, A.S., Turner-Watson, M.F., Ueda, I., Vachon, B., Van Kooten, Rick J., Vannerem, P., Verzocchi, M., Voss, H., Wackerle, F., Wagner, A., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wermes, N., White, J.S., Wilson, G.W., Wilson, J.A., Wyatt, T.R., Yamashita, S., Yekutieli, G., Zacek, V., and Zer-Zion, D.
Subjects: Physics, Gauge boson, Particle physics, Luminosity (scattering theory), Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Branching fraction, Hadron, FOS: Physical sciences, Fizikai tudományok, Lambda, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, Standard Model, High Energy Physics - Experiment (hep-ex), Természettudományok, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Engineering (miscellaneous), Particle Physics - Experiment, Lepton, Boson
Abstract: A study of W-pair production in e+e- annihilations at Lep2 is presented, based on 877 W+W- candidates corresponding to an integrated luminosity of 57 pb-1 at sqrt(s) = 183 GeV. Assuming that the angular distributions of the W-pair production and decay, as well as their branching fractions, are described by the Standard Model, the W-pair production cross-section is measured to be 15.43 +- 0.61 (stat.) +- 0.26 (syst.) pb. Assuming lepton universality and combining with our results from lower centre-of-mass energies, the W branching fraction to hadrons is determined to be 67.9 +- 1.2 (stat.) +- 0.5 (syst.)%. The number of W-pair candidates and the angular distributions for each final state (qqlnu,qqqq,lnulnu) are used to determine the triple gauge boson couplings. After combining these values with our results from lower centre-of-mass energies we obtain D(kappa_g)=0.11+0.52-0.37, D(g^z_1)=0.01+0.13-0.12 and lambda=-0.10+0.13-0.12, where the errors include both statistical and systematic uncertainties and each coupling is determined setting the other two couplings to the Standard Model value. The fraction of W bosons produced with a longitudinal polarisation is measured to be 0.242+-0.091(stat.)+-0.023(syst.). All these measurements are consistent with the Standard Model expectations., Comment: 48 pages, LaTeX, including 13 eps or ps figures, submitted to European Physical Journal C
Published: 1998
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211. Tests of the standard model and constraints on new physics from measurements of fermion-pair production at 130-172GeV at LEP

Author: Ackerstaff, K., Alexander, G., Allison, J., Altekamp, N., Anderson, K. J., Anderson, S., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Ball, A. H., Barberio, E., Barlow, R. J., Bartoldus, R., Batley, J. R., Baumann, S., Bechtluft, J., Beeston, C., Behnke, T., Bell, A. N., Bell, K. W., Bella, G., Bentvelsen, S., Bethke, S., Biebel, O., Biguzzi, A., Bird, S. D., Blobel, V., Bloodworth, I. J., Bloomer, J. E., Bobinski, M., Bock, P., Bonacorsi, D., Boutemeur, M., Bouwens, B. T., Braibant, S., Brigliadori, L., Brown, R. M., Burckhart, H. J., Burgard, C., Bürgin, R., Capiluppi, P., Carnegie, R. K., Carter, A. A., Carter, J. R., Chang, C. Y., Charlton, D. G., Chrisman, D., Clarke, P. E. L., Cohen, I., Conboy, J. E., Cooke, O. C., Cuffiani, M., Dado, S., Dallapiccola, C., Dallavalle, G. M., Davis, R., Jong, S., Del Pozo, L. A., Desch, K., Dienes, B., Dixit, M. S., Do Couto E Silva, E., Doucet, M., Duchovni, E., Duckeck, G., Duerdoth, I. P., Eatough, D., Edwards, J. E. G., Estabrooks, P. G., Evans, H. G., Evans, M., Fabbri, F., Fanti, M., Faust, A. A., Fiedler, F., Fierro, M., Fischer, H. M., Fleck, I., Folman, R., Fong, D. G., Foucher, M., Fürtjes, A., Futyan, D. I., Gagnon, P., Gary, J. W., Gascon, J., Gascon-Shotkin, S. M., Geddes, N. I., Geich-Gimbel, C., Geralis, T., Giacomelli, G., Giacomelli, P., Giacomelli, R., Gibson, V., Gibson, W. R., Gingrich, D. M., Glenzinski, D., Goldberg, J., Goodrick, M. J., Gorn, W., Grandi, C., Gross, E., Grunhaus, J., Gruwe, M., Hajdu, C., Hanson, G. G., Hansroul, M., Hapke, M., Hargrove, C. K., Hart, P. A., Hartmann, C., Hauschild, M., Hawkes, C. M., Hawkings, R., Hemingway, R. J., Herndon, M., Herten, G., Heuer, R. D., Hildreth, M. D., Hill, J. C., Hillier, S. J., Peter Hobson, Homer, R. J., Honma, A. K., Horváth, D., Hossain, K. R., Howard, R., Hüntemeyer, P., Hutchcroft, D. E., Igo-Kemenes, P., Imrie, D. C., Ingram, M. R., Ishii, K., Jawahery, A., Jeffreys, P. W., Jeremie, H., Jimack, M., Joly, A., Jones, C. R., Jones, G., Jones, M., Jost, U., Jovanovic, P., Junk, T. R., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Kayal, P. I., Keeler, R. K., Kellogg, R. G., Kennedy, B. W., Kirk, J., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Koetke, D. S., Kokott, T. P., Kolrep, M., Komamiya, S., Kress, T., Krieger, P., Krogh, J., Kyberd, P., Lafferty, G. D., Lahmann, R., Lai, W. P., Lanske, D., Lauber, J., Lautenschlager, S. R., Layter, J. G., Lazic, D., Lee, A. M., Lefebvre, E., Lellouch, D., Letts, J., Levinson, L., Lloyd, S. L., Loebinger, F. K., Long, G. D., Losty, M. J., Ludwig, J., Macchiolo, A., Macpherson, A., Mannelli, M., Marcellini, S., Markus, C., 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., Menke, S., Merritt, F. S., Mes, H., Meyer, J., Michelini, A., Mikenberg, G., Miller, D. J., Mincer, A., Mir, R., Mohr, W., Montanari, A., Mori, T., Morii, M., Muller, U., Mihara, S., Nagai, K., Nakamura, I., Neal, H. A., Nellen, B., Nisius, R., O Neale, S. W., Oakham, F. G., Odorici, F., Ogren, H. O., Oh, A., Oldershaw, N. J., Oreglia, M. J., Orito, S., Palinkás, J., Pásztor, G., Pater, J. R., Patrick, G. N., Patt, J., Pearce, M. J., Perez-Ochoa, R., Petzold, S., Pfeifenschneider, P., Pilcher, J. E., Pinfold, J., Plane, D. E., Poffenberger, P., Poli, B., Posthaus, A., Rees, D. L., Rigby, D., Robertson, S., Robins, S. A., Rodning, N., Roney, J. M., Rooke, A., Ros, E., Rossi, A. M., Routenburg, P., Rozen, Y., Runge, K., Runolfsson, O., Ruppel, U., Rust, D. R., Rylko, R., Sachs, K., Saeki, T., Sarkisyan, E. K. G., Sbarra, C., Schaile, A. D., Schaile, O., Scharf, F., Scharff-Hansen, P., Schenk, P., Schieck, J., Schleper, P., Schmitt, B., Schmitt, S., Schüning, A., Schrüder, M., Schultz-Coulon, H. C., Schumacher, M., Schwick, C., Scott, W. G., Shears, T. G., Shen, B. C., Shepherd-Themistocleous, C. H., Sherwood, P., Siroli, G. P., Sittler, A., Skillman, A., Skuja, A., Smith, A. M., Snow, G. A., Sobie, R., Soldner-Rembold, S., Springer, R. W., Sproston, M., Stephens, K., Steuerer, J., Stockhausen, B., Stoll, K., Strom, D., Szymanski, P., Tafirout, R., Talbot, S. D., Tanaka, S., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomson, M. A., Türne, E., Towers, S., Trigger, I., Trócsányi, Z., Tsur, E., Turcot, A. S., Turner-Watson, M. F., Utzat, P., Kooten, R., Verzocchi, M., Vikas, P., Vokurka, E. H., 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., White, J. S., Wilkens, B., Wilson, G. W., Wilson, J. A., Wolf, G., Wyatt, T. R., Yamashita, S., Yekutieli, G., Zacek, V., and Zer-Zion, D.
Subjects: BHABHA SCATTERING, E+E ANNIHILATION, OF-MASS ENERGIES, 130 GEV-LESS-THAN-ROOT-S-LESS-THAN-140 GEV, HADRONIC CROSS-SECTION, High Energy Physics::Phenomenology, P(P)OVER-BAR COLLISIONS, MONTE-CARLO PROGRAM, OPAL EXPERIMENT, High Energy Physics::Experiment, ROOT-S=1.8 TEV, INCLUSIVE MUON PRODUCTION, Particle Physics - Experiment
Abstract: Production of events with hadronic and leptonic final states has been measured in e^+e^- collisions at centre-of-mass energies of 130-172 GeV, using the OPAL detector at LEP. Cross-sections and leptonic forward-backward asymmetries are presented, both including and excluding the dominant production of radiative Z \gamma events, and compared to Standard Model expectations. The ratio R_b of the cross-section for bb(bar) production to the hadronic cross-section has been measured. In a model-independent fit to the Z lineshape, the data have been used to obtain an improved precision on the measurement of \gamma-Z interference. The energy dependence of \alpha_em has been investigated. The measurements have also been used to obtain limits on extensions of the Standard Model described by effective four-fermion contact interactions, to search for t-channel contributions from new massive particles and to place limits on chargino pair production with subsequent decay of the chargino into a light gluino and a quark pair. Production of events with hadronic and leptonic final states has been measured in e^+e^- collisions at centre-of-mass energies of 130-172 GeV, using the OPAL detector at LEP. Cross-sections and leptonic forward-backward asymmetries are presented, both including and excluding the dominant production of radiative Z \gamma events, and compared to Standard Model expectations. The ratio R_b of the cross-section for bb(bar) production to the hadronic cross-section has been measured. In a model-independent fit to the Z lineshape, the data have been used to obtain an improved precision on the measurement of \gamma-Z interference. The energy dependence of \alpha_em has been investigated. The measurements have also been used to obtain limits on extensions of the Standard Model described by effective four-fermion contact interactions, to search for t-channel contributions from new massive particles and to place limits on chargino pair production with subsequent decay of the chargino into a light gluino and a quark pair. Production of events with hadronic and leptonic final states has been measured in e^+e^- collisions at centre-of-mass energies of 130-172 GeV, using the OPAL detector at LEP. Cross-sections and leptonic forward-backward asymmetries are presented, both including and excluding the dominant production of radiative Z \gamma events, and compared to Standard Model expectations. The ratio R_b of the cross-section for bb(bar) production to the hadronic cross-section has been measured. In a model-independent fit to the Z lineshape, the data have been used to obtain an improved precision on the measurement of \gamma-Z interference. The energy dependence of \alpha_em has been investigated. The measurements have also been used to obtain limits on extensions of the Standard Model described by effective four-fermion contact interactions, to search for t-channel contributions from new massive particles and to place limits on chargino pair production with subsequent decay of the chargino into a light gluino and a quark pair.
Published: 1998

212. Search for anomalous production of di-lepton events with missing transverse momentum in e(+)e(-) collisions at root s = 161 and 172 GeV

Author: Ackerstaff, K, Alexander, G, Allison, J, Altekamp, N, Anderson, KJ, Anderson, S, Arcelli, S, Asai, S, Axen, D, Azuelos, G, Ball, AH, Barberio, E, Barlow, RJ, Bartoldus, R, Batley, JR, Baumann, S, Bechtluft, J, Beeston, C, Behnke, T, Bell, AN, Bell, KW, Bella, G, Bentvelsen, S, Bethke, S, Biebel, O, Biguzzi, A, Bird, SD, Blobel, V, Bloodworth, IJ, Bloomer, JE, Bobinski, M, Bock, P, Bonacorsi, D, Boutemeur, M, Bouwens, BT, Braibant, S, Brigliadori, L, Brown, RM, Burckhart, HJ, Burgard, C, Burgin, R, Capiluppi, P, Carnegie, RK, Carter, AA, Carter, JR, Chang, CY, Charlton, DG, Chrisman, D, Clarke, PEL, Cohen, I, Conboy, JE, Cooke, OC, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, GM, Davis, R, De Jong, S, del Pozo, LA, Desch, K, Dienes, B, Dixit, MS, Silva, EDE, Doucet, M, Duchovni, E, Duckeck, G, Duerdoth, IP, Eatough, D, Edwards, JEG, Estabrooks, PG, Evans, HG, Evans, M, Fabbri, F, Fanti, M, Faust, AA, Fiedler, F, Fierro, M, Fischer, HM, Fleck, I, Folman, R, Fong, DG, Foucher, M, Furtjes, A, Futyan, DI, Gagnon, P, Gary, JW, Gascon, J, Gascon-Shotkin, SM, Geddes, NI, Geich-Gimbel, C, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, WR, Gingrich, DM, Glenzinski, D, Goldberg, J, Goodrick, MJ, Gorn, W, Grandi, C, Gross, E, Grunhaus, J, Gruwe, M, Hajdu, C, Hanson, GG, Hansroul, M, Hapke, M, Hargrove, CK, Hart, PA, Hartmann, C, Hauschild, M, Hawkes, CM, Hawkings, R, Hemingway, RJ, Herndon, M, Herten, G, Heuer, RD, Hildreth, MD, Hill, JC, Hillier, SJ, Hobson, PR, Homer, RJ, Honma, AK, Horvath, D, Hossain, KR, Howard, R, Huntemeyer, P, Hutchcroft, DE, Igo-Kemenes, P, Imrie, DC, Ingram, MR, Ishii, K, Jawahery, A, Jeffreys, PW, Jeremie, H, Jimack, M, Joly, A, Jones, CR, Jones, G, Jones, M, Jost, U, Jovanovic, P, Junk, TR, Karlen, D, Kartvelishvili, V, Kawagoe, K, Kawamoto, T, Kayal, PI, Keeler, RK, Kellogg, RG, Kennedy, BW, Kirk, J, Klier, A, Kluth, S, Kobayashi, T, Kobel, M, Koetke, DS, Kokott, TP, Kolrep, M, Komamiya, S, Kress, T, Krieger, P, von Krogh, J, Kyberd, P, Lafferty, GD, Lahmann, R, Lai, WP, Lanske, D, Lauber, J, Lautenschlager, SR, Layter, JG, Lazic, D, Lee, AM, Lefebvre, E, Lellouch, D, Letts, J, Levinson, L, Lloyd, SL, Loebinger, FK, Long, GD, Losty, MJ, Ludwig, J, Macchiolo, A, Macpherson, A, Mannelli, M, Marcellini, S, Markus, C, Martin, AJ, Martin, JP, Martinez, G, Mashimo, T, Mattig, P, McDonald, WJ, McKenna, J, Mckigney, EA, McMahon, TJ, McPherson, RA, Meijers, F, Menke, S, Merritt, FS, Mes, H, Meyer, J, Michelini, A, Mikenberg, G, Miller, DJ, Mincer, A, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Muller, U, Mihara, S, Nagai, K, Nakamura, I, Neal, HA, Nellen, B, Nisius, R, O'Neale, SW, Oakham, FG, Odorici, F, Ogren, HO, Oh, A, Oldershaw, NJ, Oreglia, MJ, Orito, S, Palinkas, J, Pasztor, G, Pater, JR, Patrick, GN, Patt, J, Pearce, MJ, Perez-Ochoa, R, Petzold, S, Pfeifenschneider, P, Pilcher, JE, Pinfold, J, Plane, DE, Poffenberger, P, Poli, B, Posthaus, A, Rees, DL, Rigby, D, Robertson, S, Robins, SA, Rodning, N, Roney, JM, Rooke, A, Ros, E, Rossi, AM, Routenburg, P, Rozen, Y, Runge, K, Runolfsson, O, Ruppel, U, Rust, DR, Rylko, R, Sachs, K, Saeki, T, Sarkisyan, EKG, Sbarra, C, Schaile, AD, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schieck, J, Schleper, P, Schmitt, B, Schmitt, S, Schoning, A, Schroder, M, Schultz-Coulon, HC, Schumacher, M, Schwick, C, Scott, WG, Shears, TG, Shen, BC, Shepherd-Themistocleous, CH, Sherwood, P, Siroli, GP, Sittler, A, Skillman, A, Skuja, A, Smith, AM, Snow, GA, Sobie, R, Soldner-Rembold, S, Springer, RW, Sproston, M, Stephens, K, Steuerer, J, Stockhausen, B, Stoll, K, Strom, D, Szymanski, P, Tafirout, R, Talbot, SD, Tanaka, S, Taras, P, Tarem, S, Teuscher, R, Thiergen, M, Thomson, MA, von Torne, E, Towers, S, Trigger, L, Trocsanyi, Z, Tsur, E, Turcot, AS, Turner-Watson, MF, Utzat, P, Van Kooten, R, Verzocchi, M, Vikas, P, Vokurka, EH, Voss, H, Wackerle, F, Wagner, A, Ward, CP, Ward, DR, Watkins, PM, Watson, AT, Watson, NK, Wells, PS, Wermes, N, White, JS, Wilkens, B, Wilson, GW, Wilson, JA, Wolf, G, Wyatt, TR, Yamashita, S, Yekutieli, G, Zacek, V, Zer-Zion, D, and OPAL Collaboration
Subjects: OPAL, MONTE-CARLO PROGRAM, MICROVERTEX DETECTOR, HIGH-ENERGIES
Published: 1998

213. Search for a massive Di-photon resonance at root s=91-172 GeV

Author: Ackerstaff, K, Alexander, G, Allison, J, Altekamp, N, Anderson, KJ, Anderson, S, Arcelli, S, Asai, S, Axen, D, Azuelos, G, Ball, AH, Barberio, E, Barlow, RJ, Bartoldus, R, Batley, JR, Baumann, S, Bechtluft, J, Beeston, C, Behnke, T, Bell, AN, Bell, KW, Bella, G, Bentvelsen, S, Bethke, S, Biebel, O, Biguzzi, A, Bird, SD, Blobel, V, Bloodworth, IJ, Bloomer, JE, Bobinski, M, Bock, P, Bonacorsi, D, Boutemeur, M, Bouwens, BT, Braibant, S, Brigliadori, L, Brown, RM, Burckhart, HJ, Burgard, C, Burgin, R, Capiluppi, P, Carnegie, RK, Carter, AA, Carter, JR, Chang, CY, Charlton, DG, Chrisman, D, Clarke, PEL, Cohen, I, Conboy, JE, Cooke, OC, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, GM, Davis, R, De Jong, S, del Pozo, LA, Desch, K, Dienes, B, Dixit, MS, Silva, ED, Doucet, M, Duchovni, E, Duckeck, G, Duerdoth, IP, Eatough, D, Edwards, JEG, Estabrooks, PG, Evans, HG, Evans, M, Fabbri, F, Fanti, M, Faust, AA, Fiedler, F, Fierro, M, Fischer, HM, Fleck, I, Folman, R, Fong, DG, Foucher, M, Furtjes, A, Futyan, DI, Gagnon, P, Gary, JW, Gascon, J, Gascon-Shotkin, SM, Geddes, NI, Geich-Gimbel, C, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, WR, Gingrich, DM, Glenzinski, D, Goldberg, J, Goodrick, MJ, Gorn, W, Grandi, C, Gross, E, Grunhaus, J, Gruwe, M, Hajdu, C, Hanson, GG, Hansroul, M, Hapke, M, Hargrove, CK, Hart, PA, Hartmann, C, Hauschild, M, Hawkes, CM, Hawkings, R, Hemingway, RJ, Herndon, M, Herten, G, Heuer, RD, Hildreth, MD, Hill, JC, Hillier, SJ, Hobson, PR, Homer, RJ, Honma, AK, Horvath, D, Hossain, KR, Howard, R, Huntemeyer, P, Hutchcroft, DE, Igo-Kemenes, P, Imrie, DC, Ingram, MR, Ishii, K, Jawahery, A, Jeffreys, PW, Jeremie, H, Jimack, M, Joly, A, Jones, CR, Jones, G, Jones, M, Jost, U, Jovanovic, P, Junk, TR, Karlen, D, Kartvelishvili, V, Kawagoe, K, Kawamoto, T, Kayal, PI, Keeler, RK, Kellogg, RG, Kennedy, BW, Kirk, J, Klier, A, Kluth, S, Kobayashi, T, Kobel, M, Koetke, DS, Kokott, TP, Kolrep, M, Komamiya, S, Kress, T, Krieger, P, von Krogh, J, Kyberd, P, Lafferty, GD, Lahmann, R, Lai, WP, Lanske, D, Lauber, J, Lautenschlager, SR, Layter, JG, Lazic, D, Lee, AM, Lefebvre, E, Lellouch, D, Letts, J, Levinson, L, Lloyd, SL, Loebinger, FK, Long, GD, Losty, MJ, Ludwig, J, Macchiolo, A, Macpherson, A, Mannelli, M, Marcellini, S, Markus, C, Martin, AJ, Martin, JP, Martinez, G, Mashimo, T, Mattig, P, McDonald, WJ, McKenna, J, Mckigney, EA, McMahon, TJ, McPherson, RA, Meijers, F, Menke, S, Merritt, FS, Mes, H, Meyer, J, Michelini, A, Mikenberg, G, Miller, DJ, Mincer, A, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Muller, U, Mihara, S, Nagai, K, Nakamura, I, Neal, HA, Nellen, B, Nisius, R, O'Neale, SW, Oakham, FG, Odorici, F, Ogren, HO, Oh, A, Oldershaw, NJ, Oreglia, MJ, Orito, S, Palinkas, J, Pasztor, G, Pater, JR, Patrick, GN, Patt, J, Pearce, MJ, Perez-Ochoa, R, Petzold, S, Pfeifenschneider, P, Pilcher, JE, Pinfold, J, Plane, DE, Poffenberger, P, Poli, B, Posthaus, A, Rees, DL, Rigby, D, Robertson, S, Robins, SA, Rodning, N, Roney, JM, Rooke, A, Ros, E, Rossi, AM, Routenburg, P, Rozen, Y, Runge, K, Runolfsson, O, Ruppel, U, Rust, DR, Rylko, R, Sachs, K, Saeki, T, Sarkisyan, EKG, Sbarra, C, Schaile, AD, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schieck, J, Schleper, P, Schmitt, B, Schmitt, S, Schoning, A, Schroder, M, Schultz-Coulon, HC, Schumacher, M, Schwick, C, Scott, WG, Shears, TG, Shen, BC, Shepherd-Themistocleous, CH, Sherwood, P, Siroli, GP, Sittler, A, Skillman, A, Skuja, A, Smith, AM, Snow, GA, Sobie, R, Soldner-Rembold, S, Springer, RW, Sproston, M, Stephens, K, Steuerer, J, Stockhausen, B, Stoll, K, Strom, D, Szymanski, P, Tafirout, R, Talbot, SD, Tanaka, S, Taras, P, Tarem, S, Teuscher, R, Thiergen, M, Thomson, MA, von Torne, E, Towers, S, Trigger, I, Trocsanyi, Z, Tsur, E, Turcot, AS, Turner-Watson, MF, Utzat, P, Van Kooten, R, Verzocchi, M, Vikas, P, Vokurka, EH, Voss, H, Wackerle, F, Wagner, A, Ward, CP, Ward, DR, Watkins, PM, Watson, AT, Watson, NK, Wells, PS, Wermes, N, White, JS, Wilkens, B, Wilson, GW, Wilson, JA, Wolf, G, Wyatt, TR, Yamashita, S, Yekutieli, G, Zacek, V, Zer-Zion, D, and OPAL Collaboration
Subjects: PHYSICS, OPAL JET CHAMBER, E+E ANNIHILATION, ENERGIES, LUND MONTE-CARLO, HIGGS BOSONS, ELECTROWEAK COUPLINGS, LEP, MICROVERTEX DETECTOR, CROSS-SECTIONS
Published: 1998

214. Measurements of the $B^{0}_s$ and $\Lambda^{0}_b$ lifetimes

Author: Ackerstaff, K., Alexander, G., Allison, John, Altekamp, N., Anderson, K.J., Anderson, S., Arcelli, S., Asai, S., Ashby, S.F., Axen, D., Azuelos, G., Ball, A.H., Barberio, E., Barlow, Roger J., Bartoldus, R., Batley, J.R., Baumann, S., Bechtluft, J., Behnke, T., Bell, Kenneth Watson, Bella, G., Bentvelsen, S., Bethke, S., Betts, S., Biebel, O., Biguzzi, A., Bird, S.D., Blobel, V., Bloodworth, I.J., Bobinski, M., Bock, P., Bonacorsi, D., Boutemeur, M., Braibant, S., Brigliadori, L., Brown, Robert M., Burckhart, H.J., Burgard, C., Burgin, R., Capiluppi, P., Carnegie, R.K., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Chrisman, D., Clarke, P.E.L., Cohen, I., Conboy, J.E., Cooke, O.C., Couyoumtzelis, C., Coxe, R.L., Cuffiani, M., Dado, S., Dallapiccola, C., Dallavalle, G.Marco, Davis, R., De Jong, S., del Pozo, L.A., de Roeck, A., Desch, K., Dienes, B., Dixit, M.S., Doucet, M., Duchovni, E., Duckeck, G., Duerdoth, I.P., Eatough, D., Estabrooks, P.G., Etzion, E., Evans, H.G., Evans, M., Fabbri, F., Fanfani, A., Fanti, M., Faust, A.A., Feld, L., Fiedler, F., Fierro, M., Fischer, H.M., Fleck, I., Folman, R., Fong, D.G., Foucher, M., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gascon, J., Gascon-Shotkin, S.M., Geddes, N.I., Geich-Gimbel, C., Geralis, T., Giacomelli, G., Giacomelli, P., Giacomelli, R., Gibson, V., Gibson, W.R., Gingrich, D.M., Glenzinski, D., Goldberg, J., Goodrick, M.J., Gorn, W., Grandi, C., Gross, E., Grunhaus, J., Gruwe, M., Hajdu, C., Hanson, G.G., Hansroul, M., Hapke, M., Hargrove, C.K., Hart, P.A., Hartmann, C., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Herndon, M., Herten, G., Heuer, R.D., Hildreth, M.D., Hill, J.C., Hillier, S.J., Hobson, P.R., Hocker, James Andrew, Homer, R.J., Honma, A.K., Horvath, D., Hossain, K.R., Howard, R., Huntemeyer, P., Hutchcroft, D.E., Igo-Kemenes, P., Imrie, D.C., Ishii, K., Jawahery, A., Jeffreys, P.W., Jeremie, H., Jimack, M., Joly, A., Jones, C.R., Jones, M., Jost, U., Jovanovic, P., Junk, T.R., Kanzaki, J., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Kayal, P.I., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kirk, J., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Koetke, D.S., Kokott, T.P., Kolrep, M., Komamiya, S., Kowalewski, Robert V., Kress, T., Krieger, P., von Krogh, J., Kyberd, P., Lafferty, G.D., Lahmann, R., Lai, W.P., Lanske, D., Lauber, J., Lautenschlager, S.R., Lawson, I., Layter, J.G., Lazic, D., Lee, A.M., Lefebvre, E., Lellouch, D., Letts, J., Levinson, L., List, B., Lloyd, S.L., Loebinger, F.K., Long, G.D., Losty, M.J., Ludwig, J., Lui, D., Macchiolo, A., Macpherson, A., Mannelli, M., Marcellini, S., Markopoulos, C., Markus, C., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., Mckigney, E.A., McMahon, T.J., McPherson, R.A., Meijers, F., Menke, S., Merritt, F.S., Mes, H., Meyer, J., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Mincer, A., Mir, R., Mohr, W., Montanari, A., Mori, T., Nagai, K., Nakamura, I., Neal, H.A., Nellen, B., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Oh, A., Oldershaw, N.J., Oreglia, M.J., Orito, S., Palinkas, J., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Perez-Ochoa, R., Petzold, S., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poffenberger, P., Poli, B., Posthaus, A., Rembser, C., Robertson, S., Robins, S.A., Rodning, N., Roney, J.M., Rooke, A., Rossi, A.M., Routenburg, P., Rozen, Y., Runge, K., Runolfsson, O., Ruppel, U., Rust, D.R., Sachs, K., Saeki, T., Sang, W.M., Sarkisian, E.K.G., Sbarra, C., Schaile, A.D., Schaile, O., Scharf, F., Scharff-Hansen, P., Schieck, J., Schleper, P., Schmitt, B., Schmitt, S., Schoning, A., Schroder, Matthias, Schumacher, M., Schwick, C., Scott, W.G., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G.P., Sittler, A., Skillman, A., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Springer, Robert Wayne, Sproston, M., Stephens, K., Steuerer, J., Stockhausen, B., Stoll, K., Strom, David M., Strohmer, R., Szymanski, P., Tafirout, R., Talbot, S.D., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomson, M.A., von Torne, E., Torrence, E., Towers, S., Trigger, I., Trocsanyi, Z., Tsur, E., Turcot, A.S., Turner-Watson, M.F., Ueda, I., Utzat, P., Van Kooten, Rick J., Vannerem, P., Verzocchi, M., Vikas, P., Vokurka, E.H., Voss, H., Wackerle, F., Wagner, A., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wermes, N., White, J.S., Wilson, G.W., Wilson, J.A., Wyatt, T.R., Yamashita, S., Yekutieli, G., Zacek, V., and Zer-Zion, D.
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: This paper presents updated measurements of the lifetimes of the B^0_s meson and the \Lambda_b baryon using 4.4 million hadronic Z^0 decays recorded by the OPAL detector at LEP from 1990 to 1995. A sample of B^0_s decays is obtained using D_s^- \ell^+ combinations, where the D_s^- is fully reconstructed in the in the \phi \ell^- \nu(bar) X decay mode. A sample of \Lambda_b decays is obtained using \Lambda_c^+ \ell^- combinations, where the \Lambda_c^+ is fully reconstructed in its decay to a p K^- \pi^+ final state and partially reconstructed in the \Lambda \ell^+ \nu X decay channel. From 172 +/- 28 D_s^- \tau(B^0_s) = 1.50 +0.16 -0.15 +/- 0.04 ps, where the errors are statistical and systematic, respectively. From the 129 measured lifetime \tau(\Lambda_b) = 1.29 +0.24 -0.22 +/- 0.06 ps, where the errors are statistical and systematic, respectively. This paper presents updated measurements of the lifetimes of the B^0_s meson and the \Lambda_b baryon using 4.4 million hadronic Z^0 decays recorded by the OPAL detector at LEP from 1990 to 1995. A sample of B^0_s decays is obtained using D_s^- \ell^+ combinations, where the D_s^- is fully reconstructed in the \phi \pi^-, K^*0 K^- and K^- K^0_S decay channels and partially reconstructed in the \phi \ell^- \nu(bar) X decay mode. A sample of \Lambda_b decays is obtained using \Lambda_c^+ \ell^- combinations, where the \Lambda_c^+ is fully reconstructed in its decay to a p K^- \pi^+ final state and partially reconstructed in the \Lambda \ell^+ \nu X decay channel. From 172 +/- 28 D_s^- \ell^+ combinations attributed to B^0_s decays, the measured lifetime is \tau(B^0_s) = 1.50 +0.16 -0.15 +/- 0.04 ps, where the errors are statistical and systematic, respectively. From the 129 +\- 25 \Lamda_c^+ \ell^- combinations attributed to \Lambda_b decays, the measured lifetime \tau(\Lambda_b) = 1.29 +0.24 -0.22 This paper presents updated measurements of the lifetimes of the B^0_s meson and the \Lambda_b baryon using 4.4 million hadronic Z^0 decays recorded by the OPAL detector at LEP from 1990 to 1995. A sample of B^0_s decays is obtained using D_s^- \ell^+ combinations, where the D_s^- is fully reconstructed in the \phi \pi^-, K^*0 K^- and K^- K^0_S decay channels and partially reconstructed in the \phi \ell^- \nu(bar) X decay mode. A sample of \Lambda_b decays is obtained using \Lambda_c^+ \ell^- combinations, where the \Lambda_c^+ is fully reconstructed in its decay to a p K^- \pi^+ final state and partially reconstructed in the \Lambda \ell^+ \nu X decay channel. From 172 +/- 28 D_s^- \ell^+ combinations attributed to B^0_s decays, the measured lifetime is \tau(B^0_s) = 1.50 +0.16 -0.15 +/- 0.04 ps, where the errors are statistical and systematic, respectively. From the 129 +\- 25 \Lamda_c^+ \ell^- combinations attributed to \Lambda_b decays, the measured lifetime \tau(\Lambda_b) = 1.29 +0.24 -0.22 +/- 0.06 ps, where the errors are statistical and systematic, respectively. This paper presents updated measurements of the lifetimes of the B s 0 meson and the Λ b 0 baryon using 4.4 million hadronic Z 0 decays recorded by the OPAL detector at LEP from 1990 to 1995. A sample of B s 0 decays is obtained using D s − ℓ + combinations, where the D s − is fully reconstructed in the φπ − , K ∗0 K − and K − K 0 S decay channels and partially reconstructed in the φℓ − ν ̄ X decay mode. A sample of Λ b 0 decays is obtained using Λ c + ℓ − combinations, where the Λ c + is fully reconstructed in its decay to a pK − π + final state and partially reconstructed in the Λ ℓ + ν X decay channel. From 172±28 D s − ℓ + combinations attributed to B s 0 decays, the measured lifetime is τ(B s 0 ) =1.50 +0.16 −0.15 ±0.04 ps , where the errors are statistical and systematic, respectively. From the 129±25 Λ c + ℓ − combinations attributed to Λ b 0 decays, the measured lifetime is τ( Λ b 0 ) =1.29 +0.24 −0.22 ±0.06 ps , where the errors are statistical and systematic, respectively.
Published: 1997

215. Search for anomalous production of photonic events with missing energy in $e^+ e^-$ collisions at $\sqrt{s}$ = 130-172 GeV

Author: Ackerstaff, K., Alexander, G., Allison, John, Altekamp, N., Anderson, K.J., Anderson, S., Arcelli, S., Asai, S., Ashby, S.F., Axen, D., Azuelos, G., Ball, A.H., Barberio, E., Barlow, Roger J., Bartoldus, R., Batley, J.R., Baumann, S., Bechtluft, J., Beeston, C., Behnke, T., Bell, A.N., Bell, Kenneth Watson, Bella, G., Bentvelsen, S., Bethke, S., Betts, S., Biebel, O., Biguzzi, A., Bird, S.D., Blobel, V., Bloodworth, I.J., Bloomer, J.E., Bobinski, M., Bock, P., Bonacorsi, D., Boutemeur, M., Braibant, S., Brigliadori, L., Brown, Robert M., Burckhart, H.J., Burgard, C., Burgin, R., Capiluppi, P., Carnegie, R.K., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Chrisman, D., Clarke, P.E.L., Cohen, I., Conboy, J.E., Cooke, O.C., Couyoumtzelis, C., Coxe, R.L., Cuffiani, M., Dado, S., Dallapiccola, C., Dallavalle, G.Marco, Davis, R., De Jong, S., del Pozo, L.A., Desch, K., Dienes, B., Dixit, M.S., Doucet, M., Duchovni, E., Duckeck, G., Duerdoth, I.P., Eatough, D., Edwards, J.E.G., Estabrooks, P.G., Evans, H.G., Evans, M., Fabbri, F., Fanfani, A., Fanti, M., Faust, A.A., Feld, L., Fiedler, F., Fierro, M., Fischer, H.M., Fleck, I., Folman, R., Fong, D.G., Foucher, M., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gascon, J., Gascon-Shotkin, S.M., Geddes, N.I., Geich-Gimbel, C., Geralis, T., Giacomelli, G., Giacomelli, P., Giacomelli, R., Gibson, V., Gibson, W.R., Gingrich, D.M., Glenzinski, D., Goldberg, J., Goodrick, M.J., Gorn, W., Grandi, C., Gross, E., Grunhaus, J., Gruwe, M., Hajdu, C., Hanson, G.G., Hansroul, M., Hapke, M., Hargrove, C.K., Hart, P.A., Hartmann, C., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Herndon, M., Herten, G., Heuer, R.D., Hildreth, M.D., Hill, J.C., Hillier, S.J., Hobson, P.R., Hocker, James Andrew, Homer, R.J., Honma, A.K., Horvath, D., Hossain, K.R., Howard, R., Huntemeyer, P., Hutchcroft, D.E., Igo-Kemenes, P., Imrie, D.C., Ingram, M.R., Ishii, K., Jawahery, A., Jeffreys, P.W., Jeremie, H., Jimack, M., Joly, A., Jones, C.R., Jones, G., Jones, M., Jost, U., Jovanovic, P., Junk, T.R., Kanzaki, J., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Kayal, P.I., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kirk, J., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Koetke, D.S., Kokott, T.P., Kolrep, M., Komamiya, S., Kress, T., Krieger, P., von Krogh, J., Kyberd, P., Lafferty, G.D., Lahmann, R., Lai, W.P., Lanske, D., Lauber, J., Lautenschlager, S.R., Layter, J.G., Lazic, D., Lee, A.M., Lefebvre, E., Lellouch, D., Letts, J., Levinson, L., Lloyd, S.L., Loebinger, F.K., Long, G.D., Losty, M.J., Ludwig, J., Lui, D., Macchiolo, A., Macpherson, A., Mannelli, M., Marcellini, S., Markopoulos, C., Markus, C., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., Mckigney, E.A., McMahon, T.J., McPherson, R.A., Meijers, F., Menke, S., Merritt, F.S., Mes, H., Meyer, J., Michelini, A., Mikenberg, G., Miller, D.J., Mincer, A., Mir, R., Mohr, W., Montanari, A., Mori, T., Muller, U., Mihara, S., Nagai, K., Nakamura, I., Neal, H.A., Nellen, B., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Oh, A., Oldershaw, N.J., Oreglia, M.J., Orito, S., Palinkas, J., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Perez-Ochoa, R., Petzold, S., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poffenberger, P., Poli, B., Posthaus, A., Rembser, C., Robertson, S., Robins, S.A., Rodning, N., Roney, J.M., Rooke, A., Rossi, A.M., Routenburg, P., Rozen, Y., Runge, K., Runolfsson, O., Ruppel, U., Rust, D.R., Rylko, R., Sachs, K., Saeki, T., Sang, W.M., Sarkisian, E.K.G., Sbarra, C., Schaile, A.D., Schaile, O., Scharf, F., Scharff-Hansen, P., Schieck, J., Schleper, P., Schmitt, B., Schmitt, S., Schoning, A., Schroder, Matthias, Schultz-Coulon, H.C., Schumacher, M., Schwick, C., Scott, W.G., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G.P., Sittler, A., Skillman, A., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Springer, Robert Wayne, Sproston, M., Stephens, K., Steuerer, J., Stockhausen, B., Stoll, K., Strom, David M., Strohmer, R., Szymanski, P., Tafirout, R., Talbot, S.D., Tanaka, S., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomson, M.A., von Torne, E., Torrence, E., Towers, S., Trigger, I., Trocsanyi, Z., Tsur, E., Turcot, A.S., Turner-Watson, M.F., Utzat, P., Van Kooten, Rick J., Verzocchi, M., Vikas, P., Vokurka, E.H., Voss, H., Wackerle, F., Wagner, A., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wermes, N., White, J.S., Wilkens, B., Wilson, G.W., Wilson, J.A., Wyatt, T.R., Yamashita, S., Yekutieli, G., Zacek, V., and Zer-Zion, D.
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: Photonic events with large missing energy have been observed in e+e- collisions at centre-of-mass energies of 130, 136, 161 and 172 GeV using the OPAL detector at LEP. Results are presented based on search topologies designed to select events with a single photon and missing transverse energy or events with a pair of acoplanar photons. In both search topologies, cross-section measurements are performed within the kinematic acceptance of the selection. These results are compared with the expectations from the Standard Model processes e+e- -> nu nu(bar) gamma (gamma) (single-photon) and e+e- -> \nu new physics contributions to these final states. Upper limits on sigma(e+e- -> XY)*Br(X -> Y gamma) and sigma(e+e- -> XX)*Br**2(X -> Y gamma) are derived for the case of stable and invisible Y. These limits apply to single and pair production of excited neutrinos (X = \nu^*, Y = \nu), to neutralino production (X = \chi^0_2, Y = \chi^0_1), and to supersymmetric models in which X = results of the acoplanar-photons search are used to provide model-dependent lower limits on the mass of the lightest neutralino. Photonic events with large missing energy have been observed in e+e- collisions at centre-of-mass energies of 130, 136, 161 and 172 GeV using the OPAL detector at LEP. Results are presented based on search topologies designed to select events with a single photon and missing transverse energy or events with a pair of acoplanar photons. In both search topologies, cross-section measurements are performed within the kinematic acceptance of the selection. These results are compared with the expectations from the Standard Model processes e+e- -> nu nu(bar) gamma (gamma) (single-photon) and e+e- -> \nu \nu(bar) gamma gamma (gamma) (acoplanar-photons). No evidence is observed for new physics contributions to these final states. Upper limits on sigma(e+e- -> XY)*Br(X -> Y gamma) and sigma(e+e- -> XX)*Br**2(X -> Y gamma) are derived for the case of stable and invisible Y. These limits apply to single and pair production of excited neutrinos (X = \nu^*, Y = \nu), to neutralino production (X = \chi^0_2, Y = \chi^0_1), and to supersymmetric models in which X = \chi^0_1 and Y = \tilde{G} is a light gravitino. For the latter scenario, the results of the acoplanar-photons search are used to provide model-dependent lower limits on the mass of the lightest neutralino.
Published: 1997

216. Measurement of triple gauge boson couplings from $W^+ W^-$ production at $\sqrt{s}$ = 172 GeV

Author: Ackerstaff, K., Alexander, G., Allison, John, Altekamp, N., Anderson, K.J., Anderson, S., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Ball, A.H., Barberio, E., Barlow, Roger J., Bartoldus, R., Batley, J.R., Baumann, S., Bechtluft, J., Beeston, C., Behnke, T., Bell, A.N., Bell, Kenneth Watson, Bella, G., Bentvelsen, S., Bethke, S., Biebel, O., Biguzzi, A., Bird, S.D., Blobel, V., Bloodworth, I.J., Bloomer, J.E., Bobinski, M., Bock, P., Bonacorsi, D., Boutemeur, M., Bouwens, B.T., Braibant, S., Brigliadori, L., Brown, Robert M., Burckhart, H.J., Burgard, C., Burgin, R., Capiluppi, P., Carnegie, R.K., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Chrisman, D., Clarke, P.E.L., Cohen, I., Conboy, J.E., Cooke, O.C., Cuffiani, M., Dado, S., Dallapiccola, C., Dallavalle, G.Marco, Davis, R., De Jong, S., del Pozo, L.A., Desch, K., Dienes, B., Dixit, M.S., do Couto e Silva, E., Doucet, M., Duchovni, E., Duckeck, G., Duerdoth, I.P., Eatough, D., Edwards, J.E.G., Estabrooks, P.G., Evans, H.G., Evans, M., Fabbri, F., Fanti, M., Faust, A.A., Fiedler, F., Fierro, M., Fischer, H.M., Fleck, I., Folman, R., Fong, D.G., Foucher, M., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gascon, J., Gascon-Shotkin, S.M., Geddes, N.I., Geich-Gimbel, C., Geralis, T., Giacomelli, G., Giacomelli, P., Giacomelli, R., Gibson, V., Gibson, W.R., Gingrich, D.M., Glenzinski, D., Goldberg, J., Goodrick, M.J., Gorn, W., Grandi, C., Gross, E., Grunhaus, J., Gruwe, M., Hajdu, C., Hanson, G.G., Hansroul, M., Hapke, M., Hargrove, C.K., Hart, P.A., Hartmann, C., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Herndon, M., Herten, G., Heuer, R.D., Hildreth, M.D., Hill, J.C., Hillier, S.J., Hobson, P.R., Homer, R.J., Honma, A.K., Horvath, D., Hossain, K.R., Howard, R., Huntemeyer, P., Hutchcroft, D.E., Igo-Kemenes, P., Imrie, D.C., Ingram, M.R., Ishii, K., Jawahery, A., Jeffreys, P.W., Jeremie, H., Jimack, M., Joly, A., Jones, C.R., Jones, G., Jones, M., Jost, U., Jovanovic, P., Junk, T.R., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Kayal, P.I., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kirk, J., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Koetke, D.S., Kokott, T.P., Kolrep, M., Komamiya, S., Kress, T., Krieger, P., von Krogh, J., Kyberd, P., Lafferty, G.D., Lahmann, R., Lai, W.P., Lanske, D., Lauber, J., Lautenschlager, S.R., Layter, J.G., Lazic, D., Lee, A.M., Lefebvre, E., Lellouch, D., Letts, J., Levinson, L., Lloyd, S.L., Loebinger, F.K., Long, G.D., Losty, M.J., Ludwig, J., Macchiolo, A., Macpherson, A., Mannelli, M., Marcellini, S., Markus, C., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., Mckigney, E.A., McMahon, T.J., McPherson, R.A., Meijers, F., Menke, S., Merritt, F.S., Mes, H., Meyer, J., Michelini, A., Mikenberg, G., Miller, D.J., Mincer, A., Mir, R., Mohr, W., Montanari, A., Mori, T., Morii, M., Muller, U., Mihara, S., Nagai, K., Nakamura, I., Neal, H.A., Nellen, B., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Oh, A., Oldershaw, N.J., Oreglia, M.J., Orito, S., Palinkas, J., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Pearce, M.J., Perez-Ochoa, R., Petzold, S., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poffenberger, P., Poli, B., Posthaus, A., Rees, D.L., Rigby, D., Robertson, S., Robins, S.A., Rodning, N., Roney, J.M., Rooke, A., Ros, E., Rossi, A.M., Routenburg, P., Rozen, Y., Runge, K., Runolfsson, O., Ruppel, U., Rust, D.R., Rylko, R., Sachs, K., Saeki, T., Sarkisian, E.K.G., Sbarra, C., Schaile, A.D., Schaile, O., Scharf, F., Scharff-Hansen, P., Schenk, P., Schieck, J., Schleper, P., Schmitt, B., Schmitt, S., Schoning, A., Schroder, Matthias, Schultz-Coulon, H.C., Schumacher, M., Schwick, C., Scott, W.G., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G.P., Sittler, A., Skillman, A., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Springer, Robert Wayne, Sproston, M., Stephens, K., Steuerer, J., Stockhausen, B., Stoll, K., Strom, David M., Szymanski, P., Tafirout, R., Talbot, S.D., Tanaka, S., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomson, M.A., von Torne, E., Towers, S., Trigger, I., Trocsanyi, Z., Tsur, E., Turcot, A.S., Turner-Watson, M.F., Utzat, P., Van Kooten, Rick J., Verzocchi, M., Vikas, P., Vokurka, E.H., Voss, H., Wackerle, F., Wagner, A., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wermes, N., White, J.S., Wilkens, B., Wilson, G.W., Wilson, J.A., Wolf, G., Wyatt, T.R., Yamashita, S., Yekutieli, G., Zacek, V., and Zer-Zion, D.
Subjects: Particle Physics - Experiment
Abstract: We present measurements of triple gauge boson coupling parameters using data recorded by the OPAL detector at LEP2 at a centre-of-mass energy of 172 GeV. A total of 120 W-pair candidates has been selected in the q q(bar) q q(bar), q q(bar) l nu(bar)_l, and l nu(bar)_l l(bar)' nu_l' decay channels, for an integrated luminosity of 10.4 pb^-1. We use these data to determine several different anomalous coupling parameters using the measured cross-section and the distributions of kinematic variables. We measure alpha_B-phi = 0.35 + 1.29 - 1.07 +/- 0.38, alpha_W-phi = 0.00 + 0.30 - 0.28 +/- 0.11, alpha_W = 0.18 + 0.49 - 0.47 +/- 0.23, Delta(g_1^z) = -0.03 + 0.40 -0.37 +/- 0.14, Delta(kappa_gamma^(HISZ)) = 0.03 + 0.55 - 0.51 +/- 0.20, and Delta(kappa) = 0.03 + 0.49 - 0.46 +/- 0.21. Combining the alpha_W-phi result with our previous result obtained from the 161 GeV data sample we measure alpha_W-phi = -0.08 + 0.28 - 0.25 +/- 0.10. All of these measurements are consistent with the Standard Model. We present measurements of triple gauge boson coupling parameters using data recorded by the OPAL detector at LEP2 at a centre-of-mass energy of 172 GeV. A total of 120 W-pair candidates has been selected in the q q(bar) q q(bar), q q(bar) l nu(bar)_l, and l nu(bar)_l l(bar)' nu_l' decay channels, for an integrated luminosity of 10.4 pb^-1. We use these data to determine several different anomalous coupling parameters using the measured cross-section and the distributions of kinematic variables. We measure alpha_B-phi = 0.35 + 1.29 - 1.07 +/- 0.38, alpha_W-phi = 0.00 + 0.30 - 0.28 +/- 0.11, alpha_W = 0.18 + 0.49 - 0.47 +/- 0.23, Delta(g_1^z) = -0.03 + 0.40 -0.37 +/- 0.14, Delta(kappa_gamma^(HISZ)) = 0.03 + 0.55 - 0.51 +/- 0.20, and Delta(kappa) = 0.03 + 0.49 - 0.46 +/- 0.21. Combining the alpha_W-phi result with our previous result obtained from the 161 GeV data sample we measure alpha_W-phi = -0.08 + 0.28 - 0.25 +/- 0.10. All of these measurements are consistent with the Standard Model.
Published: 1997

217. Search for anomalous production of dilepton events with missing transverse momentum in $e^{+} e^{-}$ collisions at $\sqrt{s}$ = 161 and 172 GeV

Author: Ackerstaff, K., Alexander, G., Allison, John, Altekamp, N., Anderson, K.J., Anderson, S., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Ball, A.H., Barberio, E., Barlow, Roger J., Bartoldus, R., Batley, J.R., Baumann, S., Bechtluft, J., Beeston, C., Behnke, T., Bell, A.N., Bell, Kenneth Watson, Bella, G., Bentvelsen, S., Bethke, S., Biebel, O., Biguzzi, A., Bird, S.D., Blobel, V., Bloodworth, I.J., Bloomer, J.E., Bobinski, M., Bock, P., Bonacorsi, D., Boutemeur, M., Bouwens, B.T., Braibant, S., Brigliadori, L., Brown, Robert M., Burckhart, H.J., Burgard, C., Burgin, R., Capiluppi, P., Carnegie, R.K., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Chrisman, D., Clarke, P.E.L., Cohen, I., Conboy, J.E., Cooke, O.C., Cuffiani, M., Dado, S., Dallapiccola, C., Dallavalle, G.Marco, Davis, R., De Jong, S., del Pozo, L.A., Desch, K., Dienes, B., Dixit, M.S., do Couto e Silva, E., Doucet, M., Duchovni, E., Duckeck, G., Duerdoth, I.P., Eatough, D., Edwards, J.E.G., Estabrooks, P.G., Evans, H.G., Evans, M., Fabbri, F., Fanti, M., Faust, A.A., Fiedler, F., Fierro, M., Fischer, H.M., Fleck, I., Folman, R., Fong, D.G., Foucher, M., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gascon, J., Gascon-Shotkin, S.M., Geddes, N.I., Geich-Gimbel, C., Geralis, T., Giacomelli, G., Giacomelli, P., Giacomelli, R., Gibson, V., Gibson, W.R., Gingrich, D.M., Glenzinski, D., Goldberg, J., Goodrick, M.J., Gorn, W., Grandi, C., Gross, E., Grunhaus, J., Gruwe, M., Hajdu, C., Hanson, G.G., Hansroul, M., Hapke, M., Hargrove, C.K., Hart, P.A., Hartmann, C., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Herndon, M., Herten, G., Heuer, R.D., Hildreth, M.D., Hill, J.C., Hillier, S.J., Hobson, P.R., Homer, R.J., Honma, A.K., Horvath, D., Hossain, K.R., Howard, R., Huntemeyer, P., Hutchcroft, D.E., Igo-Kemenes, P., Imrie, D.C., Ingram, M.R., Ishii, K., Jawahery, A., Jeffreys, P.W., Jeremie, H., Jimack, M., Joly, A., Jones, C.R., Jones, G., Jones, M., Jost, U., Jovanovic, P., Junk, T.R., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Kayal, P.I., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kirk, J., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Koetke, D.S., Kokott, T.P., Kolrep, M., Komamiya, S., Kress, T., Krieger, P., von Krogh, J., Kyberd, P., Lafferty, G.D., Lahmann, R., Lai, W.P., Lanske, D., Lauber, J., Lautenschlager, S.R., Layter, J.G., Lazic, D., Lee, A.M., Lefebvre, E., Lellouch, D., Letts, J., Levinson, L., Lloyd, S.L., Loebinger, F.K., Long, G.D., Losty, M.J., Ludwig, J., Macchiolo, A., Macpherson, A., Mannelli, M., Marcellini, S., Markus, C., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., Mckigney, E.A., McMahon, T.J., McPherson, R.A., Meijers, F., Menke, S., Merritt, F.S., Mes, H., Meyer, J., Michelini, A., Mikenberg, G., Miller, D.J., Mincer, A., Mir, R., Mohr, W., Montanari, A., Mori, T., Morii, M., Muller, U., Mihara, S., Nagai, K., Nakamura, I., Neal, H.A., Nellen, B., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Oh, A., Oldershaw, N.J., Oreglia, M.J., Orito, S., Palinkas, J., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Pearce, M.J., Perez-Ochoa, R., Petzold, S., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poffenberger, P., Poli, B., Posthaus, A., Rees, D.L., Rigby, D., Robertson, S., Robins, S.A., Rodning, N., Roney, J.M., Rooke, A., Ros, E., Rossi, A.M., Routenburg, P., Rozen, Y., Runge, K., Runolfsson, O., Ruppel, U., Rust, D.R., Rylko, R., Sachs, K., Saeki, T., Sarkisian, E.K.G., Sbarra, C., Schaile, A.D., Schaile, O., Scharf, F., Scharff-Hansen, P., Schenk, P., Schieck, J., Schleper, P., Schmitt, B., Schmitt, S., Schoning, A., Schroder, Matthias, Schultz-Coulon, H.C., Schumacher, M., Schwick, C., Scott, W.G., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G.P., Sittler, A., Skillman, A., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Springer, Robert Wayne, Sproston, M., Stephens, K., Steuerer, J., Stockhausen, B., Stoll, K., Strom, David M., Szymanski, P., Tafirout, R., Talbot, S.D., Tanaka, S., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomson, M.A., von Torne, E., Towers, S., Trigger, I., Trocsanyi, Z., Tsur, E., Turcot, A.S., Turner-Watson, M.F., Utzat, P., Van Kooten, Rick J., Verzocchi, M., Vikas, P., Vokurka, E.H., Voss, H., Wackerle, F., Wagner, A., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wermes, N., White, J.S., Wilkens, B., Wilson, G.W., Wilson, J.A., Wolf, G., Wyatt, T.R., Yamashita, S., Yekutieli, G., Zacek, V., and Zer-Zion, D.
Subjects: High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: Events containing a pair of charged leptons and significant missing transverse momentum are selected from a data sample corresponding to a total integrated luminosity of 20.6 pb^-1 at centre-of-mass energies of 161 GeV and 172 GeV. The observed number of events, four at 161 GeV and nine at 172 GeV, is consistent with the number expected from Standard Model processes, predominantly arising from W+W- production with each W decaying leptonically. This topology is also an experimental signature for the pair production of new particles that decay to a charged lepton accompanied by one or more invisible particles. Further event selection criteria are described that optimise the sensitivity to particular new physics channels. No evidence for new phenomena is observed and limits on the production of scalar charged lepton pairs and other new particles are presented. Events containing a pair of charged leptons and significant missing transverse momentum are selected from a data sample corresponding to a total integrated luminosity of 20.6 pb^-1 at centre-of-mass energies of 161 GeV and 172 GeV. The observed number of events, four at 161 GeV and nine at 172 GeV, is consistent with the number expected from Standard Model processes, predominantly arising from W+W- production with each W decaying leptonically. This topology is also an experimental signature for the pair production of new particles that decay to a charged lepton accompanied by one or more invisible particles. Further event selection criteria are described that optimise the sensitivity to particular new physics channels. No evidence for new phenomena is observed and limits on the production of scalar charged lepton pairs and other new particles are presented.
Published: 1997

218. Multi-photon final states in $e^+ e^-$ collisions at $\sqrt{s}$ = 130-172 GeV

Author: Ackerstaff, K., Alexander, G., Allison, John, Altekamp, N., Anderson, K.J., Anderson, S., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Ball, A.H., Barberio, E., Barlow, Roger J., Bartoldus, R., Batley, J.R., Baumann, S., Bechtluft, J., Beeston, C., Behnke, T., Bell, A.N., Bell, Kenneth Watson, Bella, G., Bentvelsen, S., Bethke, S., Biebel, O., Biguzzi, A., Bird, S.D., Blobel, V., Bloodworth, I.J., Bloomer, J.E., Bobinski, M., Bock, P., Bonacorsi, D., Boutemeur, M., Bouwens, B.T., Braibant, S., Brigliadori, L., Brown, Robert M., Burckhart, H.J., Burgard, C., Burgin, R., Capiluppi, P., Carnegie, R.K., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Chrisman, D., Clarke, P.E.L., Cohen, I., Conboy, J.E., Cooke, O.C., Cuffiani, M., Dado, S., Dallapiccola, C., Dallavalle, G.Marco, Davies, R., De Jong, S., del Pozo, L.A., Desch, K., Dienes, B., Dixit, M.S., do Couto e Silva, E., Doucet, M., Duchovni, E., Duckeck, G., Duerdoth, I.P., Eatough, D., Edwards, J.E.G., Estabrooks, P.G., Evans, H.G., Evans, M., Fabbri, F., Fanti, M., Faust, A.A., Fiedler, F., Fierro, M., Fischer, H.M., Fleck, I., Folman, R., Fong, D.G., Foucher, M., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gascon, J., Gascon-Shotkin, S.M., Geddes, N.I., Geich-Gimbel, C., Geralis, T., Giacomelli, G., Giacomelli, P., Giacomelli, R., Gibson, V., Gibson, W.R., Gingrich, D.M., Glenzinski, D., Goldberg, J., Goodrick, M.J., Gorn, W., Grandi, C., Gross, E., Grunhaus, J., Gruwe, M., Hajdu, C., Hanson, G.G., Hansroul, M., Hapke, M., Hargrove, C.K., Hart, P.A., Hartmann, C., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Herndon, M., Herten, G., Heuer, R.D., Hildreth, M.D., Hill, J.C., Hillier, S.J., Hobson, P.R., Homer, R.J., Honma, A.K., Horvath, D., Hossain, K.R., Howard, R., Huntemeyer, P., Hutchcroft, D.E., Igo-Kemenes, P., Imrie, D.C., Ingram, M.R., Ishii, K., Jawahery, A., Jeffreys, P.W., Jeremie, H., Jimack, M., Joly, A., Jones, C.R., Jones, G., Jones, M., Jost, U., Jovanovic, P., Junk, T.R., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Kayal, P.I., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kirk, J., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Koetke, D.S., Kokott, T.P., Kolrep, M., Komamiya, S., Kress, T., Krieger, P., von Krogh, J., Kyberd, P., Lafferty, G.D., Lahmann, R., Lai, W.P., Lanske, D., Lauber, J., Lautenschlager, S.R., Layter, J.G., Lazic, D., Lee, A.M., Lefebvre, E., Lellouch, D., Letts, J., Levinson, L., Lloyd, S.L., Loebinger, F.K., Long, G.D., Losty, M.J., Ludwig, J., Macchiolo, A., Macpherson, A., Mannelli, M., Marcellini, S., Markus, C., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., Mckigney, E.A., McMahon, T.J., McPherson, R.A., Meijers, F., Menke, S., Merritt, F.S., Mes, H., Meyer, J., Michelini, A., Mikenberg, G., Miller, D.J., Mincer, A., Mir, R., Mohr, W., Montanari, A., Mori, T., Morii, M., Muller, U., Mihara, S., Nagai, K., Nakamura, I., Neal, H.A., Nellen, B., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Oh, A., Oldershaw, N.J., Oreglia, M.J., Orito, S., Palinkas, J., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Pearce, M.J., Perez-Ochoa, R., Petzold, S., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poffenberger, P., Poli, B., Posthaus, A., Rees, D.L., Rigby, D., Robertson, S., Robins, S.A., Rodning, N., Roney, J.M., Rooke, A., Ros, E., Rossi, A.M., Routenburg, P., Rozen, Y., Runge, K., Runolfsson, O., Ruppel, U., Rust, D.R., Rylko, R., Sachs, K., Saeki, T., Sarkisian, E.K.G., Sbarra, C., Schaile, A.D., Schaile, O., Scharf, F., Scharff-Hansen, P., Schenk, P., Schieck, J., Schleper, P., Schmitt, B., Schmitt, S., Schoning, A., Schroder, Matthias, Schultz-Coulon, H.C., Schumacher, M., Schwick, C., Scott, W.G., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G.P., Sittler, A., Skillman, A., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Springer, Robert Wayne, Sproston, M., Stephens, K., Steuerer, J., Stockhausen, B., Stoll, K., Strom, David M., Szymanski, P., Tafirout, R., Talbot, S.D., Tanaka, S., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomson, M.A., von Torne, E., Towers, S., Trigger, I., Trocsanyi, Z., Tsur, E., Turcot, A.S., Turner-Watson, M.F., Utzat, P., Van Kooten, Rick J., Verzocchi, M., Vikas, P., Vokurka, E.H., Voss, H., Wackerle, F., Wagner, A., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wermes, N., White, J.S., Wilkens, B., Wilson, G.W., Wilson, J.A., Wolf, G., Wyatt, T.R., Yamashita, S., Yekutieli, G., Zacek, V., and Zer-Zion, D.
Subjects: Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: The process e^+e^- -> gamma gamma (gamma) is studied using data recorded with the OPAL detector at LEP. The data sample corresponds to a total integrated luminosity of 25.38 pb^{-1} taken at centre-of-mass energies of 130-172 GeV. The measured cross-sections agree well with the expectation from QED. In a combined fit using data from all centre-of-mass energies, the angular distribution is used to obtain improved limits on the cut-off parameters: Lambda_+ > 195 GeV and Lambda_- > 210 GeV (95% CL). In addition, limits on non-standard e^+e^-gamma couplings and contact interactions, as well as a 95% CL mass limit for an excited electron, M_{e^*} > 194 GeV for an e^+e^-gamma coupling kappa = 1, are determined. The process e^+e^- -> gamma gamma (gamma) is studied using data recorded with the OPAL detector at LEP. The data sample corresponds to a total integrated luminosity of 25.38 pb^{-1} taken at centre-of-mass energies of 130-172 GeV. The measured cross-sections agree well with the expectation from QED. In a combined fit using data from all centre-of-mass energies, the angular distribution is used to obtain improved limits on the cut-off parameters: Lambda_+ > 195 GeV and Lambda_- > 210 GeV (95% CL). In addition, limits on non-standard e^+e^-gamma couplings and contact interactions, as well as a 95% CL mass limit for an excited electron, M_{e^*} > 194 GeV for an e^+e^-gamma coupling kappa = 1, are determined.
Published: 1997

219. Measurement of the quark to photon fragmentation function through the inclusive production of prompt photons in hadronic Z^0 decays

Author: Ackerstaff, K., Alexander, G., Allison, John, Altekamp, N., Anderson, K.J., Anderson, S., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Ball, A.H., Barberio, E., Barillari, T., Barlow, Roger J., Bartoldus, R., Batley, J.R., Baumann, S., Bechtluft, J., Beeston, C., Behnke, T., Bell, A.N., Bell, Kenneth Watson, Bella, G., Bentvelsen, S., Bethke, S., Biebel, O., Biguzzi, A., Bird, S.D., Blobel, V., Bloodworth, I.J., Bloomer, J.E., Bobinski, M., Bock, P., Bonacorsi, D., Boutemeur, M., Bouwens, B.T., Braibant, S., Brigliadori, L., Brown, Robert M., Burckhart, H.J., Burgard, C., Burgin, R., Capiluppi, P., Carnegie, R.K., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Chrisman, D., Clarke, P.E.L., Cohen, I., Conboy, J.E., Cooke, O.C., Cuffiani, M., Dado, S., Dallapiccola, C., Dallavalle, G.Marco, Davies, R., De Jong, S., del Pozo, L.A., Desch, K., Dienes, B., Dixit, M.S., do Couto e Silva, E., Doucet, M., Duchovni, E., Duckeck, G., Duerdoth, I.P., Eatough, D., Edwards, J.E.G., Estabrooks, P.G., Evans, H.G., Evans, M., Fabbri, F., Fanti, M., Faust, A.A., Fiedler, F., Fierro, M., Fischer, H.M., Fleck, I., Folman, R., Fong, D.G., Foucher, M., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gascon, J., Gascon-Shotkin, S.M., Geddes, N.I., Geich-Gimbel, C., Geralis, T., Giacomelli, G., Giacomelli, P., Giacomelli, R., Gibson, V., Gibson, W.R., Gingrich, D.M., Glenzinski, D., Goldberg, J., Goodrick, M.J., Gorn, W., Grandi, C., Gross, E., Grunhaus, J., Gruwe, M., Hajdu, C., Hanson, G.G., Hansroul, M., Hapke, M., Hargrove, C.K., Hart, P.A., Hartmann, C., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Herndon, M., Herten, G., Heuer, R.D., Hildreth, M.D., Hill, J.C., Hillier, S.J., Hobson, P.R., Homer, R.J., Honma, A.K., Horvath, D., Hossain, K.R., Howard, R., Huntemeyer, P., Hutchcroft, D.E., Igo-Kemenes, P., Imrie, D.C., Ingram, M.R., Ishii, K., Jawahery, A., Jeffreys, P.W., Jeremie, H., Jimack, M., Joly, A., Jones, C.R., Jones, G., Jones, M., Jost, U., Jovanovic, P., Junk, T.R., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Kayal, P.I., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kirk, J., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Koetke, D.S., Kokott, T.P., Kolrep, M., Komamiya, S., Kress, T., Krieger, P., von Krogh, J., Kyberd, P., Lafferty, G.D., Lahmann, R., Lai, W.P., Lanske, D., Lauber, J., Lautenschlager, S.R., Layter, J.G., Lazic, D., Lee, A.M., Lefebvre, E., Lellouch, D., Letts, J., Levinson, L., Lloyd, S.L., Loebinger, F.K., Long, G.D., Losty, M.J., Ludwig, J., Macchiolo, A., Macpherson, A., Mannelli, M., Marcellini, S., Markus, C., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., Mckigney, E.A., McMahon, T.J., McPherson, R.A., Meijers, F., Menke, S., Merritt, F.S., Mes, H., Meyer, J., Michelini, A., Mikenberg, G., Miller, D.J., Mincer, A., Mir, R., Mohr, W., Montanari, A., Mori, T., Morii, M., Muller, U., Mihara, S., Nagai, K., Nakamura, I., Neal, H.A., Nellen, B., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Oh, A., Oldershaw, N.J., Oreglia, M.J., Orito, S., Palinkas, J., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Pearce, M.J., Perez-Ochoa, R., Petzold, S., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poffenberger, P., Poli, B., Posthaus, A., Rees, D.L., Rigby, D., Robertson, S., Robins, S.A., Rodning, N., Roney, J.M., Rooke, A., Ros, E., Rossi, A.M., Routenburg, P., Rozen, Y., Runge, K., Runolfsson, O., Ruppel, U., Rust, D.R., Rylko, R., Sachs, K., Saeki, T., Sarkisian, E.K.G., Sbarra, C., Schaile, A.D., Schaile, O., Scharf, F., Scharff-Hansen, P., Schenk, P., Schieck, J., Schleper, P., Schmitt, B., Schmitt, S., Schoning, A., Schroder, Matthias, Schultz-Coulon, H.C., Schumacher, M., Schwick, C., Scott, W.G., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G.P., Sittler, A., Skillman, A., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Springer, Robert Wayne, Sproston, M., Stephens, K., Steuerer, J., Stockhausen, B., Stoll, K., Strom, David M., Szymanski, P., Tafirout, R., Talbot, S.D., Tanaka, S., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomson, M.A., von Torne, E., Towers, S., Trigger, I., Trocsanyi, Z., Tsur, E., Turcot, A.S., Turner-Watson, M.F., Utzat, P., Van Kooten, Rick J., Verzocchi, M., Vikas, P., Vokurka, E.H., Voss, H., Wackerle, F., Wagner, A., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wermes, N., White, J.S., Wilkens, B., Wilson, G.W., Wilson, J.A., Wolf, G., Wyatt, T.R., Yamashita, S., Yekutieli, G., Zacek, V., and Zer-Zion, D.
Subjects: Quark, Particle physics, Photon, Physics and Astronomy (miscellaneous), Astrophysics::High Energy Astrophysical Phenomena, Hadron, FOS: Physical sciences, Physics::Optics, ELECTROWEAK COUPLINGS, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, EVENTS, High Energy Physics - Experiment (hep-ex), MONTE-CARLO, SEARCH, 0103 physical sciences, Energy spectrum, Fragmentation function, FINAL-STATE PHOTONS, 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), Quantum chromodynamics, Physics, 010308 nuclear & particles physics, Detector, scattering, High Energy Physics::Phenomenology, LEP, Z0 DECAYS, High Energy Physics::Experiment, EMISSION, E+ E ANNIHILATION, Particle Physics - Experiment, Production rate
Abstract: The inclusive production of prompt photons with energy above 10 GeV is measured using the OPAL detector in hadronic Z^0 decays at LEP. In contrast to previous measurements, the prompt photons were not required to be isolated. The production rate and energy spectrum are found to be in agreement with QCD predictions for the quark-to-photon fragmentation function., 23 pages, LaTeX, 6 eps figures included, submitted to Zeit. Phys. C
Published: 1997

220. A measurement of the $B^{0}_{s}$ lifetime using reconstructed $D^{-}_{s}$ mesons

Author: Ackerstaff, K., Alexander, G., Allison, John, Altekamp, N., Anderson, K.J., Anderson, S., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Ball, A.H., Barberio, E., Barillari, T., Barlow, Roger J., Bartoldus, R., Batley, J.R., Baumann, S., Bechtluft, J., Beeston, C., Behnke, T., Bell, A.N., Bell, Kenneth Watson, Bella, G., Bentvelsen, S., Bethke, S., Biebel, O., Biguzzi, A., Bird, S.D., Blobel, V., Bloodworth, I.J., Bloomer, J.E., Bobinski, M., Bock, P., Bonacorsi, D., Boutemeur, M., Bouwens, B.T., Braibant, S., Brigliadori, L., Brown, Robert M., Burckhart, H.J., Burgard, C., Burgin, R., Capiluppi, P., Carnegie, R.K., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Chrisman, D., Clarke, P.E.L., Cohen, I., Conboy, J.E., Cooke, O.C., Cuffiani, M., Dado, S., Dallapiccola, C., Dallavalle, G.Marco, Davies, R., De Jong, S., del Pozo, L.A., Desch, K., Dienes, B., Dixit, M.S., do Couto e Silva, E., Doucet, M., Duchovni, E., Duckeck, G., Duerdoth, I.P., Eatough, D., Edwards, J.E.G., Estabrooks, P.G., Evans, H.G., Evans, M., Fabbri, F., Fanti, M., Faust, A.A., Fiedler, F., Fierro, M., Fischer, H.M., Fleck, I., Folman, R., Fong, D.G., Foucher, M., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gascon, J., Gascon-Shotkin, S.M., Geddes, N.I., Geich-Gimbel, C., Geralis, T., Giacomelli, G., Giacomelli, P., Giacomelli, R., Gibson, V., Gibson, W.R., Gingrich, D.M., Glenzinski, D., Goldberg, J., Goodrick, M.J., Gorn, W., Grandi, C., Gross, E., Grunhaus, J., Gruwe, M., Hajdu, C., Hanson, G.G., Hansroul, M., Hapke, M., Hargrove, C.K., Hart, P.A., Hartmann, C., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Herndon, M., Herten, G., Heuer, R.D., Hildreth, M.D., Hill, J.C., Hillier, S.J., Hobson, P.R., Homer, R.J., Honma, A.K., Horvath, D., Hossain, K.R., Howard, R., Huntemeyer, P., Hutchcroft, D.E., Igo-Kemenes, P., Imrie, D.C., Ingram, M.R., Ishii, K., Jawahery, A., Jeffreys, P.W., Jeremie, H., Jimack, M., Joly, A., Jones, C.R., Jones, G., Jones, M., Jost, U., Jovanovic, P., Junk, T.R., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Kayal, P.I., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kirk, J., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Koetke, D.S., Kokott, T.P., Kolrep, M., Komamiya, S., Kress, T., Krieger, P., von Krogh, J., Kyberd, P., Lafferty, G.D., Lahmann, R., Lai, W.P., Lanske, D., Lauber, J., Lautenschlager, S.R., Layter, J.G., Lazic, D., Lee, A.M., Lefebvre, E., Lellouch, D., Letts, J., Levinson, L., Lloyd, S.L., Loebinger, F.K., Long, G.D., Losty, M.J., Ludwig, J., Macchiolo, A., Macpherson, A., Mannelli, M., Marcellini, S., Markus, C., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., Mckigney, E.A., McMahon, T.J., McPherson, R.A., Meijers, F., Menke, S., Merritt, F.S., Mes, H., Meyer, J., Michelini, A., Mikenberg, G., Miller, D.J., Mincer, A., Mir, R., Mohr, W., Montanari, A., Mori, T., Morii, M., Muller, U., Mihara, S., Nagai, K., Nakamura, I., Neal, H.A., Nellen, B., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Oh, A., Oldershaw, N.J., Oreglia, M.J., Orito, S., Palinkas, J., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Pearce, M.J., Perez-Ochoa, R., Petzold, S., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poffenberger, P., Poli, B., Posthaus, A., Rees, D.L., Rigby, D., Robertson, S., Robins, S.A., Rodning, N., Roney, J.M., Rooke, A., Ros, E., Rossi, A.M., Routenburg, P., Rozen, Y., Runge, K., Runolfsson, O., Ruppel, U., Rust, D.R., Rylko, R., Sachs, K., Saeki, T., Sarkisian, E.K.G., Sbarra, C., Schaile, A.D., Schaile, O., Scharf, F., Scharff-Hansen, P., Schenk, P., Schieck, J., Schleper, P., Schmitt, B., Schmitt, S., Schoning, A., Schroder, Matthias, Schultz-Coulon, H.C., Schumacher, M., Schwick, C., Scott, W.G., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G.P., Sittler, A., Skillman, A., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Springer, Robert Wayne, Sproston, M., Stephens, K., Steuerer, J., Stockhausen, B., Stoll, K., Strom, David M., Szymanski, P., Tafirout, R., Talbot, S.D., Tanaka, S., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomson, M.A., von Torne, E., Towers, S., Trigger, I., Trocsanyi, Z., Tsur, E., Turcot, A.S., Turner-Watson, M.F., Utzat, P., Van Kooten, Rick J., Verzocchi, M., Vikas, P., Vokurka, E.H., Voss, H., Wackerle, F., Wagner, A., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wermes, N., White, J.S., Wilkens, B., Wilson, G.W., Wilson, J.A., Wolf, G., Wyatt, T.R., Yamashita, S., Yekutieli, G., Zacek, V., and Zer-Zion, D.
Subjects: High Energy Physics::Lattice, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: We report a measurement of the B^0_s meson lifetime from B_s^0 -> D^-_s X decays, where D_s^- mesons are reconstructed in the D_s^- -> phi pi^- and D_s^- -> K^{*0} K^- decay channels. From approximately 3.7 million hadronic Z^0 decays recorded by the OPAL detector at LEP a sample is selected containing 911 +/- 83 candidates, of which 519 +/- 136 are estimated to be from B_s^0 meson decays. Fitting the distribution of the distance from the beam spot to the decay vertex of the D_s^- candidates with an unbinned likelihood function we measure tau(B_s^0) = 1.72 + 0.20 - 0.19 + 0.18 - 0.17 ps, where the errors are statistical and systematic, respectively.
Published: 1997

221. Measurement of $f(c \to D^{+} X)$, $f(b \to D^{+} X)$ and $\Gamma_{c \overline{c}}/\Gamma_{had}$ using $D^{*\pm}$ mesons

Author: Ackerstaff, K., Alexander, G., Allison, John, Altekamp, N., Anderson, K.J., Anderson, S., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Ball, A.H., Barberio, E., Barillari, T., Barlow, Roger J., Bartoldus, R., Batley, J.R., Baumann, S., Bechtluft, J., Beeston, C., Behnke, T., Bell, A.N., Bell, Kenneth Watson, Bella, G., Bentvelsen, S., Bethke, S., Biebel, O., Biguzzi, A., Bird, S.D., Blobel, V., Bloodworth, I.J., Bloomer, J.E., Bobinski, M., Bock, P., Bonacorsi, D., Boutemeur, M., Bouwens, B.T., Braibant, S., Brigliadori, L., Brown, Robert M., Burckhart, H.J., Burgard, C., Burgin, R., Capiluppi, P., Carnegie, R.K., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Chrisman, D., Clarke, P.E.L., Cohen, I., Conboy, J.E., Cooke, O.C., Cuffiani, M., Dado, S., Dallapiccola, C., Dallavalle, G.Marco, Davies, R., De Jong, S., del Pozo, L.A., Desch, K., Dienes, B., Dixit, M.S., do Couto e Silva, E., Doucet, M., Duchovni, E., Duckeck, G., Duerdoth, I.P., Eatough, D., Edwards, J.E.G., Estabrooks, P.G., Evans, H.G., Evans, M., Fabbri, F., Fanti, M., Faust, A.A., Fiedler, F., Fierro, M., Fischer, H.M., Fleck, I., Folman, R., Fong, D.G., Foucher, M., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gascon, J., Gascon-Shotkin, S.M., Geddes, N.I., Geich-Gimbel, C., Geralis, T., Giacomelli, G., Giacomelli, P., Giacomelli, R., Gibson, V., Gibson, W.R., Gingrich, D.M., Glenzinski, D., Goldberg, J., Goodrick, M.J., Gorn, W., Grandi, C., Gross, E., Grunhaus, J., Gruwe, M., Hajdu, C., Hanson, G.G., Hansroul, M., Hapke, M., Hargrove, C.K., Hart, P.A., Hartmann, C., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Herndon, M., Herten, G., Heuer, R.D., Hildreth, M.D., Hill, J.C., Hillier, S.J., Hobson, P.R., Homer, R.J., Honma, A.K., Horvath, D., Hossain, K.R., Howard, R., Huntemeyer, P., Hutchcroft, D.E., Igo-Kemenes, P., Imrie, D.C., Ingram, M.R., Ishii, K., Jawahery, A., Jeffreys, P.W., Jeremie, H., Jimack, M., Joly, A., Jones, C.R., Jones, G., Jones, M., Jost, U., Jovanovic, P., Junk, T.R., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Kayal, P.I., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kirk, J., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Koetke, D.S., Kokott, T.P., Kolrep, M., Komamiya, S., Kress, T., Krieger, P., von Krogh, J., Kyberd, P., Lafferty, G.D., Lahmann, R., Lai, W.P., Lanske, D., Lauber, J., Lautenschlager, S.R., Layter, J.G., Lazic, D., Lee, A.M., Lefebvre, E., Lellouch, D., Letts, J., Levinson, L., Lloyd, S.L., Loebinger, F.K., Long, G.D., Losty, M.J., Ludwig, J., Macchiolo, A., Macpherson, A., Mannelli, M., Marcellini, S., Markus, C., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., Mckigney, E.A., McMahon, T.J., McPherson, R.A., Meijers, F., Menke, S., Merritt, F.S., Mes, H., Meyer, J., Michelini, A., Mikenberg, G., Miller, D.J., Mincer, A., Mir, R., Mohr, W., Montanari, A., Mori, T., Morii, M., Muller, U., Mihara, S., Nagai, K., Nakamura, I., Neal, H.A., Nellen, B., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Oh, A., Oldershaw, N.J., Oreglia, M.J., Orito, S., Palinkas, J., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Pearce, M.J., Perez-Ochoa, R., Petzold, S., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poffenberger, P., Poli, B., Posthaus, A., Rees, D.L., Rigby, D., Robertson, S., Robins, S.A., Rodning, N., Roney, J.M., Rooke, A., Ros, E., Rossi, A.M., Routenburg, P., Rozen, Y., Runge, K., Runolfsson, O., Ruppel, U., Rust, D.R., Rylko, R., Sachs, K., Saeki, T., Sarkisian, E.K.G., Sbarra, C., Schaile, A.D., Schaile, O., Scharf, F., Scharff-Hansen, P., Schenk, P., Schieck, J., Schleper, P., Schmitt, B., Schmitt, S., Schoning, A., Schroder, Matthias, Schultz-Coulon, H.C., Schumacher, M., Schwick, C., Scott, W.G., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G.P., Sittler, A., Skillman, A., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Springer, Robert Wayne, Sproston, M., Stephens, K., Steuerer, J., Stockhausen, B., Stoll, K., Strom, David M., Szymanski, P., Tafirout, R., Talbot, S.D., Tanaka, S., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomson, M.A., von Torne, E., Towers, S., Trigger, I., Trocsanyi, Z., Tsur, E., Turcot, A.S., Turner-Watson, M.F., Utzat, P., Van Kooten, Rick J., Verzocchi, M., Vikas, P., Vokurka, E.H., Voss, H., Wackerle, F., Wagner, A., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wermes, N., White, J.S., Wilkens, B., Wilson, G.W., Wilson, J.A., Wolf, G., Wyatt, T.R., Yamashita, S., Yekutieli, G., Zacek, V., and Zer-Zion, D.
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment
Abstract: The production rates of D^*+/- mesons in charm and bottom events at centre-of-mass energies of about 91 GeV and the partial width of primary cc(bar) pairs in hadronic Z^0 decays have been measured at LEP using almost 4.4 million hadronic Z^0 decays collected with the OPAL detector between 1990 and 1995. Using a combination of several charm quark tagging methods based on fully and partially reconstructed D^*+/- mesons, and a bottom tag based on identified muons and electrons, the hadronisation fractions of charm and bottom quarks into D^*+/- mesons have been found to be: f(b -> D^*+ X) = 0.173 +/- 0.016 +/- 0.012 and f(c -> D^*+ X) = 0.222 +/- 0.014 +/- 0.014 The fraction of cc(bar) events in hadronic Z^0 decays, Gamma_cc(bar)/Gamma_had = Gamma(Z^0 -> cc(bar))/Gamma(Z^0 -> hadrons), is determined to be Gamma_cc(bar)/Gamma_had = 0.180 +/- 0.011 +/- 0.012 +/- 0.006 In all cases the first error is statistical, and the second one systematic. The last error quoted for Gamma_cc(bar)/Gamma_had is due to external branching ratios. The production rates of D^*+/- mesons in charm and bottom events at centre-of-mass energies of about 91 GeV and the partial width of primary cc(bar) pairs in hadronic Z^0 decays have been measured at LEP using almost 4.4 million hadronic Z^0 decays collected with the OPAL detector between 1990 and 1995. Using a combination of several charm quark tagging methods based on fully and partially reconstructed D^*+/- mesons, and a bottom tag based on identified muons and electrons, the hadronisation fractions of charm and bottom quarks into D^*+/- mesons have been found to be: f(b -> D^*+ X) = 0.173 +/- 0.016 +/- 0.012 and f(c -> D^*+ X) = 0.222 +/- 0.014 +/- 0.014 The fraction of cc(bar) events in hadronic Z^0 decays, Gamma_cc(bar)/Gamma_had = Gamma(Z^0 -> cc(bar))/Gamma(Z^0 -> hadrons), is determined to be Gamma_cc(bar)/Gamma_had = 0.180 +/- 0.011 +/- 0.012 +/- 0.006 In all cases the first error is statistical, and the second one systematic. The last error quoted for Gamma_cc(bar)/Gamma_had is due to external branching ratios.
Published: 1997

222. Search for chargino and neutralino production at $\sqrt{s}$ = 170 and 172 GeV at LEP

Author: Ackerstaff, K., Alexander, G., Allison, John, Altekamp, N., Anderson, K.J., Anderson, S., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Ball, A.H., Barberio, E., Barlow, Roger J., Bartoldus, R., Batley, J.R., Baumann, S., Bechtluft, J., Beeston, C., Behnke, T., Bell, A.N., Bell, Kenneth Watson, Bella, G., Bentvelsen, S., Bethke, S., Biebel, O., Biguzzi, A., Bird, S.D., Blobel, V., Bloodworth, I.J., Bloomer, J.E., Bobinski, M., Bock, P., Bonacorsi, D., Boutemeur, M., Bouwens, B.T., Braibant, S., Brigliadori, L., Brown, Robert M., Burckhart, H.J., Burgard, C., Burgin, R., Capiluppi, P., Carnegie, R.K., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Chrisman, D., Clarke, P.E.L., Cohen, I., Conboy, J.E., Cooke, O.C., Cuffiani, M., Dado, S., Dallapiccola, C., Dallavalle, G.Marco, Davies, R., De Jong, S., del Pozo, L.A., Desch, K., Dienes, B., Dixit, M.S., do Couto e Silva, E., Doucet, M., Duchovni, E., Duckeck, G., Duerdoth, I.P., Eatough, D., Edwards, J.E.G., Estabrooks, P.G., Evans, H.G., Evans, M., Fabbri, F., Fanti, M., Faust, A.A., Fiedler, F., Fierro, M., Fischer, H.M., Fleck, I., Folman, R., Fong, D.G., Foucher, M., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gascon, J., Gascon-Shotkin, S.M., Geddes, N.I., Geich-Gimbel, C., Geralis, T., Giacomelli, G., Giacomelli, P., Giacomelli, R., Gibson, V., Gibson, W.R., Gingrich, D.M., Glenzinski, D., Goldberg, J., Goodrick, M.J., Gorn, W., Grandi, C., Gross, E., Grunhaus, J., Gruwe, M., Hajdu, C., Hanson, G.G., Hansroul, M., Hapke, M., Hargrove, C.K., Hart, P.A., Hartmann, C., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Herndon, M., Herten, G., Heuer, R.D., Hildreth, M.D., Hill, J.C., Hillier, S.J., Hobson, P.R., Homer, R.J., Honma, A.K., Horvath, D., Hossain, K.R., Howard, R., Huntemeyer, P., Hutchcroft, D.E., Igo-Kemenes, P., Imrie, D.C., Ingram, M.R., Ishii, K., Jawahery, A., Jeffreys, P.W., Jeremie, H., Jimack, M., Joly, A., Jones, C.R., Jones, G., Jones, M., Jost, U., Jovanovic, P., Junk, T.R., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Kayal, P.I., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kirk, J., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Koetke, D.S., Kokott, T.P., Kolrep, M., Komamiya, S., Kress, T., Krieger, P., von Krogh, J., Kyberd, P., Lafferty, G.D., Lahmann, R., Lai, W.P., Lanske, D., Lauber, J., Lautenschlager, S.R., Layter, J.G., Lazic, D., Lee, A.M., Lefebvre, E., Lellouch, D., Letts, J., Levinson, L., Lloyd, S.L., Loebinger, F.K., Long, G.D., Losty, M.J., Ludwig, J., Macchiolo, A., Macpherson, A., Mannelli, M., Marcellini, S., Markus, C., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., Mckigney, E.A., McMahon, T.J., McPherson, R.A., Meijers, F., Menke, S., Merritt, F.S., Mes, H., Meyer, J., Michelini, A., Mikenberg, G., Miller, D.J., Mincer, A., Mir, R., Mohr, W., Montanari, A., Mori, T., Morii, M., Muller, U., Mihara, S., Nagai, K., Nakamura, I., Neal, H.A., Nellen, B., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Oh, A., Oldershaw, N.J., Oreglia, M.J., Orito, S., Palinkas, J., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Pearce, M.J., Perez-Ochoa, R., Petzold, S., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poffenberger, P., Poli, B., Posthaus, A., Rees, D.L., Rigby, D., Robertson, S., Robins, S.A., Rodning, N., Roney, J.M., Rooke, A., Ros, E., Rossi, A.M., Routenburg, P., Rozen, Y., Runge, K., Runolfsson, O., Ruppel, U., Rust, D.R., Rylko, R., Sachs, K., Saeki, T., Sarkisian, E.K.G., Sbarra, C., Schaile, A.D., Schaile, O., Scharf, F., Scharff-Hansen, P., Schenk, P., Schieck, J., Schleper, P., Schmitt, B., Schmitt, S., Schoning, A., Schroder, Matthias, Schultz-Coulon, H.C., Schumacher, M., Schwick, C., Scott, W.G., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G.P., Sittler, A., Skillman, A., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Springer, Robert Wayne, Sproston, M., Stephens, K., Steuerer, J., Stockhausen, B., Stoll, K., Strom, David M., Szymanski, P., Tafirout, R., Talbot, S.D., Tanaka, S., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomson, M.A., von Torne, E., Towers, S., Trigger, I., Trocsanyi, Z., Tsur, E., Turcot, A.S., Turner-Watson, M.F., Utzat, P., Van Kooten, Rick J., Verzocchi, M., Vikas, P., Vokurka, E.H., Voss, H., Wackerle, F., Wagner, A., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wermes, N., White, J.S., Wilkens, B., Wilson, G.W., Wilson, J.A., Wolf, G., Wyatt, T.R., Yamashita, S., Yekutieli, G., Zacek, V., and Zer-Zion, D.
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: A search for charginos and neutralinos, predicted by supersymmetric theories, has been performed using a data sample of 10.3 pb^-1 at centre-of-mass energies of sqrt(s) = 170 and 172 GeV with the OPAL detector at LEP. No evidence for these particles has been found. The results are combined with those from previous OPAL chargino and neutralino searches at lower energies to obtain limits. Exclusion regions at 95% C.L. of parameters of the Minimal Supersymmetric Standard Model are determined. Within this framework, for tan(beta) >= 1.0, lower mass limits are placed on the lightest chargino and the three lightest neutralinos. The 95% C.L. lower mass limit on the lightest chargino, assuming that it is heavier than the lightest neutralino by more than 10 GeV, is 84.5 GeV for the case of a large universal scalar mass (m_0 > ~1 TeV) and 65.7 GeV for the smallest m_0 compatible with current limits on the sneutrino and slepton masses. The lower limit on the lightest neutralino mass at 95% C.L. for tan(beta) >= 1.0 is 24.7 GeV for m_0 = 1 TeV and 13.3 GeV for the minimum m_0 scenario. These mass limits are higher for increasing values of tan(beta). The interpretation of the limits in terms of gluino and scalar quark mass limits is also given. A search for charginos and neutralinos, predicted by supersymmetric theories, has been performed using a data sample of 10.3 pb^-1 at centre-of-mass energies of sqrt(s) = 170 and 172 GeV with the OPAL detector at LEP. No evidence for these particles has been found. The results are combined with those from previous OPAL chargino and neutralino searches at lower energies to obtain limits. Exclusion regions at 95% C.L. of parameters of the Minimal Supersymmetric Standard Model are determined. Within this framework, for tan(beta) >= 1.0, lower mass limits are placed on the lightest chargino and the three lightest neutralinos. The 95% C.L. lower mass limit on the lightest chargino, assuming that it is heavier than the lightest neutralino by more than 10 GeV, is 84.5 GeV for the case of a large universal scalar mass (m_0 > ~1 TeV) and 65.7 GeV for the smallest m_0 compatible with current limits on the sneutrino and slepton masses. The lower limit on the lightest neutralino mass at 95% C.L. for tan(beta) >= 1.0 is 24.7 GeV for m_0 = 1 TeV and 13.3 GeV for the minimum m_0 scenario. These mass limits are higher for increasing values of tan(beta). The interpretation of the limits in terms of gluino and scalar quark mass limits is also given.
Published: 1997

223. Measurement of the branching fractions and forward-backward asymmetries of the $Z^0$ into light quarks

Author: Ackerstaff, K., Alexander, G., Allison, John, Altekamp, N., Anderson, K.J., Anderson, S., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Ball, A.H., Barberio, E., Barlow, Roger J., Bartoldus, R., Batley, J.R., Baumann, S., Bechtluft, J., Beeston, C., Behnke, T., Bell, A.N., Bell, Kenneth Watson, Bella, G., Bentvelsen, S., Berlich, P., Bethke, S., Biebel, O., Biguzzi, A., Bird, S.D., Blobel, V., Bloodworth, I.J., Bloomer, J.E., Bobinski, M., Bock, P., Bonacorsi, D., Boutemeur, M., Bouwens, B.T., Braibant, S., Brigliadori, L., Brown, Robert M., Burckhart, H.J., Burgard, C., Burgin, R., Capiluppi, P., Carnegie, R.K., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Chrisman, D., Clarke, P.E.L., Cohen, I., Conboy, J.E., Cooke, O.C., Cuffiani, M., Dado, S., Dallapiccola, C., Dallavalle, G.Marco, De Jong, S., del Pozo, L.A., Desch, K., Dixit, M.S., do Couto e Silva, E., Doucet, M., Duchovni, E., Duckeck, G., Duerdoth, I.P., Eatough, D., Edwards, J.E.G., Estabrooks, P.G., Evans, H.G., Evans, M., Fabbri, F., Fanti, M., Faust, A.A., Fiedler, F., Fierro, M., Fischer, H.M., Fleck, I., Folman, R., Fong, D.G., Foucher, M., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gascon, J., Gascon-Shotkin, S.M., Geddes, N.I., Geich-Gimbel, C., Geralis, T., Giacomelli, G., Giacomelli, P., Giacomelli, R., Gibson, V., Gibson, W.R., Gingrich, D.M., Glenzinski, D., Goldberg, J., Goodrick, M.J., Gorn, W., Grandi, C., Gross, E., Grunhaus, J., Gruwe, M., Hajdu, C., Hanson, G.G., Hansroul, M., Hapke, M., Hargrove, C.K., Hart, P.A., Hartmann, C., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Herndon, M., Herten, G., Heuer, R.D., Hildreth, M.D., Hill, J.C., Hillier, S.J., Hilse, T., Hobson, P.R., Homer, R.J., Honma, A.K., Horvath, D., Howard, R., Hutchcroft, D.E., Igo-Kemenes, P., Imrie, D.C., Ingram, M.R., Ishii, K., Jawahery, A., Jeffreys, P.W., Jeremie, H., Jimack, M., Joly, A., Jones, C.R., Jones, G., Jones, M., Jost, U., Jovanovic, P., Junk, T.R., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kirk, J., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Koetke, D.S., Kokott, T.P., Kolrep, M., Komamiya, S., Kress, T., Krieger, P., von Krogh, J., Kyberd, P., Lafferty, G.D., Lahmann, R., Lai, W.P., Lanske, D., Lauber, J., Lautenschlager, S.R., Layter, J.G., Lazic, D., Lee, A.M., Lefebvre, E., Lellouch, D., Letts, J., Levinson, L., Lloyd, S.L., Loebinger, F.K., Long, G.D., Losty, M.J., Ludwig, J., Macchiolo, A., Macpherson, A., Mannelli, M., Marcellini, S., Markus, C., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., Mckigney, E.A., McMahon, T.J., McPherson, R.A., Meijers, F., Menke, S., Merritt, F.S., Mes, H., Meyer, J., Michelini, A., Mikenberg, G., Miller, D.J., Mincer, A., Mir, R., Mohr, W., Montanari, A., Mori, T., Morii, M., Muller, U., Nagai, K., Nakamura, I., Neal, H.A., Nellen, B., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Oldershaw, N.J., Oreglia, M.J., Orito, S., Palinkas, J., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Pearce, M.J., Petzold, S., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poffenberger, P., Poli, B., Posthaus, A., Przysiezniak, H., Rees, D.L., Rigby, D., Robertson, S., Robins, S.A., Rodning, N., Roney, J.M., Rooke, A., Ros, E., Rossi, A.M., Rosvick, M., Routenburg, P., Rozen, Y., Runge, K., Runolfsson, O., Ruppel, U., Rust, D.R., Rylko, R., Sachs, K., Saeki, T., Sarkisian, E.K.G., Sbarra, C., Schaile, A.D., Schaile, O., Scharf, F., Scharff-Hansen, P., Schenk, P., Schieck, J., Schleper, P., Schmitt, B., Schmitt, S., Schoning, A., Schroder, Matthias, Schultz-Coulon, H.C., Schulz, M., Schumacher, M., Schwick, C., Scott, W.G., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G.P., Sittler, A., Skillman, A., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Springer, Robert Wayne, Sproston, M., Stephens, K., Steuerer, J., Stockhausen, B., Stoll, K., Strom, David M., Szymanski, P., Tafirout, R., Talbot, S.D., Tanaka, S., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomson, M.A., von Torne, E., Towers, S., Trigger, I., Tsur, E., Turcot, A.S., Turner-Watson, M.F., Utzat, P., Van Kooten, Rick J., Verzocchi, M., Vikas, P., Vokurka, E.H., Voss, H., Wackerle, F., Wagner, A., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wermes, N., White, J.S., Wilkens, B., Wilson, G.W., Wilson, J.A., Wolf, G., Wyatt, T.R., Yamashita, S., Yekutieli, G., Zacek, V., and Zer-Zion, D.
Subjects: Quark, COLLISIONS, Strange quark, Particle physics, E+E ANNIHILATION, Physics and Astronomy (miscellaneous), LUND MONTE-CARLO, Flavour, Hadron, SIMULATION PROGRAM, FOS: Physical sciences, ELECTROWEAK COUPLINGS, Branching (polymer chemistry), 01 natural sciences, DECAYS, JET FRAGMENTATION, Standard Model, High Energy Physics - Experiment, PHYSICS, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, 010306 general physics, Physics, 010308 nuclear & particles physics, PHOTON PRODUCTION, MICROVERTEX DETECTOR, Isospin, Up quark, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Particle Physics - Experiment
Abstract: Using approximately 4.3 million hadronic Z^0 decays collected with the OPAL detector at LEP between 1990 and 1995, we measure the branching fractions of the Z^0 into up-type and down-type light quarks, R_q, and the forward-backward asymmetries, A_FB(q), using high-momentum stable particles as a tag. Adopting a method that employs double tagged events to determine the flavour tagging efficiencies, and assuming the flavour independence of strong interactions and SU(2) isospin symmetry, we measure: R_{d,s}/(R_d + R_u + R_s) = 0.371 +/- 0.016(stat.) +/- 0.016(syst.) and A_FB(d,s) = 0.068 +/- 0.035(stat.) +/- 0.011(syst.), assuming the branching fractions and forward-backward asymmetries of down and strange quarks to be equal. The results are essentially free of assumptions based on hadronisation models. These results are in agreement with the Standard Model expectations and are used to infer the left and right handed couplings of strange/down quarks to the Z^0, yielding g_L^{d,s} = -0.44^{+0.13}_{-0.09} and g_R^{d,s} = +0.13^{+0.15}_{-0.17}. The results for the up quark, R_u/(R_d + R_u + R_s) = 0.258 +/- 0.031(stat.) +/- 0.032(syst.) and A_FB(u)= 0.040 +/- 0.067(stat.) +/- 0.028(syst.), are fully negatively correlated and almost completely positively correlated, respectively, with the corresponding down-type results., 33 pages, LaTeX, 7 eps figures included, uses a4p.sty, submitted to Zeit. f. Physik C
Published: 1997

224. A study of B meson oscillations using hadronic $Z^0$ decays containing leptons

Author: Ackerstaff, K., Alexander, G., Allison, J., Altekamp, N., Anderson, Kj, Anderson, S., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Ball, Ah, Barberio, E., Barlow, Rj, Bartoldus, R., Batley, Jr, Baumann, S., Bechtluft, J., Beeston, C., Behnke, T., Bell, An, Bell, Kw, Bella, G., Bentvelsen, S., Berlich, P., Bethke, S., Biebel, O., Biguzzi, A., Bird, Sd, Blobel, V., Bloodworth, Ij, Bloomer, Je, Bobinski, M., Bock, P., Bonacorsi, D., Boutemeur, M., Bouwens, Bt, Braibant, S., Brigliadori, L., Brown, Rm, Burckhart, Hj, Burgard, C., Burgin, R., Capiluppi, P., Carnegie, Rk, Carter, Aa, Carter, Jr, Chang, Cy, Charlton, Dg, Chrisman, D., Clarke, Pel, Cohen, I., Conboy, Je, Cooke, Oc, Cuffiani, M., Dado, S., Dallapiccola, C., Dallavalle, Gm, Dejong, S., Delpozo, La, Desch, K., Dixit, Ms, Silva, Edce, Mathieu Doucet, Duchovni, E., Duckeck, G., Duerdoth, Ip, Eatough, D., Edwards, Jeg, Estabrooks, Pg, Evans, Hg, Evans, M., Fabbri, F., Fanti, M., Faust, Aa, Fiedler, F., Fierro, M., Fischer, Hm, Fleck, I., Folman, R., Fong, Dg, Foucher, M., Furtjes, A., Futyan, Di, Gagnon, P., Gary, Jw, Gascon, J., Gasconshotkin, Sm, Geddes, Ni, Geichgimbel, C., Geralis, T., Giacomelli, G., Giacomelli, P., Giacomelli, R., Gibson, V., Gibson, Wr, Gingrich, Dm, Glenzinski, D., Goldberg, J., Goodrick, Mj, Gorn, W., Grandi, C., Gross, E., Grunhaus, J., Gruwe, M., Hajdu, C., Hanson, Gg, Hansroul, M., Hapke, M., Hargrove, Ck, Hart, Pa, Hartmann, C., Hauschild, M., Hawkes, Cm, Hawkings, R., Hemingway, Rj, Herndon, M., Herten, G., Heuer, Rd, Hildreth, Md, Hill, Jc, Hillier, Sj, Hilse, T., Hobson, Pr, Homer, Rj, Honma, Ak, Horvath, D., Howard, R., HUTCHCROFT, DE, Igokemenes, P., Imrie, Dc, INGRAM, MR, Ishii, K., Jawahery, A., Jeffreys, Pw, Jeremie, H., Jimack, M., Joly, A., Jones, Cr, Jones, G., Jones, M., Jost, U., Jovanovic, P., Junk, Tr, Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Keeler, Rk, Kellogg, Rg, Kennedy, Bw, Kirk, J., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Koetke, Ds, Kokott, Tp, Kolrep, M., Komamiya, S., Kress, T., Krieger, P., Vonkrogh, J., Kyberd, P., Lafferty, Gd, Lahmann, R., Lai, Wp, Lanske, D., Lauber, J., Lautenschlager, Sr, Layter, Jg, Lazic, D., Lee, Am, Lefebvre, E., Lellouch, D., Letts, J., Levinson, L., Lloyd, Sl, Loebinger, Fk, Long, Gd, Losty, Mj, Ludwig, J., Macchiolo, A., Macpherson, A., Mannelli, M., Marcellini, S., Markus, C., Martin, Aj, Martin, Jp, Martinez, G., Mashimo, T., Mattig, P., Mcdonald, Wj, Mckenna, J., Mckigney, Ea, Mcmahon, Tj, Mcpherson, Ra, Meijers, F., Menke, S., Merritt, Fs, Mes, H., Meyer, J., Michelini, A., Mikenberg, G., Miller, Dj, Mincer, A., Mir, R., Mohr, W., Montanari, A., Mori, T., Morii, M., Muller, U., Nagai, K., Nakamura, I., Neal, Ha, Nellen, B., Nisius, R., Oneale, Sw, Oakham, Fg, Odorici, F., Ogren, Ho, Oldershaw, Nj, Oreglia, Mj, Orito, S., Palinkas, J., Pasztor, G., Pater, Jr, Patrick, Gn, Patt, J., Pearce, Mj, Petzold, S., Pfeifenschneider, P., Pilcher, Je, Pinfold, J., PLANE, DE, Poffenberger, P., Poli, B., Posthaus, A., Przysiezniak, H., Rees, Dl, Rigby, D., Robertson, S., Robins, Sa, Rodning, N., Roney, Jm, Rooke, A., Ros, E., Rossi, Am, Rosvick, M., Routenburg, P., Rozen, Y., Runge, K., Runolfsson, O., Ruppel, U., Rust, Dr, Rylko, R., Sachs, K., Saeki, T., Sarkisyan, Ekg, Sbarra, C., Schaile, Ad, Schaile, O., Scharf, F., Scharffhansen, P., Schenk, P., Schieck, J., Schleper, P., Schmitt, B., Schmitt, S., Schoning, A., Schroder, M., Schultzcoulon, Hc, Schulz, M., Schumacher, M., Schwick, C., Scott, Wg, Shears, Tg, Shen, Bc, Shepherdthemistocleous, Ch, Sherwood, P., Siroli, Gp, Sittler, A., Skillman, A., Skuja, A., Smith, Am, Snow, Ga, Sobie, R., Soldnerrembold, S., Springer, Rw, Sproston, M., Stephens, K., Steuerer, J., Stockhausen, B., Stoll, K., Strom, D., Szymanski, P., Tafirout, R., Talbot, Sd, Tanaka, S., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomson, Ma, Vontorne, E., Towers, S., Trigger, I., Tsur, E., Turcot, As, Turnerwatson, Mf, Utzat, P., Vankooten, R., Verzocchi, M., Vikas, P., Vokurka, Eh, Voss, H., Wackerle, F., Wagner, A., Ward, Cp, Ward, Dr, Watkins, Pm, Watson, At, Watson, Nk, Wells, Ps, Wermes, N., White, Js, Wilkens, B., Wilson, Gw, Wilson, Ja, Wolf, G., Wyatt, Tr, Yamashita, S., Yekutieli, G., Zacek, V., and Zerzion, D.
Subjects: Particle physics, Physics and Astronomy (miscellaneous), CPT symmetry, B%28B%29OVER-BAR%29%2FGAMMA%28Z%280%29->HADRONS%29%22">GAMMA(Z(0)->B(B)OVER-BAR)/GAMMA(Z(0)->HADRONS), Flavour, Hadron, FOS: Physical sciences, TIME-DEPENDENCE, Jet (particle physics), FREQUENCY, 01 natural sciences, STRINGS, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, B meson, 010306 general physics, Physics, 010308 nuclear & particles physics, Charge (physics), LEP, MICROVERTEX DETECTOR, QUARK FRAGMENTATION, SUPERWEAK, CP violation, JET CHARGE, CP VIOLATION, Particle Physics - Experiment, Lepton
Abstract: An event sample enriched in semileptonic decays of b hadrons is selected using an inclusive lepton selection from approximately 3.0 million hadronic Z^0 decays collected with the OPAL detector. This sample is used to investigate B meson oscillations by reconstructing a proper decay time for the parent of each lepton, using a jet charge method to estimate the production flavour of this parent, and using the lepton charge to tag the decay flavour. We measure the mass difference between the two B^0_d mass eigenstates Delta(m_d) = 0.444 +/- 0.029 + 0.020 - 0.017 ps^-1. For the B^0_s system, we find Delta(m_s) > 3.1 ps^-1 at the 95% confidence level. This limit varies only a little if alternative limit setting approaches are adopted. Regions at higher Delta(m_s) are also excluded with some methods for setting the limit. By studying the charge symmetry of the B^0_d mixing structure, we are able to constrain possible CP and CPT violating effects. We measure the CP violation parameter Re(epsilon_B) = -0.006 +/- 0.010 +/- 0.006 and the indirect CPT violating parameter Im(delta_B) = -0.020 +/- 0.016 +/- 0.006. If we invoke CPT symmetry, then we obtain Re(epsilon_B) = 0.002 +/- 0.007 +/- 0.003., 35 pages, LaTeX, 13 eps figures included, submitted to Zeit. f. Physik
Published: 1997

225. Status report of the RD45 project

Author: Malon, D M, May, E, Zybert, R, Purschke, M L, Arderiu-Ribera, E, Becla, J, Binko, P, Cosmo, G, Couet, O, Düllmann, D, Ferrero-Merlino, B, Folger, G, Gagliardi, F, Giani, S, Nowak, M A, Shiers, J, Cargnel, E, Hansroul, M, Innocente, Vincenzo, Tuura, L A, Willers, Ian Malcolm, Gasthuber, M, Khomenko, B A, Candlin, D J, Schaile, O, Buncic, P, Pfeiffer, A, Voigt, C A, Klochkov, B I, Klioukhine, V I, Day, C, Quarrie, D, Tull, C E, Katayama, N, Morita, Y, Baran, A, Jagielski, S, Malecki, P, Sobala, A, Wajda, W, Arnault, C, Schaffer, R D, Bos, Kors, Hendriks, P J, Organtini, G, Fischer, S M, Hrivnác, J, Hansl-Kozanecka, Traudl, Banerjee, S, Hasan, A, and Ullrich, T S
Subjects: Detectors and Experimental Techniques
Published: 1997

226. Object databases and their impact on storage-related aspects of HEP computing

Author: Malon, D M, May, E, Zybert, R, Purschke, M L, Arderiu-Ribera, E, Becla, J, Binko, P, Cosmo, G, Couet, O, Düllmann, D, Ferrero-Merlino, B, Folger, G, Gagliardi, F, Giani, S, Nowak, M A, Shiers, J, Cargnel, E, Hansroul, M, Innocente, Vincenzo, Tuura, L A, Willers, Ian Malcolm, Gasthuber, M, Khomenko, B A, Candlin, D J, Schaile, O, Buncic, P, Pfeiffer, A, Voigt, C A, Klochkov, B I, Klioukhine, V I, Day, C, Quarrie, D, Tull, C E, Katayama, N, Morita, Y, Baran, A, Jagielski, S, Malecki, P, Sobala, A, Wajda, W, Arnault, C, Schaffer, R D, Bos, Kors, Hendriks, P J, Organtini, G, Fischer, S M, Hrivnác, J, Hansl-Kozanecka, Traudl, Banerjee, S, Hasan, A, and Ullrich, T S
Subjects: Detectors and Experimental Techniques
Published: 1997

227. Object database features and HEP data management

Author: Malon, D M, May, E, Zybert, R, Purschke, M L, Arderiu-Ribera, E, Becla, J, Binko, P, Cosmo, G, Couet, O, Düllmann, D, Ferrero-Merlino, B, Folger, G, Gagliardi, F, Giani, S, Nowak, M A, Shiers, J, Cargnel, E, Hansroul, M, Innocente, Vincenzo, Tuura, L A, Willers, Ian Malcolm, Gasthuber, M, Khomenko, B A, Candlin, D J, Schaile, O, Buncic, P, Pfeiffer, A, Voigt, C A, Klochkov, B I, Klioukhine, V I, Day, C, Quarrie, D, Tull, C E, Katayama, N, Morita, Y, Baran, A, Jagielski, S, Malecki, P, Sobala, A, Wajda, W, Arnault, C, Schaffer, R D, Bos, Kors, Hendriks, P J, Organtini, G, Fischer, S M, Hrivnác, J, Hansl-Kozanecka, Traudl, Banerjee, S, Hasan, A, and Ullrich, T S
Subjects: Detectors and Experimental Techniques
Published: 1997

228. Measurement of the triple gauge boson coupling $\alpha_{W\phi}$ from $W^+ W^-$ production in $e^+ e^-$ collisions at $\sqrt{s}$ = 161 GeV

Author: Ackerstaff, K, Alexander, Gideon, Allison, J, Altekamp, N, Ametewee, K A, Anderson, K J, Anderson, S, Arcelli, S, Asai, S, Axen, D A, Azuelos, Georges, Ball, A H, Barberio, E, Barlow, R J, Bartoldus, R, Batley, J Richard, Bechtluft, J, Beeston, C, Behnke, T, Bell, A N, Bell, K W, Bella, G, Bentvelsen, Stanislaus Cornelius Maria, Berlich, P, Bethke, Siegfried, Biebel, O, Bird, S D, Biguzzi, A, Blobel, Volker, Bloodworth, Ian J, Bloomer, J E, Bobinski, M, Bock, P, Bosch, H M, Boutemeur, M, Bouwens, B T, Braibant, S, Brown, R M, Burckhart, Helfried J, Burgard, C, Bürgin, R, Capiluppi, P, Carnegie, R K, Carter, A A, Carter, J R, Chang, C Y, Charlton, D G, Chrisman, D, Clarke, P E L, Cohen, I, Conboy, J E, Cooke, O C, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, G M, De Jong, S, del Pozo, L A, Desch, Klaus, Dixit, M S, do Couto e Silva, E, Doucet, M, Duchovni, E, Duckeck, G, Duerdoth, I P, Eatough, D, Edwards, J E G, Estabrooks, P G, Evans, H G, Evans, M, Fabbri, Franco Luigi, Fanti, M, Fath, P, Faust, A A, Fiedler, F, Fierro, M, Fischer, H M, Folman, R, Fong, D G, Foucher, M, Fürtjes, A, Gagnon, P, Gary, J W, Gascon, J, Gascon-Shotkin, S M, Geddes, N I, Geich-Gimbel, C, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, W R, Gingrich, D M, Glenzinski, D A, Goldberg, J, Goodrick, M J, Gorn, W, Grandi, C, Gross, E, Grunhaus, Jacob, Gruwé, M, Hajdu, C, Hanson, G G, Hansroul, M, Hapke, M, Hargrove, C K, Hart, P A, Hartmann, C, Hauschild, M, Hawkes, C M, Hawkings, R, Hemingway, Richard J, Herndon, M, Herten, G, Heuer, R D, Hildreth, M D, Hill, J C, Hillier, S J, Hilse, T, Hobson, P R, Homer, R James, Honma, A K, Horváth, D, Howard, R, Hughes-Jones, R E, Hutchcroft, D E, Igo-Kemenes, P, Imrie, D C, Ingram, M R, Ishii, K, Jawahery, A, Jeffreys, P W, Jeremie, H, Jimack, Martin Paul, Joly, A, Jones, C R, Jones, G, Jones, M, Jones, R W L, Jost, U, Jovanovic, P, Junk, T R, Karlen, D A, Kawagoe, K, Kawamoto, T, Keeler, Richard K, Kellogg, R G, Kennedy, B W, Kirk, J, Kluth, S, Kobayashi, T, Kobel, M, Koetke, D S, Kokott, T P, Kolrep, M, Komamiya, S, Kress, T, Krieger, P, Von Krogh, J, Kyberd, P, Lafferty, G D, Lahmann, R, Lai, W P, Lanske, D, Lauber, J, Lautenschlager, S R, Layter, J G, Lazic, D, Lee, A M, Lefebvre, E, Lellouch, Daniel, Letts, J, Levinson, L, Lewis, C, Lloyd, S L, Loebinger, F K, Long, G D, Losty, Michael J, Ludwig, J, Macchiolo, A, MacPherson, A L, Mannelli, M, Marcellini, S, Markus, C, Martin, A J, Martin, J P, Martínez, G, Mashimo, T, Matthews, W, Mättig, P, McDonald, W J, McKenna, J A, McKigney, E A, McMahon, T J, McNab, A I, McPherson, R A, Meijers, F, Menke, S, Merritt, F S, Mes, H, Meyer, J, Michelini, Aldo, Mikenberg, G, Miller, D J, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Müller, U, Nagai, K, Nakamura, I, Neal, H A, Nellen, B, Nijjhar, B, Nisius, R, O'Neale, S W, Oakham, F G, Odorici, F, Ögren, H O, Oldershaw, N J, Omori, T, Oreglia, M J, Orito, S, Pálinkás, J, Pásztor, G, Pater, J R, Patrick, G N, Patt, J, Pearce, M J, Petzold, S, Pfeifenschneider, P, Pilcher, J E, Pinfold, James L, Plane, D E, Poffenberger, P R, Poli, B, Posthaus, A, Przysiezniak, H, Rees, D L, Rigby, D, Robertson, S, Robins, S A, Rodning, N L, Roney, J M, Rooke, A M, Ros, E, Rossi, A M, Rosvick, M, Routenburg, P, Rozen, Y, Runge, K, Runólfsson, O, Ruppel, U, Rust, D R, Rylko, R, Sachs, K, Sarkisyan-Grinbaum, E, Sasaki, M, Sbarra, C, Schaile, A D, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schmitt, B, Schmitt, S, Schröder, M, Schultz-Coulon, H C, Schulz, M, Schumacher, M, Schütz, P, Scott, W G, Shears, T G, Shen, B C, Shepherd-Themistocleous, C H, Sherwood, P, Siroli, G P, Sittler, A, Skillman, A, Skuja, A, Smith, A M, Smith, T J, Snow, G A, Sobie, Randall J, Söldner-Rembold, S, Springer, R W, Sproston, M, Stahl, A, Steiert, M, Stephens, K, Steuerer, J, Stockhausen, B, Strom, D, Szymanski, P, Tafirout, R, Talbot, S D, Tanaka, S, Taras, P, Tarem, S, Thiergen, M, Thomson, M A, Von Törne, E, Towers, S, Trigger, I, Tsukamoto, T, Tsur, E, Turcot, A S, Turner-Watson, M F, Utzat, P, Van Kooten, R, Verzocchi, M, Vikas, P, Vincter, M G, Vokurka, E H, Wäckerle, F, Wagner, A, Ward, C P, Ward, D R, Ward, J J, Watkins, P M, Watson, A T, Watson, N K, Wells, P S, Wermes, N, White, J S, Wilkens, B, Wilson, G W, Wilson, J A, Wolf, G, Wotton, S A, Wyatt, T R, Yamashita, S, Yekutieli, G, Zacek, V, and Zer-Zion, D
Subjects: Particle Physics - Experiment
Published: 1997

229. Measurement of QED structure functions of the photon using azimuthal correlations at LEP (revised title)

Author: Ackerstaff, K, Alexander, Gideon, Allison, J, Altekamp, N, Ametewee, K A, Anderson, K J, Anderson, S, Arcelli, S, Asai, S, Axen, D A, Azuelos, Georges, Ball, A H, Barberio, E, Barlow, R J, Bartoldus, R, Batley, J Richard, Bechtluft, J, Beeston, C, Behnke, T, Bell, A N, Bell, K W, Bella, G, Bentvelsen, Stanislaus Cornelius Maria, Berlich, P, Bethke, Siegfried, Biebel, O, Blobel, Volker, Bloodworth, Ian J, Bloomer, J E, Bobinski, M, Bock, P, Bosch, H M, Boutemeur, M, Bouwens, B T, Braibant, S, Brown, R M, Burckhart, Helfried J, Burgard, C, Bürgin, R, Capiluppi, P, Carnegie, R K, Carter, A A, Carter, J R, Chang, C Y, Charlton, D G, Chrisman, D, Clarke, P E L, Cohen, I, Conboy, J E, Cooke, O C, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, G M, De Jong, S, del Pozo, L A, Desch, Klaus, Dixit, M S, do Couto e Silva, E, Doucet, M, Duchovni, E, Duckeck, G, Duerdoth, I P, Edwards, J E G, Estabrooks, P G, Evans, H G, Evans, M, Fabbri, Franco Luigi, Fath, P, Fiedler, F, Fierro, M, Fischer, H M, Folman, R, Fong, D G, Foucher, M, Fürtjes, A, Gagnon, P, Gaidot, A, Gary, J W, Gascon, J, Gascon-Shotkin, S M, Geddes, N I, Geich-Gimbel, C, Gentit, F X, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, W R, Gingrich, D M, Glenzinski, D A, Goldberg, J, Goodrick, M J, Gorn, W, Grandi, C, Gross, E, Grunhaus, Jacob, Gruwé, M, Hajdu, C, Hanson, G G, Hansroul, M, Hapke, M, Hargrove, C K, Hart, P A, Hartmann, C, Hauschild, M, Hawkes, C M, Hawkings, R, Hemingway, Richard J, Herndon, M, Herten, G, Heuer, R D, Hildreth, M D, Hill, J C, Hillier, S J, Hilse, T, Hobson, P R, Homer, R James, Honma, A K, Horváth, D, Howard, R, Hughes-Jones, R E, Hutchcroft, D E, Igo-Kemenes, P, Imrie, D C, Ingram, M R, Ishii, K, Jawahery, A, Jeffreys, P W, Jeremie, H, Jimack, Martin Paul, Joly, A, Jones, C R, Jones, G, Jones, M, Jones, R W L, Jost, U, Jovanovic, P, Junk, T R, Karlen, D A, Kawagoe, K, Kawamoto, T, Keeler, Richard K, Kellogg, R G, Kennedy, B W, King, B J, Kirk, J, Kluth, S, Kobayashi, T, Kobel, M, Koetke, D S, Kokott, T P, Kolrep, M, Komamiya, S, Kress, T, Krieger, P, Von Krogh, J, Kyberd, P, Lafferty, G D, Lafoux, H, Lahmann, R, Lai, W P, Lanske, D, Lauber, J, Lautenschlager, S R, Layter, J G, Lazic, D, Lee, A M, Lefebvre, E, Lellouch, Daniel, Letts, J, Levinson, L, Lewis, C, Lloyd, S L, Loebinger, F K, Long, G D, Losty, Michael J, Ludwig, J, Malik, A, Mannelli, M, Marcellini, S, Markus, C, Martin, A J, Martin, J P, Martínez, G, Mashimo, T, Matthews, W, Mättig, P, McDonald, W J, McKenna, J A, McKigney, E A, McMahon, T J, McNab, A I, McPherson, R A, Meijers, F, Menke, S, Merritt, F S, Mes, H, Meyer, J, Michelini, Aldo, Mikenberg, G, Miller, D J, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Müller, U, Nagai, K, Nakamura, I, Neal, H A, Nellen, B, Nijjhar, B, Nisius, R, O'Neale, S W, Oakham, F G, Odorici, F, Ögren, H O, Oldershaw, N J, Omori, T, Oreglia, M J, Orito, S, Pálinkás, J, Pásztor, G, Pater, J R, Patrick, G N, Patt, J, Pearce, M J, Petzold, S, Pfeifenschneider, P, Pilcher, J E, Pinfold, J L, Plane, D E, Poffenberger, P R, Poli, B, Posthaus, A, Przysiezniak, H, Rees, D L, Rigby, D, Robertson, S, Robins, S A, Rodning, N L, Roney, J M, Rooke, A M, Ros, E, Rossi, A M, Rosvick, M, Routenburg, P, Rozen, Y, Runge, K, Runólfsson, O, Ruppel, U, Rust, D R, Rylko, R, Sachs, K, Sarkisyan-Grinbaum, E, Sasaki, M, Sbarra, C, Schaile, A D, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schmitt, B, Schmitt, S, Schröder, M, Schultz-Coulon, H C, Schulz, M, Schumacher, M, Schütz, P, Scott, W G, Shears, T G, Shen, B C, Shepherd-Themistocleous, C H, Sherwood, P, Siroli, G P, Sittler, A, Skillman, A, Skuja, A, Smith, A M, Smith, T J, Snow, G A, Sobie, Randall J, Söldner-Rembold, S, Springer, R W, Sproston, M, Stahl, A, Steiert, M, Stephens, K, Steuerer, J, Stockhausen, B, Strom, D, Strumia, F, Szymanski, P, Tafirout, R, Talbot, S D, Tanaka, S, Taras, P, Tarem, S, Thiergen, M, Thomson, M A, Von Törne, E, Towers, S, Trigger, I, Tsukamoto, T, Tsur, E, Turcot, A S, Turner-Watson, M F, Utzat, P, Van Kooten, R, Vasseur, G, Verzocchi, M, Vikas, P, Vincter, M G, Vokurka, E H, Wäckerle, F, Wagner, A, Ward, C P, Ward, D R, Ward, J J, Watkins, P M, Watson, A T, Watson, N K, Wells, P S, Wermes, N, White, J S, Wilkens, B, Wilson, G W, Wilson, J A, Wolf, G, Wotton, S A, Wyatt, T R, Yamashita, S, Yekutieli, G, and Zacek, V
Subjects: Particle Physics - Experiment
Published: 1997

230. Search for the Standard Model Higgs Boson in e^+e^- Collisions at sqrt{s} = 161-172 GeV

Author: Ackerstaff, K, Alexander, G, Allison, J, Altekamp, N, Anderson, KJ, Anderson, S, Arcelli, S, Asai, S, Axen, D, Azuelos, G, Ball, AH, Loebinger, FK, Long, GD, Losty, MJ, Ludwig, J, Macchiolo, A, Macpherson, A, Mannelli, M, Marcellini, S, Markus, C, Bell, AN, Gorn, W, Martin, AJ, Martine, JP, Martinez, G, Mashimo, T, Mattig, P, McDonald, WJ, McKenna, J, Mckigney, EA, Mcmahon, TJ, McPherson, RA, Grandi, C, Bell, KW, Meijers, F, Menke, S, Merritt, FS, Mes, H, Meyer, J, Michelini, A, Mikenberg, G, Miller, DJ, Mincer, A, Gross, E, Mir, R, Bella, G, Mohr, W, Montanari, A, Mori, T, Morii, M, Muller, U, Mihara, S, Nagai, K, Nakamura, I, Grunhaus, J, Neal, HA, Nellen, B, Bentvelsen, S, Nisius, R, O'Neale, SW, Oakham, FG, Odorici, F, Ogren, HO, Oh, A, Oldershaw, NJ, Oreglia, MJ, Orito, S, Palinkas, J, Bethke, S, Pasztor, G, Pater, JR, Patrick, GN, Patt, J, Pearce, MJ, Perez-Ochoa, R, Gruwe, M, Petzold, S, Pfeifenschneider, P, Pilcher, JE, Pinfold, J, Biebel, O, Plane, DE, Poffenberger, P, Poli, B, Posthaus, A, Rees, DL, Hajdu, C, Rigby, D, Robertson, S, Robins, SA, Rodning, N, Roney, JM, Biguzzi, A, Rooke, A, Ros, E, Rossi, AM, Routenburg, P, Hanson, GG, Rozen, Y, Runge, K, Runolfsson, O, Ruppel, U, Rust, DR, Rylko, R, Bird, SD, Sachs, K, Saeki, T, Sarkisyan, EKG, Hansroul, M, Sbarra, C, Schaile, AD, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schieck, J, Blobel, V, Schleper, P, Schmitt, B, Hapke, M, Schmitt, S, Schoning, A, Schroder, M, Schultz-Coulon, HC, Schumacher, M, Schwick, C, Scott, WG, Shears, TG, Bloodworth, IJ, Shen, BC, Barberio, E, Shepherd-Themistocleous, CH, Sherwood, P, Siroli, GP, Sittler, A, Skillman, A, Skuja, A, Smith, AM, Snow, GA, Sobie, R, Bloomer, JE, Hargrove, CK, Soldner-Rembold, S, Springer, RW, Sproston, M, Stephens, K, Steuerer, J, Stockhausen, B, Stoll, K, Strom, D, Szymanski, P, Tafirout, R, Hart, PA, Bobinski, M, Talbot, SD, Tanaka, S, Taras, P, Tarem, S, Teuscher, R, Thiergen, M, Thomson, MA, von Torne, E, Towers, S, Hartmann, C, Trigger, I, Bock, P, Trocsanyi, Z, Tsur, E, Turcot, AS, Turner-Watson, MF, Utzat, P, Van Kooten, R, Verzocchi, M, Vikas, P, Hauschild, M, Vokurka, EH, Voss, H, Bonacorsi, D, Wackerle, F, Wagner, A, Ward, CP, Ward, DR, Watkins, PM, Watson, AT, Watson, NK, Hawkes, CM, Wells, PS, Wermes, N, White, JS, Boutemeur, M, Wilkens, B, Wilson, GW, Wilson, JA, Wolf, G, Wyatt, TR, Yamashita, S, Hawkings, R, Yekutieli, G, Zacek, V, Zer-Zion, D, OPAL Collaboration, Bouwens, BT, Braibant, S, Brigliadori, L, Brown, RM, Burckhart, HJ, Burgard, C, Hemingway, RJ, Burgin, R, Capiluppi, P, Carnegie, RK, Carter, AA, Carter, JR, Chang, CY, Charlton, DG, Chrisman, D, Clarke, PEL, Cohen, I, Herndon, M, Conboy, JE, Cooke, OC, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, GM, Davis, R, De Jong, S, del Pozo, LA, Desch, K, Herten, G, Dienes, B, Dixit, MS, Silva, EDE, Doucet, M, Duchovni, E, Duckeck, G, Duerdoth, IP, Eatough, D, Edwards, JEG, Estabrooks, PG, Heuer, RD, Evans, HG, Evans, M, Fabbri, F, Fanti, M, Faust, AA, Fiedler, F, Fierro, M, Fischer, HM, Fleck, I, Folman, R, Barlow, RJ, Fong, DG, Foucher, M, Furtjes, A, Futyan, DI, Gagnon, P, Gary, JW, Gascon, J, Gascon-Shotkin, SM, Geddes, NI, Geich-Gimbel, C, Hildreth, MD, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, WR, Gingrich, DM, Glenzinski, D, Goldberg, J, Goodrick, MJ, Hill, JC, Hillier, SJ, Hobson, PR, Homer, RJ, Honma, AK, Horvath, D, Hossain, KR, Howard, R, Huntemeyer, P, Bartoldus, R, Hutchcroft, DE, Igo-Kemenes, P, Imrie, DC, Ingram, MR, Ishii, K, Jawahery, A, Jeffreys, PW, Jeremie, H, Jimack, M, Joly, A, Batley, JR, Jones, CR, Jones, G, Jone, M, Jost, U, Jovanovic, P, Junk, TR, Karlen, D, Kartvelishvili, V, Kawagoe, K, Kawamoto, T, Baumann, S, Kayal, PI, Keeler, RK, Kellogg, RG, Kennedy, BW, Kirk, J, Klier, A, Kluth, S, Kobayashi, T, Kobel, M, Koetke, DS, Bechtluft, J, Kokott, TP, Kolrep, M, Komamiya, S, Kress, T, Krieger, P, von Krogh, J, Kyberd, P, Lafferty, GD, Lahmann, R, Lai, WP, Beeston, C, Lanske, D, Lauber, J, Lautenschlager, SR, Layter, JG, Lazic, D, Lee, AM, Lefebvre, E, Lellouch, D, Letts, J, Levinson, L, Behnke, T, and Lloyd, SL
Subjects: Physics, Particle physics, Program, Muon, Missing energy, Physics and Astronomy (miscellaneous), High Energy Physics::Phenomenology, FOS: Physical sciences, Detector, LEP, Electron, Fermion, High-Energies, Resonance (particle physics), Standard Model, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), E+E Annihilation, Higgs boson, High Energy Physics::Experiment, Limit, Cross-Sections, Engineering (miscellaneous), Particle Physics - Experiment, Lepton
Abstract: This paper describes a search for the Standard Model Higgs boson using data from e^+e^- collisions collected at center-of-mass energies of 161, 170 and 172 GeV by the OPAL detector at LEP. The data collected at these energies correspond to integrated luminosities of 10.0, 1.0 and 9.4 pb^-1, respectively. The search is sensitive to the main final states from the process in which the Higgs boson is produced in association with a fermion anti-fermion pair, namely four jets, two jets with missing energy, and two jets produced together with a pair of electron, muon or tau leptons. One candidate event is observed, in agreement with the Standard Model background expectation. In combination with previous OPAL searches at center-of-mass energies close to the Z^0 resonance and the revised previous OPAL searches at 161 GeV, we derive a lower limit of 69.4 GeV for the mass of the Standard Model Higgs boson at the 95% confidence level., Comment: 33 pages, LaTeX, 12 eps figures included, submitted to Zeit. Phys. C
Published: 1997
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231. Search for CP violation in $Z^0 \to \tau^+ \tau^-$ and an upper limit on the weak dipole moment of the $\tau$ lepton

Author: Ackerstaff, K, Alexander, Gideon, Allison, J, Altekamp, N, Ametewee, K A, Anderson, K J, Anderson, S, Arcelli, S, Asai, S, Axen, D A, Azuelos, Georges, Ball, A H, Barberio, E, Barlow, R J, Bartoldus, R, Batley, J Richard, Bechtluft, J, Beeston, C, Behnke, T, Bell, A N, Bell, K W, Bella, G, Bentvelsen, Stanislaus Cornelius Maria, Berlich, P, Bethke, Siegfried, Biebel, O, Biguzzi, A, Blobel, Volker, Bloodworth, Ian J, Bloomer, J E, Bobinski, M, Bock, P, Bosch, H M, Boutemeur, M, Bouwens, B T, Braibant, S, Brown, R M, Burckhart, Helfried J, Burgard, C, Bürgin, R, Capiluppi, P, Carnegie, R K, Carter, A A, Carter, J R, Chang, C Y, Charlton, D G, Chrisman, D, Clarke, P E L, Cohen, I, Conboy, J E, Cooke, O C, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, G M, De Jong, S, del Pozo, L A, Desch, Klaus, Dixit, M S, do Couto e Silva, E, Doucet, M, Duchovni, E, Duckeck, G, Duerdoth, I P, Edwards, J E G, Estabrooks, P G, Evans, H G, Evans, M, Fabbri, Franco Luigi, Fath, P, Fiedler, F, Fierro, M, Fischer, H M, Folman, R, Fong, D G, Foucher, M, Fürtjes, A, Gagnon, P, Gaidot, A, Gary, J W, Gascon, J, Gascon-Shotkin, S M, Geddes, N I, Geich-Gimbel, C, Gentit, F X, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, W R, Gingrich, D M, Glenzinski, D A, Goldberg, J, Goodrick, M J, Gorn, W, Grandi, C, Gross, E, Grunhaus, Jacob, Gruwé, M, Hajdu, C, Hanson, G G, Hansroul, M, Hapke, M, Hargrove, C K, Hart, P A, Hartmann, C, Hauschild, M, Hawkes, C M, Hawkings, R, Hemingway, Richard J, Herndon, M, Herten, G, Heuer, R D, Hildreth, M D, Hill, J C, Hillier, S J, Hilse, T, Hobson, P R, Homer, R James, Honma, A K, Horváth, D, Howard, R, Hughes-Jones, R E, Hutchcroft, D E, Igo-Kemenes, P, Imrie, D C, Ingram, M R, Ishii, K, Jawahery, A, Jeffreys, P W, Jeremie, H, Jimack, Martin Paul, Joly, A, Jones, C R, Jones, G, Jones, M, Jones, R W L, Jost, U, Jovanovic, P, Junk, T R, Karlen, D A, Kawagoe, K, Kawamoto, T, Keeler, Richard K, Kellogg, R G, Kennedy, B W, King, B J, Kirk, J, Kluth, S, Kobayashi, T, Kobel, M, Koetke, D S, Kokott, T P, Kolrep, M, Komamiya, S, Kress, T, Krieger, P, Von Krogh, J, Kyberd, P, Lafferty, G D, Lafoux, H, Lahmann, R, Lai, W P, Lanske, D, Lauber, J, Lautenschlager, S R, Layter, J G, Lazic, D, Lee, A M, Lefebvre, E, Lellouch, Daniel, Letts, J, Levinson, L, Lewis, C, Lloyd, S L, Loebinger, F K, Long, G D, Losty, Michael J, Ludwig, J, Malik, A, Mannelli, M, Marcellini, S, Markus, C, Martin, A J, Martin, J P, Martínez, G, Mashimo, T, Matthews, W, Mättig, P, McDonald, W J, McKenna, J A, McKigney, E A, McMahon, T J, McNab, A I, McPherson, R A, Meijers, F, Menke, S, Merritt, F S, Mes, H, Meyer, J, Michelini, Aldo, Mikenberg, G, Miller, D J, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Müller, U, Nagai, K, Nakamura, I, Neal, H A, Nellen, B, Nijjhar, B, Nisius, R, O'Neale, S W, Oakham, F G, Odorici, F, Ögren, H O, Oldershaw, N J, Omori, T, Oreglia, M J, Orito, S, Pálinkás, J, Pásztor, G, Pater, J R, Patrick, G N, Patt, J, Pearce, M J, Petzold, S, Pfeifenschneider, P, Pilcher, J E, Pinfold, James L, Plane, D E, Poffenberger, P R, Poli, B, Posthaus, A, Przysiezniak, H, Rees, D L, Rigby, D, Robertson, S, Robins, S A, Rodning, N L, Roney, J M, Rooke, A M, Ros, E, Rossi, A M, Rosvick, M, Routenburg, P, Rozen, Y, Runge, K, Runólfsson, O, Ruppel, U, Rust, D R, Rylko, R, Sachs, K, Sarkisyan-Grinbaum, E, Sasaki, M, Sbarra, C, Schaile, A D, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schmitt, B, Schmitt, S, Schröder, M, Schultz-Coulon, H C, Schulz, M, Schumacher, M, Schütz, P, Scott, W G, Shears, T G, Shen, B C, Shepherd-Themistocleous, C H, Sherwood, P, Siroli, G P, Sittler, A, Skillman, A, Skuja, A, Smith, A M, Smith, T J, Snow, G A, Sobie, Randall J, Söldner-Rembold, S, Springer, R W, Sproston, M, Stahl, A, Steiert, M, Stephens, K, Steuerer, J, Stockhausen, B, Strom, D, Strumia, F, Szymanski, P, Tafirout, R, Talbot, S D, Tanaka, S, Taras, P, Tarem, S, Thiergen, M, Thomson, M A, Von Törne, E, Towers, S, Trigger, I, Tsukamoto, T, Tsur, E, Turcot, A S, Turner-Watson, M F, Utzat, P, Van Kooten, R, Vasseur, G, Verzocchi, M, Vikas, P, Vincter, M G, Vokurka, E H, Wäckerle, F, Wagner, A, Ward, C P, Ward, D R, Ward, J J, Watkins, P M, Watson, A T, Watson, N K, Wells, P S, Wermes, N, White, J S, Wilkens, B, Wilson, G W, Wilson, J A, Wolf, G, Wotton, S A, Wyatt, T R, Yamashita, S, Yekutieli, G, and Zacek, V
Subjects: Particle Physics - Experiment
Published: 1996

232. A Measurement of |$V_{cb}$| Using $\overline{B}^0 \to D^{*+}l^- \overline{\nu}_l$ Decays

Author: Ackerstaff, K, Alexander, Gideon, Allison, J, Altekamp, N, Ametewee, K A, Anderson, K J, Anderson, S, Arcelli, S, Asai, S, Axen, D A, Azuelos, Georges, Ball, A H, Barberio, E, Barlow, R J, Bartoldus, R, Batley, J Richard, Bechtluft, J, Beeston, C, Behnke, T, Bell, A N, Bell, K W, Bella, G, Bentvelsen, Stanislaus Cornelius Maria, Berlich, P, Bethke, Siegfried, Biebel, O, Biguzzi, A, Blobel, Volker, Bloodworth, Ian J, Bloomer, J E, Bobinski, M, Bock, P, Bosch, H M, Boutemeur, M, Bouwens, B T, Braibant, S, Brown, R M, Burckhart, Helfried J, Burgard, C, Bürgin, R, Capiluppi, P, Carnegie, R K, Carter, A A, Carter, J R, Chang, C Y, Charlton, D G, Chrisman, D, Clarke, P E L, Cohen, I, Conboy, J E, Cooke, O C, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, G M, De Jong, S, del Pozo, L A, Desch, Klaus, Dixit, M S, do Couto e Silva, E, Doucet, M, Duchovni, E, Duckeck, G, Duerdoth, I P, Edwards, J E G, Estabrooks, P G, Evans, H G, Evans, M, Fabbri, Franco Luigi, Fath, P, Fiedler, F, Fierro, M, Fischer, H M, Folman, R, Fong, D G, Foucher, M, Fürtjes, A, Gagnon, P, Gaidot, A, Gary, J W, Gascon, J, Gascon-Shotkin, S M, Geddes, N I, Geich-Gimbel, C, Gentit, F X, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, W R, Gingrich, D M, Glenzinski, D A, Goldberg, J, Goodrick, M J, Gorn, W, Grandi, C, Gross, E, Grunhaus, Jacob, Gruwé, M, Hajdu, C, Hanson, G G, Hansroul, M, Hapke, M, Hargrove, C K, Hart, P A, Hartmann, C, Hauschild, M, Hawkes, C M, Hawkings, R, Hemingway, Richard J, Herndon, M, Herten, G, Heuer, R D, Hildreth, M D, Hill, J C, Hillier, S J, Hilse, T, Hobson, P R, Homer, R James, Honma, A K, Horváth, D, Howard, R, Hughes-Jones, R E, Hutchcroft, D E, Igo-Kemenes, P, Imrie, D C, Ingram, M R, Ishii, K, Jawahery, A, Jeffreys, P W, Jeremie, H, Jimack, Martin Paul, Joly, A, Jones, C R, Jones, G, Jones, M, Jones, R W L, Jost, U, Jovanovic, P, Junk, T R, Karlen, D A, Kawagoe, K, Kawamoto, T, Keeler, Richard K, Kellogg, R G, Kennedy, B W, King, B J, Kirk, J, Kluth, S, Kobayashi, T, Kobel, M, Koetke, D S, Kokott, T P, Kolrep, M, Komamiya, S, Kress, T, Krieger, P, Von Krogh, J, Kyberd, P, Lafferty, G D, Lafoux, H, Lahmann, R, Lai, W P, Lanske, D, Lauber, J, Lautenschlager, S R, Layter, J G, Lazic, D, Lee, A M, Lefebvre, E, Lellouch, Daniel, Letts, J, Levinson, L, Lewis, C, Lloyd, S L, Loebinger, F K, Long, G D, Losty, Michael J, Ludwig, J, Malik, A, Mannelli, M, Marcellini, S, Markus, C, Martin, A J, Martin, J P, Martínez, G, Mashimo, T, Matthews, W, Mättig, P, McDonald, W J, McKenna, J A, McKigney, E A, McMahon, T J, McNab, A I, McPherson, R A, Meijers, F, Menke, S, Merritt, F S, Mes, H, Meyer, J, Michelini, Aldo, Mikenberg, G, Miller, D J, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Müller, U, Nagai, K, Nakamura, I, Neal, H A, Nellen, B, Nijjhar, B, Nisius, R, O'Neale, S W, Oakham, F G, Odorici, F, Ögren, H O, Oldershaw, N J, Omori, T, Oreglia, M J, Orito, S, Pálinkás, J, Pásztor, G, Pater, J R, Patrick, G N, Patt, J, Pearce, M J, Petzold, S, Pfeifenschneider, P, Pilcher, J E, Pinfold, J L, Plane, D E, Poffenberger, P R, Poli, B, Posthaus, A, Przysiezniak, H, Rees, D L, Rigby, D, Robertson, S, Robins, S A, Rodning, N L, Roney, J M, Rooke, A M, Ros, E, Rossi, A M, Rosvick, M, Routenburg, P, Rozen, Y, Runge, K, Runólfsson, O, Ruppel, U, Rust, D R, Rylko, R, Sachs, K, Sarkisyan-Grinbaum, E, Sasaki, M, Sbarra, C, Schaile, A D, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schmitt, B, Schmitt, S, Schröder, M, Schultz-Coulon, H C, Schulz, M, Schumacher, M, Schütz, P, Scott, W G, Shears, T G, Shen, B C, Shepherd-Themistocleous, C H, Sherwood, P, Siroli, G P, Sittler, A, Skillman, A, Skuja, A, Smith, A M, Smith, T J, Snow, G A, Sobie, Randall J, Söldner-Rembold, S, Springer, R W, Sproston, M, Stahl, A, Steiert, M, Stephens, K, Steuerer, J, Stockhausen, B, Strom, D, Strumia, F, Szymanski, P, Tafirout, R, Talbot, S D, Tanaka, S, Taras, P, Tarem, S, Thiergen, M, Thomson, M A, Von Törne, E, Towers, S, Trigger, I, Tsukamoto, T, Tsur, E, Turcot, A S, Turner-Watson, M F, Utzat, P, Van Kooten, R, Vasseur, G, Verzocchi, M, Vikas, P, Vincter, M G, Vokurka, E H, Wäckerle, F, Wagner, A, Ward, C P, Ward, D R, Ward, J J, Watkins, P M, Watson, A T, Watson, N K, Wells, P S, Wermes, N, White, J S, Wilkens, B, Wilson, G W, Wilson, J A, Wolf, G, Wotton, S A, Wyatt, T R, Yamashita, S, Yekutieli, G, and Zacek, V
Subjects: Particle Physics - Experiment
Published: 1996

233. Search for the Standard Model Higgs Boson in $e^+ e^-$ Collisions at $\sqrt{s}$ = 161 GeV

Author: Ackerstaff, K, Alexander, Gideon, Allison, J, Altekamp, N, Ametewee, K A, Anderson, K J, Anderson, S, Arcelli, S, Asai, S, Axen, D A, Azuelos, Georges, Ball, A H, Barberio, E, Barlow, R J, Bartoldus, R, Batley, J Richard, Bechtluft, J, Beeston, C, Behnke, T, Bell, A N, Bell, K W, Bella, G, Bentvelsen, Stanislaus Cornelius Maria, Berlich, P, Bethke, Siegfried, Biebel, O, Biguzzi, A, Blobel, Volker, Bloodworth, Ian J, Bloomer, J E, Bobinski, M, Bock, P, Bosch, H M, Boutemeur, M, Bouwens, B T, Braibant, S, Brown, R M, Burckhart, Helfried J, Burgard, C, Bürgin, R, Capiluppi, P, Carnegie, R K, Carter, A A, Carter, J R, Chang, C Y, Charlton, D G, Chrisman, D, Clarke, P E L, Cohen, I, Conboy, J E, Cooke, O C, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, G M, De Jong, S, del Pozo, L A, Desch, Klaus, Dixit, M S, do Couto e Silva, E, Doucet, M, Duchovni, E, Duckeck, G, Duerdoth, I P, Edwards, J E G, Estabrooks, P G, Evans, H G, Evans, M, Fabbri, Franco Luigi, Fath, P, Fiedler, F, Fierro, M, Fischer, H M, Folman, R, Fong, D G, Foucher, M, Fürtjes, A, Gagnon, P, Gary, J W, Gascon, J, Gascon-Shotkin, S M, Geddes, N I, Geich-Gimbel, C, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, W R, Gingrich, D M, Glenzinski, D A, Goldberg, J, Goodrick, M J, Gorn, W, Grandi, C, Gross, E, Grunhaus, Jacob, Gruwé, M, Hajdu, C, Hanson, G G, Hansroul, M, Hapke, M, Hargrove, C K, Hart, P A, Hartmann, C, Hauschild, M, Hawkes, C M, Hawkings, R, Hemingway, Richard J, Herndon, M, Herten, G, Heuer, R D, Hildreth, M D, Hill, J C, Hillier, S J, Hilse, T, Hobson, P R, Homer, R James, Honma, A K, Horváth, D, Howard, R, Hughes-Jones, R E, Hutchcroft, D E, Igo-Kemenes, P, Imrie, D C, Ingram, M R, Ishii, K, Jawahery, A, Jeffreys, P W, Jeremie, H, Jimack, Martin Paul, Joly, A, Jones, C R, Jones, G, Jones, M, Jones, R W L, Jost, U, Jovanovic, P, Junk, T R, Karlen, D A, Kawagoe, K, Kawamoto, T, Keeler, Richard K, Kellogg, R G, Kennedy, B W, King, B J, Kirk, J, Kluth, S, Kobayashi, T, Kobel, M, Koetke, D S, Kokott, T P, Kolrep, M, Komamiya, S, Kress, T, Krieger, P, Von Krogh, J, Kyberd, P, Lafferty, G D, Lahmann, R, Lai, W P, Lanske, D, Lauber, J, Lautenschlager, S R, Layter, J G, Lazic, D, Lee, A M, Lefebvre, E, Lellouch, Daniel, Letts, J, Levinson, L, Lewis, C, Lloyd, S L, Loebinger, F K, Long, G D, Losty, Michael J, Ludwig, J, Mannelli, M, Marcellini, S, Markus, C, Martin, A J, Martin, J P, Martínez, G, Mashimo, T, Matthews, W, Mättig, P, McDonald, W J, McKenna, J A, McKigney, E A, McMahon, T J, McNab, A I, McPherson, R A, Meijers, F, Menke, S, Merritt, F S, Mes, H, Meyer, J, Michelini, Aldo, Mikenberg, G, Miller, D J, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Müller, U, Nagai, K, Nakamura, I, Neal, H A, Nellen, B, Nijjhar, B, Nisius, R, O'Neale, S W, Oakham, F G, Odorici, F, Ögren, H O, Oldershaw, N J, Omori, T, Oreglia, M J, Orito, S, Pálinkás, J, Pásztor, G, Pater, J R, Patrick, G N, Patt, J, Pearce, M J, Petzold, S, Pfeifenschneider, P, Pilcher, J E, Pinfold, J L, Plane, D E, Poffenberger, P R, Poli, B, Posthaus, A, Przysiezniak, H, Rees, D L, Rigby, D, Robertson, S, Robins, S A, Rodning, N L, Roney, J M, Rooke, A M, Ros, E, Rossi, A M, Rosvick, M, Routenburg, P, Rozen, Y, Runge, K, Runólfsson, O, Ruppel, U, Rust, D R, Rylko, R, Sachs, K, Sarkisyan-Grinbaum, E, Sasaki, M, Sbarra, C, Schaile, A D, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schmitt, B, Schmitt, S, Schröder, M, Schultz-Coulon, H C, Schulz, M, Schumacher, M, Schütz, P, Scott, W G, Shears, T G, Shen, B C, Shepherd-Themistocleous, C H, Sherwood, P, Siroli, G P, Sittler, A, Skillman, A, Skuja, A, Smith, A M, Smith, T J, Snow, G A, Sobie, Randall J, Söldner-Rembold, S, Springer, R W, Sproston, M, Stahl, A, Steiert, M, Stephens, K, Steuerer, J, Stockhausen, B, Strom, D, Strumia, F, Szymanski, P, Tafirout, R, Talbot, S D, Tanaka, S, Taras, P, Tarem, S, Thiergen, M, Thomson, M A, Von Törne, E, Towers, S, Trigger, I, Tsukamoto, T, Tsur, E, Turcot, A S, Turner-Watson, M F, Utzat, P, Van Kooten, R, Verzocchi, M, Vikas, P, Vincter, M G, Vokurka, E H, Wäckerle, F, Wagner, A, Ward, C P, Ward, D R, Ward, J J, Watkins, P M, Watson, A T, Watson, N K, Wells, P S, Wermes, N, White, J S, Wilkens, B, Wilson, G W, Wilson, J A, Wolf, G, Wotton, S A, Wyatt, T R, Yamashita, S, Yekutieli, G, and Zacek, V
Subjects: Particle Physics - Experiment
Published: 1996

234. Photonic Events with Large Missing Energy in $e^+ e^-$ Collisions at $\sqrt{s}$ = 161 GeV

Author: Ackerstaff, K, Alexander, Gideon, Allison, J, Altekamp, N, Ametewee, K A, Anderson, K J, Anderson, S, Arcelli, S, Asai, S, Axen, D A, Azuelos, Georges, Ball, A H, Barberio, E, Barlow, R J, Bartoldus, R, Batley, J Richard, Bechtluft, J, Beeston, C, Behnke, T, Bell, A N, Bell, K W, Bella, G, Bentvelsen, Stanislaus Cornelius Maria, Berlich, P, Bethke, Siegfried, Biebel, O, Blobel, Volker, Bloodworth, Ian J, Bloomer, J E, Bobinski, M, Bock, P, Bosch, H M, Boutemeur, M, Bouwens, B T, Braibant, S, Brown, R M, Buguzzi, A, Burckhart, Helfried J, Burgard, C, Bürgin, R, Capiluppi, P, Carnegie, R K, Carter, A A, Carter, J R, Chang, C Y, Charlton, D G, Chrisman, D, Clarke, P E L, Cohen, I, Conboy, J E, Cooke, O C, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, G M, De Jong, S, del Pozo, L A, Desch, Klaus, Dixit, M S, do Couto e Silva, E, Doucet, M, Duchovni, E, Duckeck, G, Duerdoth, I P, Edwards, J E G, Estabrooks, P G, Evans, H G, Evans, M, Fabbri, Franco Luigi, Fath, P, Fiedler, F, Fierro, M, Fischer, H M, Folman, R, Fong, D G, Foucher, M, Fürtjes, A, Gagnon, P, Gary, J W, Gascon, J, Gascon-Shotkin, S M, Geddes, N I, Geich-Gimbel, C, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, W R, Gingrich, D M, Glenzinski, D A, Goldberg, J, Goodrick, M J, Gorn, W, Grandi, C, Gross, E, Grunhaus, Jacob, Gruwé, M, Hajdu, C, Hanson, G G, Hansroul, M, Hapke, M, Hargrove, C K, Hart, P A, Hartmann, C, Hauschild, M, Hawkes, C M, Hawkings, R, Hemingway, Richard J, Herndon, M, Herten, G, Heuer, R D, Hildreth, M D, Hill, J C, Hillier, S J, Hilse, T, Hobson, P R, Homer, R James, Honma, A K, Horváth, D, Howard, R, Hughes-Jones, R E, Hutchcroft, D E, Igo-Kemenes, P, Imrie, D C, Ingram, M R, Ishii, K, Jawahery, A, Jeffreys, P W, Jeremie, H, Jimack, Martin Paul, Joly, A, Jones, C R, Jones, G, Jones, M, Jones, R W L, Jost, U, Jovanovic, P, Junk, T R, Karlen, D A, Kawagoe, K, Kawamoto, T, Keeler, Richard K, Kellogg, R G, Kennedy, B W, King, B J, Kirk, J, Kluth, S, Kobayashi, T, Kobel, M, Koetke, D S, Kokott, T P, Kolrep, M, Komamiya, S, Kress, T, Krieger, P, Von Krogh, J, Kyberd, P, Lafferty, G D, Lahmann, R, Lai, W P, Lanske, D, Lauber, J, Lautenschlager, S R, Layter, J G, Lazic, D, Lee, A M, Lefebvre, E, Lellouch, Daniel, Letts, J, Levinson, L, Lewis, C, Lloyd, S L, Loebinger, F K, Long, G D, Losty, Michael J, Ludwig, J, Mannelli, M, Marcellini, S, Markus, C, Martin, A J, Martin, J P, Martínez, G, Mashimo, T, Matthews, W, Mättig, P, McDonald, W J, McKenna, J A, McKigney, E A, McMahon, T J, McNab, A I, McPherson, R A, Meijers, F, Menke, S, Merritt, F S, Mes, H, Meyer, J, Michelini, Aldo, Mikenberg, G, Miller, D J, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Müller, U, Nagai, K, Nakamura, I, Neal, H A, Nellen, B, Nijjhar, B, Nisius, R, O'Neale, S W, Oakham, F G, Odorici, F, Ögren, H O, Oldershaw, N J, Omori, T, Oreglia, M J, Orito, S, Pálinkás, J, Pásztor, G, Pater, J R, Patrick, G N, Patt, J, Pearce, M J, Petzold, S, Pfeifenschneider, P, Pilcher, J E, Pinfold, J L, Plane, D E, Poffenberger, P R, Poli, B, Posthaus, A, Przysiezniak, H, Rees, D L, Rigby, D, Robertson, S, Robins, S A, Rodning, N L, Roney, J M, Rooke, A M, Ros, E, Rossi, A M, Rosvick, M, Routenburg, P, Rozen, Y, Runge, K, Runólfsson, O, Ruppel, U, Rust, D R, Rylko, R, Sachs, K, Sarkisyan-Grinbaum, E, Sasaki, M, Sbarra, C, Schaile, A D, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schmitt, B, Schmitt, S, Schröder, M, Schultz-Coulon, H C, Schulz, M, Schumacher, M, Schütz, P, Scott, W G, Shears, T G, Shen, B C, Shepherd-Themistocleous, C H, Sherwood, P, Siroli, G P, Sittler, A, Skillman, A, Skuja, A, Smith, A M, Smith, T J, Snow, G A, Sobie, Randall J, Söldner-Rembold, S, Springer, R W, Sproston, M, Stahl, A, Steiert, M, Stephens, K, Steuerer, J, Stockhausen, B, Strom, D, Strumia, F, Szymanski, P, Tafirout, R, Talbot, S D, Tanaka, S, Taras, P, Tarem, S, Thiergen, M, Thomson, M A, Von Törne, E, Towers, S, Trigger, I, Tsukamoto, T, Tsur, E, Turcot, A S, Turner-Watson, M F, Utzat, P, Van Kooten, R, Verzocchi, M, Vikas, P, Vincter, M G, Vokurka, E H, Wäckerle, F, Wagner, A, Ward, C P, Ward, D R, Ward, J J, Watkins, P M, Watson, A T, Watson, N K, Wells, P S, Wermes, N, White, J S, Wilkens, B, Wilson, G W, Wilson, J A, Wolf, G, Wotton, S A, Wyatt, T R, Yamashita, S, Yekutieli, G, and Zacek, V
Subjects: Particle Physics - Experiment
Published: 1996

235. Measurement of the mass of the W boson in $e^+ e^-$ collisions at $\sqrt{s}$ = 161 GeV

Author: Ackerstaff, K, Alexander, Gideon, Allison, J, Altekamp, N, Ametewee, K A, Anderson, K J, Anderson, S, Arcelli, S, Asai, S, Axen, D A, Azuelos, Georges, Ball, A H, Barberio, E, Barlow, R J, Bartoldus, R, Batley, J Richard, Bechtluft, J, Beeston, C, Behnke, T, Bell, A N, Bell, K W, Bella, G, Bentvelsen, Stanislaus Cornelius Maria, Berlich, P, Bethke, Siegfried, Biebel, O, Blobel, Volker, Bloodworth, Ian J, Bloomer, J E, Bobinski, M, Bock, P, Bosch, H M, Boutemeur, M, Bouwens, B T, Braibant, S, Brown, R M, Burckhart, Helfried J, Burgard, C, Bürgin, R, Capiluppi, P, Carnegie, R K, Carter, A A, Carter, J R, Chang, C Y, Charlton, D G, Chrisman, D, Clarke, P E L, Cohen, I, Conboy, J E, Cooke, O C, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, G M, De Jong, S, del Pozo, L A, Desch, Klaus, Dixit, M S, do Couto e Silva, E, Doucet, M, Duchovni, E, Duckeck, G, Duerdoth, I P, Edwards, J E G, Estabrooks, P G, Evans, H G, Evans, M, Fabbri, Franco Luigi, Fath, P, Fiedler, F, Fierro, M, Fischer, H M, Folman, R, Fong, D G, Foucher, M, Fürtjes, A, Gagnon, P, Gary, J W, Gascon, J, Gascon-Shotkin, S M, Geddes, N I, Geich-Gimbel, C, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, W R, Gingrich, D M, Glenzinski, D A, Goldberg, J, Goodrick, M J, Gorn, W, Grandi, C, Gross, E, Grunhaus, Jacob, Gruwé, M, Hajdu, C, Hanson, G G, Hansroul, M, Hapke, M, Hargrove, C K, Hart, P A, Hartmann, C, Hauschild, M, Hawkes, C M, Hawkings, R, Hemingway, Richard J, Herndon, M, Herten, G, Heuer, R D, Hildreth, M D, Hill, J C, Hillier, S J, Hilse, T, Hobson, P R, Homer, R James, Honma, A K, Horváth, D, Howard, R, Hughes-Jones, R E, Hutchcroft, D E, Igo-Kemenes, P, Imrie, D C, Ingram, M R, Ishii, K, Jawahery, A, Jeffreys, P W, Jeremie, H, Jimack, Martin Paul, Joly, A, Jones, C R, Jones, G, Jones, M, Jones, R W L, Jost, U, Jovanovic, P, Junk, T R, Karlen, D A, Kawagoe, K, Kawamoto, T, Keeler, Richard K, Kellogg, R G, Kennedy, B W, King, B J, Kirk, J, Kluth, S, Kobayashi, T, Kobel, M, Koetke, D S, Kokott, T P, Kolrep, M, Komamiya, S, Kress, T, Krieger, P, Von Krogh, J, Kyberd, P, Lafferty, G D, Lahmann, R, Lai, W P, Lanske, D, Lauber, J, Lautenschlager, S R, Layter, J G, Lazic, D, Lee, A M, Lefebvre, E, Lellouch, Daniel, Letts, J, Levinson, L, Lewis, C, Lloyd, S L, Loebinger, F K, Long, G D, Losty, Michael J, Ludwig, J, Mannelli, M, Marcellini, S, Markus, C, Martin, A J, Martin, J P, Martínez, G, Mashimo, T, Matthews, W, Mättig, P, McDonald, W J, McKenna, J A, McKigney, E A, McMahon, T J, McNab, A I, McPherson, R A, Meijers, F, Menke, S, Merritt, F S, Mes, H, Meyer, J, Michelini, Aldo, Mikenberg, G, Miller, D J, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Müller, U, Nagai, K, Nakamura, I, Neal, H A, Nellen, B, Nijjhar, B, Nisius, R, O'Neale, S W, Oakham, F G, Odorici, F, Ögren, H O, Oldershaw, N J, Omori, T, Oreglia, M J, Orito, S, Pálinkás, J, Pásztor, G, Pater, J R, Patrick, G N, Patt, J, Pearce, M J, Petzold, S, Pfeifenschneider, P, Pilcher, J E, Pinfold, J L, Plane, D E, Poffenberger, P R, Poli, B, Posthaus, A, Przysiezniak, H, Rees, D L, Rigby, D, Robertson, S, Robins, S A, Rodning, N L, Roney, J M, Rooke, A M, Ros, E, Rossi, A M, Rosvick, M, Routenburg, P, Rozen, Y, Runge, K, Runólfsson, O, Ruppel, U, Rust, D R, Rylko, R, Sachs, K, Sarkisyan-Grinbaum, E, Sasaki, M, Sbarra, C, Schaile, A D, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schmitt, B, Schmitt, S, Schröder, M, Schultz-Coulon, H C, Schulz, M, Schumacher, M, Schütz, P, Scott, W G, Shears, T G, Shen, B C, Shepherd-Themistocleous, C H, Sherwood, P, Siroli, G P, Sittler, A, Skillman, A, Skuja, A, Smith, A M, Smith, T J, Snow, G A, Sobie, Randall J, Söldner-Rembold, S, Springer, R W, Sproston, M, Stahl, A, Steiert, M, Stephens, K, Steuerer, J, Stockhausen, B, Strom, D, Strumia, F, Szymanski, P, Tafirout, R, Talbot, S D, Tanaka, S, Taras, P, Tarem, S, Thiergen, M, Thomson, M A, Von Törne, E, Towers, S, Trigger, I, Tsukamoto, T, Tsur, E, Turcot, A S, Turner-Watson, M F, Utzat, P, Van Kooten, R, Verzocchi, M, Vikas, P, Vincter, M G, Vokurka, E H, Wäckerle, F, Wagner, A, Ward, C P, Ward, D R, Ward, J J, Watkins, P M, Watson, A T, Watson, N K, Wells, P S, Wermes, N, White, J S, Wilkens, B, Wilson, G W, Wilson, J A, Wolf, G, Wotton, S A, Wyatt, T R, Yamashita, S, Yekutieli, G, and Zacek, V
Subjects: Particle Physics - Experiment
Published: 1996

236. Search for unstable neutral and charged heavy leptons in $e^+ e^-$ collisions at $\sqrt{s}$ = 161 GeV

Author: Ackerstaff, K, Alexander, Gideon, Allison, J, Altekamp, N, Ametewee, K A, Anderson, K J, Anderson, S, Arcelli, S, Asai, S, Axen, D A, Azuelos, Georges, Ball, A H, Barberio, E, Barlow, R J, Bartoldus, R, Batley, J Richard, Bechtluft, J, Beeston, C, Behnke, T, Bell, A N, Bell, K W, Bella, G, Bentvelsen, Stanislaus Cornelius Maria, Berlich, P, Bethke, Siegfried, Biebel, O, Blobel, Volker, Bloodworth, Ian J, Bloomer, J E, Bobinski, M, Bock, P, Bosch, H M, Boutemeur, M, Bouwens, B T, Braibant, S, Brown, R M, Burckhart, Helfried J, Burgard, C, Bürgin, R, Capiluppi, P, Carnegie, R K, Carter, A A, Carter, J R, Chang, C Y, Charlton, D G, Chrisman, D, Clarke, P E L, Cohen, I, Conboy, J E, Cooke, O C, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, G M, De Jong, S, del Pozo, L A, Desch, Klaus, Dixit, M S, do Couto e Silva, E, Doucet, M, Duchovni, E, Duckeck, G, Duerdoth, I P, Edwards, J E G, Estabrooks, P G, Evans, H G, Evans, M, Fabbri, Franco Luigi, Fath, P, Fiedler, F, Fierro, M, Fischer, H M, Folman, R, Fong, D G, Foucher, M, Fürtjes, A, Gagnon, P, Gary, J W, Gascon, J, Gascon-Shotkin, S M, Geddes, N I, Geich-Gimbel, C, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, W R, Gingrich, D M, Glenzinski, D A, Goldberg, J, Goodrick, M J, Gorn, W, Grandi, C, Gross, E, Grunhaus, Jacob, Gruwé, M, Hajdu, C, Hanson, G G, Hansroul, M, Hapke, M, Hargrove, C K, Hart, P A, Hartmann, C, Hauschild, M, Hawkes, C M, Hawkings, R, Hemingway, Richard J, Herndon, M, Herten, G, Heuer, R D, Hildreth, M D, Hill, J C, Hillier, S J, Hilse, T, Hobson, P R, Homer, R James, Honma, A K, Horváth, D, Howard, R, Hughes-Jones, R E, Hutchcroft, D E, Igo-Kemenes, P, Imrie, D C, Ingram, M R, Ishii, K, Jawahery, A, Jeffreys, P W, Jeremie, H, Jimack, Martin Paul, Joly, A, Jones, C R, Jones, G, Jones, M, Jones, R W L, Jost, U, Jovanovic, P, Junk, T R, Karlen, D A, Kawagoe, K, Kawamoto, T, Keeler, Richard K, Kellogg, R G, Kennedy, B W, King, B J, Kirk, J, Kluth, S, Kobayashi, T, Kobel, M, Koetke, D S, Kokott, T P, Kolrep, M, Komamiya, S, Kress, T, Krieger, P, Von Krogh, J, Kyberd, P, Lafferty, G D, Lahmann, R, Lai, W P, Lanske, D, Lauber, J, Lautenschlager, S R, Layter, J G, Lazic, D, Lee, A M, Lefebvre, E, Lellouch, Daniel, Letts, J, Levinson, L, Lewis, C, Lloyd, S L, Loebinger, F K, Long, G D, Losty, Michael J, Ludwig, J, Mannelli, M, Marcellini, S, Markus, C, Martin, A J, Martin, J P, Martínez, G, Mashimo, T, Matthews, W, Mättig, P, McDonald, W J, McKenna, J A, McKigney, E A, McMahon, T J, McNab, A I, McPherson, R A, Meijers, F, Menke, S, Merritt, F S, Mes, H, Meyer, J, Michelini, Aldo, Mikenberg, G, Miller, D J, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Müller, U, Nagai, K, Nakamura, I, Neal, H A, Nellen, B, Nijjhar, B, Nisius, R, O'Neale, S W, Oakham, F G, Odorici, F, Ögren, H O, Oldershaw, N J, Omori, T, Oreglia, M J, Orito, S, Pálinkás, J, Pásztor, G, Pater, J R, Patrick, G N, Patt, J, Pearce, M J, Petzold, S, Pfeifenschneider, P, Pilcher, J E, Pinfold, J L, Plane, D E, Poffenberger, P R, Poli, B, Posthaus, A, Przysiezniak, H, Rees, D L, Rigby, D, Robertson, S, Robins, S A, Rodning, N L, Roney, J M, Rooke, A M, Ros, E, Rossi, A M, Rosvick, M, Routenburg, P, Rozen, Y, Runge, K, Runólfsson, O, Ruppel, U, Rust, D R, Rylko, R, Sachs, K, Sarkisyan-Grinbaum, E, Sasaki, M, Sbarra, C, Schaile, A D, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schmitt, B, Schmitt, S, Schröder, M, Schultz-Coulon, H C, Schulz, M, Schumacher, M, Schütz, P, Scott, W G, Shears, T G, Shen, B C, Shepherd-Themistocleous, C H, Sherwood, P, Siroli, G P, Sittler, A, Skillman, A, Skuja, A, Smith, A M, Smith, T J, Snow, G A, Sobie, Randall J, Söldner-Rembold, S, Springer, R W, Sproston, M, Stahl, A, Steiert, M, Stephens, K, Steuerer, J, Stockhausen, B, Strom, D, Strumia, F, Szymanski, P, Tafirout, R, Talbot, S D, Tanaka, S, Taras, P, Tarem, S, Thiergen, M, Thomson, M A, Von Törne, E, Towers, S, Trigger, I, Tsukamoto, T, Tsur, E, Turcot, A S, Turner-Watson, M F, Utzat, P, Van Kooten, R, Verzocchi, M, Vikas, P, Vincter, M G, Vokurka, E H, Wäckerle, F, Wagner, A, Ward, C P, Ward, D R, Ward, J J, Watkins, P M, Watson, A T, Watson, N K, Wells, P S, Wermes, N, White, J S, Wilkens, B, Wilson, G W, Wilson, J A, Wolf, G, Wotton, S A, Wyatt, T R, Yamashita, S, Yekutieli, G, and Zacek, V
Subjects: Particle Physics - Experiment
Published: 1996

237. Search for chargino and neutralino production in $e^+ e^-$ collisions at $\sqrt{s}$ = 161 GeV

Author: Ackerstaff, K, Alexander, Gideon, Allison, J, Altekamp, N, Ametewee, K A, Anderson, K J, Anderson, S, Arcelli, S, Asai, S, Axen, D A, Azuelos, Georges, Ball, A H, Barberio, E, Barlow, R J, Bartoldus, R, Batley, J Richard, Bechtluft, J, Beeston, C, Behnke, T, Bell, A N, Bell, K W, Bella, G, Bentvelsen, Stanislaus Cornelius Maria, Berlich, P, Bethke, Siegfried, Biebel, O, Blobel, Volker, Bloodworth, Ian J, Bloomer, J E, Bobinski, M, Bock, P, Bosch, H M, Boutemeur, M, Bouwens, B T, Braibant, S, Brown, R M, Burckhart, Helfried J, Burgard, C, Bürgin, R, Capiluppi, P, Carnegie, R K, Carter, A A, Carter, J R, Chang, C Y, Charlton, D G, Chrisman, D, Clarke, P E L, Cohen, I, Conboy, J E, Cooke, O C, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, G M, De Jong, S, del Pozo, L A, Desch, Klaus, Dixit, M S, do Couto e Silva, E, Doucet, M, Duchovni, E, Duckeck, G, Duerdoth, I P, Edwards, J E G, Estabrooks, P G, Evans, H G, Evans, M, Fabbri, Franco Luigi, Fath, P, Fiedler, F, Fierro, M, Fischer, H M, Folman, R, Fong, D G, Foucher, M, Fürtjes, A, Gagnon, P, Gary, J W, Gascon, J, Gascon-Shotkin, S M, Geddes, N I, Geich-Gimbel, C, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, W R, Gingrich, D M, Glenzinski, D A, Goldberg, J, Goodrick, M J, Gorn, W, Grandi, C, Gross, E, Grunhaus, Jacob, Gruwé, M, Hajdu, C, Hanson, G G, Hansroul, M, Hapke, M, Hargrove, C K, Hart, P A, Hartmann, C, Hauschild, M, Hawkes, C M, Hawkings, R, Hemingway, Richard J, Herndon, M, Herten, G, Heuer, R D, Hildreth, M D, Hill, J C, Hillier, S J, Hilse, T, Hobson, P R, Homer, R James, Honma, A K, Horváth, D, Howard, R, Hughes-Jones, R E, Hutchcroft, D E, Igo-Kemenes, P, Imrie, D C, Ingram, M R, Ishii, K, Jawahery, A, Jeffreys, P W, Jeremie, H, Jimack, Martin Paul, Joly, A, Jones, C R, Jones, G, Jones, M, Jones, R W L, Jost, U, Jovanovic, P, Junk, T R, Karlen, D A, Kawagoe, K, Kawamoto, T, Keeler, Richard K, Kellogg, R G, Kennedy, B W, King, B J, Kirk, J, Kluth, S, Kobayashi, T, Kobel, M, Koetke, D S, Kokott, T P, Kolrep, M, Komamiya, S, Kress, T, Krieger, P, Von Krogh, J, Kyberd, P, Lafferty, G D, Lahmann, R, Lai, W P, Lanske, D, Lauber, J, Lautenschlager, S R, Layter, J G, Lazic, D, Lee, A M, Lefebvre, E, Lellouch, Daniel, Letts, J, Levinson, L, Lewis, C, Lloyd, S L, Loebinger, F K, Long, G D, Losty, Michael J, Ludwig, J, Mannelli, M, Marcellini, S, Markus, C, Martin, A J, Martin, J P, Martínez, G, Mashimo, T, Matthews, W, Mättig, P, McDonald, W J, McKenna, J A, McKigney, E A, McMahon, T J, McNab, A I, McPherson, R A, Meijers, F, Menke, S, Merritt, F S, Mes, H, Meyer, J, Michelini, Aldo, Mikenberg, G, Miller, D J, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Müller, U, Nagai, K, Nakamura, I, Neal, H A, Nellen, B, Nijjhar, B, Nisius, R, O'Neale, S W, Oakham, F G, Odorici, F, Ögren, H O, Oldershaw, N J, Omori, T, Oreglia, M J, Orito, S, Pálinkás, J, Pásztor, G, Pater, J R, Patrick, G N, Patt, J, Pearce, M J, Petzold, S, Pfeifenschneider, P, Pilcher, J E, Pinfold, J L, Plane, D E, Poffenberger, P R, Poli, B, Posthaus, A, Przysiezniak, H, Rees, D L, Rigby, D, Robertson, S, Robins, S A, Rodning, N L, Roney, J M, Rooke, A M, Ros, E, Rossi, A M, Rosvick, M, Routenburg, P, Rozen, Y, Runge, K, Runólfsson, O, Ruppel, U, Rust, D R, Rylko, R, Sachs, K, Sarkisyan-Grinbaum, E, Sasaki, M, Sbarra, C, Schaile, A D, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schmitt, B, Schmitt, S, Schröder, M, Schultz-Coulon, H C, Schulz, M, Schumacher, M, Schütz, P, Scott, W G, Shears, T G, Shen, B C, Shepherd-Themistocleous, C H, Sherwood, P, Siroli, G P, Sittler, A, Skillman, A, Skuja, A, Smith, A M, Smith, T J, Snow, G A, Sobie, Randall J, Söldner-Rembold, S, Springer, R W, Sproston, M, Stahl, A, Steiert, M, Stephens, K, Steuerer, J, Stockhausen, B, Strom, D, Strumia, F, Szymanski, P, Tafirout, R, Talbot, S D, Tanaka, S, Taras, P, Tarem, S, Thiergen, M, Thomson, M A, Von Törne, E, Towers, S, Trigger, I, Tsukamoto, T, Tsur, E, Turcot, A S, Turner-Watson, M F, Utzat, P, Van Kooten, R, Verzocchi, M, Vikas, P, Vincter, M G, Vokurka, E H, Wäckerle, F, Wagner, A, Ward, C P, Ward, D R, Ward, J J, Watkins, P M, Watson, A T, Watson, N K, Wells, P S, Wermes, N, White, J S, Wilkens, B, Wilson, G W, Wilson, J A, Wolf, G, Wotton, S A, Wyatt, T R, Yamashita, S, Yekutieli, G, and Zacek, V
Subjects: Particle Physics - Experiment
Published: 1996

238. Measurement of the branching fraction of the radiative decay $\tau^- \rightarrow \mu^- \overline\nu_{\mu}\nu_{\tau}\gamma$

Author: Alexander, Gideon, Allison, J, Altekamp, N, Ametewee, K A, Anderson, K J, Anderson, S, Arcelli, S, Asai, S, Axen, D A, Azuelos, Georges, Ball, A H, Barberio, E, Barlow, R J, Bartoldus, R, Batley, J Richard, Bechtluft, J, Beeston, C, Behnke, T, Bell, A N, Bell, K W, Bella, G, Bentvelsen, Stanislaus Cornelius Maria, Berlich, P, Bethke, Siegfried, Biebel, O, Blobel, Volker, Bloodworth, Ian J, Bloomer, J E, Bobinski, M, Bock, P, Bosch, H M, Boutemeur, M, Bouwens, B T, Braibant, S, Brown, R M, Burckhart, Helfried J, Burgard, C, Bürgin, R, Capiluppi, P, Carnegie, R K, Carter, A A, Carter, J R, Chang, C Y, Charlesworth, C, Charlton, D G, Chrisman, D, Chu, S L, Clarke, P E L, Cohen, I, Conboy, J E, Cooke, O C, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, G M, De Jong, S, del Pozo, L A, Desch, Klaus, Dixit, M S, do Couto e Silva, E, Doucet, M, Duchovni, E, Duckeck, G, Duerdoth, I P, Edwards, J E G, Estabrooks, P G, Evans, H G, Evans, M, Fabbri, Franco Luigi, Fath, P, Fiedler, F, Fierro, M, Fischer, H M, Folman, R, Fong, D G, Foucher, M, Fürtjes, A, Gagnon, P, Gaidot, A, Gary, J W, Gascon, J, Gascon-Shotkin, S M, Geddes, N I, Geich-Gimbel, C, Gentit, F X, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, W R, Gingrich, D M, Glenzinski, D A, Goldberg, J, Goodrick, M J, Gorn, W, Grandi, C, Gross, E, Gruwé, M, Hajdu, C, Hanson, G G, Hansroul, M, Hapke, M, Hargrove, C K, Hart, P A, Hartmann, C, Hauschild, M, Hawkes, C M, Hawkings, R, Hemingway, Richard J, Herten, G, Heuer, R D, Hildreth, M D, Hill, J C, Hillier, S J, Hilse, T, Hobson, P R, Homer, R James, Honma, A K, Horváth, D, Howard, R, Hughes-Jones, R E, Hutchcroft, D E, Igo-Kemenes, P, Imrie, D C, Ingram, M R, Ishii, K, Jawahery, A, Jeffreys, P W, Jeremie, H, Jimack, Martin Paul, Joly, A, Jones, C R, Jones, G, Jones, M, Jones, R W L, Jost, U, Jovanovic, P, Junk, T R, Karlen, D A, Kawagoe, K, Kawamoto, T, Keeler, Richard K, Kellogg, R G, Kennedy, B W, King, B J, Kirk, J, Kluth, S, Kobayashi, T, Kobel, M, Koetke, D S, Kokott, T P, Kolrep, M, Komamiya, S, Kowalewski, R V, Kress, T, Krieger, P, Von Krogh, J, Kyberd, P, Lafferty, G D, Lafoux, H, Lahmann, R, Lai, W P, Lanske, D, Lauber, J, Lautenschlager, S R, Layter, J G, Lazic, D, Lee, A M, Lefebvre, E, Lellouch, Daniel, Letts, J, Levinson, L, Lewis, C, Lloyd, S L, Loebinger, F K, Long, G D, Losty, Michael J, Ludwig, J, Malik, A, Mannelli, M, Marcellini, S, Markus, C, Martin, A J, Martin, J P, Martínez, G, Mashimo, T, Matthews, W, Mättig, P, McDonald, W J, McKenna, J A, McKigney, E A, McMahon, T J, McNab, A I, McPherson, R A, Meijers, F, Menke, S, Merritt, F S, Mes, H, Meyer, J, Michelini, Aldo, Mikenberg, G, Miller, D J, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Müller, U, Nagai, K, Nakamura, I, Neal, H A, Nellen, B, Nijjhar, B, Nisius, R, O'Neale, S W, Oakham, F G, Odorici, F, Ögren, H O, Omori, T, Oreglia, M J, Orito, S, Pálinkás, J, Pásztor, G, Pater, J R, Patrick, G N, Patt, J, Pearce, M J, Petzold, S, Pfeifenschneider, P, Pilcher, J E, Pinfold, J L, Plane, D E, Poffenberger, P R, Poli, B, Posthaus, A, Przysiezniak, H, Rees, D L, Rigby, D, Robins, S A, Rodning, N L, Roney, J M, Rooke, A M, Ros, E, Rossi, A M, Rosvick, M, Routenburg, P, Rozen, Y, Runge, K, Runólfsson, O, Ruppel, U, Rust, D R, Rylko, R, Sachs, K, Sarkisyan-Grinbaum, E, Sasaki, M, Sbarra, C, Schaile, A D, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schmitt, B, Schmitt, S, Schröder, M, Schultz-Coulon, H C, Schulz, M, Schumacher, M, Schütz, P, Scott, W G, Shears, T G, Shen, B C, Shepherd-Themistocleous, C H, Sherwood, P, Siroli, G P, Sittler, A, Skillman, A, Skuja, A, Smith, A M, Smith, T J, Snow, G A, Sobie, Randall J, Söldner-Rembold, S, Springer, R W, Sproston, M, Stahl, A, Starks, M, Steiert, M, Stephens, K, Steuerer, J, Stockhausen, B, Strom, D, Strumia, F, Szymanski, P, Tafirout, R, Talbot, S D, Tanaka, S, Taras, P, Tarem, S, Tecchio, M, Thiergen, M, Thomson, M A, Von Törne, E, Towers, S, Tsukamoto, T, Tsur, E, Turcot, A S, Turner-Watson, M F, Utzat, P, Van Kooten, R, Vasseur, G, Verzocchi, M, Vikas, P, Vincter, M G, Vokurka, E H, Voss, H H, Wäckerle, F, Wagner, A, Ward, C P, Ward, D R, Ward, J J, Watkins, P M, Watson, A T, Watson, N K, Weber, P, Wells, P S, Wermes, N, White, J S, Wilkens, B, Wilson, G W, Wilson, J A, Wolf, G, Wotton, S A, Wyatt, T R, Yamashita, S, Yekutieli, G, and Zacek, V
Subjects: Particle Physics - Experiment
Published: 1996

239. Search for excited leptons in $e^+ e^-$ collisions at $\sqrt{s}$ = 130 and 136 GeV

Author: Alexander, Gideon, Allison, J, Altekamp, N, Ametewee, K A, Anderson, K J, Anderson, S, Arcelli, S, Asai, S, Axen, D A, Azuelos, Georges, Ball, A H, Barberio, E, Barlow, R J, Bartoldus, R, Batley, J Richard, Bechtluft, J, Beeston, C, Behnke, T, Bell, A N, Bell, K W, Bella, G, Bentvelsen, Stanislaus Cornelius Maria, Berlich, P, Bethke, Siegfried, Biebel, O, Blobel, Volker, Bloodworth, Ian J, Bloomer, J E, Bobinski, M, Bock, P, Bosch, H M, Boutemeur, M, Bouwens, B T, Braibant, S, Brown, R M, Burckhart, Helfried J, Burgard, C, Bürgin, R, Capiluppi, P, Carnegie, R K, Carter, A A, Carter, J R, Chang, C Y, Charlesworth, C, Charlton, D G, Chrisman, D, Chu, S L, Clarke, P E L, Cohen, I, Conboy, J E, Cooke, O C, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, G M, De Jong, S, del Pozo, L A, Desch, Klaus, Dixit, M S, do Couto e Silva, E, Doucet, M, Duchovni, E, Duckeck, G, Duerdoth, I P, Edwards, J E G, Estabrooks, P G, Evans, H G, Evans, M, Fabbri, Franco Luigi, Fath, P, Fiedler, F, Fierro, M, Fischer, H M, Folman, R, Fong, D G, Foucher, M, Fürtjes, A, Gagnon, P, Gaidot, A, Gary, J W, Gascon, J, Gascon-Shotkin, S M, Geddes, N I, Geich-Gimbel, C, Gentit, F X, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, W R, Gingrich, D M, Glenzinski, D A, Goldberg, J, Goodrick, M J, Gorn, W, Grandi, C, Gross, E, Gruwé, M, Hajdu, C, Hanson, G G, Hansroul, M, Hapke, M, Hargrove, C K, Hart, P A, Hartmann, C, Hauschild, M, Hawkes, C M, Hawkings, R, Hemingway, Richard J, Herten, G, Heuer, R D, Hildreth, M D, Hill, J C, Hillier, S J, Hilse, T, Hobson, P R, Homer, R James, Honma, A K, Horváth, D, Howard, R, Hughes-Jones, R E, Hutchcroft, D E, Igo-Kemenes, P, Imrie, D C, Ingram, M R, Ishii, K, Jawahery, A, Jeffreys, P W, Jeremie, H, Jimack, Martin Paul, Joly, A, Jones, C R, Jones, G, Jones, M, Jones, R W L, Jost, U, Jovanovic, P, Junk, T R, Karlen, D A, Kawagoe, K, Kawamoto, T, Keeler, Richard K, Kellogg, R G, Kennedy, B W, King, B J, Kirk, J, Kluth, S, Kobayashi, T, Kobel, M, Koetke, D S, Kokott, T P, Komamiya, S, Kowalewski, R V, Kress, T, Krieger, P, Von Krogh, J, Kyberd, P, Lafferty, G D, Lafoux, H, Lahmann, R, Lai, W P, Lanske, D, Lauber, J, Lautenschlager, S R, Layter, J G, Lazic, D, Lee, A M, Lefebvre, E, Lellouch, Daniel, Letts, J, Levinson, L, Lewis, C, Lloyd, S L, Loebinger, F K, Long, G D, Losty, Michael J, Ludwig, J, Luig, A, Malik, A, Mannelli, M, Marcellini, S, Markus, C, Martin, A J, Martin, J P, Martínez, G, Mashimo, T, Matthews, W, Mättig, P, McDonald, W J, McKenna, J A, McKigney, E A, McMahon, T J, McNab, A I, McPherson, R A, Meijers, F, Menke, S, Merritt, F S, Mes, H, Meyer, J, Michelini, Aldo, Mikenberg, G, Miller, D J, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Müller, U, Nagai, K, Nakamura, I, Neal, H A, Nellen, B, Nijjhar, B, Nisius, R, O'Neale, S W, Oakham, F G, Odorici, F, Ögren, H O, Omori, T, Oreglia, M J, Orito, S, Pálinkás, J, Pásztor, G, Pater, J R, Patrick, G N, Patt, J, Pearce, M J, Petzold, S, Pfeifenschneider, P, Pilcher, J E, Pinfold, J L, Plane, D E, Poffenberger, P R, Poli, B, Posthaus, A, Przysiezniak, H, Rees, D L, Rigby, D, Robins, S A, Rodning, N L, Roney, J M, Rooke, A M, Ros, E, Rossi, A M, Rosvick, M, Routenburg, P, Rozen, Y, Runge, K, Runólfsson, O, Ruppel, U, Rust, D R, Rylko, R, Sachs, K, Sarkisyan-Grinbaum, E, Sasaki, M, Sbarra, C, Schaile, A D, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schmitt, B, Schmitt, S, Schröder, M, Schultz-Coulon, H C, Schulz, M, Schumacher, M, Schütz, P, Scott, W G, Shears, T G, Shen, B C, Shepherd-Themistocleous, C H, Sherwood, P, Siroli, G P, Sittler, A, Skillman, A, Skuja, A, Smith, A M, Smith, T J, Snow, G A, Sobie, Randall J, Söldner-Rembold, S, Springer, R W, Sproston, M, Stahl, A, Starks, M, Steiert, M, Stephens, K, Steuerer, J, Stockhausen, B, Strom, D, Strumia, F, Szymanski, P, Tafirout, R, Talbot, S D, Tanaka, S, Taras, P, Tarem, S, Tecchio, M, Thiergen, M, Thomson, M A, Von Törne, E, Towers, S, Tsukamoto, T, Tsur, E, Turcot, A S, Turner-Watson, M F, Utzat, P, Van Kooten, R, Vasseur, G, Verzocchi, M, Vikas, P, Vincter, M G, Vokurka, E H, Wäckerle, F, Wagner, A, Ward, C P, Ward, D R, Ward, J J, Watkins, P M, Watson, A T, Watson, N K, Weber, P, Wells, P S, Wermes, N, White, J S, Wilkens, B, Wilson, G W, Wilson, J A, Wolf, G, Wotton, S A, Wyatt, T R, Yamashita, S, Yekutieli, G, and Zacek, V
Subjects: Particle Physics - Experiment
Published: 1996

240. A First Measurement of the $\Lambda\overline{\Lambda}$ and $\Lambda\Lambda (\overline{\Lambda} \overline{\Lambda})$ Spin Compositions in Hadronic $Z^{0}$ Decays

Author: Alexander, Gideon, Allison, J, Altekamp, N, Ametewee, K A, Anderson, K J, Anderson, S, Arcelli, S, Asai, S, Axen, D A, Azuelos, Georges, Ball, A H, Barberio, E, Barlow, R J, Bartoldus, R, Batley, J Richard, Beaudoin, G, Bechtluft, J, Beeston, C, Behnke, T, Bell, A N, Bell, K W, Bella, G, Bentvelsen, Stanislaus Cornelius Maria, Berlich, P, Bethke, Siegfried, Biebel, O, Blobel, Volker, Bloodworth, Ian J, Bloomer, J E, Bock, P, Bosch, H M, Boutemeur, M, Bouwens, B T, Braibant, S, Brown, R M, Burckhart, Helfried J, Burgard, C, Bürgin, R, Capiluppi, P, Carnegie, R K, Carter, A A, Carter, J R, Chang, C Y, Charlesworth, C, Charlton, D G, Chrisman, D, Chu, S L, Clarke, P E L, Cohen, I, Conboy, J E, Cooke, O C, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, G M, De Jong, S, del Pozo, L A, Desch, Klaus, Dixit, M S, do Couto e Silva, E, Doucet, M, Duchovni, E, Duckeck, G, Duerdoth, I P, Edwards, J E G, Estabrooks, P G, Evans, H G, Evans, M, Fabbri, Franco Luigi, Fath, P, Fiedler, F, Fierro, M, Fischer, H M, Folman, R, Fong, D G, Foucher, M, Fukui, H, Fürtjes, A, Gagnon, P, Gaidot, A, Gary, J W, Gascon, J, Gascon-Shotkin, S M, Geddes, N I, Geich-Gimbel, C, Gentit, F X, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, W R, Gingrich, D M, Goldberg, J, Goodrick, M J, Gorn, W, Grandi, C, Gross, E, Gruwé, M, Hajdu, C, Hanson, G G, Hansroul, M, Hapke, M, Hargrove, C K, Hart, P A, Hartmann, C, Hauschild, M, Hawkes, C M, Hawkings, R, Hemingway, Richard J, Herten, G, Heuer, R D, Hildreth, M D, Hill, J C, Hillier, S J, Hilse, T, Hoare, J, Hobson, P R, Homer, R James, Honma, A K, Horváth, D, Howard, R, Hughes-Jones, R E, Hutchcroft, D E, Igo-Kemenes, P, Imrie, D C, Ingram, M R, Jawahery, A, Jeffreys, P W, Jeremie, H, Jimack, Martin Paul, Joly, A, Jones, C R, Jones, G, Jones, M, Jones, R W L, Jost, U, Jovanovic, P, Junk, T R, Karlen, D A, Kawagoe, K, Kawamoto, T, Keeler, Richard K, Kellogg, R G, Kennedy, B W, King, B J, Kirk, J, Kluth, S, Kobayashi, T, Kobel, M, Koetke, D S, Kokott, T P, Komamiya, S, Kowalewski, R V, Kress, T, Krieger, P, Von Krogh, J, Kyberd, P, Lafferty, G D, Lafoux, H, Lahmann, R, Lai, W P, Lanske, D, Lauber, J, Lautenschlager, S R, Layter, J G, Lazic, D, Lee, A M, Lefebvre, E, Lellouch, Daniel, Letts, J, Levinson, L, Lewis, C, Lloyd, S L, Loebinger, F K, Long, G D, Losty, Michael J, Ludwig, J, Luig, A, Malik, A, Mannelli, M, Marcellini, S, Markus, C, Martin, A J, Martin, J P, Martínez, G, Mashimo, T, Matthews, W, Mättig, P, McDonald, W J, McKenna, J A, McKigney, E A, McMahon, T J, McNab, A I, McPherson, R A, Meijers, F, Menke, S, Merritt, F S, Mes, H, Meyer, J, Michelini, Aldo, Mikenberg, G, Miller, D J, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Müller, U, Neal, H A, Nellen, B, Nijjhar, B, Nisius, R, O'Neale, S W, Oakham, F G, Odorici, F, Ögren, H O, Omori, T, Oreglia, M J, Orito, S, Pálinkás, J, Pansart, J P, Pásztor, G, Pater, J R, Patrick, G N, Pearce, M J, Petzold, S, Pfeifenschneider, P, Pilcher, J E, Pinfold, J L, Plane, D E, Poffenberger, P R, Poli, B, Posthaus, A, Przysiezniak, H, Rees, D L, Rigby, D, Robins, S A, Rodning, N L, Roney, J M, Rooke, A M, Ros, E, Rossi, A M, Rosvick, M, Routenburg, P, Rozen, Y, Runge, K, Runólfsson, O, Ruppel, U, Rust, D R, Rylko, R, Sarkisyan-Grinbaum, E, Sasaki, M, Sbarra, C, Schaile, A D, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schmitt, B, Schmitt, S, Schröder, M, Schultz-Coulon, H C, Schulz, M, Schütz, P, Scott, W G, Shears, T G, Shen, B C, Shepherd-Themistocleous, C H, Sherwood, P, Siroli, G P, Sittler, A, Skillman, A, Skuja, A, Smith, A M, Smith, T J, Snow, G A, Sobie, Randall J, Söldner-Rembold, S, Springer, R W, Sproston, M, Stahl, A, Starks, M, Steiert, M, Stephens, K, Steuerer, J, Stockhausen, B, Strom, D, Strumia, F, Szymanski, P, Tafirout, R, Talbot, S D, Tanaka, S, Taras, P, Tarem, S, Tecchio, M, Thiergen, M, Thomson, M A, Von Törne, E, Towers, S, Tscheulin, M, Tsukamoto, T, Tsur, E, Turcot, A S, Turner-Watson, M F, Utzat, P, Van Kooten, R, Vasseur, G, Verzocchi, M, Vikas, P, Vincter, M G, Vokurka, E H, Wäckerle, F, Wagner, A, Ward, C P, Ward, D R, Ward, J J, Watkins, P M, Watson, A T, Watson, N K, Weber, P, Wells, P S, Wermes, N, White, J S, Wilkens, B, Wilson, G W, Wilson, J A, Wlodek, T, Wolf, G, Wotton, S A, Wyatt, T R, Yamashita, S, Yekutieli, G, and Zacek, V
Subjects: Particle Physics - Experiment
Published: 1996

241. Prompt $J/\psi$ Production in Hadronic $Z^{0}$ Decays

Author: Alexander, G., Allison, J., Altekamp, N., Ametewee, K., Anderson, Kj, Anderson, S., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Ball, Ah, Barberio, E., Barlow, Rj, Bartoldus, R., Batley, Jr, Beaudoin, G., Bechtluft, J., Beeston, C., Behnke, T., Bell, An, Bell, Kw, Bella, G., Bentvelsen, S., Berlich, P., Bethke, S., Biebel, O., Blobel, V., Bloodworth, Ij, Bloomer, Je, Bock, P., Bosch, Hm, Boutemeur, M., Bouwens, Bt, Braibant, S., Brown, Rm, Burckhart, Hj, Burgard, C., Burgin, R., Capiluppi, P., Carnegie, Rk, Carter, Aa, Carter, Jr, Chang, Cy, Charlesworth, C., Charlton, Dg, Chrisman, D., Chu, Sl, Clarke, Pel, Cohen, I., Conboy, Je, Cooke, Oc, Cuffiani, M., Dado, S., Dallapiccola, C., Dallavalle, Gm, Dejong, S., Delpozo, La, Desch, K., Dixit, Ms, Silva, Edce, Mathieu Doucet, Duchovni, E., Duckeck, G., Duerdoth, Ip, Edwards, Jeg, Estabrooks, Pg, Evans, Hg, Evans, M., Fabbri, F., Fath, P., Fiedler, F., Fierro, M., Fischer, Hm, Folman, R., Fong, Dg, Foucher, M., Fukui, H., Furtjes, A., Gagnon, P., Gaidot, A., Gary, Jw, Gascon, J., Gasconshotkin, Sm, Geddes, Ni, Geichgimbel, C., Gentit, Fx, Geralis, T., Giacomelli, G., Giacomelli, P., Giacomelli, R., Gibson, V., Gibson, Wr, Gingrich, Dm, Goldberg, J., Goodrick, Mj, Gorn, W., Grandi, C., Gross, E., Gruwe, M., Hajdu, C., Hanson, Gg, Hansroul, M., Hapke, M., Hargrove, Ck, Hart, Pa, Hartmann, C., Hauschild, M., Hawkes, Cm, Hawkings, R., Hemingway, Rj, Herten, G., Heuer, Rd, Hildreth, Md, Hill, Jc, Hillier, Sj, Hilse, T., Hoare, J., Hobson, Pr, Homer, Rj, Honma, Ak, Horvath, D., Howard, R., Hughesjones, Re, HUTCHCROFT, DE, Igokemenes, P., Imrie, Dc, INGRAM, MR, Jawahery, A., Jeffreys, Pw, Jeremie, H., Jimack, M., Joly, A., Jones, Cr, Jones, G., Jones, M., Jones, Rwi, Jost, U., Jovanovic, P., Junk, Tr, Karlen, D., Kawagoe, K., Kawamoto, T., Keeler, Rk, Kellogg, Rg, Kennedy, Bw, King, Bj, Kirk, J., Kluth, S., Kobayashi, T., Kobel, M., Koetke, Ds, Kokott, Tp, Komamiya, S., Kowalewski, R., Kress, T., Krieger, P., Vonkrogh, J., Kyberd, P., Lafferty, Gd, Lafoux, H., Lahmann, R., Lai, Wp, Lanske, D., Lauber, J., Lautenschlager, Sr, Layter, Jg, Lazic, D., Lee, Am, Lefebvre, E., Lellouch, D., Letts, J., Levinson, L., Lewis, C., Lloyd, Sl, Loebinger, Fk, Long, Gd, Losty, Mj, Ludwig, J., Luig, A., Malik, A., Mannelli, M., Marcellini, S., Markus, C., Martin, Aj, Martin, Jp, Martinez, G., Mashimo, T., Matthews, W., Mattig, P., Mcdonald, Wj, Mckenna, J., Mckigney, Ea, Mcmahon, Tj, Mcnab, Ai, Mcpherson, Ra, Meijers, F., Menke, S., Merritt, Fs, Mes, H., Meyer, J., Michelini, A., Mikenberg, G., Miller, Dj, Mir, R., Mohr, W., Montanari, A., Mori, T., Morii, M., Muller, U., Neal, Ha, Nellen, B., Nijjhar, B., Nisius, R., Oneale, Sw, Oakham, Fg, Odorici, F., Ogren, Ho, Omori, T., Oreglia, Mj, Orito, S., Palinkas, J., Pansart, Jp, Pasztor, G., Pater, Jr, Patrick, Gn, Pearce, Mj, Petzold, S., Pfeifenschneider, P., Pilcher, Je, Pinfold, J., PLANE, DE, Poffenberger, P., Poli, B., Posthaus, A., Przysiezniak, H., Rees, Dl, Rigby, D., Robins, Sa, Rodning, N., Roney, Jm, Rooke, A., Ros, E., Rossi, Am, Rosvick, M., Routenburg, P., Rozen, Y., Runge, K., Runolfsson, O., Ruppel, U., Rust, Dr, Rylko, R., Sarkisyan, Ekg, Sasaki, M., Sbarra, C., Schaile, Ad, Schaile, O., Scharf, F., Scharffhansen, P., Schenk, P., Schmitt, B., Schmitt, S., Schroder, M., Schultzcoulon, Hc, Schulz, M., Schutz, P., Scott, Wg, Shears, Tg, Shen, Bc, Shepherdthemistocleous, Ch, Sherwood, P., Siroli, Gp, Sittler, A., Skillman, A., Skuja, A., Smith, Am, Smith, Tj, Snow, Ga, Sobie, R., Soldnerrembold, S., Springer, Rw, Sproston, M., Stahl, A., Starks, M., Steiert, M., Stephens, K., Steuerer, J., Stockhausen, B., Strom, D., Strumia, F., Szymanski, P., Tafirout, R., Talbot, Sd, Tanaka, S., Taras, P., Tarem, S., Tecchio, M., Thiergen, M., Thomson, Ma, Vontorne, E., Towers, S., Tscheulin, M., Tsukamoto, T., Tsur, E., Turcot, As, Turnerwatson, Mf, Utzat, P., Vankooten, R., Vasseur, G., Verzocchi, M., Vikas, P., Vincter, M., Vokurka, Eh, Wackerle, F., Wagner, A., Ward, Cp, Ward, Dr, Ward, Jj, Watkins, Pm, Watson, At, Watson, Nk, Weber, P., Wells, Ps, Wermes, N., White, Js, Wilkens, B., Wilson, Gw, Wilson, Ja, Wlodek, T., Wolf, G., Wotton, S., Wyatt, Tr, Yamashita, S., Yekutieli, G., and Zacek, V.
Subjects: Particle Physics - Experiment
Published: 1996

242. A Study of charm Hadron Production in $Z^{0} \to c\overline{c}$ and $Z^{0} \to b\overline{b}$ Decays at LEP

Author: Alexander, Gideon, Allison, J, Altekamp, N, Ametewee, K A, Anderson, K J, Anderson, S, Arcelli, S, Asai, S, Axen, D A, Azuelos, Georges, Ball, A H, Barberio, E, Barlow, R J, Bartoldus, R, Batley, J Richard, Beaudoin, G, Bechtluft, J, Beeston, C, Behnke, T, Bell, A N, Bell, K W, Bella, G, Bentvelsen, Stanislaus Cornelius Maria, Berlich, P, Bethke, Siegfried, Biebel, O, Blobel, Volker, Bloodworth, Ian J, Bloomer, J E, Bock, P, Bosch, H M, Boutemeur, M, Bouwens, B T, Braibant, S, Brown, R M, Burckhart, Helfried J, Burgard, C, Bürgin, R, Capiluppi, P, Carnegie, R K, Carter, A A, Carter, J R, Chang, C Y, Charlesworth, C, Charlton, D G, Chrisman, D, Chu, S L, Clarke, P E L, Cohen, I, Conboy, J E, Cooke, O C, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, G M, De Jong, S, del Pozo, L A, Desch, Klaus, Dixit, M S, do Couto e Silva, E, Doucet, M, Duchovni, E, Duckeck, G, Duerdoth, I P, Edwards, J E G, Estabrooks, P G, Evans, H G, Evans, M, Fabbri, Franco Luigi, Fath, P, Fiedler, F, Fierro, M, Fischer, H M, Folman, R, Fong, D G, Foucher, M, Fukui, H, Fürtjes, A, Gagnon, P, Gaidot, A, Gary, J W, Gascon, J, Gascon-Shotkin, S M, Geddes, N I, Geich-Gimbel, C, Gentit, F X, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, W R, Gingrich, D M, Goldberg, J, Goodrick, M J, Gorn, W, Grandi, C, Gross, E, Gruwé, M, Hajdu, C, Hanson, G G, Hansroul, M, Hapke, M, Hargrove, C K, Hart, P A, Hartmann, C, Hauschild, M, Hawkes, C M, Hawkings, R, Hemingway, Richard J, Herten, G, Heuer, R D, Hildreth, M D, Hill, J C, Hillier, S J, Hilse, T, Hoare, J, Hobson, P R, Homer, R James, Honma, A K, Horváth, D, Howard, R, Hughes-Jones, R E, Hutchcroft, D E, Igo-Kemenes, P, Imrie, D C, Ingram, M R, Jawahery, A, Jeffreys, P W, Jeremie, H, Jimack, Martin Paul, Joly, A, Jones, C R, Jones, G, Jones, M, Jones, R W L, Jost, U, Jovanovic, P, Junk, T R, Karlen, D A, Kawagoe, K, Kawamoto, T, Keeler, Richard K, Kellogg, R G, Kennedy, B W, King, B J, Kirk, J, Kluth, S, Kobayashi, T, Kobel, M, Koetke, D S, Kokott, T P, Komamiya, S, Kowalewski, R V, Kress, T, Krieger, P, Von Krogh, J, Kyberd, P, Lafferty, G D, Lafoux, H, Lahmann, R, Lai, W P, Lanske, D, Lauber, J, Lautenschlager, S R, Layter, J G, Lazic, D, Lee, A M, Lefebvre, E, Lellouch, Daniel, Letts, J, Levinson, L, Lewis, C, Lloyd, S L, Loebinger, F K, Long, G D, Losty, Michael J, Ludwig, J, Luig, A, Malik, A, Mannelli, M, Marcellini, S, Markus, C, Martin, A J, Martin, J P, Martínez, G, Mashimo, T, Matthews, W, Mättig, P, McDonald, W J, McKenna, J A, McKigney, E A, McMahon, T J, McNab, A I, McPherson, R A, Meijers, F, Menke, S, Merritt, F S, Mes, H, Meyer, J, Michelini, Aldo, Mikenberg, G, Miller, D J, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Müller, U, Neal, H A, Nellen, B, Nijjhar, B, Nisius, R, O'Neale, S W, Oakham, F G, Odorici, F, Ögren, H O, Omori, T, Oreglia, M J, Orito, S, Pálinkás, J, Pansart, J P, Pásztor, G, Pater, J R, Patrick, G N, Pearce, M J, Petzold, S, Pfeifenschneider, P, Pilcher, J E, Pinfold, J L, Plane, D E, Poffenberger, P R, Poli, B, Posthaus, A, Przysiezniak, H, Rees, D L, Rigby, D, Robins, S A, Rodning, N L, Roney, J M, Rooke, A M, Ros, E, Rossi, A M, Rosvick, M, Routenburg, P, Rozen, Y, Runge, K, Runólfsson, O, Ruppel, U, Rust, D R, Rylko, R, Sarkisyan-Grinbaum, E, Sasaki, M, Sbarra, C, Schaile, A D, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schmitt, B, Schmitt, S, Schröder, M, Schultz-Coulon, H C, Schulz, M, Schütz, P, Scott, W G, Shears, T G, Shen, B C, Shepherd-Themistocleous, C H, Sherwood, P, Siroli, G P, Sittler, A, Skillman, A, Skuja, A, Smith, A M, Smith, T J, Snow, G A, Sobie, Randall J, Söldner-Rembold, S, Springer, R W, Sproston, M, Stahl, A, Starks, M, Steiert, M, Stephens, K, Steuerer, J, Stockhausen, B, Strom, D, Strumia, F, Szymanski, P, Tafirout, R, Talbot, S D, Tanaka, S, Taras, P, Tarem, S, Tecchio, M, Thiergen, M, Thomson, M A, Von Törne, E, Towers, S, Tscheulin, M, Tsukamoto, T, Tsur, E, Turcot, A S, Turner-Watson, M F, Utzat, P, Van Kooten, R, Vasseur, G, Verzocchi, M, Vikas, P, Vincter, M G, Vokurka, E H, Wäckerle, F, Wagner, A, Ward, C P, Ward, D R, Ward, J J, Watkins, P M, Watson, A T, Watson, N K, Weber, P, Wells, P S, Wermes, N, White, J S, Wilkens, B, Wilson, G W, Wilson, J A, Wlodek, T, Wolf, G, Wotton, S A, Wyatt, T R, Yamashita, S, Yekutieli, G, and Zacek, V
Subjects: Particle Physics - Experiment
Published: 1996

243. Upper limit on the $\nu_{\tau}$ mass from $\tau$ --> 3h$\nu_{\tau}$ decays

Author: Alexander, Gideon, Allison, J, Altekamp, N, Ametewee, K A, Anderson, K J, Anderson, S, Arcelli, S, Asai, S, Axen, D A, Azuelos, Georges, Ball, A H, Barberio, E, Barlow, R J, Bartoldus, R, Batley, J Richard, Beaudoin, G, Bechtluft, J, Beeston, C, Behnke, T, Bell, A N, Bell, K W, Bella, G, Bentvelsen, Stanislaus Cornelius Maria, Berlich, P, Bethke, Siegfried, Biebel, O, Blobel, Volker, Bloodworth, Ian J, Bloomer, J E, Bock, P, Bosch, H M, Boutemeur, M, Bouwens, B T, Braibant, S, Bright-Thomas, P G, Brown, R M, Burckhart, Helfried J, Burgard, C, Bürgin, R, Capiluppi, P, Carnegie, R K, Carter, A A, Carter, J R, Chang, C Y, Charlesworth, C, Charlton, D G, Chrisman, D, Chu, S L, Clarke, P E L, Cohen, I, Conboy, J E, Cooke, O C, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, G M, Darling, C L, De Jong, S, del Pozo, L A, Dixit, M S, do Couto e Silva, E, Doucet, M, Duchovni, E, Duckeck, G, Duerdoth, I P, Edwards, J E G, Estabrooks, P G, Evans, H G, Evans, M, Fabbri, Franco Luigi, Fath, P, Fiedler, F, Fierro, M, Fischer, H M, Folman, R, Fong, D G, Foucher, M, Fukui, H, Fürtjes, A, Gagnon, P, Gaidot, A, Gary, J W, Gascon, J, Gascon-Shotkin, S M, Geddes, N I, Geich-Gimbel, C, Gensler, S W, Gentit, F X, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, W R, Gingrich, D M, Goldberg, J, Goodrick, M J, Gorn, W, Grandi, C, Gross, E, Gruwé, M, Hajdu, C, Hanson, G G, Hansroul, M, Hapke, M, Hargrove, C K, Hart, P A, Hartmann, C, Hauschild, M, Hawkes, C M, Hawkings, R, Hemingway, Richard J, Herten, G, Heuer, R D, Hildreth, M D, Hill, J C, Hillier, S J, Hilse, T, Hobson, P R, Homer, R James, Honma, A K, Horváth, D, Howard, R, Hughes-Jones, R E, Hutchcroft, D E, Igo-Kemenes, P, Imrie, D C, Ingram, M R, Jawahery, A, Jeffreys, P W, Jeremie, H, Jimack, Martin Paul, Joly, A, Jones, G, Jones, M, Jones, R W L, Jost, U, Jovanovic, P, Kanzaki, J I, Karlen, D A, Kawamoto, T, Keeler, Richard K, Kellogg, R G, Kennedy, B W, King, J, Kirk, J, Kluth, S, Kobayashi, T, Kobel, M, Koetke, D S, Kokott, T P, Komamiya, S, Kowalewski, R V, Kress, T, Krieger, P, Von Krogh, J, Kyberd, P, Lafferty, G D, Lafoux, H, Lahmann, R, Lai, W P, Lanske, D, Lauber, J, Layter, J G, Lee, A M, Lefebvre, E, Lellouch, Daniel, Letts, J, Levinson, L, Lewis, C, Lloyd, S L, Loebinger, F K, Long, G D, Lorazo, B, Losty, Michael J, Ludwig, J, Luig, A, Malik, A, Mannelli, M, Marcellini, S, Markus, C, Martin, A J, Martin, J P, Martínez, G, Mashimo, T, Matthews, W, Mättig, P, McDonald, W J, McKenna, J A, McKigney, E A, McMahon, T J, McNab, A I, Meijers, F, Menke, S, Merritt, F S, Mes, H, Meyer, J, Michelini, Aldo, Mikenberg, G, Miller, D J, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Müller, U, Nellen, B, Nijjhar, B, Nisius, R, O'Neale, S W, Oakham, F G, Odorici, F, Ögren, H O, Omori, T, Oreglia, M J, Orito, S, Palazzo, M, Pálinkás, J, Pansart, J P, Pásztor, G, Pater, J R, Patrick, G N, Pearce, M J, Petzold, S, Pilcher, J E, Pinfold, J L, Plane, D E, Poffenberger, P R, Poli, B, Posthaus, A, Przysiezniak, H, Rees, D L, Rigby, D, Rison, M G, Robins, S A, Rodning, N L, Roney, J M, Rooke, A M, Ros, E, Rossi, A M, Rosvick, M, Routenburg, P, Rozen, Y, Runge, K, Runólfsson, O, Rust, D R, Rylko, R, Sarkisyan-Grinbaum, E, Sasaki, M, Sbarra, C, Schaile, A D, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schmitt, B, Schröder, M, Schultz-Coulon, H C, Schulz, M, Schütz, P, Schwiening, J, Scott, W G, Shears, T G, Shen, B C, Shepherd-Themistocleous, C H, Sherwood, P, Siroli, G P, Sittler, A, Skillman, A, Skuja, A, Smith, A M, Smith, T J, Snow, G A, Sobie, Randall J, Söldner-Rembold, S, Springer, R W, Sproston, M, Stahl, A, Starks, M, Stephens, K, Steuerer, J, Stockhausen, B, Strom, D, Strumia, F, Szymanski, P, Tafirout, R, Takeda, H, Taras, P, Tarem, S, Tecchio, M, Tesch, N, Thiergen, M, Thomson, M A, Von Törne, E, Towers, S, Tscheulin, M, Tsur, E, Turcot, A S, Turner-Watson, M F, Utzat, P, Van Kooten, R, Vasseur, G, Verzocchi, M, Vikas, P, Vincter, M G, Vokurka, E H, Wäckerle, F, Wagner, A, Ward, C P, Ward, D R, Ward, J J, Watkins, P M, Watson, A T, Watson, N K, Weber, P, Wells, P S, Wermes, N, White, J S, Wilkens, B, Wilson, G W, Wilson, J A, Wlodek, T, Wolf, G, Wotton, S A, Wyatt, T R, Xella, S M, Yamashita, S, Yekutieli, G, Yoshimura, K, and Zacek, V
Subjects: Particle Physics - Experiment
Published: 1996

244. Combining Heavy Flavour Electroweak Measurements at LEP

Author: Buskulic, D., de Bonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J.P., Minard, M.N., Pietrzyk, B., Ariztizabal, F., Comas, P., Crespo, J.M., Delfino, M., Efthymiopoulos, I., Fernandez, E., Fernandez-Bosman, M., Gaitan, V., Garrido, L., Mattison, T., Pacheco, A., Padilla, C., Pascual, A., Creanza, D., de Palma, M., Farilla, A., Iaselli, G., Maggi, G., Natali, S., Nuzzo, S., Quattromini, M., Ranieri, A., Raso, G., Romano, F., Ruggieri, F., Selvaggi, G., Silvestris, L., Tempesta, P., Zito, G., Chai, Y., Hu, H., Huang, D., Huang, X., Lin, Jiali, Wang, T., Xie, Y., Xu, D., Xu, R., Zhang, J., Zhang, L., Zhao, W., Blucher, E., Bonvicini, G., Boudreau, J., Casper, D., Drevermann, H., Forty, R.W., Ganis, G., Gay, C., Hagelberg, R., Harvey, J., Hilgart, J., Jacobsen, R., Jost, B., Knobloch, J., Lehraus, I., Lohse, T., Maggi, M., Markou, C., Martinez, M., Mato, P., Meinhard, H., Minten, A., Miotto, A., Miquel, R., Moser, H.G., Palazzi, P., Pater, J.R., Perlas, J.A., Pusztaszeri, J.F., Ranjard, F., Redlinger, G., Rolandi, L., Rothberg, J., Ruan, T., Saich, M., Schlatter, D., Schmelling, M., Sefkow, F., Tejessy, W., Tomalin, I.R., Veenhof, R., Wachsmuth, H., Wasserbaech, S., Wiedenmann, W., Wildish, T., Witzeling, W., Wotschack, J., Ajaltouni, Ziad, Badaud, F., Bardadin-Otwinowska, M., El Fellous, R., Falvard, Alain, Gay, Pascal, Guicheney, C., Henrard, Pierre, Jousset, J., Michel, B., Montret, Jean-Claude, Pallin, D., Perret, Pascal, Podlyski, F., Proriol, Joseph, Prulhiere, F., Saadi, F., Fearnley, T., Hansen, J.B., Hansen, J.D., Hansen, J.R., Hansen, P.H., Mollerud, R., Nilsson, B.S., Kyriakis, A., Simopoulou, E., Siotis, I., Vayaki, A., Zachariadou, K., Badier, J., Blondel, A., Bonneaud, G., Brient, J.C., Fouque, G., Orteu, S., Rouge, A., Rumpf, M., Tanaka, R., Verderi, M., Videau, H., Candlin, D.J., Parsons, M.I., Veitch, E., Focardi, E., Moneta, L., Parrini, G., Corden, M., Georgiopoulos, C., Ikeda, M., Levinthal, D., Antonelli, A., Baldini, R., Bencivenni, G., Bologna, G., Bossi, F., Campana, P., Capon, G., Cerruti, C., Chiarella, V., d'Ettorre-Piazzoli, B., Felici, G., Laurelli, P., Mannocchi, G., Murtas, F., Murtas, G.P., Passalacqua, L., Pepe-Altarelli, M., Picchi, P., Colrain, P., ten Have, I., Lynch, J.G., Maitland, W., Morton, W.T., Raine, C., Reeves, P., Scarr, J.M., Smith, K., Smith, M.G., Thompson, A.S., Turnbull, R.M., Brandl, B., Braun, O., Geweniger, C., Hanke, P., Hepp, V., Kluge, E.E., Maumary, Y., Putzer, A., Rensch, B., Tittel, K., Wunsch, M., Beuselinck, R., Binnie, D.M., Cameron, W., Cattaneo, M., Colling, D.J., Dornan, P.J., Greene, A.M., Hassard, J.F., Lieske, N.M., Moutoussi, A., Nash, J., Patton, S., Payne, D.G., Phillips, M.J., San Martin, G., Sedgbeer, J.K., Wright, A.G., Girtler, P., Kuhn, D., Rudolph, G., Vogl, R., Bowdery, C., Brodbeck, T.J., Finch, A.J., Foster, F., Hughes, G., Jackson, D., Keemer, N.R., Nuttall, M., Patel, A., Sloan, T., Snow, S.W., Whelan, E.P., Kleinknecht, K., Raab, J., Renk, B., Sander, H.G., Schmidt, H., Steeg, F., Walther, S.M., Wanke, R., Wolf, B., Bencheikh, A.M., Benchouk, C., Bonissent, A., Carr, J., Coyle, P., Drinkard, J., Etienne, F., Nicod, D., Papalexiou, S., Payre, P., Rousseau, D., Schwemling, P., Talby, M., Adlung, S., Assmann, R., Bauer, C., Blum, W., Brown, D., Cattaneo, P., Dehning, B., Dietl, H., Dydak, F., Frank, M., Halley, A.W., Jakobs, K., Lutjens, G., Lutz, G., Manner, W., Richter, R., Schroder, J., Schwarz, A.S., Settles, R., Seywerd, H., Stierlin, U., Stiegler, U., Alemany, R., Boucrot, J., Callot, O., Cordier, A., Davier, M., Duflot, L., Grivaz, J.F., Heusse, P., Jaffe, D.E., Janot, P., Kim, D.W., Le Diberder, F., Lefrancois, J., Lutz, A.M., Schune, M.H., Veillet, J.J., Videau, I., Zhang, Zhiqing, Abbaneo, D., Bagliesi, G., Batignani, G., Bottigli, U., Bozzi, C., Calderini, G., Carpinelli, M., Ciocci, M.A., Ciulli, V., Dell'Orso, R., Ferrante, I., Fidecaro, F., Foa, L., Forti, F., Giassi, A., Giorgi, M.A., Gregorio, A., Ligabue, F., Lusiani, A., Mannelli, E.B., Marrocchesi, P.S., Messineo, A., Palla, F., Rizzo, G., Sanguinetti, G., Spagnolo, P., Steinberger, J., Tenchini, R., Tonelli, G., Triggiani, G., Valassi, A., Vannini, C., Venturi, A., Verdini, P.G., Walsh, J., Betteridge, A.P., Gao, Y., Green, M.G., March, P.V., Mir, L.M., Medcalf, T., Quazi, I.S., Strong, J.A., West, L.R., Botterill, D.R., Clifft, R.W., Edgecock, T.R., Haywood, S., Norton, P.R., Thompson, J.C., Bloch-Devaux, B., Colas, P., Duarte, H., Emery, S., Kozanecki, W., Lancon, E., Lemaire, M.C., Locci, E., Marx, B., Perez, P., Rander, J., Renardy, J.F., Rosowsky, A., Roussarie, A., Schuller, J.P., Schwindling, J., Si Mohand, D., Vallage, B., Johnson, R.P., Litke, A.M., Taylor, G., Wear, J., Ashman, J.G., Babbage, W., Booth, C.N., Buttar, C., Cartwright, S.L., Combley, F., Dawson, I., Thompson, L.F., Barbiero, E., Bohrer, A., Brandt, S., Cowan, G., Grupen, C., Lutters, G., Rivera, F., Schafer, U., Smolik, L., Bosisio, L., Della Marina, R., Giannini, G., Gobbo, B., Ragusa, F., Bellantoni, L., Chen, W., Conway, J.S., Feng, Z., Ferguson, D.P.S., Gao, Y.S., Grahl, J., Harton, J.L., Hayes, O.J., Nachtman, J.M., Pan, Y.B., Saadi, Y., Schmitt, M., Sharma, V., Shi, Z.H., Turk, J.D., Walsh, A.M., Weber, F.V., Wu, S.L., Wu, X., Zheng, M., Zobernig, G., Abreu, P., Adam, W., Adye, T., Agasi, E., Azhinenko, I., Aleksan, R., Alekseev, G.D., Allport, P.P., Almehed, S., Almeida, F.M.L., Alvsvaag, S.J., Amaldi, U., Amato, S., Andreazza, A., Andrieux, M.L., Antilogus, P., Apel, W.D., Arnoud, Y., Asman, B., Augustin, J.-E., Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barate, R., Bardin, D.Yu., Barker, G.J., Baroncelli, A., Barring, O., Barrio, J.A., Bartl, W., Bates, M.J., Battaglia, M., Baubillier, M., Baudot, J., Becks, K.H., Begalli, M., Beilliere, P., Belokopytov, Yu., Beltran, P., Benvenuti, A.C., Berggren, M., Bertrand, D., Bianchi, F., Bigi, M., Bilenkii, M.S., Billoir, P., Bjarne, J., Bloch, D., Blume, M., Blyth, S., Bocci, V., Bolognese, T., Bonesini, M., Bonivento, W., Booth, P.S.L., Borisov, G., Bosio, C., Bostjancic, B., Bosworth, S., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., Bowcock, T.J.V., Bozzo, M., Branchini, P., Brand, K.D., Brenner, R.A., Briand, H., Bricman, C., Brillault, L., Brown, R.C.A., Bruckman, P., Brunet, J.M., Bugge, L., Buran, T., Buys, A., Caccia, M., Calvi, M., Camacho Rozas, A.J., Camporesi, T., Canale, V., Canepa, M., Cankocak, K., Cao, F., Carena, F., Carrilho, P., Carroll, L., Caso, C., Cassio, V., Castillo Gimenez, M.V., Cattai, A., Cavallo, F.R., Cerrito, L., Chabaud, V., Chan, A., Charpentier, P., Chaussard, L., Chauveau, J., Checchia, P., Chelkov, G.A., Chliapnikov, P., Chochula, P., Chorowicz, V., Chrin, J.T.M., Cindro, V., Collins, P., Contreras, J.L., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Crawley, H.B., Crennell, D., Crosetti, G., Cuevas Maestro, J., Czellar, S., Dahl-Jensen, E., Dahm, J., d'Almagne, B., Dam, M., Damgaard, G., Daum, A., Dauncey, P.D., Davenport, M., da Silva, W., Defoix, C., Della Ricca, G., Delpierre, P., Demaria, N., de Angelis, A., de Boeck, H., de Boer, W., de Brabandere, S., de Clercq, C., de Fez Laso, M.D.M., de La Vaissiere, C., de Lotto, B., de Min, A., de Paula, L., de Saint-Jean, C., Dijkstra, H., Di Ciaccio, L., Djama, F., Dolbeau, J., Donszelmann, M., Doroba, K., Dracos, M., Drees, J., Drees, K.A., Dris, M., Dufour, Y., Dupont, F., Edsall, D., Ehret, R., Ekelof, T., Ekspong, G., Elsing, M., Engel, J.P., Ershaidat, N., Espirito Santo, M., Fassouliotis, D., Feindt, M., Fenyuk, A., Ferrer, A., Filippas, T.A., Firestone, A., Foeth, H., Fokitis, E., Fontanelli, F., Formenti, F., Fousset, J.L., Franek, B., Frenkiel, P., Fries, D.C., Frodesen, A.G., Fruhwirth, R., Fulda-Quenzer, F., Furstenau, H., Fuster, J., Gamba, D., Gandelman, M., Garcia, C., Garcia, J., Gaspar, C., Gasparini, U., Gavillet, P., Gazis, E.N., Gerber, J.P., Gillespie, D., Gokieli, R., Golob, B., Gomez, y Cadenas J.J., Gopal, G., Gorn, L., Gorski, M., Gracco, V., Grard, F., Graziani, E., Grosdidier, G., Gunnarsson, P., Guy, J., Haedinger, U., Hahn, F., Hahn, M., Hahn, S., Haider, S., Hajduk, Z., Hakansson, A., Hallgren, A., Hamacher, K., Hao, W., Harris, F.J., Hedberg, V., Henriques, R., Hernandez, J.J., Hernando, J.A., Herquet, P., Herr, H., Hessing, T.L., Higon, E., Hilke, H.J., Hill, T.S., Holmgren, S.O., Holt, P.J., Holthuizen, D., Honore, P.F., Houlden, M., Hrubec, J., Huet, K., Hultqvist, K., Ioannou, P., Iversen, P.S., Jackson, J.N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, G., Jarry, P., Jean-Marie, B., Johansson, E.K., Jonsson, L., Juillot, P., Kaiser, M., Kalmus, G., Kapusta, F., Karlsson, M., Karvelas, E., Katsanevas, S., Katsoufis, E.C., Keranen, R., Khomenko, B.A., Khovanski, N.N., Kjaer, N.J., Klein, H., Klovning, A., Kluit, P., Kohne, J.H., Koene, B., Kokkinias, P., Koratzinos, M., Korcyl, K., Kostioukhine, V., Kourkoumelis, C., Kouznetsov, O., Kramer, P.H., Krammer, M., Kreuter, C., Krolikowski, J., Kronkvist, I., Krumstein, Z., Krupinski, W., Kubinec, P., Kucewicz, W., Kulka, K., Kurvinen, K., Lacasta, C., Laktineh, I., Lambropoulos, C., Lamsa, J.W., Lanceri, L., Langefeld, P., Lapin, V., Last, I., Laugier, J.P., Lauhakangas, R., Ledroit, F., Lefebure, V., Leitner, R., Lemoigne, Y., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Levy, J.M., Liko, D., Lindner, R., Lipniacka, A., Lippi, I., Lorstad, B., Lokajicek, M., Loken, J.G., Lopez-Fernandez, A., Lopez Aguera, M.A., Loukas, D., Lozano, J.J., Lutz, P., Lyons, L., Maehlum, G., Maillard, J., Maio, A., Maltezos, A., Malychev, V., Mandl, F., Marco, J., Marechal, B., Margoni, M., Marin, J.C., Mariotti, C., Markou, A., Maron, T., Martinez-Rivero, C., Martinez-Vidal, F., Marti, I Garcia S., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, M., Mccubbin, M., Mckay, R., Mcnulty, R., Medbo, J., Meroni, C., Meyer, W.T., Michelotto, M., Migliore, E., Mikulec, I., Mirabito, L., Mitaroff, W.A., Mjornmark, U., Moa, T., Moller, R., Monig, K., Monge, M.R., Morettini, P., Muller, H., Murray, W.J., Muryn, B., Myatt, G., Naraghi, F., Navarria, F.L., Navas, S., Negri, P., Nemecek, S., Neumann, W., Neumeister, N., Nicolaidou, R., Nielsen, B.S., Nikolaenko, V., Niss, P., Nomerotski, A., Normand, A., Oberschulte-Beckmann, W., Obraztsov, V., Olshevski, A.G., Orava, R., Osterberg, K., Ouraou, A., Paganini, P., Paganoni, M., Pages, P., Pain, R., Palka, H., Papadopoulou, T.D., Pape, L., Parodi, F., Passeri, A., Pegoraro, M., Pennanen, J., Peralta, L., Perevozchikov, V., Pernegger, H., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H.T., Piana, G., Pierre, F., Pimenta, M., Plaszczynski, Stéphane, Podobrin, O., Pol, M.E., Polok, G., Poropat, P., Pozdnyakov, V., Prest, M., Privitera, P., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, P.N., Read, A.L., Reale, M., Rebecchi, P., Redaelli, N.G., Regler, M., Reid, D., Renton, P.B., Resvanis, L.K., Richard, F., Richardson, J., Ridky, J., Rinaudo, G., Ripp, I., Romero, A., Roncagliolo, I., Ronchese, P., Roos, L., Rosenberg, E.I., Rosso, E., Roudeau, P., Rovelli, T., Ruckstuhl, W., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovskii, A., Sajot, G., Salt, J., Sanchez, J., Sannino, M., Schneider, Henri, Schyns, M.A.E., Sciolla, G., Scuri, F., Sedykh, Y., Segar, A.M., Seitz, A., Sekulin, R., Shellard, R.C., Siccama, I., Siegrist, P., Simonetti, S., Simonetto, F., Sisakian, A.N., Sitar, B., Skaali, T.B., Smadja, G., Smirnov, N., Smirnova, O., Smith, G.R., Sosnowski, R., Souza-Santos, D., Spassov, T., Spiriti, E., Squarcia, S., Stack, H., Stanescu, C., Stapnes, S., Stavitski, I., Stavropoulos, G., Stepaniak, K., Stichelbaut, F., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Chikilev, O., Theodosiou, G.E., Tilquin, A., Timmermans, J., Tkachev, L.G., Todorov, T., Toet, D.Z., Tomaradze, A., Tome, B., Torassa, E., Tortora, L., Transtromer, G., Treille, D., Trischuk, W., Tristram, G., Trombini, A., Troncon, C., Tsirou, A., Turluer, M.L., Tuuva, T., Tyapkin, I.A., Tyndel, M., Tzamarias, S., Uberschar, B., Uberschar, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Valls Ferrer, J.A., van Apeldoorn, G.W., van Dam, P., van Doninck, W.K., van Eldik, J., Vegni, G., Ventura, Laurent, Venus, W., Verbeure, F., Verlato, M., Vertogradov, L.S., Vilanova, D., Vincent, P., Vitale, L., Vlasov, E., Vodopyanov, A.S., Voutilainen, M., Vrba, V., Wahlen, H., Walck, C., Waldner, F., Wehr, A., Weierstall, M., Weilhammer, P., Wetherell, A.M., Wicke, D., Wickens, J.H., Wielers, M., Wilkinson, G.R., Williams, W.S.C., Winter, M., Witek, M., Wormser, G., Woschnagg, K., Yip, K., Yushchenko, O., Zach, F., Zaitsev, A., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N.I., Zito, M., Zontar, D., Zuberi, R., Zucchelli, G.C., Zumerle, G., Akers, R., Alexander, G., Allison, J., Anderson, K.J., Arcelli, S., Asai, S., Astbury, A., Axen, D., 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C.C., Ting, S.M., Tonutti, M., Tonwar, S.C., Toth, J., Tsaregorodtsev, A., Tsipolitis, G., Tully, C., Tung, K.L., Ulbricht, J., Urban, L., Uwer, U., Valente, E., van de Walle, R.T., Vetlitskii, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Vogel, H., Vogt, H., Vorobev, I., Vorobev, A.A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, Chen, Wang, C.R., Wang, G.H., Wang, J.H., Wang, X.L., Wang, Y.F., Wang, Z.M., Weber, A., Weber, J., Weill, R., Wenaus, T.J., Wenninger, J., White, M., Willmott, C., Wittgenstein, F., Wright, D., Wu, S.X., Wynhoff, S., Wyslouch, B., Xie, Y.Y., Xu, J.G., Xu, Z.Z., Xue, Z.L., Yan, D.S., Yang, B.Z., Yang, C.G., Yang, G., Ye, C.H., Ye, J.B., Ye, Q., Yeh, S.C., Yin, Z.W., You, J.M., Yunus, N., Yzerman, M., Zaccardelli, C., Zemp, P., Zeng, M., Zeng, Y., Zhang, D.H., Zhang, Z.P., Zhou, B., Zhou, B.J., Zhou, J.F., Zhu, R.Y., Zichichi, A., van Der Zwaan, B.C.C., 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), 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 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), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), 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), 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 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), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), ALEPH, CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), 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)-Université Claude Bernard Lyon 1 (UCBL), 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)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), 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), 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), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), LEP (IHEF, IoP, FNWI), 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), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), BARBIELLINI AMIDEI, Guido, Bosisio, Luciano, Cossutti, F., DELLA RICCA, Giuseppe, Giannini, Gianrossano, Lanceri, Livio, Poropat, Paolo, and Vitale, Lorenzo
Subjects: ratios of cross sections, Nuclear and High Energy Physics, Aleph, Particle physics, PARTICLE PHYSICS, LARGE ELECTRON POSITRON COLLIDER, ALEPH, DELPHI, L3, OPAL, Flavour, 01 natural sciences, forward-backward asymmetries, 0103 physical sciences, LEP experiments, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Instrumentation, Ciencias Exactas, Physics, 010308 nuclear & particles physics, Electroweak interaction, High Energy Physics::Phenomenology, Física, Large Electron–Positron Collider, High Energy Physics::Experiment
Abstract: The ratios of cross sections, Rb = a(e+e- → bb)/a(e+e- → hadrons) and R, = cr(e+e- → E)/a(e+e- → hadrons) and , and the forward-backward asymmetries and , have been measured by the four LEP experiments at centre-of-mass energies close to the Z boson mass, using a variety of heavy flavour identification techniques and analysis methods. The procedure adopted to combine these measurements is described here. It takes into account the statistical and systematic correlations among the measurements and their interdependences in a χ2 minimization. The procedure is illustrated using published measurements., Facultad de Ciencias Exactas
Published: 1996

245. Observation of $\Upsilon$ production in hadronic Z$^{0}$ decays

Author: Alexander, Gideon, Allison, J, Altekamp, N, Ametewee, K A, Anderson, K J, Anderson, S, Arcelli, S, Asai, S, Axen, D A, Azuelos, Georges, Ball, A H, Barberio, E, Barlow, R J, Bartoldus, R, Batley, J Richard, Beaudoin, G, Bechtluft, J, Beck, G A, Beeston, C, Behnke, T, Bell, A N, Bell, K W, Bella, G, Bentvelsen, Stanislaus Cornelius Maria, Berlich, P, Bethke, Siegfried, Biebel, O, Bloodworth, Ian J, Bloomer, J E, Bock, P, Bosch, H M, Boutemeur, M, Bouwens, B T, Braibant, S, Bright-Thomas, P G, Brown, R M, Burckhart, Helfried J, Burgard, C, Bürgin, R, Capiluppi, P, Carnegie, R K, Carter, A A, Carter, J R, Chang, C Y, Charlesworth, C, Charlton, D G, Chrisman, D, Chu, S L, Clarke, P E L, Clowes, S G, Cohen, I, Conboy, J E, Cooke, O C, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, G M, Darling, C L, De Jong, S, del Pozo, L A, Dixit, M S, do Couto e Silva, E, Duchovni, E, Duckeck, G, Duerdoth, I P, Dunwoody, U C, Edwards, J E G, Estabrooks, P G, Evans, H G, Fabbri, Franco Luigi, Fabbro, B, Fath, P, Fiedler, F, Fierro, M, Fincke-Keeler, Margret, Fischer, H M, Folman, R, Fong, D G, Foucher, M, Fukui, H, Fürtjes, A, Gagnon, P, Gaidot, A, Gary, J W, Gascon, J, Gascon-Shotkin, S M, Geddes, N I, Geich-Gimbel, C, Gensler, S W, Gentit, F X, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, W R, Gingrich, D M, Goldberg, J, Goodrick, M J, Gorn, W, Grandi, C, Gross, E, Hajdu, C, Hanson, G G, Hansroul, M, Hapke, M, Hargrove, C K, Hart, P A, Hartmann, C, Hauschild, M, Hawkes, C M, Hawkings, R, Hemingway, Richard J, Herten, G, Heuer, R D, Hildreth, M D, Hill, J C, Hillier, S J, Hilse, T, Hobson, P R, Hochman, D, Homer, R James, Honma, A K, Horváth, D, Howard, R, Hughes-Jones, R E, Hutchcroft, D E, Igo-Kemenes, P, Imrie, D C, Jawahery, A, Jeffreys, P W, Jeremie, H, Jimack, Martin Paul, Joly, A, Jones, M, Jones, R W L, Jost, U, Jovanovic, P, Karlen, D A, Kawamoto, T, Keeler, Richard K, Kellogg, R G, Kennedy, B W, King, B J, King, J, Kirk, J, Kluth, S, Kobayashi, T, Kobel, M, Koetke, D S, Kokott, T P, Komamiya, S, Kowalewski, R V, Kress, T, Krieger, P, Von Krogh, J, Kyberd, P, Lafferty, G D, Lafoux, H, Lahmann, R, Lai, W P, Lanske, D, Lauber, J, Layter, J G, Lee, A M, Lefebvre, E, Lellouch, Daniel, Letts, J, Levinson, L, Lewis, C, Lloyd, S L, Loebinger, F K, Long, G D, Lorazo, B, Losty, Michael J, Ludwig, J, Luig, A, Malik, A, Mannelli, M, Marcellini, S, Markus, C, Martin, A J, Martin, J P, Martínez, G, Mashimo, T, Matthews, W, Mättig, P, McDonald, W J, McKenna, J A, McKigney, E A, McMahon, T J, McNab, A I, Meijers, F, Menke, S, Merritt, F S, Mes, H, Meyer, J, Michelini, Aldo, Mikenberg, G, Miller, D J, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Müller, U, Nellen, B, Nijjhar, B, Nisius, R, O'Neale, S W, Oakham, F G, Odorici, F, Ögren, H O, Oldershaw, N J, Omori, T, Oram, C J, Oreglia, M J, Orito, S, Palazzo, M, Pálinkás, J, Palmonari, F, Pansart, J P, Pásztor, G, Pater, J R, Patrick, G N, Pearce, M J, Phillips, P D, Pilcher, J E, Pinfold, J L, Plane, D E, Poffenberger, P R, Poli, B, Posthaus, A, Pritchard, T W, Przysiezniak, H, Rees, D L, Rigby, D, Rison, M G, Robins, S A, Rodning, N L, Roney, J M, Ros, E, Rossi, A M, Rosvick, M, Routenburg, P, Rozen, Y, Runge, K, Runólfsson, O, Rust, D R, Rylko, R, Sarkisyan-Grinbaum, E, Sasaki, M, Sbarra, C, Schaile, A D, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schmitt, B, Schröder, M, Schultz-Coulon, H C, Schulz, M, Schütz, P, Schwiening, J, Scott, W G, Shears, T G, Shen, B C, Shepherd-Themistocleous, C H, Sherwood, P, Siroli, G P, Sittler, A, Skillman, A, Skuja, A, Smith, A M, Smith, T J, Snow, G A, Sobie, Randall J, Söldner-Rembold, S, Springer, R W, Sproston, M, Stahl, A, Starks, M, Stegmann, C, Stephens, K, Steuerer, J, Stockhausen, B, Strom, D, Strumia, F, Szymanski, P, Tafirout, R, Takeda, H, Taras, P, Tarem, S, Tecchio, M, Tesch, N, Thomson, M A, Von Törne, E, Towers, S, Tscheulin, M, Tsukamoto, T, Tsur, E, Turcot, A S, Turner-Watson, M F, Utzat, P, Van Kooten, R, Vasseur, G, Vikas, P, Vincter, M G, Vokurka, E H, Wäckerle, F, Wagner, A, Wagner, D L, Ward, C P, Ward, D R, Ward, J J, Watkins, P M, Watson, A T, Watson, N K, Weber, P, Wells, P S, Wermes, N, Wilkens, B, Wilson, G W, Wilson, J A, Wlodek, T, Wolf, G, Wotton, S A, Wyatt, T R, Xella, S M, Yamashita, S, Yekutieli, G, and Zacek, V
Subjects: Particle Physics - Experiment
Published: 1995

246. $J/\psi$ and $\psi '$ Production in Hadronic $Z^{0}$ Decays

Author: Alexander, Gideon, Allison, J, Altekamp, N, Ametewee, K A, Anderson, K J, Anderson, S, Arcelli, S, Asai, S, Axen, D A, Azuelos, Georges, Ball, A H, Barberio, E, Barlow, R J, Bartoldus, R, Batley, J Richard, Beaudoin, G, Bechtluft, J, Beck, G A, Beeston, C, Behnke, T, Bell, A N, Bell, K W, Bella, G, Bentvelsen, Stanislaus Cornelius Maria, Berlich, P, Bethke, Siegfried, Biebel, O, Bloodworth, Ian J, Bloomer, J E, Bock, P, Bosch, H M, Boutemeur, M, Bouwens, B T, Braibant, S, Bright-Thomas, P G, Brown, R M, Burckhart, Helfried J, Burgard, C, Bürgin, R, Capiluppi, P, Carnegie, R K, Carter, A A, Carter, J R, Chang, C Y, Charlesworth, C, Charlton, D G, Chrisman, D, Chu, S L, Clarke, P E L, Clowes, S G, Cohen, I, Conboy, J E, Cooke, O C, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, G M, Darling, C L, De Jong, S, del Pozo, L A, Dixit, M S, do Couto e Silva, E, Duchovni, E, Duckeck, G, Duerdoth, I P, Dunwoody, U C, Edwards, J E G, Estabrooks, P G, Evans, H G, Fabbri, Franco Luigi, Fabbro, B, Fath, P, Fiedler, F, Fierro, M, Fincke-Keeler, Margret, Fischer, H M, Folman, R, Fong, D G, Foucher, M, Fukui, H, Fürtjes, A, Gagnon, P, Gaidot, A, Gary, J W, Gascon, J, Gascon-Shotkin, S M, Geddes, N I, Geich-Gimbel, C, Gensler, S W, Gentit, F X, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, W R, Gingrich, D M, Goldberg, J, Goodrick, M J, Gorn, W, Grandi, C, Gross, E, Hajdu, C, Hanson, G G, Hansroul, M, Hapke, M, Hargrove, C K, Hart, P A, Hartmann, C, Hauschild, M, Hawkes, C M, Hawkings, R, Hemingway, Richard J, Herten, G, Heuer, R D, Hildreth, M D, Hill, J C, Hillier, S J, Hilse, T, Hobson, P R, Hochman, D, Homer, R James, Honma, A K, Horváth, D, Howard, R, Hughes-Jones, R E, Hutchcroft, D E, Igo-Kemenes, P, Imrie, D C, Jawahery, A, Jeffreys, P W, Jeremie, H, Jimack, Martin Paul, Joly, A, Jones, M, Jones, R W L, Jost, U, Jovanovic, P, Karlen, D A, Kawamoto, T, Keeler, Richard K, Kellogg, R G, Kennedy, B W, King, B J, King, J, Kirk, J, Kluth, S, Kobayashi, T, Kobel, M, Koetke, D S, Kokott, T P, Komamiya, S, Kowalewski, R V, Kress, T, Krieger, P, Von Krogh, J, Kyberd, P, Lafferty, G D, Lafoux, H, Lahmann, R, Lai, W P, Lanske, D, Lauber, J, Layter, J G, Lee, A M, Lefebvre, E, Lellouch, Daniel, Letts, J, Levinson, L, Lewis, C, Lloyd, S L, Loebinger, F K, Long, G D, Lorazo, B, Losty, Michael J, Ludwig, J, Luig, A, Malik, A, Mannelli, M, Marcellini, S, Markus, C, Martin, A J, Martin, J P, Martínez, G, Mashimo, T, Matthews, W, Mättig, P, McDonald, W J, McKenna, J A, McKigney, E A, McMahon, T J, McNab, A I, Meijers, F, Menke, S, Merritt, F S, Mes, H, Meyer, J, Michelini, Aldo, Mikenberg, G, Miller, D J, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Müller, U, Nellen, B, Nijjhar, B, Nisius, R, O'Neale, S W, Oakham, F G, Odorici, F, Ögren, H O, Oldershaw, N J, Omori, T, Oram, C J, Oreglia, M J, Orito, S, Palazzo, M, Pálinkás, J, Palmonari, F, Pansart, J P, Pásztor, G, Pater, J R, Patrick, G N, Pearce, M J, Phillips, P D, Pilcher, J E, Pinfold, J L, Plane, D E, Poffenberger, P R, Poli, B, Posthaus, A, Pritchard, T W, Przysiezniak, H, Rees, D L, Rigby, D, Rison, M G, Robins, S A, Rodning, N L, Roney, J M, Ros, E, Rossi, A M, Rosvick, M, Routenburg, P, Rozen, Y, Runge, K, Runólfsson, O, Rust, D R, Rylko, R, Sarkisyan-Grinbaum, E, Sasaki, M, Sbarra, C, Schaile, A D, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schmitt, B, Schröder, M, Schultz-Coulon, H C, Schulz, M, Schütz, P, Schwiening, J, Scott, W G, Shears, T G, Shen, B C, Shepherd-Themistocleous, C H, Sherwood, P, Siroli, G P, Sittler, A, Skillman, A, Skuja, A, Smith, A M, Smith, T J, Snow, G A, Sobie, Randall J, Söldner-Rembold, S, Springer, R W, Sproston, M, Stahl, A, Starks, M, Stegmann, C, Stephens, K, Steuerer, J, Stockhausen, B, Strom, D, Strumia, F, Szymanski, P, Tafirout, R, Takeda, H, Taras, P, Tarem, S, Tecchio, M, Tesch, N, Thomson, M A, Von Törne, E, Towers, S, Tscheulin, M, Tsukamoto, T, Tsur, E, Turcot, A S, Turner-Watson, M F, Utzat, P, Van Kooten, R, Vasseur, G, Vikas, P, Vincter, M G, Vokurka, E H, Wäckerle, F, Wagner, A, Wagner, D L, Ward, C P, Ward, D R, Ward, J J, Watkins, P M, Watson, A T, Watson, N K, Weber, P, Wells, P S, Wermes, N, Wilkens, B, Wilson, G W, Wilson, J A, Wlodek, T, Wolf, G, Wotton, S A, Wyatt, T R, Xella, S M, Yamashita, S, Yekutieli, G, and Zacek, V
Subjects: Particle Physics - Experiment
Published: 1995

247. Measurement of the $\tau^{-} \rightarrow e^{-}\overline{\nu}_{e}\nu_{. tau.}$

Author: Alexander, Gideon, Allison, J, Altekamp, N, Ametewee, K A, Anderson, K J, Anderson, S, Arcelli, S, Asai, S, Axen, D A, Azuelos, Georges, Ball, A H, Barberio, E, Barlow, R J, Bartoldus, R, Batley, J Richard, Beaudoin, G, Bechtluft, J, Beck, G A, Beeston, C, Behnke, T, Bell, A N, Bell, K W, Bella, G, Bentvelsen, Stanislaus Cornelius Maria, Berlich, P, Bethke, Siegfried, Biebel, O, Bloodworth, Ian J, Bloomer, J E, Bock, P, Bosch, H M, Boutemeur, M, Bouwens, B T, Braibant, S, Bright-Thomas, P G, Brown, R M, Burckhart, Helfried J, Burgard, C, Bürgin, R, Capiluppi, P, Carnegie, R K, Carter, A A, Carter, J R, Chang, C Y, Charlesworth, C, Charlton, D G, Chrisman, D, Chu, S L, Clarke, P E L, Clowes, S G, Cohen, I, Conboy, J E, Cooke, O C, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, G M, Darling, C L, De Jong, S, del Pozo, L A, Dixit, M S, do Couto e Silva, E, Duchovni, E, Duckeck, G, Duerdoth, I P, Dunwoody, U C, Edwards, J E G, Estabrooks, P G, Evans, H G, Fabbri, Franco Luigi, Fabbro, B, Fath, P, Fiedler, F, Fierro, M, Fincke-Keeler, Margret, Fischer, H M, Folman, R, Fong, D G, Foucher, M, Fukui, H, Fürtjes, A, Gagnon, P, Gaidot, A, Gary, J W, Gascon, J, Gascon-Shotkin, S M, Geddes, N I, Geich-Gimbel, C, Gensler, S W, Gentit, F X, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, W R, Gingrich, D M, Goldberg, J, Goodrick, M J, Gorn, W, Grandi, C, Gross, E, Hajdu, C, Hanson, G G, Hansroul, M, Hapke, M, Hargrove, C K, Hart, P A, Hartmann, C, Hauschild, M, Hawkes, C M, Hawkings, R, Hemingway, Richard J, Herten, G, Heuer, R D, Hildreth, M D, Hill, J C, Hillier, S J, Hilse, T, Hobson, P R, Hochman, D, Homer, R James, Honma, A K, Horváth, D, Howard, R, Hughes-Jones, R E, Hutchcroft, D E, Igo-Kemenes, P, Imrie, D C, Jawahery, A, Jeffreys, P W, Jeremie, H, Jimack, Martin Paul, Joly, A, Jones, M, Jones, R W L, Jost, U, Jovanovic, P, Karlen, D A, Kawamoto, T, Keeler, Richard K, Kellogg, R G, Kennedy, B W, King, B J, King, J, Kirk, J, Kluth, S, Kobayashi, T, Kobel, M, Koetke, D S, Kokott, T P, Komamiya, S, Kowalewski, R V, Kress, T, Krieger, P, Von Krogh, J, Kyberd, P, Lafferty, G D, Lafoux, H, Lahmann, R, Lai, W P, Lanske, D, Lauber, J, Layter, J G, Lee, A M, Lefebvre, E, Lellouch, Daniel, Letts, J, Levinson, L, Lewis, C, Lloyd, S L, Loebinger, F K, Long, G D, Lorazo, B, Losty, Michael J, Ludwig, J, Luig, A, Malik, A, Mannelli, M, Marcellini, S, Markus, C, Martin, A J, Martin, J P, Martínez, G, Mashimo, T, Matthews, W, Mättig, P, McDonald, W J, McKenna, J A, McKigney, E A, McMahon, T J, McNab, A I, Meijers, F, Menke, S, Merritt, F S, Mes, H, Meyer, J, Michelini, Aldo, Mikenberg, G, Miller, D J, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Müller, U, Nellen, B, Nijjhar, B, Nisius, R, O'Neale, S W, Oakham, F G, Odorici, F, Ögren, H O, Oldershaw, N J, Omori, T, Oram, C J, Oreglia, M J, Orito, S, Palazzo, M, Pálinkás, J, Pansart, J P, Pásztor, G, Pater, J R, Patrick, G N, Pearce, M J, Phillips, P D, Pilcher, J E, Pinfold, J L, Plane, D E, Poffenberger, P R, Poli, B, Posthaus, A, Pritchard, T W, Przysiezniak, H, Rees, D L, Rigby, D, Rison, M G, Robins, S A, Rodning, N L, Roney, J M, Ros, E, Rossi, A M, Rosvick, M, Routenburg, P, Rozen, Y, Runge, K, Runólfsson, O, Rust, D R, Rylko, R, Sarkisyan-Grinbaum, E, Sasaki, M, Sbarra, C, Schaile, A D, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schmitt, B, Schröder, M, Schultz-Coulon, H C, Schulz, M, Schütz, P, Schwiening, J, Scott, W G, Shears, T G, Shen, B C, Shepherd-Themistocleous, C H, Sherwood, P, Siroli, G P, Sittler, A, Skillman, A, Skuja, A, Smith, A M, Smith, T J, Snow, G A, Sobie, Randall J, Söldner-Rembold, S, Springer, R W, Sproston, M, Stahl, A, Starks, M, Stegmann, C, Stephens, K, Steuerer, J, Stockhausen, B, Strom, D, Strumia, F, Szymanski, P, Tafirout, R, Takeda, H, Taras, P, Tarem, S, Tecchio, M, Tesch, N, Thomson, M A, Von Törne, E, Towers, S, Tscheulin, M, Tsukamoto, T, Tsur, E, Turcot, A S, Turner-Watson, M F, Utzat, P, Van Kooten, R, Vasseur, G, Vikas, P, Vincter, M G, Vokurka, E H, Wäckerle, F, Wagner, A, Wagner, D L, Ward, C P, Ward, D R, Ward, J J, Watkins, P M, Watson, A T, Watson, N K, Weber, P, Wells, P S, Wermes, N, Wilkens, B, Wilson, G W, Wilson, J A, Wlodek, T, Wolf, G, Wotton, S A, Wyatt, T R, Xella, S M, Yamashita, S, Yekutieli, G, and Zacek, V
Subjects: Particle Physics - Experiment
Published: 1995

248. $\Delta^{++}$ Production in Hadronic $Z^{0}$ Decays

Author: Alexander, Gideon, Allison, J, Altekamp, N, Ametewee, K A, Anderson, K J, Anderson, S, Arcelli, S, Asai, S, Axen, D A, Azuelos, Georges, Ball, A H, Barberio, E, Barlow, R J, Bartoldus, R, Batley, J Richard, Beaudoin, G, Bechtluft, J, Beck, A, Beck, G A, Beeston, C, Behnke, T, Bell, K W, Bella, G, Bentvelsen, Stanislaus Cornelius Maria, Berlich, P, Bethke, Siegfried, Biebel, O, Bloodworth, Ian J, Bock, P, Bosch, H M, Boutemeur, M, Braibant, S, Bright-Thomas, P G, Brown, R M, Buijs, A, Burckhart, Helfried J, Burgard, C, Bürgin, R, Capiluppi, P, Carnegie, R K, Carter, A A, Carter, J R, Chang, C Y, Charlesworth, C, Charlton, D G, Chu, S L, Clarke, P E L, Clayton, J C, Clowes, S G, Cohen, I, Conboy, J E, Cooke, O C, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, G M, Darling, C L, De Jong, S, del Pozo, L A, Deng, H, Dixit, M S, do Couto e Silva, E, Duchovni, E, Duckeck, G, Duerdoth, I P, Dunwoody, U C, Edwards, J E G, Estabrooks, P G, Evans, H G, Fabbri, Franco Luigi, Fabbro, B, Fanti, M, Fath, P, Fiedler, F, Fierro, M, Fincke-Keeler, Margret, Fischer, H M, Folman, R, Fong, D G, Foucher, M, Fukui, H, Fürtjes, A, Gagnon, P, Gaidot, A, Gary, J W, Gascon, J, Gascon-Shotkin, S M, Geddes, N I, Geich-Gimbel, C, Gensler, S W, Gentit, F X, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, W R, Gillies, James D, Gingrich, D M, Goldberg, J, Goodrick, M J, Gorn, W, Grandi, C, Gross, E, Hajdu, C, Hanson, G G, Hansroul, M, Hapke, M, Hargrove, C K, Hart, P A, Hartmann, C, Hauschild, M, Hawkes, C M, Hawkings, R, Hemingway, Richard J, Herten, G, Heuer, R D, Hill, J C, Hillier, S J, Hilse, T, Hobson, P R, Hochman, D, Homer, R James, Honma, A K, Horváth, D, Howard, R, Hughes-Jones, R E, Hutchcroft, D E, Igo-Kemenes, P, Imrie, D C, Jawahery, A, Jeffreys, P W, Jeremie, H, Jimack, Martin Paul, Joly, A, Jones, M, Jones, R W L, Jost, U, Jovanovic, P, Kanzaki, J I, Karlen, D A, Kawagoe, K, Kawamoto, T, Keeler, Richard K, Kellogg, R G, Kennedy, B W, King, B J, King, J, Kirk, J, Kluth, S, Kobayashi, T, Kobel, M, Koetke, D S, Kokott, T P, Komamiya, S, Kowalewski, R V, Kress, T, Krieger, P, Von Krogh, J, Kyberd, P, Lafferty, G D, Lafoux, H, Lahmann, R, Lai, W P, Lanske, D, Lauber, J, Layter, J G, Lee, A M, Lefebvre, E, Lellouch, Daniel, Letts, J, Levinson, L, Lloyd, S L, Loebinger, F K, Long, G D, Lorazo, B, Losty, Michael J, Ludwig, J, Luig, A, Malik, A, Mannelli, M, Marcellini, S, Markus, C, Martin, A J, Martin, J P, Mashimo, T, Matthews, W, Mättig, P, McKenna, J A, McKigney, E A, McMahon, T J, McNab, A I, Meijers, F, Menke, S, Merritt, F S, Mes, H, Meyer, J, Michelini, Aldo, Mikenberg, G, Miller, D J, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Müller, U, Nellen, B, Nijjhar, B, O'Neale, S W, Oakham, F G, Odorici, F, Ögren, H O, Oldershaw, N J, Oram, C J, Oreglia, M J, Orito, S, Palazzo, M, Pálinkás, J, Pansart, J P, Pater, J R, Patrick, G N, Pearce, M J, Phillips, P D, Pilcher, J E, Pinfold, J L, Plane, D E, Poffenberger, P R, Poli, B, Posthaus, A, Pritchard, T W, Przysiezniak, H, Rees, D L, Rigby, D, Rison, M G, Robins, S A, Rodning, N L, Roney, J M, Ros, E, Rossi, A M, Rosvick, M, Routenburg, P, Rozen, Y, Runge, K, Runólfsson, O, Rust, D R, Rylko, R, Sasaki, M, Sbarra, C, Schaile, A D, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schmitt, B, Schröder, M, Schultz-Coulon, H C, Schulz, M, Schütz, P, Schwiening, J, Scott, W G, Settles, M, Shears, T G, Shen, B C, Shepherd-Themistocleous, C H, Sherwood, P, Siroli, G P, Sittler, A, Skillman, A, Skuja, A, Smith, A M, Smith, T J, Snow, G A, Sobie, Randall J, Söldner-Rembold, S, Springer, R W, Sproston, M, Stahl, A, Starks, M, Stegmann, C, Stephens, K, Steuerer, J, Stockhausen, B, Strom, D, Strumia, F, Szymanski, P, Tafirout, R, Taras, P, Tarem, S, Tecchio, M, Tesch, N, Thomson, M A, Von Törne, E, Towers, S, Tscheulin, M, Tsukamoto, T, Tsur, E, Turcot, A S, Turner-Watson, M F, Utzat, P, Van Kooten, R, Vasseur, G, Vikas, P, Vincter, M G, Vokurka, E H, Wäckerle, F, Wagner, A, Wagner, D L, Ward, C P, Ward, D R, Ward, J J, Watkins, P M, Watson, A T, Watson, N K, Weber, P, Wells, P S, Wermes, N, Wilkens, B, Wilson, G W, Wilson, J A, Wlodek, T, Wolf, G, Wotton, S A, Wyatt, T R, Xella, S M, Yekutieli, G, and Zacek, V
Subjects: Particle Physics - Experiment
Published: 1995

249. Measurement of the average b-baryon lifetime and the product branching ratio $f(b \rightarrow \Lambda_{b}) \cdot BR(\Lambda_{b} \rightarrow \Lambda \ell^{-}\overline{\nu}X)$

Author: Akers, R J, Alexander, Gideon, Allison, J, Altekamp, N, Ametewee, K A, Anderson, K J, Anderson, S, Arcelli, S, Asai, S, Axen, D A, Azuelos, Georges, Ball, A H, Barberio, E, Barlow, R J, Bartoldus, R, Batley, J Richard, Beaudoin, G, Bechtluft, J, Beck, A, Beck, G A, Beeston, C, Behnke, T, Bell, K W, Bella, G, Bentvelsen, Stanislaus Cornelius Maria, Berlich, P, Bethke, Siegfried, Biebel, O, Bloodworth, Ian J, Bock, P, Bosch, H M, Boutemeur, M, Braibant, S, Bright-Thomas, P G, Brown, R M, Buijs, A, Burckhart, Helfried J, Burgard, C, Bürgin, R, Capiluppi, P, Carnegie, R K, Carter, A A, Carter, J R, Chang, C Y, Charlesworth, C, Charlton, D G, Chu, S L, Clarke, P E L, Clayton, J C, Clowes, S G, Cohen, I, Conboy, J E, Cooke, O C, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, G M, Darling, C L, De Jong, S, del Pozo, L A, Deng, H, Dixit, M S, do Couto e Silva, E, Duboscq, J E, Duchovni, E, Duckeck, G, Duerdoth, I P, Dunwoody, U C, Edwards, J E G, Estabrooks, P G, Evans, H G, Fabbri, Franco Luigi, Fabbro, B, Fanti, M, Fath, P, Fiedler, F, Fierro, M, Fincke-Keeler, Margret, Fischer, H M, Folman, R, Fong, D G, Foucher, M, Fukui, H, Fürtjes, A, Gagnon, P, Gaidot, A, Gary, J W, Gascon, J, Gascon-Shotkin, S M, Geddes, N I, Geich-Gimbel, C, Gensler, S W, Gentit, F X, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, W R, Gillies, James D, Gingrich, D M, Goldberg, J, Goodrick, M J, Gorn, W, Grandi, C, Gross, E, Hanson, G G, Hansroul, M, Hapke, M, Hargrove, C K, Hart, P A, Hartmann, C, Hauschild, M, Hawkes, C M, Hawkings, R, Hemingway, Richard J, Herten, G, Heuer, R D, Hill, J C, Hillier, S J, Hilse, T, Hobson, P R, Hochman, D, Homer, R James, Honma, A K, Howard, R, Hughes-Jones, R E, Hutchcroft, D E, Igo-Kemenes, P, Imrie, D C, Jawahery, A, Jeffreys, P W, Jeremie, H, Jimack, Martin Paul, Joly, A, Jones, M, Jones, R W L, Jovanovic, P, Kanzaki, J I, Karlen, D A, Kawagoe, K, Kawamoto, T, Keeler, Richard K, Kellogg, R G, Kennedy, B W, King, B J, King, J, Kirk, J, Kluth, S, Kobayashi, T, Kobel, M, Koetke, D S, Kokott, T P, Komamiya, S, Kowalewski, R V, Kress, T, Krieger, P, Von Krogh, J, Kyberd, P, Lafferty, G D, Lafoux, H, Lahmann, R, Lai, W P, Lanske, D, Lauber, J, Layter, J G, Lee, A M, Lefebvre, E, Lellouch, Daniel, Letts, J, Levinson, L, Lloyd, S L, Loebinger, F K, Long, G D, Lorazo, B, Losty, Michael J, Ludwig, J, Luig, A, Malik, A, Mannelli, M, Marcellini, S, Markus, C, Martin, A J, Martin, J P, Mashimo, T, Matthews, W, Mättig, P, McKenna, J A, McKigney, E A, McMahon, T J, McNab, A I, Meijers, F, Menke, S, Merritt, F S, Mes, H, Michelini, Aldo, Mikenberg, G, Miller, D J, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Müller, U, Nellen, B, Nijjhar, B, O'Neale, S W, Oakham, F G, Odorici, F, Ögren, H O, Oldershaw, N J, Oram, C J, Oreglia, M J, Orito, S, Palmonari, F, Pansart, J P, Patrick, G N, Pearce, M J, Phillips, P D, Pilcher, J E, Pinfold, J L, Plane, D E, Poffenberger, P R, Poli, B, Posthaus, A, Pritchard, T W, Przysiezniak, H, Redmond, M W, Rees, D L, Rigby, D, Rison, M G, Robins, S A, Rodning, N L, Roney, J M, Ros, E, Rossi, A M, Rosvick, M, Routenburg, P, Rozen, Y, Runge, K, Runólfsson, O, Rust, D R, Sasaki, M, Sbarra, C, Schaile, A D, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schmitt, B, Schröder, M, Schultz-Coulon, H C, Schulz, M, Schütz, P, Schwiening, J, Scott, W G, Settles, M, Shears, T G, Shen, B C, Shepherd-Themistocleous, C H, Sherwood, P, Siroli, G P, Skillman, A, Skuja, A, Smith, A M, Smith, T J, Snow, G A, Sobie, Randall J, Söldner-Rembold, S, Springer, R W, Sproston, M, Stahl, A, Starks, M, Stegmann, C, Stephens, K, Steuerer, J, Stockhausen, B, Strom, D, Szymanski, P, Tafirout, R, Taras, P, Tarem, S, Tecchio, M, Teixeira-Dias, P, Tesch, N, Thomson, M A, Von Törne, E, Towers, S, Tscheulin, M, Tsukamoto, T, Turcot, A S, Turner-Watson, M F, Utzat, P, Van Kooten, R, Vasseur, G, Vikas, P, Vincter, M G, Wäckerle, F, Wagner, A, Wagner, D L, Ward, C P, Ward, D R, Ward, J J, Watkins, P M, Watson, A T, Watson, N K, Weber, P, Wells, P S, Wermes, N, Wilkens, B, Wilson, G W, Wilson, J A, Wlodek, T, Wolf, G, Wotton, S A, Wyatt, T R, Yekutieli, G, Zacek, V, Zeuner, W, and Zorn, G T
Subjects: Particle Physics - Experiment
Published: 1995

250. Measurement of the $\tau^{-} \rightarrow h^{-}h^{+}h^{-}\nu_{\tau}$ and $\tau^{-} \rightarrow h^{-}h^{+}h^{-} \geq 1\pi^{0}\nu_{\tau}$ branching ratios

Author: Akers, R J, Alexander, Gideon, Allison, J, Altekamp, N, Ametewee, K A, Anderson, K J, Anderson, S, Arcelli, S, Asai, S, Axen, D A, Azuelos, Georges, Ball, A H, Barberio, E, Barlow, R J, Bartoldus, R, Batley, J Richard, Beaudoin, G, Bethke, Siegfried, Beck, A, Beck, G A, Beeston, C, Behnke, T, Bell, K W, Bella, G, Bentvelsen, Stanislaus Cornelius Maria, Berlich, P, Bechtluft, J, Biebel, O, Bloodworth, Ian J, Bock, P, Bosch, H M, Boutemeur, M, Braibant, S, Bright-Thomas, P G, Brown, R M, Buijs, A, Burckhart, Helfried J, Bürgin, R, Burgard, C, Capiluppi, P, Carnegie, R K, Carter, A A, Carter, J R, Chang, C Y, Charlesworth, C, Charlton, D G, Chu, S L, Clarke, P E L, Clayton, J C, Clowes, S G, Cohen, I, Conboy, J E, Cooke, O C, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, G M, Darling, C L, De Jong, S, del Pozo, L A, Deng, H, Dixit, M S, do Couto e Silva, E, Duboscq, J E, Duchovni, E, Duckeck, G, Duerdoth, I P, Dunwoody, U C, Edwards, J E G, Estabrooks, P G, Evans, H G, Fabbri, Franco Luigi, Fabbro, B, Fanti, M, Fath, P, Fiedler, F, Fierro, M, Fincke-Keeler, Margret, Fischer, H M, Folman, R, Fong, D G, Foucher, M, Fukui, H, Fürtjes, A, Gagnon, P, Gaidot, A, Gary, J W, Gascon, J, Gascon-Shotkin, S M, Geddes, N I, Geich-Gimbel, C, Gensler, S W, Gentit, F X, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, W R, Gillies, James D, Goldberg, J, Gingrich, D M, Goodrick, M J, Gorn, W, Grandi, C, Gross, E, Hanson, G G, Hansroul, M, Hapke, M, Hargrove, C K, Hart, P A, Hartmann, C, Hauschild, M, Hawkes, C M, Hawkings, R, Hemingway, Richard J, Herten, G, Heuer, R D, Hill, J C, Hillier, S J, Hilse, T, Hobson, P R, Hochman, D, Homer, R James, Honma, A K, Howard, R, Hughes-Jones, R E, Hutchcroft, D E, Igo-Kemenes, P, Imrie, D C, Jawahery, A, Jeffreys, P W, Jeremie, H, Jimack, Martin Paul, Joly, A, Jones, M, Jones, R W L, Jovanovic, P, Karlen, D A, Kanzaki, J I, Kawagoe, K, Kawamoto, T, Keeler, Richard K, Kellogg, R G, Kennedy, B W, King, B J, King, J, Kirk, J, Kluth, S, Kobayashi, T, Kobel, M, Koetke, D S, Kokott, T P, Komamiya, S, Kowalewski, R V, Kress, T, Krieger, P, Von Krogh, J, Kyberd, P, Lafferty, G D, Lafoux, H, Lahmann, R, Lai, W P, Lanske, D, Lauber, J, Layter, J G, Lee, A M, Lefebvre, E, Lellouch, Daniel, Letts, J, Levinson, L, Lloyd, S L, Loebinger, F K, Long, G D, Lorazo, B, Losty, Michael J, Ludwig, J, Luig, A, Malik, A, Mannelli, M, Marcellini, S, Markus, C, Martin, A J, Martin, J P, Mashimo, T, Matthews, W, Mättig, P, McKenna, J A, McKigney, E A, McMahon, T J, McNab, A I, Meijers, F, Menke, S, Merritt, F S, Mes, H, Michelini, Aldo, Mikenberg, G, Miller, D J, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Müller, U, Nellen, B, Nijjhar, B, O'Neale, S W, Oakham, F G, Odorici, F, Ögren, H O, Oldershaw, N J, Oram, C J, Oreglia, M J, Orito, S, Palmonari, F, Pansart, J P, Patrick, G N, Pearce, M J, Phillips, P D, Pilcher, J E, Pinfold, J L, Plane, D E, Poffenberger, P R, Poli, B, Posthaus, A, Pritchard, T W, Przysiezniak, H, Redmond, M W, Rees, D L, Rigby, D, Rison, M G, Robins, S A, Rodning, N L, Roney, J M, Ros, E, Rossi, A M, Rosvick, M, Routenburg, P, Rozen, Y, Runge, K, Runólfsson, O, Rust, D R, Sasaki, M, Sbarra, C, Schaile, A D, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schmitt, B, Schröder, M, Schultz-Coulon, H C, Schütz, P, Schulz, M, Schwiening, J, Scott, W G, Settles, M, Shears, T G, Shen, B C, Shepherd-Themistocleous, C H, Sherwood, P, Siroli, G P, Skillman, A, Skuja, A, Smith, A M, Smith, T J, Snow, G A, Sobie, Randall J, Söldner-Rembold, S, Springer, R W, Sproston, M, Stahl, A, Starks, M, Stegmann, C, Stephens, K, Steuerer, J, Stockhausen, B, Strom, D, Szymanski, P, Tafirout, R, Taras, P, Tarem, S, Tecchio, M, Teixeira-Dias, P, Tesch, N, Thomson, M A, Von Törne, E, Towers, S, Tscheulin, M, Tsukamoto, T, Turcot, A S, Turner-Watson, M F, Utzat, P, Van Kooten, R, Vasseur, G, Vikas, P, Vincter, M G, Wäckerle, F, Wagner, A, Wagner, D L, Ward, C P, Ward, D R, Ward, J J, Watkins, P M, Watson, A T, Watson, N K, Weber, P, Wells, P S, Wermes, N, Wilkens, B, Wilson, G W, Wilson, J A, Wlodek, T, Wolf, G, Wotton, S A, Wyatt, T R, Yekutieli, G, Zacek, V, Zeuner, W, and Zorn, G T
Subjects: Particle Physics - Experiment
Published: 1995

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