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685 results on '"Koulbardis, A"'

101. Measurement of $��^0 ��$, $\bar{K}^0 n$, and $��^0 ��^0$ production in $K^- p$ interactions for $p_{K^-}$ between 514 and 750 MeV/$c$

Author: Prakhov, S., Nefkens, B. M. K., Bekrenev, V., Briscoe, W. J., Knecht, N., Koulbardis, A., Kozlenko, N., Kruglov, S., Lolos, G., Lopatin, I., Maru��i��, A., McDonald, S., Peaslee, D., Phaisangittisakul, N., Price, J. W., Shafi, A., Starostin, A., Staudenmaier, H. M., Strakovsky, I. I., and Supek, I.
Subjects: High Energy Physics - Experiment (hep-ex), Nuclear Theory, Physics::Accelerator Physics, FOS: Physical sciences, Nuclear Experiment
Abstract: Differential cross sections and hyperon polarizations have been measured for $\bar{K}^0 n$, $��^0 ��$, and $��^0 ��^0$ production in $K^- p$ interactions at eight $K^-$ momenta between 514 and 750 MeV/$c$. The experiment detected the multiphoton final states with the Crystal Ball spectrometer using a $K^-$ beam from the Alternating Gradient Synchrotron of BNL. The results provide significantly greater precision than the existing data, allowing a detailed reexamination of the excited hyperon states in our energy range.
Published: 2008
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102. Measurement of the invariant-mass spectrum for the two photons from the eta--->pi0 gamma gamma decay

Author: Prakhov, S., Nefkens, B. M. K., Allgower, C. E., Bekrenev, V., Briscoe, W. J., Comfort, J. R., Craig, K., Grosnick, D., Isenhower, D., Knecht, N., Koetke, D., Koulbardis, A., Kozlenko, N. G., Kruglov, S., Lolos, G., Lopatin, I., Manley, D. M., Manweiler, R., Marušić, Aljoša, McDonald, S., Olmsted, J., Papandreou, Z., Peaslee, D., Phaisangittisakul, N., Price, J. W., Ramirez, A. F., Sadler, M., Shafi, A., Spinka, H., Stanislaus, T. D. S., Starostin, A., Staudenmaier, H. M., and Supek, Ivan
Subjects: invariant mass spectrum, eta, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Experiment, Nuclear Experiment
Abstract: New results on the rare, doubly radiative decay eta -->pi0 gama gamma have been obtained from a revised analysis of the Crystal Ball experiment performed at the AGS. The analysis yields the first information on the dependence of the decay width, Gamma (eta-->pi0 gamma gamma), on the two-photon invariant mass squared, m2(gamma gamma). A re-evaluation of the branching ratio is also made, BR(eta-->pi0 gamma gamma= (2.21± 0.24stat± 0.47syst)×10-4 ; it implies that the decay width is Gamma(eta-->pi0 gamma gamma) =0.285± 0.031stat± 0.061syst eV. These results are close to predictions based on chiral perturbation theory with vector-meson dominance.
Published: 2008

103. Search for new particles in hadronic events with isolated photons

Author: M. Acciarri, A. Adam, O. Adriani, M. Aguilar-Benitez, S. Ahlen, B. Alpat, J. Alcaraz, G. Alemanni, J. Allaby, A. Aloisio, G. Alverson, M.G. Alviggi, G. Ambrosi, H. Anderhub, V.P. Andreev, T. Angelescu, D. Antreasyan, A. Arefiev, T. Azemoon, T. Aziz, P. Bagnaia, L. Baksay, R.C. Ball, S. Banerjee, K. Banicz, R. Barillère, L. Barone, P. Bartalini, A. Baschirotto, M. Basile, R. Battiston, A. Bay, F. Becattini, U. Becker, F. Behner, J. Berdugo, P. Berges, B. Bertucci, B.L. Betev, M. Biasini, A. Biland, G.M. Bilei, J.J. Blaising, S.C. Blyth, G.J. Bobbink, R. Bock, A. Böhm, B. Borgia, A. Boucham, D. Bourilkov, M. Bourquin, D. Boutigny, E. Brambilla, J.G. Branson, V. Brigljevic, I.C. Brock, A. Buijs, A. Bujak, J.D. Burger, W.J. Burger, J. Busenitz, A. Buytenhuijs, X.D. Cai, M. Campanelli, M. Capell, G. Cara Romeo, M. Caria, G. Carlino, A.M. Cartacci, J. Casaus, G. Castellini, R. Castello, F. Cavallari, N. Cavallo, C. Cecchi, M. Cerrada, F. Cesaroni, M. Chamizo, A. Chan, Y.H. Chang, U.K. Chaturvedi, M. Chemarin, A. Chen, G. Chen, G.M. Chen, H.F. Chen, H.S. Chen, M. Chen, G. Chiefari, C.Y. Chien, M.T. Choi, L. Cifarelli, F. Cindolo, C. Civinini, I. Clare, R. Clare, H.O. Cohn, G. Coignet, A.P. Colijn, N. Colino, S. Costantini, F. Cotorobai, B. de la Cruz, A. Csilling, T.S. Dai, R. D'Alessandro, R. de Asmundis, H. De Boeck, A. Degré, K. Deiters, P. Denes, F. DeNotaristefani, D. DiBitonto, M. Diemoz, D. van Dierendonck, F. Di Lodovico, C. Dionisi, M. Dittmar, A. Dominguez, A. Doria, I. Dorne, M.T. Dova, E. Drago, D. Duchesneau, P. Duinker, I. Duran, S. Dutta, S. Easo, Yu. Efremenko, H. El Mamouni, A. Engler, F.J. Eppling, F.C. Erné, J.P. Ernenwein, P. Extermann, M. Fabre, R. Faccini, S. Falciano, A. Favara, J. Fay, M. Felcini, C. Furetta, T. Ferguson, D. Fernandez, F. Ferroni, H. Fesefeldt, E. Fiandrini, J.H. Field, F. Filthaut, P.H. Fisher, G. Forconi, L. Fredj, K. Freudenreich, Yu. Galaktionov, S.N. Ganguli, S.S. Gau, S. Gentile, J. Gerald, N. Gheordanescu, S. Giagu, S. Goldfarb, J. Goldstein, Z.F. Gong, A. Gougas, G. Gratta, M.W. Gruenewald, V.K. Gupta, A. Gurtu, L.J. Gutay, K. Hangarter, B. Hartmann, A. Hasan, T. Hebbeker, A. Hervé, W.C. van Hoek, H. Hofer, H. Hoorani, S.R. Hou, G. Hu, M.M. Ilyas, V. Innocente, H. Janssen, B.N. Jin, L.W. Jones, P. de Jong, I. Josa-Mutuberria, A. Kasser, R.A. Khan, Yu. Kamyshkov, P. Kapinos, J.S. Kapustinsky, Y. Karyotakis, M. Kaur, M.N. Kienzle-Focacci, D. Kim, J.K. Kim, S.C. Kim, Y.G. Kim, W.W. Kinnison, A. Kirkby, D. Kirkby, J. Kirkby, D. Kiss, W. Kittel, A. Klimentov, A.C. König, I. Korolko, V. Koutsenko, A. Koulbardis, R.W. Kraemer, T. Kramer, W. Krenz, H. Kuijten, A. Kunin, P. Ladron de Guevara, G. Landi, C. Lapoint, K. Lassila-Perini, P. Laurikainen, M. Lebeau, A. Lebedev, P. Lebrun, P. Lecomte, P. Lecoq, P. Le Coultre, J.S. Lee, K.Y. Lee, C. Leggett, J.M. Le Goff, R. Leiste, M. Lenti, E. Leonardi, P. Levtchenko, C. Li, E. Lieb, W.T. Lin, F.L. Linde, L. Lista, Z.A. Liu, W. Lohmann, E. Longo, W. Lu, Y.S. Lu, K. Lübelsmeyer, C. Luci, D. Luckey, L. Ludovici, L. Luminari, W. Lustermann, W.G. Ma, A. Macchiolo, M. Maity, G. Majumder, L. Malgeri, A. Malinin, C. Maña, S. Mangla, P. Marchesini, A. Marin, J.P. Martin, F. Marzano, G.G.G. Massaro, K. Mazumdar, D. McNally, S. Mele, L. Merola, M. Meschini, W.J. Metzger, M. von der Mey, Y. Mi, A. Mihul, A.J.W. van Mil, G. Mirabelli, J. Mnich, B. Monteleoni, R. Moore, S. Morganti, R. Mount, S. Müller, F. Muheim, E. Nagy, S. Nahn, M. Napolitano, F. Nessi-Tedaldi, H. Newman, A. Nippe, H. Nowak, G. Organtini, R. Ostonen, D. Pandoulas, S. Paoletti, P. Paolucci, H.K. Park, G. Pascale, G. Passaleva, S. Patricelli, T. Paul, M. Pauluzzi, C. Paus, F. Pauss, D. Peach, Y.J. Pei, S. Pensotti, D. Perret-Gallix, S. Petrak, A. Pevsner, D. Piccolo, M. Pieri, J.C. Pinto, P.A. Piroué, E. Pistolesi, V. Plyaskin, M. Pohl, V. Pojidaev, H. Postema, N. Produit, R. Raghavan, G. Rahal-Callot, P.G. Rancoita, M. Rattaggi, G. Raven, P. Razis, K. Read, D. Ren, M. Rescigno, S. Reucroft, T. van Rhee, S. Riemann, B.C. Riemers, K. Riles, O. Rind, S. Ro, A. Robohm, J. Rodin, F.J. Rodriguez, B.P. Roe, S. Röhner, L. Romero, S. Rosier-Lees, Ph. Rosselet, W. van Rossum, S. Roth, J.A. Rubio, H. Rykaczewski, J. Salicio, E. Sanchez, A. Santocchia, M.E. Sarakinos, S. Sarkar, M. Sassowsky, G. Sauvage, C. Schäfer, V. Schegelsky, S. Schmidt-Kaerst, D. Schmitz, P. Schmitz, M. Schneegans, B. Schoeneich, N. Scholz, H. Schopper, D.J. Schotanus, J. Schwenke, G. Schwering, C. Sciacca, D. Sciarrino, J.C. Sens, L. Servoli, S. Shevchenko, N. Shivarov, V. Shoutko, J. Shukla, E. Shumilov, T. Siedenburg, D. Son, A. Sopczak, V. Soulimov, B. Smith, P. Spillantini, M. Steuer, D.P. Stickland, F. Sticozzi, H. Stone, B. Stoyanov, A. Straessner, K. Strauch, K. Sudhakar, G. Sultanov, L.Z. Sun, G.F. Susinno, H. Suter, J.D. Swain, X.W. Tang, L. Tauscher, L. Taylor, Samuel C.C. Ting, S.M. Ting, F. Tonisch, M. Tonutti, S.C. Tonwar, J. Tóth, A. Tsaregorodtsev, C. Tully, H. Tuchscherer, K.L. Tung, J. Ulbricht, U. Uwer, E. Valente, R.T. Van de Walle, G. Vesztergombi, I. Vetlitsky, G. Viertel, M. Vivargent, R. Völkert, H. Vogel, H. Vogt, I. Vorobiev, A.A. Vorobyov, An.A. Vorobyov, A. Vorvolakos, M. Wadhwa, W. Wallraff, J.C. Wang, X.L. Wang, Y.F. Wang, Z.M. Wang, A. Weber, F. Wittgenstein, S.X. Wu, S. Wynhoff, J. Xu, Z.Z. Xu, B.Z. Yang, C.G. Yang, X.Y. Yao, J.B. Ye, S.C. Yeh, J.M. You, C. Zaccardelli, An. Zalite, P. Zemp, Y. Zeng, Z. Zhang, Z.P. Zhang, B. Zhou, Y. Zhou, G.Y. Zhu, R.Y. Zhu, A. Zichichi, LEP (IHEF, IoP, FNWI), 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), Institut de Physique Nucléaire de Lyon (IPNL), 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), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), 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), L3, Acciarri, M., Adam, A., Adriani, O., Aguilarbenitez, M., Ahlen, S., Alpat, B., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., Anderhub, H., Andreev, V. P., Angelescu, T., Antreasyan, D., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Baksay, L., Ball, R. C., Banerjee, S., Banicz, K., Barillere, R., Barone, L., Bartalini, P., Baschirotto, A., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Blaising, J. J., Blyth, S. C., Bobbink, G. J., Bock, R., Bohm, A., Borgia, B., Boucham, A., Bourilkov, D., Bourquin, M., Boutigny, D., Brambilla, E., Branson, J. G., Brigljevic, V., Brocka, I. C., Buijs, A., Bujak, A., Burger, J. D., Burger, W. J., Busenitz, J., Buytenhuijs, A., Cai, X. D., Campanelli, M., Capell, M., Romeo, G. C., Caria, M., Carlino, G., Cartacci, A. M., Casaus, J., Castellini, G., Castello, R., Cavallari, F., Cavallo, N., Cecchi, C., Cerrada, M., Cesaroni, F., Chamizo, M., Chan, A., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Cifarelli, L., Cindolo, F., Civinini, C., Clare, I., Clare, R., Cohn, H. O., Coignet, G., Colijn, A. P., Colino, N., Costantini, S., Cotorobai, F., Delacruz, B., Csilling, A., Dai, T. S., Dalessandro, R., Deasmundis, R., Deboeck, H., Degre, A., Deiters, K., Denes, P., Denotaristefani, F., Dibitonto, D., Diemoz, M., Vandierendonck, D., Dilodovico, F., Dionisi, C., Dittmar, M., Dominguez, A., Doria, A., Dorne, I., Dova, M. T., Drago, E., Duchesneau, D., Duinker, P., Duran, I., Dutta, S., Easo, S., Efremenko, Y., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. C., Ernenwein, J. P., Extermann, P., Fabre, M., Faccini, R., Falciano, S., Favara, A., Fay, J., Felcini, M., Furetta, C., Ferguson, T., Fernandez, D., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Forconi, G., Fredj, L., Freudenreich, K., Galaktionov, Y., Ganguli, S. N., Gau, S. S., Gentile, S., Gerald, J., Gheordanescu, N., Giagu, S., Goldfarb, S., Goldstein, J., Gong, Z. F., Gougas, A., Gratta, G., Gruenewald, M. W., Gupta, V. K., Gurtu, A., Gutay, L. J., Hangarter, K., Hartmann, B., Hasan, A., Hebbeker, T., Herve, A., Vanhoek, W. C., Hofer, H., Hoorani, H., Hou, S. R., Hu, G., Ilyas, M. M., Innocente, V., Janssen, H., Jin, B. N., Jones, L. W., Dejong, P., Josamutuberria, I., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Kienzlefocacci, M. N., Kim, D., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, A., Kirkby, D., Kirkby, J., Kiss, D., Kittel, W., Klimentov, A., Konig, A. C., Korolko, I., Koustenko, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krenz, W., Kuijten, H., Kunin, A., Deguevara, P. L., Landi, G., Lapoint, C., Lassilaperini, K., Laurikainen, P., Lebeau, M., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, P., Lee, J. S., Lee, K. Y., Leggett, C., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Levtchenko, P., Li, C., Lieb, E., Lin, W. T., Linde, F. L., Lista, L., Liu, Z. A., Lohmann, W., Longo, E., Lu, W., Y. S., Lu, Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., W. G., Ma, Macchiolo, A., Maity, M., Majumder, G., Malgeri, L., Malinin, A., Mana, C., Mangla, S., Marchesini, P., Marin, A., Martin, J. P., Marzano, F., G. G. G., Mazumdar, K., Mcnally, D., Mele, S., Merola, Leonardo, Meschini, M., Metzger, W. J., Vondermey, M., Mi, Y., Mihul, A., A. J. W., Mirabelli, G., Mnich, J., Monteleoni, B., Moore, R., Morganti, S., Mount, R., Muller, S., Muheim, F., Nagy, E., Nahn, S., Napolitano, Marco, Nessitedaldi, F., Newman, H., Nippe, A., Nowak, H., Organtini, G., Ostonen, R., Pandoulas, D., Paoletti, S., Paolucci, P., Park, H. K., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Peach, D., Pei, Y. J., Pensotti, S., Perretgallix, D., Patrak, S., Pevsner, A., Piccolo, D., Pieri, M., Pinto, J. C., Piroue, P. A., Pistolesi, E., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Produit, N., Raghavan, R., Rahalcallot, G., Rancoita, P. G., Rattaggi, M., Raven, G., Razis, P., Read, K., Ren, D., Rescigno, M., Reucroft, S., Vanrhee, T., Riemann, S., Riemers, B. C., Riles, K., Rind, O., Ro, S., Robohm, A., Rodin, J., Rodriguez, F. J., Roe, B. P., Rohner, S., Romero, L., Rosierlees, S., Rosselet, P., Vanrossum, W., Roth, S., Rubio, J. A., Rykaczewski, H., Salicio, J., Sanchez, E., Santocchia, A., Sarakinos, M. E., Sarkar, S., Sassowsky, M., Sauvage, G., Schafer, C., Schegelsky, V., Schmidtkaerst, S., Schmitz, D., Schmitz, P., Schneegans, M., Schoeneich, B., Scholz, N., Schopper, H., Schotanus, D. J., Schwenke, J., Schwering, G., Sciacca, Crisostomo, Sciarrino, D., Sens, J. C., Servoli, L., Shevchenko, S., Shivarov, N., Shoutko, V., Shukla, J., Shumilov, E., Siedenburg, T., Son, D., Sopczak, A., Soulimov, V., Smith, B., Spillantini, P., Steuer, M., Stickland, D. P., Sticozzi, F., Stone, H., Stoyanov, B., Straessner, A., Strauch, K., Sudhakar, K., Sultanov, G., Sun, L. Z., Susinno, G. F., Suter, H., Swain, J. D., Tang, X. W., Tauscher, L., Taylor, L., S. C. C., Ting, S. M., Tonisch, F., Tonutti, M., Tonwar, S. C., Toth, J., Tsaregorodtsev, A., Tully, C., Tuchscherer, H., Tung, K. L., Ulbricht, J., Uwer, U., Valente, E., Vandewalle, R. T., Vesztergombi, G., Vetlitsky, I., Viertel, G., Vivargent, M., Volkert, R., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vorvolakos, A., Wadhwa, M., Wallraff, W., Wang, J. C., Wang, X. L., Wang, Y. F., Wang, Z. M., Weber, A., Wittgenstein, F., S. X., Wu, Wynhoff, S., Xu, J., Z. Z., Xu, Yang, B. Z., Yang, C. G., Yao, X. Y., J. B., Ye, Yeh, S. C., You, J. M., Zaccardelli, C., Zalite, A., Zemp, P., Zeng, Y., Zhang, Z., Zhang, Z. P., Zhou, B., Zhou, Y., Zhu, G. Y., Zhu, R. Y., and Zichichi, A.
Subjects: Nuclear and High Energy Physics, Particle physics, Photon, LUND MONTE-CARLO, Electron–positron annihilation, Physics beyond the Standard Model, Hadron, 01 natural sciences, JET FRAGMENTATION, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], COMPOSITE MODELS, 010306 general physics, Z-DECAYS, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), L3 EXPERIMENT, Physics, E+E-PHYSICS, PAIRS, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Detector, LEP, Photon emission, Higgs boson, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, High Energy Physics::Experiment, HIGGS-BOSON PRODUCTION, EMISSION, Particle Physics - Experiment
Abstract: A search for the neutral Higgs boson in the processes e(+)e(-) --> Z --> H-0 gamma --> and e(+)e(-) --> Z --> Z*H-0 --> has been performed using 2.8 million hadronic Z decays collected with the L3 detector at LEP from 1991 through 1994. No evidence for these processes has been observed. Upper limits at 95% confidence level for the corresponding cross sections have been set and the results have been compared with theoretical predictions beyond the Standard Model.
Published: 1996

104. Observation of multiple hard photon final states at root s=130-140 GeV at LEP

Author: M. Acciarri, A. Adam, O. Adriani, M. AguilarBenitez, S. Ahlen, B. Alpat, J. Alcaraz, G. Alemanni, J. Allaby, G. Alverson, G. Ambrosi, H. Anderhub, V. P. Andreev, T. Angelescu, D. Antreasyan, A. Arefiev, T. Azemoon, T. Aziz, P. Bagnaia, L. Baksay, R. C. Ball, S. Banerjee, K. Banicz, R. Barillere, L. Barone, P. Bartalini, A. Baschirotto, M. Basile, R. Battiston, A. Bay, F. Becattini, U. Becker, F. Behner, J. Berdugo, P. Berges, B. Bertucci, B. L. Betev, M. Biasini, A. Biland, G. M. Bilei, J. J. Blaising, S. C. Blyth, G. J. Bobbink, R. Bock, A. Bohm, B. Borgia, A. Boucham, D. Bourilkov, M. Bourquin, E. Brambilla, J. G. Branson, V. Brigljevic, I. C. Brock, A. Buijs, A. Bujak, J. D. Burger, W. J. Burger, J. Busenitz, A. Buytenhuijs, X. D. Cai, M. Campanelli, M. Capell, G. C. Romeo, M. Caria, G. Carlino, A. M. Cartacci, J. Casaus, G. Castellini, R. Castello, F. Cavallari, N. Cavallo, C. Cecchi, M. Cerrada, F. Cesaroni, M. Chamizo, A. Chan, Y. H. Chang, U. K. Chaturvedi, M. Chemarin, A. Chen, G. Chen, G. M. Chan, H. F. Chen, H. S. Chen, X. Chereau, C. Y. Chien, M. T. Choi, L. Cifarelli, F. Cindolo, C. Civinini, I. Clare, R. Clare, H. O. Cohn, G. Coignet, A. P. Colijn, N. Colino, V. Commichau, S. Costantini, F. Cotorobai, B. delaCruz, T. S. Dai, R. DAlessandro, R. deAsmundis, H. DeBoeck, A. Degre, K. Deiters, P. Denes, F. DeNotaristefani, D. DiBitonto, M. Diemoz, D. vanDierendonck, F. DiLodovico, C. Dionisi, M. Dittmar, A. Dominguez, A. Doria, I. Dorne, M. T. Dova, E. Drago, D. Duchesneau, P. Duinker, I. Duran, S. Dutta, S. Easo, Y. Efremenko, H. ElMamouni, A. Engler, F. J. Eppling, F. C. Erne, J. P. Ernenwein, P. Extermann, M. Fabre, R. Faccini, S. Falciano, A. Favara, J. Fay, M. Felcini, C. Furetta, T. Ferguson, D. Fernandez, F. Ferroni, H. Fesefeldt, E. Fiandrini, J. H. Field, F. Filthaut, P. H. Fisher, G. Forconi, L. Fredj, K. Freudenreich, Y. Galaktionov, S. N. Ganguli, S. S. Gau, S. Gentile, J. Gerald, N. Gheordanescu, S. Giagu, S. Goldfarb, J. Goldstein, Z. F. Gong, A. Gougas, G. Gratta, M. W. Gruenewald, V. K. Gupta, A. Gurtu, L. J. Gutay, K. Hangarter, B. Hartmann, A. Hasan, T. Hebbeker, A. Herve, W. C. vanHoek, H. Hofer, H. Hoorani, S. R. Hou, G. Hu, M. M. Ilyas, V. Innocente, H. Janssen, B. N. Jin, L. W. Jones, P. deJong, I. JosaMutuberria, A. Kasser, R. A. Khan, Y. Kamyshkov, P. Kapinos, J. S. Kapustinsky, Y. Karyotakis, M. Kaur, M. N. KienzleFocacci, D. Kim, J. K. Kim, S. C. Kim, Y. G. Kim, W. W. Kinnison, A. Kirby, D. Kirby, J. Kirby, W. Kittel, A. Klimentov, A. C. Konig, A. Kongeter, I. Korolko, V. Koutsenko, A. Koulbardis, R. W. Kraemer, T. Kramer, W. Krenz, H. Kuijten, A. Kunin, P. deGuevara, G. Landi, C. Lapoint, K. LassilaPerini, M. Lebeau, A. Lebedev, P. Lebrun, P. Lecomte, P. Lecoq, P. LeCoultre, J. S. Lee, K. Y. Lee, J. M. LeGoff, R. Leiste, M. Lenti, E. Leonardi, P. Levtchenko, C. Li, E. Lieb, W. T. Lin, F. L. Linde, B. Lindemann, L. Lista, Z. A. Liu, W. Lohmann, E. Longo, W. Lu, Y. S. Lu, K. Lubelsmeyer, C. Luci, D. Luckey, L. Ludovici, L. Luminari, W. Lustermann, W. G. Ma, A. Macchiolo, M. Maity, G. Majumder, L. Malgeri, A. Malinin, C. Mana, S. Mangla, P. Marchesini, A. Marin, J. P. Martin, F. Marzano, G. G. G., K. Mazumdar, D. McNally, R. R. McNeil, S. Mele, M. Meschini, W. J. Metzger, M. vonderMey, Y. Mi, A. Mihul, A. J. W., G. Mirabelli, J. Mnich, M. Moller, B. Monteleoni, R. Moore, S. Morganti, R. Mount, S. Muller, F. Muheim, E. Nagy, S. Nahn, F. NessiTedaldi, H. Newman, A. Nippe, H. Nowak, G. Organtini, R. Ostonen, D. Pandoulas, S. Paoletti, P. Paolucci, H. K. Park, G. Pascale, G. Passaleva, T. Paul, M. Pauluzzi, C. Paus, F. Pauss, D. Peach, Y. J. Pei, S. Pensotti, D. PerretGallix, S. Petrak, A. Pevsner, D. Piccolo, M. Pieri, J. C. Pinto, P. A. Piroue, E. Pistolesi, V. Plyaskin, M. Pohl, V. Pojidaev, H. Postema, N. Produit, R. Raghavan, G. RahalCallot, P. G. Rancoita, M. Rattaggi, G. Raven, P. Razis, K. Read, D. Ren, M. Rescigno, S. Reucroft, T. vanRhee, A. Ricker, S. Riemann, B. C. Riemers, K. Riles, S. Ro, A. Robohm, J. Rodin, F. J. Rodriguez, B. P. Roe, S. Rohner, L. Romero, S. RosierLees, P. Rosselet, W. vanRossum, S. Roth, J. A. Rubio, H. Rykaczewski, J. Salicio, E. Sanchez, A. Santocchia, M. E. Sarakinos, S. Sarkar, M. Sassowsky, C. Schafer, V. Schegelsky, S. SchmidtKaerst, D. Schmitz, P. Schmitz, M. Schneegans, B. Schoeneich, N. Scholz, H. Schopper, D. J. Schotanus, R. Schulte, K. Schultze, J. Schwenke, G. Schwering, D. Sciarrino, J. C. Sens, L. Servoli, S. Shevchenko, N. Shivarov, V. Shoutko, J. Shukla, E. Shumilov, T. Siedenburg, D. Son, A. Sopczak, B. Smith, P. Spillantini, M. Steuer, D. P. Stickland, F. Sticozzi, H. Stone, B. Stoyanov, A. Straessner, K. Strauch, K. Sudhakar, G. Sultanov, L. Z. Sun, G. F. Susinno, H. Suter, J. D. Swain, X. W. Tang, L. Tauscher, L. Taylor, S. C. C., S. M. Ting, O. Toker, F. Tonisch, M. Tonutti, S. C. Tonwar, J. Toth, A. Tsaregorodtsev, C. Tully, H. Tuchscherer, K. L. Tung, J. Ulbricht, U. Uwer, E. Valente, R. T. VandeWalle, I. Vetlitsky, G. Viertel, M. Vivargent, R. Volkert, H. Vogel, H. Vogt, I. Vorobiev, A. A. Vorobyov, A. Vorvolakos, M. Wadhwa, W. Wallraff, J. C. Wang, X. L. Wang, Y. F. Wang, Z. M. Wang, A. Weber, F. Wittgenstein, S. X. Wu, S. Wynhoff, J. Xu, Z. Z. Xu, B. Z. Yang, C. G. Yang, X. Y. Yao, J. B. Ye, S. C. Yeh, J. M. You, C. Zaccardelli, A. Zalite, P. Zemp, Y. Zeng, Z. P. Zhang, B. Zhou, Y. Zhou, G. Y. Zhu, R. Y. Zhu, A. Zichichi, ALOISIO, ALBERTO, ALVIGGI, MARIAGRAZIA, CHIEFARI, GIOVANNI, MEROLA, LEONARDO, NAPOLITANO, MARCO, PATRICELLI, SERGIO, SCIACCA, CRISOSTOMO, Acciarri, M., Adam, A., Adriani, O., Aguilarbenitez, M., Ahlen, S., Alpat, B., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., Anderhub, H., Andreev, V. P., Angelescu, T., Antreasyan, D., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Baksay, L., Ball, R. C., Banerjee, S., Banicz, K., Barillere, R., Barone, L., Bartalini, P., Baschirotto, A., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Blaising, J. J., Blyth, S. C., Bobbink, G. J., Bock, R., Bohm, A., Borgia, B., Boucham, A., Bourilkov, D., Bourquin, M., Brambilla, E., Branson, J. G., Brigljevic, V., Brock, I. C., Buijs, A., Bujak, A., Burger, J. D., Burger, W. J., Busenitz, J., Buytenhuijs, A., Cai, X. D., Campanelli, M., Capell, M., Romeo, G. C., Caria, M., Carlino, G., Cartacci, A. M., Casaus, J., Castellini, G., Castello, R., Cavallari, F., Cavallo, N., Cecchi, C., Cerrada, M., Cesaroni, F., Chamizo, M., Chan, A., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, G., Chan, G. M., Chen, H. F., Chen, H. S., Chereau, X., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Cifarelli, L., Cindolo, F., Civinini, C., Clare, I., Clare, R., Cohn, H. O., Coignet, G., Colijn, A. P., Colino, N., Commichau, V., Costantini, S., Cotorobai, F., Delacruz, B., Dai, T. S., Dalessandro, R., Deasmundis, R., Deboeck, H., Degre, A., Deiters, K., Denes, P., Denotaristefani, F., Dibitonto, D., Diemoz, M., Vandierendonck, D., Dilodovico, F., Dionisi, C., Dittmar, M., Dominguez, A., Doria, A., Dorne, I., Dova, M. T., Drago, E., Duchesneau, D., Duinker, P., Duran, I., Dutta, S., Easo, S., Efremenko, Y., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. C., Ernenwein, J. P., Extermann, P., Fabre, M., Faccini, R., Falciano, S., Favara, A., Fay, J., Felcini, M., Furetta, C., Ferguson, T., Fernandez, D., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Forconi, G., Fredj, L., Freudenreich, K., Galaktionov, Y., Ganguli, S. N., Gau, S. S., Gentile, S., Gerald, J., Gheordanescu, N., Giagu, S., Goldfarb, S., Goldstein, J., Gong, Z. F., Gougas, A., Gratta, G., Gruenewald, M. W., Gupta, V. K., Gurtu, A., Gutay, L. J., Hangarter, K., Hartmann, B., Hasan, A., Hebbeker, T., Herve, A., Vanhoek, W. C., Hofer, H., Hoorani, H., Hou, S. R., Hu, G., Ilyas, M. M., Innocente, V., Janssen, H., Jin, B. N., Jones, L. W., Dejong, P., Josamutuberria, I., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Kienzlefocacci, M. N., Kim, D., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirby, A., Kirby, D., Kirby, J., Kittel, W., Klimentov, A., Konig, A. C., Kongeter, A., Korolko, I., Koutsenko, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krenz, W., Kuijten, H., Kunin, A., Deguevara, P., Landi, G., Lapoint, C., Lassilaperini, K., Lebeau, M., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, P., Lee, J. S., Lee, K. Y., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Levtchenko, P., Li, C., Lieb, E., Lin, W. T., Linde, F. L., Lindemann, B., Lista, L., Liu, Z. A., Lohmann, W., Longo, E., Lu, W., Y. S., Lu, Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., W. G., Ma, Macchiolo, A., Maity, M., Majumder, G., Malgeri, L., Malinin, A., Mana, C., Mangla, S., Marchesini, P., Marin, A., Martin, J. P., Marzano, F., G. G. G., Mazumdar, K., Mcnally, D., Mcneil, R. R., Mele, S., Merola, Leonardo, Meschini, M., Metzger, W. J., Vondermey, M., Mi, Y., Mihul, A., A. J. W., Mirabelli, G., Mnich, J., Moller, M., Monteleoni, B., Moore, R., Morganti, S., Mount, R., Muller, S., Muheim, F., Nagy, E., Nahn, S., Napolitano, Marco, Nessitedaldi, F., Newman, H., Nippe, A., Nowak, H., Organtini, G., Ostonen, R., Pandoulas, D., Paoletti, S., Paolucci, P., Park, H. K., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Peach, D., Pei, Y. J., Pensotti, S., Perretgallix, D., Petrak, S., Pevsner, A., Piccolo, D., Pieri, M., Pinto, J. C., Piroue, P. A., Pistolesi, E., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Produit, N., Raghavan, R., Rahalcallot, G., Rancoita, P. G., Rattaggi, M., Raven, G., Razis, P., Read, K., Ren, D., Rescigno, M., Reucroft, S., Vanrhee, T., Ricker, A., Riemann, S., Riemers, B. C., Riles, K., Ro, S., Robohm, A., Rodin, J., Rodriguez, F. J., Roe, B. P., Rohner, S., Romero, L., Rosierlees, S., Rosselet, P., Vanrossum, W., Roth, S., Rubio, J. A., Rykaczewski, H., Salicio, J., Sanchez, E., Santocchia, A., Sarakinos, M. E., Sarkar, S., Sassowsky, M., Schafer, C., Schegelsky, V., Schmidtkaerst, S., Schmitz, D., Schmitz, P., Schneegans, M., Schoeneich, B., Scholz, N., Schopper, H., Schotanus, D. J., Schulte, R., Schultze, K., Schwenke, J., Schwering, G., Sciacca, Crisostomo, Sciarrino, D., Sens, J. C., Servoli, L., Shevchenko, S., Shivarov, N., Shoutko, V., Shukla, J., Shumilov, E., Siedenburg, T., Son, D., Sopczak, A., Smith, B., Spillantini, P., Steuer, M., Stickland, D. P., Sticozzi, F., Stone, H., Stoyanov, B., Straessner, A., Strauch, K., Sudhakar, K., Sultanov, G., Sun, L. Z., Susinno, G. F., Suter, H., Swain, J. D., Tang, X. W., Tauscher, L., Taylor, L., S. C. C., Ting, S. M., Toker, O., Tonisch, F., Tonutti, M., Tonwar, S. C., Toth, J., Tsaregorodtsev, A., Tully, C., Tuchscherer, H., Tung, K. L., Ulbricht, J., Uwer, U., Valente, E., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vivargent, M., Volkert, R., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vorvolakos, A., Wadhwa, M., Wallraff, W., Wang, J. C., Wang, X. L., Wang, Y. F., Wang, Z. M., Weber, A., Wittgenstein, F., S. X., Wu, Wynhoff, S., Xu, J., Z. Z., Xu, Yang, B. Z., Yang, C. G., Yao, X. Y., J. B., Ye, Yeh, S. C., You, J. M., Zaccardelli, C., Zalite, A., Zemp, P., Zeng, Y., Zhang, Z. P., Zhou, B., Zhou, Y., Zhu, G. Y., Zhu, R. Y., and Zichichi, A.
Subjects: BOSON PRODUCTION, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, GAMMA-GAMMA%22">E+E-->GAMMA-GAMMA, High Energy Physics::Experiment, DECAY, L3 EXPERIMENT, HIGH-ENERGIES
Abstract: We have studied the process e(+)e(-)-->n gamma (n greater than or equal to 2) at an average center-of-mass energy of 133 GeV using the L3 detector at LEP. For an integrated luminosity of 4.95 pb(-1) we find one gamma gamma gamma gamma(gamma) final state with only hard photons. The rates of both gamma gamma gamma and gamma gamma events are consistent with QED expectations. The cross section of the reaction e(+)e(-) -->gamma gamma(gamma) in the polar range 16 degrees
Published: 1996

105. Search for unstable sequential neutral and charged heavy leptons in e(+)e(-) annihilation at root s=130 and 136 GeV

Author: M. Acciarri, A. Adam, O. Adriani, M. AguilarBenitez, S. Ahlen, B. Alpat, J. Alcaraz, G. Alemanni, J. Allaby, G. Alverson, G. Ambrosi, H. Anderhub, V. P. Andreev, T. Angelescu, D. Antreasyan, A. Arefiev, T. Azemoon, T. Aziz, P. Bagnaia, L. Baksay, R. C. Ball, S. Banerjee, K. Banicz, R. Barillere, L. Barone, P. Bartalini, A. Baschirotto, M. Basile, R. Battiston, A. Bay, F. Becattini, U. Becker, F. Behner, J. Berdugo, P. Berges, B. Bertucci, B. L. Betev, M. Biasini, A. Biland, G. M. Bilei, J. J. Blaising, S. C. Blyth, G. J. Bobbink, R. Bock, A. Bohm, B. Borgia, A. Boucham, D. Bourilkov, M. Bourquin, E. Brambilla, J. G. Branson, V. Brigljevic, I. C. Brock, A. Buijs, A. Bujak, J. D. Burger, W. J. Burger, J. Busenitz, A. Buytenhuijs, X. D. Cai, M. Campanelli, M. Capell, G. C. Romeo, M. Caria, G. Carlino, A. M. Cartacci, J. Casaus, G. Castellini, R. Castello, F. Cavallari, N. Cavallo, C. Cecchi, M. Cerrada, F. Cesaroni, M. Chamizo, A. Chan, Y. H. Chang, U. K. Chaturvedi, M. Chemarin, A. Chen, G. Chen, G. M. Chen, H. F. Chen, H. S. Chen, X. Chereau, C. Y. Chien, M. T. Choi, L. Cifarelli, F. Cindolo, C. Civinini, I. Clare, R. Clare, H. O. Cohn, G. Coignet, A. P. Colijn, N. Colino, V. Commichau, S. Costantini, F. Cotorobai, B. delaCruz, T. S. Dai, R. DAlessandro, R. deAsmundis, H. DeBoeck, A. Degre, K. Deiters, P. Denes, F. DeNotaristefani, D. DiBitonto, M. Diemoz, D. vanDierendonck, F. DiLodovico, C. Dionisi, M. Dittmar, A. Dominguez, A. Doria, I. Dorne, M. T. Dova, E. Drago, D. Duchesneau, P. Duinker, I. Duran, S. Dutta, S. Easo, Y. Efremenko, H. ElMamouni, A. Engler, F. J. Eppling, F. C. Erne, J. P. Ernenwein, P. Extermann, M. Fabre, R. Faccini, S. Falciano, A. Favara, J. Fay, M. Felcini, C. Furetta, T. Ferguson, D. Fernandez, F. Ferroni, H. Fesefeldt, E. Fiandrini, J. H. Field, F. Filthaut, P. H. Fisher, G. Forconi, L. Fredj, K. Freudenreich, Y. Galaktionov, S. N. Ganguli, S. S. Gau, S. Gentile, J. Gerald, N. Gheordanescu, S. Giagu, S. Goldfarb, J. Goldstein, Z. F. Gong, A. Gougas, G. Gratta, M. W. Gruenewald, V. K. Gupta, A. Gurtu, L. J. Gutay, K. Hangarter, B. Hartmann, A. Hasan, T. Hebbeker, A. Herve, W. C. vanHoek, H. Hofer, H. Hoorani, S. R. Hou, G. Hu, M. M. Ilyas, V. Innocente, H. Janssen, B. N. Jin, J. W. Jones, P. deJong, I. JosaMutuberria, A. Kasser, R. A. Khan, Y. Kamyshkov, P. Kapinos, J. S. Kapustinsky, Y. Karyotakis, M. Kaur, M. N. KienzleFocacci, D. Kim, J. K. Kim, S. C. Kim, Y. G. Kim, W. W. Kinnison, A. Kirkby, D. Kirkby, J. Kirkby, W. Kittel, A. Klimentov, A. C. Konig, A. Kongeter, I. Korolko, V. Koutsenko, A. Koulbardis, R. W. Kraemer, T. Kramer, W. Krenz, H. Kuijten, A. Kunin, P. L. deGuevara, G. Landi, C. Lapoint, K. LassilaPerini, M. Lebeau, A. Lebedev, P. Lebrun, P. Lecomte, P. Lecoq, P. LeCoultre, J. S. Lee, K. Y. Lee, J. M. LeGoff, R. Leiste, M. Lenti, E. Leonardi, P. Levtchenko, C. Li, E. Lieb, W. T. Lin, F. L. Linde, B. Lindemann, L. Lista, Z. A. Liu, W. Lohmann, E. Longo, W. Lu, Y. S. Lu, K. Lubelsmeyer, C. Luci, D. Luckey, L. Ludovici, L. Luminari, W. Lustermann, W. G. Ma, A. Macchiolo, M. Maity, G. Majumder, L. Malgeri, A. Malinin, C. Mana, S. Mangla, P. Marchesini, A. Marin, J. P. Martin, F. Marzano, G. G. G., K. Mazumder, D. McNally, R. R. McNeil, S. Mele, M. Meschini, E. J. Metzger, M. vonderMey, Y. Mi, A. Mihul, A. J. W., G. Mirabelli, J. Mnich, M. Moller, B. Monteleoni, R. Moore, S. Morganti, R. Mount, S. Muller, F. Muheim, E. Nagy, S. Nahn, F. NessiTedaldi, H. Newman, A. Nippe, H. Nowak, G. Organtini, R. Ostonen, D. Pandoulas, S. Paoletti, P. Paolucci, H. K. Park, G. Pascale, G. Passaleva, T. Paul, M. Pauluzzi, C. Paus, F. Pauss, D. Peach, Y. J. Pei, S. Pensotti, D. PerretGallix, S. Petrak, A. Pevsner, D. Piccolo, M. Pieri, J. C. Pinto, P. A. Piroue, E. Pistolesi, V. Plyaskin, M. Pohl, V. Pojidaev, H. Postema, N. Produit, R. Raghavan, G. RahalCallot, P. G. Rancoita, M. Rattaggi, G. Raven, P. Razis, K. Read, D. Ren, M. Rescigno, S. Reucroft, T. vanRhee, A. Ricker, S. Riemann, B. C. Riemers, K. Riles, S. Ro, A. Robohm, J. Rodin, F. J. Rodriguez, B. P. Roe, S. Rohner, L. Romero, S. RosierLees, P. Rosselet, W. vanRossum, S. Roth, J. A. Rubio, H. Rykaczewski, J. Salicio, E. Sanchez, A. Santocchia, M. E. Sarakinos, S. Sarkar, M. Sassowsky, C. Schafer, V. Schegelsky, S. SchmidtKaerst, D. Schmitz, P. Schmitz, M. Schneegans, B. Schoeneich, N. Scholz, H. Schopper, D. J. Schotanus, R. Schulte, K. Schultze, J. Schwenke, G. Schwering, D. Sciarrino, J. C. Sens, L. Servoli, S. Shevchenko, N. Shivarov, V. Shoutko, J. Shukla, E. Shumilov, T. Siedenburg, D. Son, A. Sopczak, B. Smith, P. Spillantini, M. Steuer, D. P. Stickland, F. Sticozzi, H. Stone, B. Stoyanov, A. Straessner, K. Strauch, K. Sudhakar, G. Sultanov, L. Z. Sun, G. F. Susinno, H. Suter, J. D. Swain, X. W. Tang, L. Tauscher, L. Taylor, S. C. C., S. M. Ting, O. Toker, F. Tonisch, M. Tonutti, S. C. Tonwar, J. Toth, A. Tsaregorodtsev, C. Tully, H. Tuchscherer, K. L. Tung, J. Ulbricht, U. 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C., Banerjee, S., Banicz, K., Barillere, R., Barone, L., Bartalini, P., Baschirotto, A., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Blaising, J. J., Blyth, S. C., Bobbink, G. J., Bock, R., Bohm, A., Borgia, B., Boucham, A., Bourilkov, D., Bourquin, M., Brambilla, E., Branson, J. G., Brigljevic, V., Brock, I. C., Buijs, A., Bujak, A., Burger, J. D., Burger, W. J., Busenitz, J., Buytenhuijs, A., Cai, X. D., Campanelli, M., Capell, M., Romeo, G. C., Caria, M., Carlino, G., Cartacci, A. M., Casaus, J., Castellini, G., Castello, R., Cavallari, F., Cavallo, N., Cecchi, C., Cerrada, M., Cesaroni, F., Chamizo, M., Chan, A., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chereau, X., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Cifarelli, L., Cindolo, F., Civinini, C., Clare, I., Clare, R., Cohn, H. 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Subjects: PHYSICS, NEUTRINOS, LIMITS, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, PARTICLES, LEP, QUARKS, MIRROR FERMIONS, Z-DECAYS, DETECTOR, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), L3 EXPERIMENT
Abstract: A search for unstable sequential neutral and charged heavy leptons has been made at center-of-mass energies 130 and 136 GeV with the L3 detector at LEP. The neutral leptons are assumed to decay via mixing to electrons and muons. No evidence for their existence was found. We exclude unstable Dirac neutrinos for masses below 59.3 (57.9) GeV and unstable Majorana neutrinos below 48.6 (47.2) GeV if the neutrino couples to the electron(muon) family. We exclude unstable charged heavy leptons for masses below 61 GeV for a wide range of the associated neutral lepton mass.
Published: 1996

106. Measurement of the Michel parameters and the average tau neutrino helicity from tau decays in e(+)e(-)->tau(+)tau(-)

Author: Dai-Sik Kim, G. Landi, B. Monteleoni, S. X. Wu, F. Sticozzi, D. DiBitonto, M. Steuer, J. S. Lee, K. Banicz, T. Siedenburg, Y. G. Kim, Y. H. Chang, George Alverson, M. Schneegans, J. S. Kapustinsky, Bryan R. Smith, B. L. Betev, D. Perret-Gallix, Igor Vorobiev, K. Sudhakar, P. Levtchenko, Panos A Razis, M. von der Mey, Howard A. Stone, F. Tonisch, Simone Paoletti, Suchandra Dutta, C. Lapoint, J. B. Ye, A. C. Weber, Peter H. Fisher, O. Toker, Sc Yeh, L. Romero, Roberto Castello, Z. A. Liu, A. Vorvolakos, X. Y. Yao, J. G. Xu, M. W. Gruenewald, I. Josa-Mutuberria, J. Rodin, Manjit Kaur, A. Straessner, Luca Lista, D. Fernandez, Y. Karyotakis, J. Berdugo, Juven Wang, R. Barillère, E. J. Sanchez, Wt Lin, M. Bourquin, K. Strauch, M. Lenti, Stefan Roth, Francesca Cavallari, C. Leggett, Sabine Riemann, Zheng Wang, J. P. Martin, Tariq Aziz, Joachim Mnich, A. Robohm, J. M. Le Goff, N. Gheordanescu, O. Rind, G. Mirabelli, G. Y. Zhu, E. Shumilov, S. Pensotti, Valery Schegelsky, Antonino Zichichi, H. Anderhub, V. Shoutko, J. C. Sens, Jasper Kirkby, M. Sassowsky, A. J.W. van Mil, H. Rykaczewski, Giovanni Organtini, B. C. Riemers, A. Adam, Zhenyu Zhang, G. Forconi, L. J. Gutay, U. Becker, K. Lübelsmeyer, Crisostomo Sciacca, Jozsef Toth, R. Völkert, M. Tonutti, Mingshui Chen, S. Easo, Kati Lassila-Perini, V. Plyaskin, P. Extermann, Salvatore Mele, Christoph Schäfer, B. Z. Yang, H. Hofer, K. L. Tung, J. Gerald, R. Faccini, X. L. Wang, G. G.G. Massaro, Attilio Santocchia, Dimitri Bourilkov, I. Duran, M. Pauluzzi, P. Spillantini, S. P. Ahlen, P. Zemp, Jean Fay, F. J. Rodriguez, S. Reucroft, D. Boutigny, M. T. Choi, R. de Asmundis, Francesca Nessi-Tedaldi, M. T. Dova, A. Köngeter, Aaron Dominguez, E. Fiandrini, J. A. Rubio, F. Cesaroni, M. Chamizo, B. Alpat, C-Q. Li, Emilio Leonardi, D. Ren, Felicitas Pauss, F. J. Eppling, L. W. Jones, M. E. Sarakinos, J. D. Burger, S. S. Gau, H. O. Cohn, J. Shukla, G. Rahal-Callot, S. M. Ting, D. 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J., Bock, R., Bohm, A., Borgia, B., Boucham, A., Bourilkov, D., Bourquin, M., Boutigny, D., Brambilla, E., Branson, J. G., Brigljevic, V., Brock, I. C., Buijs, A., Bujak, A., Burger, J. D., Burger, W. J., Busenitz, J., Buytenhuijs, A., Cai, X. D., Campanelli, M., Capell, M., Romeo, G. C., Caria, M., Carlino, G., Cartacci, A. M., Casaus, J., Castellini, G., Castello, R., Cavallari, F., Cavallo, N., Cecchi, C., Cerrada, M., Cesaroni, F., Chamizo, M., Chan, A., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Cifarelli, L., Cindolo, F., Civinini, C., Clare, I., Clare, R., Cohn, H. O., Coignet, G., Colijn, A. P., Colino, N., Commichau, V., Costantini, S., Cotorobai, F., Delacruz, B., Dai, T. S., Dalessandro, R., Deasmundis, R., Deboeck, H., Degre, A., Deiters, K., Denes, P., Denotaristefani, F., Dibitonto, D., Diemoz, M., Vandierendonck, D., Dilodovico, F., Dionisi, C., Dittmar, M., Dominguez, A., Doria, A., Dorne, I., Dova, M. T., Drago, E., Duchesneau, D., Duinker, P., Duran, I., Dutta, S., Easo, S., Efremenko, Y., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. C., Ernenwein, J. P., Extermann, P., Fabre, M., Faccini, R., Falciano, S., Favara, A., Fay, J., Felcini, M., Furetta, C., Ferguson, T., Fernandez, D., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Forconi, G., Fredj, L., Freudenreich, K., Galaktionov, Y., Ganguli, S. N., Gau, S. S., Gentile, S., Gerald, J., Gheordanescu, N., Giagu, S., Goldfarb, S., Goldstein, J., Gong, Z. F., Gougas, A., Gratta, G., Gruenewald, M. W., Gupta, V. K., Gurtu, A., Gutay, L. J., Hangarter, K., Hartmann, B., Hasan, A., Hebbeker, T., Herve, A., Vanhoek, W. C., Hofer, H., Hoorani, H., Hou, S. R., Hu, G., Ilyas, M. M., Innocente, V., Janssen, H., Jin, B. N., Jones, L. W., Dejong, P., Josamutuberria, I., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Kienzlefocacci, M. N., Kim, D., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, A., Kirkby, D., Kirkby, J., Kittel, W., Klimentov, A., Konig, A. C., Kongeter, A., Korolko, I., Koutsenko, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krenz, W., Kuijten, H., Kunin, A., Deguevara, P. L., Landi, G., Lapoint, C., Lassilaperini, K., Lebeau, M., Lebedev, A., Lebrun, P., Lecomte, P., Lecoultre, P., Lee, J. S., Lee, K. Y., Leggett, C., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Levtchenko, P., Li, C., Lieb, E., Lin, W. T., Linde, F. L., Lindemann, B., Lista, L., Ziu, Z. A., Lohmann, W., Longo, E., Lu, W., Y. S., Lu, Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., W. G., Ma, Macchiolo, A., Maity, M., Majumder, G., Malgeri, L., Malinin, A., Mana, C., Mangla, S., Marchesini, P., Marin, A., Martin, J. P., Marzano, F., G. G. G., Mazumdar, K., Mcnally, D., Mele, S., Merola, Leonardo, Meschini, M., Metzger, W. J., Vondermey, M., Mi, Y., Mihul, A., A. J. W., Mirabelli, G., Mnich, J., Moller, M., Monteleoni, B., Moore, R., Morganti, S., Mount, R., Muller, S., Muheim, F., Nagy, E., Nahn, S., Napolitano, Marco, Nessitedaldi, F., Newman, H., Nippe, A., Nowak, H., Organtini, G., Ostonen, R., Pandoulas, D., Paoletti, S., Paolucci, P., Park, H. K., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Peach, D., Pei, Y. J., Pensotti, S., Perretgallix, D., Petrak, S., Pevsner, A., Piccolo, D., Pieri, M., Pinto, J. C., Piroue, P. A., Pistolesi, E., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Produit, N., Raghavan, R., Rahalcallot, G., Rancoita, P. G., Rattaggi, M., Raven, G., Razis, P., Read, K., Ren, D., Rescigno, M., Reucroft, S., Vanrhee, T., Ricker, A., Riemann, S., Riemers, B. C., Riles, K., Rind, O., Ro, S., Robohm, A., Rodin, J., Rodriguez, F. J., Roe, B. P., Rohner, S., Romero, L., Rosierlees, S., Rosselet, P., Vanrossum, V., Roth, S., Rubio, J. A., Rykaczewski, H., Salicio, J., Sanchez, E., Santocchia, A., Sarakinos, M. E., Sarkar, S., Sassowsky, M., Sauvage, G., Schafer, C., Schegelsky, V., Schmidtkaerst, S., Schmitz, D., Schmitz, P., Schneegans, M., Schoeneich, B., Scholz, N., Schopper, H., Schotanus, D. J., Schulte, R., Schultze, K., Schwenke, J., Schwering, G., Sciacca, Crisostomo, Sciarrino, D., Sens, J. C., Servoli, L., Shevchenko, S., Shivarov, N., Shoutko, V., Shukla, J., Shumilov, E., Siedenburg, T., Son, D., Sopczak, A., Soulimov, V., Smith, B., Spillantini, P., Steuer, M., Stickland, D. P., Sticozzi, F., Stone, H., Stoyanov, B., Straessner, A., Strauch, K., Sudhakar, K., Sultanov, G., Sun, L. Z., Susinno, G. F., Suter, H., Swain, J. D., Tang, X. W., Taucher, L., Taylor, L., S. C. C., Ting, S. M., Toker, O., Tonisch, F., Tonutti, M., Tonwar, S. C., Toth, J., Tsaregorodtsev, A., Tully, C., Tuchscherer, H., Tung, K. L., Ulbricht, J., Uwer, U., Valente, E., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vivargent, M., Volkert, R., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vorvolakos, A., Wadhwa, M., Wallraff, W., Wang, J. C., Wang, X. L., Wang, Y. F., Wang, Z. M., Weber, A., Wittgenstein, F., S. X., Wu, Wynhoff, S., Xu, J., Z. Z., Xu, Yang, B. Z., Yang, C. G., Yao, X. Y., J. B., Ye, Yeh, S. C., You, J. M., Zaccardelli, C., Zalite, A., Zemp, P., Zeng, Y., Zhang, Z., Zhang, Z. P., Zhou, B., Zhou, Y., Zhu, G. Y., Zhu, R. Y., and Zichichi, A.
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, MUON DECAY, POLARIZATION, leptons, Electron–positron annihilation, Hadron, Física, Helicity, Spectral line, Nuclear physics, hadrons, ASYMMETRY, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Michel parameters, Neutrino, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Ciencias Exactas, Charged current, Lepton
Abstract: The Michel parameters ϱ, η, ξ, and ξδ, the chirality parameter ξh and the τ polarization Pτ are measured using 32012 τ pair decays. Their values are extracted from the energy spectra of leptons and hadrons in τ− → l−νlντ and τ− → π−ντ decays, the energy and decay angular distributions in τ− → ϱ−ντ decays, and the correlations in the energy spectra and angular distributions of the decay products. Assuming universality in leptonic and semileptonic τ decays, the results are ϱ = 0.794±0.039±0.031, η = 0.25±0.17±0.11, ξ = 0.94±0.21±0.07, ξδ = 0.81±0.14±0.06, ξh = −0.970±0.053±0.011, and Pτ = −0.154±0.018±0.012. The measurement is in agreement with the V-A hypothesis for the weak charged current., Facultad de Ciencias Exactas
Published: 1996

107. Measurement of hadron and lepton-pair production at 130 GeV<root s<140 GeV at LEP

Author: Acciarri, M., Adam, A., Adriani, O., AguilarBenitez, M., Ahlen, S., Alpat, B., Alcaraz, J., Allaby, J., Aloisio, A., Alverson, G., Alviggi, M.G., Commichau, V., Koulbardis, A., Kraemer, R.W., Banerjee, S., Kramer, T., Mangla, S., Krenz, W., Kuijten, H., Kunin, A., Cai, X.D., Fabre, M., Guevara, P.L. de, Landi, G., Lapoint, C., Costantini, S., LassilaPerini, K., Laurikainen, P., Lebeau, M., Maolinbay, M., Banicz, K., Lebedev, A., Faccini, R., Hu, G., Lebrun, P., Lecomte, P., Lecoq, P., LeCoultre, P., Lee, J., Cotorobai, F., Lee, K.Y., Leggett, C., Marchesini, P., Falciano, S., LeGoff, J.M., Luci, C., Leiste, R., Barillere, R., Lenti, M., Leonardi, E., Levtchenko, P., Li, C., Lieb, E., Cruz, B. de la, Favara, A., Lin, W.T., Baschirotto, A., Campanelli, M., Linde, F.L., Lindemann, B., Lista, L., Liu, Z.A., Barone, L., Lohmann, W., Longo, E., Fay, J., Lu, W., Lu, Y.S., Dai, T.S., Capell, M., Marin, A., Lubelsmeyer, K., Martin, J.P., He, J.T., Asmundis, R. de, Marzano, F., Jones, L.W., Massaro, G.G.G., Mazumdar, K., McNally, D., McNeil, R.R., Romero, G.C., Mele, S., Merola, L., Meschini, M., Basile, M., Hebbeker, T., Felcini, M., Metzger, W.J., Ambrosi, G., Mey, M. von der, Mi, Y., Mihul, A., Caria, M., Mil, A.J.W. van, Mirabelli, G., Mnich, J., Moller, M., Ferguson, T., Monteleoni, B., Herve, A., Moore, R., Battiston, R., DeBoeck, H., Morganti, S., Carlino, G., Mount, R., Muller, S., Muheim, F., Fernandez, D., Nagy, E., Nahn, S., Napolitano, M., Hoek, W.C. van, NessiTedaldi, F., Newman, H., Bay, A., Cartacci, A.M., Degre, A., Becattini, F., Maity, M., Becker, U., Behner, F., Bencze, G.L., Berdugo, J., Berges, P., Hofer, H., Bertucci, B., Betev, B.L., Casaus, J., Biasini, M., Buijs, A., Biland, A., Deiters, K., Bilei, G.M., Blaising, J.J., Blyth, S.C., Bobbink, G.J., Bock, R., Hoorani, H., Bohm, A., DeNotaristefani, F., Fernandez, G., Borgia, B., Boucham, A., Bourilkov, D., Bourquin, M., Denes, E., Boutigny, D., Brambilla, E., Branson, J.G., Brigljevic, V., Hou, S.R., Ferroni, F., Castellini, G., Brock, I.C., Castello, R., Luckey, D., Bagnaia, P., Cavallari, F., Cavallo, N., Cecchi, C., Cerrada, M., Cesaroni, F., Antreasyan, D., Chamizo, M., Chan, A., Chang, Y.H., DiBitonto, D., Ludovici, L., Chaturvedi, U.K., Coignet, G., Chemarin, M., Chen, A., Chen, C., Fesefeldt, H., Chen, G., Chen, G.M., Chen, H.F., Chen, H.S., Cherau, X., Luminari, L., Chiefari, G., Diemoz, M., Ilyas, M.M., Chien, C.Y., Fiandrini, E., Choi, M.T., Cifarelli, L., Cindolo, F., Civinini, C., Clare, I., Clare, R., Lustermann, W., Coan, T.E., Cohn, H.O., Walle, R.T. van de, Field, J.H., Innocente, V., Dierendonck, D. van, DiLodovico, F., Anderhub, H., Dionisi, C., Dittmar, M., Dominguez, A., Bartalini, P., Doria, A., Dorne, I., Filthaut, F., Dova, M.T., Drago, E., Janssen, H., Duchesneau, D., Duinker, P., Duran, I., Andreev, V.P., Dutta, S., Ma, W.G., Easo, S., Jong, P. de, Efremenko, Y., ElMamouni, H., Engler, A., Eppling, F.J., Jin, B.N., Erne, F.C., Ernenwein, J.P., Extermann, P., Fabbretti, R., Macchiolo, A., Fisher, P.H., Angelescu, T., Forconi, G., Bujak, A., Dalessandro, R., Fredj, L., Freudenreich, K., Gailloud, M., Galaktionov, Y., Arefiev, A., Ganguli, S.N., GarciaAbia, P., Gau, S.S., JosaMutuberria, I., Burger, J.D., Gentile, S., Hasan, A., Gerald, J., Gheordanescu, N., Giagu, S., Goldfarb, S., Goldstein, J., Gong, Z.F., Azemoon, T., Gonzalez, E., Burger, J.W., Gougas, A., Kasser, A., Majumder, G., Goujon, D., Gratta, C., Gruenewald, M.W., Gupta, V.K., Gurtu, A., Gustafson, H.R., Gutay, L.J., Burgos, C., Hangarter, K., Aziz, T., Hartmann, B., Malgeri, L., Khan, R.A., Schotanus, D.J., Kamyshkov, Y., Colijn, A.P., Baksay, L., Kapinos, P., Denes, P., Kapustinsky, J.S., Karyotakis, Y., Kaur, M., KienzleFocacci, M.N., Malinin, A., Kim, D., Kim, J.K., Kim, S.C., Kim, J.G., Colino, N., Busenitz, J., Kinnison, W.W., Ball, R.C., Kirkby, A., Kirkby, J., Kittel, W., Mana, C., Klimentov, A., Konig, A.C., Koffeman, E., Kongeter, A., Buytenhuijs, A., Koutsendo, V., Acciarri, M., Adam, A., Adriani, O., Aguilarbenitez, M., Ahlen, S., Alpat, B., Alcaraz, J., Allaby, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., Anderhub, H., Andreev, V. P., Angelescu, T., Antreasyan, D., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Baksay, L., Ball, R. C., Banerjee, S., Banicz, K., Barillere, R., Barone, L., Bartalini, P., Baschirotto, A., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Bencze, G. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Blaising, J. J., Blyth, S. C., Bobbink, G. J., Bock, R., Bohm, A., Borgia, B., Boucham, A., Bourilkov, D., Bourquin, M., Boutigny, D., Brambilla, E., Branson, J. G., Brigljevic, V., Brock, I. C., Buijs, A., Bujak, A., Burger, J. D., Burger, J. W., Burgos, C., Busenitz, J., Buytenhuijs, A., Cai, X. D., Campanelli, M., Capell, M., Romero, G. C., Caria, M., Carlino, G., Cartacci, A. M., Casaus, J., Castellini, G., Castello, R., Cavallari, F., Cavallo, N., Cecchi, C., Cerrada, M., Cesaroni, F., Chamizo, M., Chan, A., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, C., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Cherau, X., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Cifarelli, L., Cindolo, F., Civinini, C., Clare, I., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colijn, A. P., Colino, N., Commichau, V., Costantini, S., Cotorobai, F., Delacruz, B., Dai, T. S., Dalessandro, R., Deasmundis, R., Deboeck, H., Degre, A., Deiters, K., Denes, E., Denes, P., Denotaristefani, F., Dibitonto, D., Diemoz, M., Vandierendonck, D., Dilodovico, F., Dionisi, C., Dittmar, M., Dominguez, A., Doria, A., Dorne, I., Dova, M. T., Drago, E., Duchesneau, D., Duinker, P., Duran, I., Dutta, S., Easo, S., Efremenko, Y., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. C., Ernenwein, J. P., Extermann, P., Fabbretti, R., Fabre, M., Faccini, R., Falciano, S., Favara, A., Fay, J., Felcini, M., Ferguson, T., Fernandez, D., Fernandez, G., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Forconi, G., Fredj, L., Freudenreich, K., Gailloud, M., Galaktionov, Y., Ganguli, S. N., Garciaabia, P., Gau, S. S., Gentile, S., Gerald, J., Gheordanescu, N., Giagu, S., Goldfarb, S., Goldstein, J., Gong, Z. F., Gonzalez, E., Gougas, A., Goujon, D., Gratta, C., Gruenewald, M. W., Gupta, V. K., Gurtu, A., Gustafson, H. R., Gutay, L. J., Hangarter, K., Hartmann, B., Hasan, A., J. T., He, Hebbeker, T., Herve, A., Vanhoek, W. C., Hofer, H., Hoorani, H., Hou, S. R., Hu, G., Ilyas, M. M., Innocente, V., Janssen, H., Jin, B. N., Jones, L. W., Dejong, P., Josamutuberria, I., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Kienzlefocacci, M. N., Kim, D., Kim, J. K., Kim, S. C., Kim, J. G., Kinnison, W. W., Kirkby, A., Kirkby, J., Kittel, W., Klimentov, A., Konig, A. C., Koffeman, E., Kongeter, A., Koutsendo, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krenz, W., Kuijten, H., Kunin, A., Deguevara, P. L., Landi, G., Lapoint, C., Lassilaperini, K., Laurikainen, P., Lebeau, M., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, P., Lee, J., Lee, K. Y., Leggett, C., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Levtchenko, P., Li, C., Lieb, E., Lin, W. T., Linde, F. L., Lindemann, B., Lista, L., Liu, Z. A., Lohmann, W., Longo, E., Lu, W., Y. S., Lu, Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., W. G., Ma, Macchiolo, A., Maity, M., Majumder, G., Malgeri, L., Malinin, A., Mana, C., Mangla, S., Maolinbay, M., Marchesini, P., Marin, A., Martin, J. P., Marzano, F., G. G. G., Mazumdar, K., Mcnally, D., Mcneil, R. R., Mele, S., Merola, Leonardo, Meschini, M., Metzger, W. J., Vondermey, M., Mi, Y., Mihul, A., A. J. W., Mirabelli, G., Mnich, J., Moller, M., Monteleoni, B., Moore, R., Morganti, S., Mount, R., Muller, S., Muheim, F., Nagy, E., Nahn, S., Napolitano, Marco, Nessitedaldi, F., and Newman, H.
Subjects: BHABHA SCATTERING, Z-PEAK, Z-RESONANCE, Z-LINE-SHAPE, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, QED CORRECTIONS, ANNIHILATION, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), L3 EXPERIMENT
Abstract: We report on the first measurements of e(+)e(-) annihilations into hadrons and lepton pairs at centre-of-mass energies between 130 GeV and 140 GeV. In a total luminosity of 5 pb(-1) collected with the L3 detector at LEP we select 1577 hadronic and 401 lepton-pair events. The measured cross sections and leptonic forward-backward asymmetries agree well with the Standard Model predictions.
Published: 1996

108. Study of the structure of hadronic events and determination of alpha(s) at root s=130 GeV and 136 GeV

Author: Acciarri, M, Adam, A, Adriani, O, AguilarBenitez, M, Ahlen, S, Alpat, B, Alcaraz, J, Allaby, J, Aloisio, A, Alverson, G, Alviggi, MG, Ambrosi, G, Anderhub, H, Andreev, VP, Angelescu, T, Antreasyan, D, Arefiev, A, Azemoon, T, Aziz, T, Bagnaia, P, Baksay, L, Ball, RC, Banerjee, S, Banicz, K, Barillere, R, Barone, L, Bartalini, P, Baschirotto, A, Basile, M, Battiston, R, Bay, A, Becattini, F, Becker, U, Behner, F, Bencze, GL, Berdugo, J, Berges, P, Bertucci, B, Betev, BL, Biasini, M, Biland, A, Bilei, GM, Blaising, JJ, Blyth, SC, Bobbink, GJ, Bock, R, Bohm, A, Borgia, B, Boucham, A, Bourilkov, D, Bourquin, M, Boutigny, D, Brambilla, E, Branson, JG, Brigljevic, V, Brock, IC, Buijs, A, Bujak, A, Burger, JD, Burger, WJ, Burgos, C, Busenitz, J, Buytenhuijs, A, Cai, XD, Campanelli, M, Capell, M, Romeo, GC, Caria, M, Carlino, G, Cartacci, AM, Casaus, J, Castellini, G, Castello, R, Cavallari, F, Cavallo, N, Cecchi, C, Cerrada, M, Cesaroni, F, Chamizo, M, Chan, A, Chang, YH, Chaturvedi, UK, Chemarin, M, Chen, A, Chen, C, Chen, G, Chen, GM, Chen, HF, Chen, HS, Chereau, X, Chiefari, G, Chien, CY, Choi, MT, Cifarelli, L, Cindolo, F, Civinini, C, Clare, I, Clare, R, Coan, TE, Cohn, HO, Coignet, G, Colijn, AP, Colino, N, Commichau, V, Costantini, S, Cotorobai, F, delaCruz, B, Dai, TS, DAlessandro, R, deAsmundis, R, DeBoeck, H, Degre, A, Deiters, K, Denes, E, Denes, P, DeNotaristefani, F, DiBitonto, D, Diemoz, M, vanDierendonck, D, DiLodovico, F, Dionisi, C, Dittmar, M, Dominguez, A, Doria, A, Dorne, I, Dova, MT, Drago, E, Duchesneau, D, Duinker, P, Duran, I, Dutta, S, Easo, S, Efremenko, Y, ElMamouni, H, Engler, A, Eppling, FJ, Erne, FC, Ernenwein, JP, Extermann, P, Fabbretti, R, Fabre, M, Faccini, R, Falciano, S, Favara, A, Fay, J, Felcini, M, Ferguson, T, Fernandez, D, Fernandez, G, Ferroni, F, Fesefeldt, H, Fiandrini, E, Field, JH, Filthaut, F, Fisher, PH, Forconi, G, Fredj, L, Freudenreich, K, Gailloud, M, Galaktionov, Y, Ganguli, SN, GarciaAbia, P, Gau, SS, Gentile, S, Gerald, J, Gheordanescu, N, Giagu, S, Goldfarb, S, Goldstein, J, Gong, ZF, Gonzalez, E, Gougas, A, Goujon, D, Gratta, G, Gruenewald, MW, Gupta, VK, Gurtu, A, Gustafson, HR, Gutay, LJ, Hangarter, K, Hartmann, B, Hasan, A, He, JT, Hebbeker, T, Herve, A, vanHoek, WC, Hofer, H, Hoorani, H, Hou, SR, Hu, G, Ilyas, MM, Innocente, V, Janssen, H, Jin, BN, Jones, LW, deJong, P, JosaMutuberria, I, Kasser, A, Khan, RA, Kamyshkov, Y, Kapinos, P, Kapustinsky, JS, Karyotakis, Y, Kaur, M, KienzleFocacci, MN, Kim, D, Kim, JK, Kim, SC, Kim, YG, Kinnison, WW, Kirkby, A, Kirkby, D, Kirkby, J, Kittel, W, Klimentov, A, Konig, AC, Koffeman, E, Kongeter, A, Koutsenko, V, Koulbardis, A, Kraemer, RW, Kramer, T, Krenz, W, Kuijten, H, Kunin, A, deGuevara, PL, Landi, G, Lapoint, C, LassilaPerini, K, Laurikainen, P, Lebeau, M, Lebedev, A, Lebrun, P, Lecomte, P, Lecoq, P, LeCoultre, P, Lee, JS, Lee, KY, Leggett, C, LeGoff, JM, Leiste, R, Lenti, M, Leonardi, E, Levtchenko, P, Li, C, Lieb, E, Lin, WT, Linde, FL, 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T., Vetlitsky, I., Viertel, G., Vivargent, M., Volkert, R., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, J. C., Wang, X. L., Wang, Y. F., Wang, Z. M., Weber, A., Weill, R., Willmott, C., Wittgenstein, F., S. X., Wu, Wynhoff, S., Xu, J., Z. Z., Xu, Yang, B. Z., Yang, C. G., Yao, X. Y., J. B., Ye, Yeh, S. C., You, J. M., Zaccardelli, C., Zalite, A., Zemp, P., Zeng, J. Y., Zeng, Y., Zhang, Z., Zhang, Z. P., Zhou, B., Zhou, G. J., Zhou, Y., Zhu, G. Y., Zhu, R. Y., Zichichi, A., and B. C. C.
Subjects: CHARGED-PARTICLE MULTIPLICITIES, LUND MONTE-CARLO, QCD MODELS, DISTRIBUTIONS, PETRA ENERGIES, Z0, E+E-ANNIHILATION, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), JET FRAGMENTATION, DECAYS, L3 EXPERIMENT
Abstract: We present a study of the structure of hadronic events recorded by the L3 detector at center-of-mass energies of 130 and 136 GeV. The data sample corresponds to an integrated luminosity of 5 pb(-1) collected during the high energy run of 1995. The shapes of the event shape distributions and the energy dependence of their mean values are well reproduced by QCD models. From a comparison of the data with resummed O(alpha(s)(2)) QCD calculations, we determine the strong coupling constant to be alpha(s)(133 GeV) = 0.107 +/- 0.005(exp) +/- 0.006(theor).
Published: 1996

109. SEARCH FOR ANOMALOUS Z-]GAMMA-GAMMA-GAMMA EVENTS AT LEP

Author: Acciarri, M, Adam, A, Adriani, O, Aguilarbenitez, M, Ahlen, S, Alcaraz, J, Aloisio, A, Alverson, G, Alviggi, Mg, Ambrosi, G, An, Q, Anderhub, H, Anderson, Al, Andreev, Vp, Angelescu, T, Antonov, L, Antreasyan, D, Alkhazov, G, Arce, P, Arefiev, A, Azemoon, T, Aziz, T, Baba, Pvks, Bagnaia, Paolo, Bakken, Ja, Baksay, L, Ball, Rc, Banerjee, S, Banicz, K, Barillere, R, Barone, Luciano Maria, Baschirotto, A, Basile, M, Battiston, R, Bay, A, Becattini, F, Becker, U, Behner, F, Bencze, Gl, Berdugo, J, Berges, P, Bertucci, B, Betev, Bl, Biasini, M, Biland, A, Bilei, Gm, Bizzarri, R, Blaising, Jj, Bobbink, Gl, Bock, R, Bohm, A, Borgia, B, Boucham, A, Bourilkov, D, Bourquin, M, Boutigny, D, Bouwens, B, Brambilla, E, Branson, Jg, Brigljevic, V, Brock, Ic, Brooks, M, Bujak, A, Burger, Jd, Burger, Wj, Burgos, C, Busenitz, J, Buytenhuijs, A, Bykov, A, Cai, Xd, Capell, M, Romeo, Gc, Caria, M, Carlino, G, Cartacci, Am, Casaus, J, Castello, R, Cavallo, N, Cerrada, M, Cesaroni, F, Chamizo, M, Chang, Yh, Chaturvedi, Uk, Chemarin, M, Chen, A, Chen, C, Chen, G, Chen, Gm, Chen, Hf, Chen, Hs, Chen, M, Chiefari, G, Chien, Cy, Choi, Mt, Chung, S, Cifarelli, L, Cindolo, F, Civinini, C, Clare, I, Clare, R, Coan, Te, Cohn, Ho, Coignet, G, Colino, N, Commichau, V, Costantini, S, Cotorobai, F, Delacruz, B, Cui, Xt, Cui, Xy, Dai, Ts, Dalessandro, R, Deasmundis, R, Degre, A, Deiters, K, Denes, E, Denes, P, Denotaristefani, F, Dibitonto, D, Diemoz, M, Dimitrov, Hr, Dionisi, C, Dittmar, M, Dorne, I, Dova, Mt, Drago, E, Duchesneau, D, Duhem, F, Duinker, P, Duran, I, Dutta, S, Easo, S, Elmamouni, H, Engler, A, Eppling, Fj, Erne, Fc, Extermann, P, Fabbretti, R, Fabre, M, Falciano, S, Favara, A, Fay, J, Felcini, M, Ferguson, T, Fernandez, D, Fernandez, G, Ferroni, Fernando, Fesefeldt, H, Fiandrini, E, Field, Jh, Filthaut, F, Fisher, Ph, Forconi, G, Fredj, L, Freudenreich, K, Gailloud, M, Galaktionov, Y, Gallo, E, Ganguli, Sn, Garciaabia, P, Gau, Ss, Gentile, Simonetta, Gerald, J, Gheordanescu, N, Giagu, Stefano, Goldfarb, S, Goldstein, J, Gong, Zf, Gonzalez, E, Gougas, A, Goujon, D, Gratta, G, Gruenewald, Mw, Gu, C, Guanziroli, M, Gupta, Vk, Gurtu, A, Gustafson, Hr, Gutay, Lj, Hartmann, B, Hasan, A, Hauschildt, D, He, Jt, Hebbeker, T, Herbert, M, Herve, A, Hilgers, K, Hofer, H, Hoorani, H, Hou, Sr, Hu, G, Ille, B, Ilyas, Mm, Innocente, V, Janssen, H, Jin, Bn, Jones, Lw, Dejong, P, Josamutuberria, I, Kasser, A, Khan, Ra, Kamyshkov, Y, Kapinos, P, Kapustinsky, Js, Karyotakis, Y, Kaur, M, Khokhar, S, Kienzlefocacci, Mn, Kim, D, Kim, Jk, Kim, Sc, Kim, Yg, Kinnison, Ww, Kirkby, A, Kirkby, D, Kirkby, J, Kirsch, S, Kittel, W, Klimentov, A, Konig, Ac, Koffeman, E, Kornadt, O, Koutsenko, V, Koulbardis, A, Kraemer, Rw, Kramer, T, Krastev, Vr, Krenz, W, Kuijten, H, Kunin, A, Deguevara, Pl, Landi, G, Lanzano, S, Laurikainen, P, Lebedev, A, Lebrun, P, Lecomte, P, Lecoq, P, Lecoultre, P, Lee, Dm, Lee, Js, Lee, Ky, Leedom, I, Leggett, C, Legoff, Jm, Leiste, R, Lenti, M, Leonardi, E, Levtchenko, P, Li, C, Lieb, E, Lin, Wt, Linde, Fl, Lindemann, B, Lista, L, Liu, Y, Lohmann, W, Longo, E, Lu, W, Lu, Ys, Lubbers, Jm, Lubelsmeyer, K, Luci, Claudio, Luckey, D, Ludovici, L, Luminari, L, Lustermann, W, Ma, Wg, Macdermott, M, Maity, M, Malgeri, L, Malik, R, Malinin, A, Mana, C, Mangla, S, Maolinbay, M, Marchesini, P, Marin, A, Martin, Jp, Marzano, F, Massaro, Ggg, Mazumdar, K, Mcmahon, T, Mcnally, D, Mele, S, Merk, M, Merola, L, Meschini, M, Metzger, Wj, Mi, Y, Mihul, A, Mills, Gb, Mir, Y, Mirabelli, G, Mnich, J, Moller, M, Monaco, V, Monteleoni, B, Morand, R, Morganti, S, Moulai, Ne, Mount, R, Muller, S, Nagy, E, Napolitano, M, Nessitedaldi, F, Newman, H, Niaz, Ma, Nippe, A, Nowak, H, Organtini, Giovanni, Ostonen, R, Pandoulas, D, Paoletti, S, Paolucci, P, Pascale, G, Passaleva, G, Patricelli, S, Paul, T, Pauluzzi, M, Paus, C, Pauss, F, Pei, Yj, Pensotti, S, Perretgallix, D, Pevsner, A, Piccolo, D, Pieri, M, Pinto, Jc, Piroue, Pa, Pistolesi, E, Plasil, F, Plyaskin, V, Pohl, M, Pojidaev, V, Postema, H, Produit, N, Qian, Jm, Qureshi, Kn, Raghavan, R, Rahalcallot, G, Rancoita, Pg, Rattaggi, M, Raven, G, Razis, P, Read, K, Redaelli, M, Ren, D, Ren, Z, Rescigno, M, Reucroft, S, Ricker, A, Riemann, S, Riemers, Bc, Riles, K, Rind, O, Rizvi, Ha, Ro, S, Robohm, A, Rodriguez, Fj, Roe, Bp, Rohner, M, Rohner, S, Romero, L, Rosierlees, S, Rosmalen, R, Rosselet, P, Vanrossum, W, Roth, S, Rubbia, A, Rubio, Ja, Rykaczewski, H, Salicio, J, Salicio, Jm, Sanchez, E, Sanders, Gs, Santocchia, A, Sarakinos, Me, Sarkar, S, Sartorelli, G, Sassowsky, M, Sauvage, G, Schafer, C, Schegelsky, V, Schmitz, D, Schmitz, P, Schneegans, M, Scholz, N, Schopper, H, Schotanus, Dj, Shotkin, S, Schreiber, Hj, Shukla, J, Schulte, R, Schultze, K, Schwenke, J, Schwering, G, Sciacca, C, Sehgal, R, Seiler, Pg, Sens, Jc, Servoli, L, Sheer, I, Shevchenko, S, Shi, Xr, Shumilov, E, Shoutko, V, Son, D, Sopczak, A, Soulimov, V, Spartiotis, C, Spickermann, T, Spillantini, P, Steuer, M, Stickland, Dp, 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Anderhub, H., Anderson, A. L., Andreev, V. P., Angelescu, T., Antonov, L., Antreasyan, D., Alkhazov, G., Arce, P., Arefiev, A., Azemoon, T., Aziz, T., P. V. K., Bagnaia, P., Bakken, J. A., Baksay, L., Ball, R. C., Banerjee, S., Banicz, K., Barillere, R., Barone, L., Baschirotto, A., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Bencze, G. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Bizzarri, R., Blaising, J. J., Bobbink, G. L., Bock, R., Bohm, A., Borgia, B., Boucham, A., Bourilkov, D., Bourquin, M., Boutigny, D., Bouwens, B., Brambilla, E., Branson, J. G., Brigljevic, V., Brock, I. C., Brooks, M., Bujak, A., Burger, J. D., Burger, W. J., Burgos, C., Busenitz, J., Buytenhuijs, A., Bykov, A., Cai, X. D., Capell, M., Romeo, G. C., Caria, M., Carlino, G., Cartacci, A. M., Casaus, J., Castello, R., Cavallo, N., Cerrada, M., Cesaroni, F., Chamizo, M., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, C., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Chung, S., Cifarelli, L., Cindolo, F., Civinini, C., Clare, I., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colino, N., Commichau, V., Costantini, S., Cotorobai, F., Delacruz, B., Cui, X. T., Cui, X. Y., Dai, T. S., Dalessandro, R., Deasmundis, R., Degre, A., Deiters, K., Denes, E., Denes, P., Denotaristefani, F., Dibitonto, D., Diemoz, M., Dimitrov, H. R., Dionisi, C., Dittmar, M., Dorne, I., Dova, M. T., Drago, E., Duchesneau, D., Duhem, F., Duinker, P., Duran, I., Dutta, S., Easo, S., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. C., Extermann, P., Fabbretti, R., Fabre, M., Falciano, S., Favara, A., Fay, J., Felcini, M., Ferguson, T., Fernandez, D., Fernandez, G., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Forconi, G., Fredj, L., Freudenreich, K., Gailloud, M., Galaktionov, Y., Gallo, E., Ganguli, S. N., Garciaabia, P., Gau, S. S., Gentile, S., Gerald, J., Gheordanescu, N., Giagu, S., Goldfarb, S., Goldstein, J., Gong, Z. F., Gonzalez, E., Gougas, A., Goujon, D., Gratta, G., Gruenewald, M. W., Gu, C., Guanziroli, M., Gupta, V. K., Gurtu, A., Gustafson, H. R., Gutay, L. J., Hartmann, B., Hasan, A., Hauschildt, D., J. T., He, Hebbeker, T., Herbert, M., Herve, A., Hilgers, K., Hofer, H., Hoorani, H., Hou, S. R., Hu, G., Ille, B., Ilyas, M. M., Innocente, V., Janssen, H., Jin, B. N., Jones, L. W., Dejong, P., Josamutuberria, I., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Khokhar, S., Kienzlefocacci, M. N., Kim, D., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, A., Kirkby, D., Kirkby, J., Kirsch, S., Kittel, W., Klimentov, A., Konig, A. C., Koffeman, E., Kornadt, O., Koutsenko, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krastev, V. R., Krenz, W., Kuijten, H., Kunin, A., Deguevara, P. L., Landi, G., Lanzano, S., Laurikainen, P., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, P., Lee, D. M., Lee, J. S., Lee, K. Y., Leedom, I., Leggett, C., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Levtchenko, P., Li, C., Lieb, E., Lin, W. T., Linde, F. L., Lindemann, B., Lista, L., Liu, Y., Lohmann, W., Longo, E., Lu, W., Y. S., Lu, Lubbers, J. M., Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., W. G., Ma, Macdermott, M., Maity, M., Malgeri, L., Malik, R., Malinin, A., Mana, C., Mangla, S., Maolinbay, M., Marchesini, P., Marin, A., Martin, J. P., Marzano, F., G. G. G., Mazumdar, K., Mcmahon, T., Mcnally, D., Mele, S., Merk, M., Merola, Leonardo, Meschini, M., Metzger, W. J., Mi, Y., Mihul, A., Mills, G. B., Mir, Y., Mirabelli, G., Mnich, J., Moller, M., Monaco, V., Monteleoni, B., Morand, R., Morganti, S., Moulai, N. E., Mount, R., Muller, S., Nagy, E., Napolitano, Marco, Nessitedaldi, F., Newman, H., Niaz, M. 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T., Vetlitsky, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, J. C., Wang, X. L., Wang, Y. F., Wang, Z. M., Weber, A., Weill, R., Willmott, C., Wittgenstein, F., Wright, D., S. X., Wu, Wynhoff, S., Z. Z., Zu, Yang, B. Z., Yang, C. G., Yang, G., Yao, X. Y., C. H., Ye, J. B., Ye, Ye, Q., Yeh, S. C., You, J. M., Yanus, N., Yzerman, M., Zaccardelli, C., Zemp, P., Zeng, M., Zeng, Y., Zhang, D. H., Zhang, Z. P., Zhou, B., Zhou, G. J., Zhou, J. F., Zhu, R. Y., Zichichi, A., and B. C. C.
Subjects: ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, PHOTONS, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Particle Physics - Experiment, L3 EXPERIMENT
Abstract: We have searched for anomalous Z --> gamma gamma gamma events with the L3 detector at LEP. No significant deviations from the expected QED e(+)e(-)-->gamma gamma gamma events are observed. The branching ratio upper limit for a composite Z decaying directly into three photons is found to be 1.0 x 10(-1) at 95% C.L. The branching ratio upper limits for the process Z-->gamma X,X-->gamma gamma are in the range of 0.4 to 1.3 x 10(-5), depending on the mass and width of the scalar particle X. In the context of a model with magnetic monopoles coupling to the Z, we find BR(Z-->gamma gamma gamma) < 0.8 x 10(-5) at 95% C.L; this results in a lower mass limit of 510 GeV for a magnetic monopole.
Published: 1995

110. Study of the Ks(0)Ks(0) Final-State in 2-Photon Collisions

Author: M. ACCIARRI, A. ADAM, O. ADRIANI, M. AGUILARBENITEZ, S. AHLEN, B. ALPAT, J. ALCARAZ, J. ALLABY, G. ALVERSON, G. AMBROSI, Q. AN, H. ANDERHUB, V. P. ANDREEV, T. ANGELESCU, D. ANTREASYAN, A. AREFIEV, T. AZEMOON, T. AZIZ, P. V. K., P. BAGNAIA, L. BAKSAY, R. C. BALL, S. BANERJEE, K. BANICZ, R. BARILLERE, L. BARONE, P. BARTALINI, A. BASCHIROTTO, M. BASILE, R. BATTISTON, A. BAY, F. BECATTINI, U. BECKER, F. BEHNER, G. L. BENCZE, J. BERDUGO, P. BERGES, B. BERTUCCI, B. L. BETEV, M. BIASINI, A. BILAND, G. M. BILEI, R. BIZZARRI, J. J. BLAISING, G. J. BOBBINK, R. BOCK, A. BOHM, B. BORGIA, A. BOUCHAM, D. BOURILKOV, M. BOURQUIN, D. BOUTIGNY, S. BRACCINI, E. BRAMBILLA, J. G. BRANSON, V. BRIGLJEVIC, I. C. BROCK, A. BUIJS, A. BUJAK, J. D. BURGER, W. J. BURGER, C. BURGOS, J. BUSENITZ, A. BUYTENHUIJS, X. D. CAI, M. CAPELL, G. C. ROMEO, M. CARIA, G. CARLINO, A. M. CARTACCI, J. CASAUS, G. CASTELLINI, R. CASTELLO, F. CAVALLARI, N. CAVALLO, C. CECCHI, M. CERRADA, F. CESARONI, M. CHAMIZO, A. CHAN, Y. H. CHANG, U. K. CHATURVEDI, M. CHEMARIN, A. CHEN, C. CHEN, G. CHEN, G. M. CHEN, H. F. CHEN, H. S. CHEN, M. CHEN, C. Y. CHIEN, M. T. CHOI, L. CIFARELLI, F. CINDOLO, C. CIVININI, I. CLARE, R. CLARE, T. E. COAN, H. O. COHN, G. COIGNET, A. P. COLIJN, N. COLINO, V. COMMICHAU, S. COSTANTINI, F. COTOROBAI, B. DELACRUZ, X. T. CUI, X. Y. CUI, T. S. DAI, R. DALESSANDRO, R. DEASMUNDIS, H. DEBOECK, D. DEGRE, K. DEITERS, E. DENES, P. DENES, F. DENOTARISTEFANI, D. DIBITONTO, M. DIEMOZ, D. VANDIERENDONCK, F. DILODOVICO, C. DIONISI, M. DITTMAR, A. DOMINGUEZ, A. DORIA, I. DORNE, M. T. DOVA, E. DRAGO, D. DUCHESNEAU, P. DUINKER, I. DURAN, S. DUTTA, S. EASO, Y. EFREMENKO, H. ELMAMOUNI, A. ENGLER, F. J. EPPLING, F. C. ERNE, J. P. ERNENWEIN, P. EXTERMANN, R. FABBRETTI, M. FABRE, R. FACCINI, S. FALCIANO, A. FAVARA, J. FAY, M. FELCINI, T. FERGUSON, D. FERNANDEZ, G. FERNANDEZ, F. FERRONI, H. FESEFELDT, E. FIANDRINI, J. H. FIELD, F. FILTHAUT, P. H. FISHER, G. FORCONI, L. FREDJ, K. FREUDENREICH, M. GAILLOUD, Y. 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C., ALOISIO, ALBERTO, ALVIGGI, MARIAGRAZIA, CHIEFARI, GIOVANNI, MEROLA, LEONARDO, NAPOLITANO, MARCO, PATRICELLI, SERGIO, SCIACCA, CRISOSTOMO, Acciarri, M., Adam, A., Adriani, O., Aguilarbenitez, M., Ahlen, S., Alpat, B., Alcaraz, J., Allaby, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., An, Q., Anderhub, H., Andreev, V. P., Angelescu, T., Antreasyan, D., Arefiev, A., Azemoon, T., Aziz, T., P. V. K., Bagnaia, P., Baksay, L., Ball, R. C., Banerjee, S., Banicz, K., Barillere, R., Barone, L., Bartalini, P., Baschirotto, A., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Bencze, G. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Bizzarri, R., Blaising, J. J., Bobbink, G. J., Bock, R., Bohm, A., Borgia, B., Boucham, A., Bourilkov, D., Bourquin, M., Boutigny, D., Braccini, S., Brambilla, E., Branson, J. G., Brigljevic, V., Brock, I. C., Buijs, A., Bujak, A., Burger, J. D., Burger, W. J., Burgos, C., Busenitz, J., Buytenhuijs, A., Cai, X. D., Capell, M., Romeo, G. C., Caria, M., Carlino, G., Cartacci, A. M., Casaus, J., Castellini, G., Castello, R., Cavallari, F., Cavallo, N., Cecchi, C., Cerrada, M., Cesaroni, F., Chamizo, M., Chan, A., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, C., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Cifarelli, L., Cindolo, F., Civinini, C., Clare, I., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colijn, A. P., Colino, N., Commichau, V., Costantini, S., Cotorobai, F., Delacruz, B., Cui, X. T., Cui, X. Y., Dai, T. S., Dalessandro, R., Deasmundis, R., Deboeck, H., Degre, D., Deiters, K., Denes, E., Denes, P., Denotaristefani, F., Dibitonto, D., Diemoz, M., Vandierendonck, D., Dilodovico, F., Dionisi, C., Dittmar, M., Dominguez, A., Doria, A., Dorne, I., Dova, M. T., Drago, E., Duchesneau, D., Duinker, P., Duran, I., Dutta, S., Easo, S., Efremenko, Y., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. C., Ernenwein, J. P., Extermann, P., Fabbretti, R., Fabre, M., Faccini, R., Falciano, S., Favara, A., Fay, J., Felcini, M., Ferguson, T., Fernandez, D., Fernandez, G., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Forconi, G., Fredj, L., Freudenreich, K., Gailloud, M., Galaktionov, Y., Ganguli, S. N., Garciaabia, P., Gau, S. S., Gentile, S., Gerald, J., Gheordanescu, N., Giagu, S., Goldfarb, S., Goldstein, J., Gong, Z. F., Gonzalez, E., Gougas, A., Goujon, D., Gratta, G., Gruenewald, M. W., Gu, C., Guanziroli, M., Gupta, V. K., Gurtu, A., Gustafson, H. R., Gutay, L. J., Hartmann, B., Hasan, A., J. T., He, Hebbeker, T., Herve, A., Hilgers, K., Vanhoek, W. C., Hofer, H., Hoorani, H., Hou, S. R., Hu, G., Ilyas, M. M., Innocente, V., Janssen, H., Jin, B. N., Jones, L. W., Dejong, P., Josamutuberria, I., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Khokhar, S., Kienzlefocacci, M. N., Kim, D., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, A., Kirkby, D., Kirkby, J., Kittel, W., Klimentov, A., Konig, A. C., Koffeman, E., Kornadt, O., Koutsenko, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krenz, W., Kuijten, H., Kunin, A., Deguevara, P. L., Landi, G., Lapoint, C., Lassilaperini, K., Laurikainen, P., Lebeau, M., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, P., Lee, J. S., Lee, K. Y., Leggett, C., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Levtchenko, P., Li, C., Lieb, E., Lin, W. T., Linde, F. L., Lindemann, B., Lista, L., Liu, Y., Liu, Z. A., Lohmann, W., Longo, E., Lu, W., Y. S., Lu, Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., W. G., Ma, Macchiolo, A., Maity, M., Malgeri, L., Malik, R., Malinin, A., Mana, C., Mangla, S., Maolinbay, M., Marchesini, P., Marin, A., Martin, J. P., Marzano, F., G. G. G., Mazumdar, K., Mcnally, D., Mele, S., Merola, Leonardo, Meschini, M., Metzger, W. J., Mi, Y., Mihul, A., A. J. W., Mir, Y., Mirabelli, G., Mnich, J., Moller, M., Monteleoni, B., Moore, R., Morand, R., Morganti, S., Moulai, N. E., Mount, R., Muller, S., Muheim, F., Nagy, E., Nahn, S., Napolitano, Marco, Nessitedaldi, F., Newman, H., Niaz, M. A., Nippe, A., Nowak, H., Organtini, G., Ostonen, R., Pandoulas, D., Paoletti, S., Paolucci, P., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pei, Y. J., Pensotti, S., Perretgallix, D., Petrak, S., Pevsner, A., Piccolo, D., Pieri, M., Pinto, J. C., Piroue, P. A., Pistolesi, E., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Produit, N., Qureshi, K. N., Raghavan, R., Rahalcallot, G., Rancoita, P. G., Rattaggi, M., Raven, G., Razis, P., Read, K., Redaelli, M., Ren, D., Ren, Z., Rescigno, M., Reucroft, S., Ricker, A., Riemann, S., Riemers, B. C., Riles, K., Rind, O., Rizvi, H. A., Ro, S., Robohm, A., Rodin, J., Rodriguez, F. J., Roe, B. P., Rohner, M., Rohner, S., Romero, L., Rosierlees, S., Rosselet, P., Vanrossum, W., Roth, S., Rubio, J. A., Rykaczewski, H., Salicio, J., Salicio, J. M., Sanchez, E., Santocchia, A., Sarakinos, M. E., Sarkar, S., Sartorelli, G., Sassowsky, M., Sauvage, G., Schafer, C., Schegelsky, V., Schmitz, D., Schmitz, P., Schneegans, M., Schoeneich, B., Scholz, N., Schopper, H., Schotanus, D. J., Schulte, R., Schultze, K., Schwenke, J., Schwering, G., Sciacca, Crisostomo, Sehgal, R., Seiler, P. G., Sens, J. C., Servoli, L., Shevchenko, S., Shivarov, N., Shoutko, V., Shukla, J., Shumilov, E., Son, D., Sopczak, A., Soulimov, V., Smith, B., Spickermann, T., Spillantini, P., Steuer, M., Stickland, D. P., Sticozzi, F., Stone, H., Stoyanov, B., Strauch, K., Sudhakar, K., Sultanov, G., Sun, L. Z., Susinno, G. F., Suter, H., Swain, J. D., Tang, X. W., Tauscher, L., Taylor, L., Timellini, R., S. C. C., Ting, S. M., Toker, O., Tonisch, F., Tonutti, M., Tonwar, S. C., Toth, J., Tsaregorodtsev, A., Tsipolitis, G., Tully, C., Tuchscherer, H., Ulbricht, J., Urban, L., Uwer, U., Valente, E., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Volkert, R., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, J. C., Wang, X. L., Wang, Y. F., Wang, Z. M., Weber, A., Weill, R., Willmott, C., Wittgenstein, F., S. X., Wu, Wynhoff, S., Xu, J., Z. Z., Xu, Yang, B. Z., Yang, C. G., Yang, G., Yao, X. Y., C. H., Ye, J. B., Ye, Ye, Q., Yeh, S. C., You, J. M., Yunus, N., Zaccardelli, C., Zalite, A., Zemp, P., Zeng, J. Y., Zeng, M., Zeng, Y., Zhang, Z., Zhang, Z. P., Zhou, B., Zhou, G. J., Zhou, J. F., Zhou, Y., Zhu, G. Y., Zhu, R. Y., Zichichi, A., and B. C. C.
Subjects: LEP, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), L3 EXPERIMENT, TRIGGER
Abstract: The reaction e(+)e(-) --> e(+)e(-)gamma*gamma* --> e(+)e(-)K(S)(0)K(S)(0) is studied with the L3 detector at LEP and the formation of the f(2)'(1525) resonance is observed, For an integrated luminosity of 114 pb(-1), 31+/-6 f(2)' events are found, Their angular distribution is consistent with a pure helicity two, The radiative width times the branching ratio is measured to be Gamma(gamma gamma)(f(2)')xBr(f(2)'--> K (K) over bar)=(0.093+/-0.018+/-0.022) keV. Only three events are found in the f(2)(1270)-a(2)(1320) mass region, consistent with destructive f(2)-a(2) interference in the (KSKS0)-K-0 final state. The mixing angle of the tensor meson nonet is determined to be theta=(29.4(-1.6)(+1.4))(0).
Published: 1995

111. Energy and Particle Flow in 3-Jet and Radiative 2-Jet Events from Hadronic Z-Decays

Author: Acciarri, M, Adam, A, Adriani, O, Aguilarbenitez, M, Ahlen, S, Alcaraz, J, Aloisio, A, Alverson, G, Alviggi, Mg, Ambrosi, G, An, Q, Anderhub, H, Anderson, Al, Andreev, Vp, Angelescu, T, Antonov, L, Antreasyan, D, Alkhazov, G, Arce, P, Arefiev, A, Azemoon, T, Aziz, T, Baba, Pvks, Bagnaia, Paolo, Bakken, Ja, Baksay, L, Ball, Rc, Banerjee, S, Banicz, K, Barillere, R, Barone, Luciano Maria, Baschirotto, A, Basile, M, Battiston, R, Bay, A, Becattini, F, Becker, U, Behner, F, Bencze, Gl, Berdugo, J, Berges, P, Bertucci, B, Betev, Bl, Biasini, M, Biland, A, Bilei, Gm, Bizzarri, R, Blaising, Jj, Bobbink, Gj, Bock, R, Bohm, A, Borgia, B, Boucham, A, Bourilkov, D, Bourquin, M, Boutigny, D, Bouwens, B, Brambilla, E, Branson, Jg, Brigljevic, V, Brock, Ic, Brooks, M, Bujak, A, Burger, Jd, Burger, Wj, Burgos, C, Busenitz, J, Buytenhuijs, A, Bykov, A, Cai, Xd, Capell, M, Romeo, Gc, Caria, M, Carlino, G, Cartacci, Am, Casaus, J, Castello, R, Cavallo, N, Cerrada, M, Cesaroni, F, Chamizo, M, Chang, Yh, Chaturvedi, Uk, Chemarin, M, Chen, A, Chen, C, Chen, G, Chen, Gm, Chen, Hf, Chen, Hs, Chen, M, Chiefari, G, Chien, Cy, Choi, Mt, Chung, S, Cifarelli, L, Cindolo, F, Civinini, C, Clare, I, Clare, R, Coan, Te, Cohn, Ho, Coignet, G, Colino, N, Costantini, S, Cotorobai, F, Delacruz, B, Cui, Xt, Cui, Xy, Dai, Ts, Dalessandro, R, Deasmundis, R, Degre, A, Deiters, K, Denes, E, Denes, P, Denotaristefani, F, Dibitonto, D, Diemoz, M, Dimitrov, Hr, Dionisi, C, Dittmar, M, Djambazov, L, Dorne, I, Dova, Mt, Drago, E, Duchesneau, D, Duhem, F, Duinker, P, Duran, I, Dutta, S, Easo, S, Elmamouni, H, Engler, A, Eppling, Fj, Erne, Fc, Extermann, P, Fabbretti, R, Fabre, M, Falciano, S, Favara, A, Fay, J, Felcini, M, Ferguson, T, Fernandez, D, Fernandez, G, Ferroni, Fernando, Fesefeldt, H, Fiandrini, E, Field, Jh, Filthaut, F, Fisher, Ph, Forconi, G, Fredj, L, Freudenreich, K, Gailloud, M, Galaktionov, Y, Gallo, E, Ganguli, Sn, Garciaabia, P, Gentile, Simonetta, Gerald, J, Gheordanescu, N, Giagu, Stefano, Goldfarb, S, Goldstein, J, Gong, Zf, Gonzalez, E, Gougas, A, Goujon, D, Gratta, G, Gruenewald, Mw, Guanziroli, Cgm, Gupta, Vk, Gurtu, A, Gustafson, Hr, Gutay, Lj, Hasan, A, Hauschildt, D, He, Jt, Hebbeker, T, Hebert, M, Herve, A, Hilgers, K, Hofer, H, Hoorani, H, Hou, Sr, Hu, G, Ille, B, Ilyas, Mm, Innocente, V, Janssen, H, Jin, Bn, Jones, Lw, Dejong, P, Josamutuberria, I, Kasser, A, Khan, Ra, Kamyshkov, Y, Kapinos, P, Kapustinsky, Js, Karyotakis, Y, Kaur, M, Khokhar, S, Kienzlefocacci, Mn, Kim, D, Kim, Jk, Kim, Sc, Kim, Yg, Kinnison, Ww, Kirkby, A, Kirkby, D, Kirkby, J, Kirsch, S, Kittel, W, Klimentov, A, Konig, Ac, Koffeman, E, Kornadt, O, Koutsenko, V, Koulbardis, A, Kraemer, Rw, Kramer, T, Krastev, Vr, Krenz, W, Kuijten, H, Kumar, Ks, Kunin, A, Deguevara, Pl, Landi, G, Lanske, D, Lanzano, S, Laurikainen, P, Lebedev, A, Lebrun, P, Lecomte, P, Lecoq, P, Lecoultre, P, Lee, Dm, Lee, Js, Lee, Ky, Leedom, I, Leggett, C, Legoff, Jm, Leiste, R, Lenti, M, Leonardi, E, Levtchenko, P, Li, C, Lieb, E, Lin, Wt, Linde, Fl, Lindemann, B, Lista, L, Liu, Y, Lohmann, W, Longo, E, Lu, W, Lu, Ys, Lubbers, Jm, Lubelsmeyer, K, Luci, Claudio, Luckey, D, Ludovici, L, Luminari, L, Lustermann, W, Ma, Wg, Macdermott, M, Maity, M, Malgeri, L, Malik, R, Malinin, A, Mana, C, Mangla, S, Maolinbay, M, Marchesini, P, Marin, A, Martin, Jp, Marzano, F, Massaro, Ggg, Mazumdar, K, Mcbride, P, Mcmahon, T, Mcnally, D, Mele, S, Merk, M, Merola, L, Meschini, M, Metzger, Wj, Mi, Y, Mihul, A, Mills, Gb, Mir, Y, Mirabelli, G, Mnich, J, Moller, M, Monaco, V, Monteleoni, B, Morand, R, Morganti, S, Moulai, Ne, Mount, R, Muller, S, Nagy, E, Napolitano, M, Nessitedaldi, F, Newman, H, Niaz, Ma, Nippe, A, Nowak, H, Organtini, Giovanni, Ostonen, R, Pandoulas, D, Paoletti, S, Paolucci, P, Pascale, G, Passaleva, G, Patricelli, S, Paul, T, Pauluzzi, M, Paus, C, Pauss, F, Pei, Yj, Pensotti, S, Perretgallix, D, Pevsner, A, Piccolo, D, Pieri, M, Pinto, Jc, Piroue, Pa, Pistolesi, E, Plasil, F, Plyaskin, V, Pohl, M, Pojidaev, V, Postema, H, Produit, N, Qian, Jm, Qureshi, Kn, Raghavan, R, Rahalcallot, G, Rancoita, Pg, Rattaggi, M, Raven, G, Razis, P, Read, K, Redaelli, M, Ren, D, Ren, Z, Rescigno, M, Reucroft, S, Ricker, A, Riemann, S, Riemers, Bc, Riles, K, Rind, O, Rizvi, Ha, Ro, S, Robohm, A, Rodriguez, Fj, Roe, Bp, Rohner, M, Rohner, S, Romero, L, Rosierlees, S, Rosmalen, R, Rosselet, P, Vanrossum, W, Roth, S, Rubbia, A, Rubio, Ja, Rykaczewski, H, Salicio, J, Salicio, Jm, Sanchez, E, Sanders, Gs, Santocchia, A, Sarakinos, Me, Sarkar, S, Sartorelli, G, Sassowsky, M, Sauvage, G, Schafer, C, Schegelsky, V, Schmitz, D, Schmitz, P, Schneegans, M, Scholz, N, Schopper, H, Schotanus, Dj, Shotkin, S, Schreiber, Hj, Shukla, J, Schulte, R, Schultze, K, Schwenke, J, Schwering, G, Sciacca, C, Scott, I, Sehgal, R, Seiler, Pg, Sens, Jc, Servoli, L, Sheer, I, Shevchenko, S, Shi, Xr, Shumilov, E, Shoutko, V, Son, D, Sopczak, A, Soulimov, V, Spartiotis, C, Spickermann, T, Spillantini, P, Steuer, M, Stickland, Dp, Sticozzi, F, Stone, H, Strauch, K, Sudhakar, K, Sultanov, G, Sun, Lz, Susinno, Gf, Suter, H, Swain, Jd, Syed, Aa, Tang, Xw, Taylor, L, Timellini, R, Ting, Scc, Ting, Sm, Toker, O, Tonutti, M, Tonwar, Sc, Toth, J, Trowitzsch, G, Tsaregorodtsev, A, Tsipolitis, G, Tully, C, Ulbricht, J, Urban, L, Uwer, U, Valente, E, Vandewalle, Rt, Vetlitsky, I, Viertel, G, Vikas, P, Vikas, U, Vivargent, M, Vogel, H, Vogt, H, Vorobiev, I, Vorobyov, Aa, Vuilleumier, L, Wadhwa, M, Wallraff, W, Wang, Jc, Wang, Xl, Wang, Yf, Wang, Zm, Weber, A, Weber, J, Weill, R, Willmott, C, Wittgenstein, F, Wright, D, Wu, Sx, Wynhoff, S, Xu, Zz, Yang, Bz, Yang, Cg, Yang, G, Yao, Xy, Ye, Ch, Ye, Jb, Ye, Q, Yeh, Sc, You, Jm, Yunus, N, Yzerman, M, Zaccardelli, C, Zemp, P, Zeng, M, Zeng, Y, Zhang, Dh, Zhang, Zp, Zhou, B, Zhou, Gj, Zhou, Jf, Zhu, Ry, Zichichi, A, Vanderzwaan, Bcc, Acciarri, M., Adam, A., Adriani, O., Aguilarbenitez, M., Ahlen, S., Alcaraz, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., An, Q., Anderhub, H., Anderson, A. L., Andreev, V. P., Angelescu, T., Antonov, L., Antreasyan, D., Alkhazov, G., Arce, P., Arefiev, A., Azemoon, T., Aziz, T., P. V. K., Bagnaia, P., Bakken, J. A., Baksay, L., Ball, R. C., Banerjee, S., Banicz, K., Barillere, R., Barone, L., Baschirotto, A., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Bencze, G. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Bizzarri, R., Blaising, J. J., Bobbink, G. J., Bock, R., Bohm, A., Borgia, B., Boucham, A., Bourilkov, D., Bourquin, M., Boutigny, D., Bouwens, B., Brambilla, E., Branson, J. G., Brigljevic, V., Brock, I. C., Brooks, M., Bujak, A., Burger, J. D., Burger, W. J., Burgos, C., Busenitz, J., Buytenhuijs, A., Bykov, A., Cai, X. D., Capell, M., Romeo, G. C., Caria, M., Carlino, G., Cartacci, A. M., Casaus, J., Castello, R., Cavallo, N., Cerrada, M., Cesaroni, F., Chamizo, M., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, C., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Chung, S., Cifarelli, L., Cindolo, F., Civinini, C., Clare, I., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colino, N., Costantini, S., Cotorobai, F., Delacruz, B., Cui, X. T., Cui, X. Y., Dai, T. S., Dalessandro, R., Deasmundis, R., Degre, A., Deiters, K., Denes, E., Denes, P., Denotaristefani, F., Dibitonto, D., Diemoz, M., Dimitrov, H. R., Dionisi, C., Dittmar, M., Djambazov, L., Dorne, I., Dova, M. T., Drago, E., Duchesneau, D., Duhem, F., Duinker, P., Duran, I., Dutta, S., Easo, S., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. C., Extermann, P., Fabbretti, R., Fabre, M., Falciano, S., Favara, A., Fay, J., Felcini, M., Ferguson, T., Fernandez, D., Fernandez, G., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Forconi, G., Fredj, L., Freudenreich, K., Gailloud, M., Galaktionov, Y., Gallo, E., Ganguli, S. N., Garciaabia, P., Gentile, S., Gerald, J., Gheordanescu, N., Giagu, S., Goldfarb, S., Goldstein, J., Gong, Z. F., Gonzalez, E., Gougas, A., Goujon, D., Gratta, G., Gruenewald, M. W., C. G. M., Gupta, V. K., Gurtu, A., Gustafson, H. R., Gutay, L. J., Hasan, A., Hauschildt, D., J. T., He, Hebbeker, T., Hebert, M., Herve, A., Hilgers, K., Hofer, H., Hoorani, H., Hou, S. R., Hu, G., Ille, B., Ilyas, M. M., Innocente, V., Janssen, H., Jin, B. N., Jones, L. W., Dejong, P., Josamutuberria, I., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Khokhar, S., Kienzlefocacci, M. N., Kim, D., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, A., Kirkby, D., Kirkby, J., Kirsch, S., Kittel, W., Klimentov, A., Konig, A. C., Koffeman, E., Kornadt, O., Koutsenko, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krastev, V. R., Krenz, W., Kuijten, H., Kumar, K. S., Kunin, A., Deguevara, P. L., Landi, G., Lanske, D., Lanzano, S., Laurikainen, P., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, P., Lee, D. M., Lee, J. S., Lee, K. Y., Leedom, I., Leggett, C., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Levtchenko, P., Li, C., Lieb, E., Lin, W. T., Linde, F. L., Lindemann, B., Lista, L., Liu, Y., Lohmann, W., Longo, E., Lu, W., Y. S., Lu, Lubbers, J. M., Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., W. G., Ma, Macdermott, M., Maity, M., Malgeri, L., Malik, R., Malinin, A., Mana, C., Mangla, S., Maolinbay, M., Marchesini, P., Marin, A., Martin, J. P., Marzano, F., G. G. G., Mazumdar, K., Mcbride, P., Mcmahon, T., Mcnally, D., Mele, S., Merk, M., Merola, Leonardo, Meschini, M., Metzger, W. J., Mi, Y., Mihul, A., Mills, G. B., Mir, Y., Mirabelli, G., Mnich, J., Moller, M., Monaco, V., Monteleoni, B., Morand, R., Morganti, S., Moulai, N. 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Subjects: PHYSICS, E+E ANNIHILATION, LUND MONTE-CARLO, High Energy Physics::Phenomenology, QUARK, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, 3-JET EVENTS, High Energy Physics::Experiment, FRAGMENTATION MODELS, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), QCD, GLUON JETS, PARTON
Abstract: We report on a detailed study of the energy and particle flow in the event plane of three-jet events q(q) over barg$ and radiative two-jet events in hadronic Z decays recorded with the L3 detector. We find a significant decrease in particle and energy density in the angular region between quark and antiquark jets for q(q) over barg$ events as compared with events. Several QCD model predictions are compared with the observed effect.
Published: 1995

112. Measurement of weak charged current structure in semileptonic b-hadron decays at the $Z$ peak

Author: Dimitri Bourilkov, M. MacDermott, Raffaello D'Alessandro, M. A. Niaz, Leonardo Merola, R. Fabbretti, N. E. Moulai, E. Fiandrini, Luca Lista, B. Lindemann, Luca Malgeri, T. Azemoon, P. Extermann, D. Fernandez, Salvatore Mele, Marcella Diemoz, Juven Wang, Yanwen Liu, I. Leedom, B. Z. Yang, H. Hofer, T. Paul, Marcos Cerrada, G. Cara Romeo, B. P. Roe, Dai-Sik Kim, G. Sauvage, Sabine Riemann, G. Forconi, Gerard Fernandez, G. Yang, B. L. Betev, H. Anderhub, Y. Mi, Axel König, Jozsef Toth, A. Ricker, P. Lebrun, Yu. Galaktionov, Subir Sarkar, S. X. Wu, J. Alcaraz, M. Möller, A. M. Cartacci, R. Raghavan, L. Antonov, U. Uwer, Harvey B Newman, Elisabetta Gallo, C. Leggett, P. Marchesini, BT Bouwens, Egidio Longo, H. Tuchscherer, G. Alkhazov, Laurent Vuilleumier, K. Lübelsmeyer, Joel Goldstein, T. Angelescu, F. Ferroni, I. Vorobiev, D. DiBitonto, M. Acciarri, A. Bujak, Oliver Kornadt, Ming Zeng, V. Brigljevic, A. Favara, Z. Z. Xu, M. Guanziroli, W. van Rossum, Guo-Ming Chen, Y. Zeng, V. Pojidaev, Ph. Rosselet, M. Steuer, Cheng Chen, A. Mihul, W. J. Burger, C. Zaccardelli, M. Pohl, M. M. Ilyas, D. Pandoulas, S. P. Ahlen, P. Zemp, B. Hartmann, E. Lieb, J. Casaus, H. A. Rizvi, C. Schäfer, R. Barillère, J. P. Martin, L. J. Gutay, A. Chen, M. Caria, R. de Asmundis, J. Salicio, Tariq Aziz, Marco Meschini, A. Nippe, W. W. Kinnison, S. C. Yeh, A. Kunin, A. Koulbardis, M. Vivargent, D. McNally, S. Reucroft, F.C. Erné, U. Becker, J. Mnich, K. Banicz, D. Perret-Gallix, Ren-Yuan Zhu, Luciano Barone, E. Shumilov, Adrian Biland, S. Roth, S. Shotkin, R. T. Van de Walle, V. Shoutko, Pierluigi Paolucci, M. Gailloud, M. Sassowsky, D. Kirkby, A. Arefiev, I. Duran, Hafeez R Hoorani, B. C. Riemers, V. Koutsenko, C. G. Yang, A. Adam, S. S. Gau, A. Gurtu, Aa Vorobyov, G. Carlino, H. El Mamouni, Els Koffeman, F. J. Eppling, G. J. Zhou, L. W. Jones, E. Valente, P. Schmitz, P. Vikas, R. Weill, Christopher George Tully, M. T. Choi, Francesca Nessi-Tedaldi, P. de Jong, E. Brambilla, K. Freudenreich, F. Plasil, G. Tsipolitis, P. Kapinos, D. Goujon, M. Schneegans, Paolo Bagnaia, S. M. Ting, K. Schultze, Mingshui Chen, J. Gerald, A. L. Anderson, G. Schwering, P. Ladron de Guevara, A. Hasan, K. Riles, Vincenzo Innocente, F. Marzano, G. Coignet, M. Pauluzzi, Andre Sopczak, A. Kasser, Wolfgang Lohmann, H. Vogt, B. Bertucci, W. J. Metzger, G. Viertel, S. Goldfarb, Elemer Nagy, K. N. Qureshi, V. Soulimov, J. D. Burger, C. Maña, I. C. Brock, Crisostomo Sciacca, Marco Pieri, A. Engler, S. C. Kim, K. Sudhakar, Jasper Kirkby, S. Morganti, G. Rahal-Callot, Nicanor Colino, Stefan Kirsch, S. Wynhoff, T. E. Coan, J. G. Branson, M. Capell, A. Gougas, I. Dorne, J. A. Bakken, Samuel C.C. Ting, M. Redaelli, U. K. Chaturvedi, J. C. Sens, W. Krenz, D. Antreasyan, X. Y. Cui, S. Costantini, J. B. Ye, W. Lu, F. J. Rodriguez, H. R. Gustafson, Y. S. Lu, Davide Piccolo, Vincenzo Monaco, Federico Cindolo, E. Pistolesi, S. N. Ganguli, Alexander Malinin, Qi An, G. M. Bilei, J. M. Salicio, G. Passaleva, M. W. Gruenewald, I. Josa-Mutuberria, A. Degré, Konrad Deiters, S. Mangla, J. T. He, H. Fesefeldt, B. Schoeneich, S. Easo, J. H. Field, V. Plyaskin, C. Y. Chien, A. Kirkby, M. Rattaggi, S. Röhner, G. F. Susinno, An.A. Vorobyov, P. Duinker, Alberto Aloisio, S. C. Tonwar, Frank Filthaut, Yu Kamyhkov, H. Suter, S. Patricelli, F. L. Linde, Roberto Battiston, Simonetta Gentile, A. Klimentov, J. C. Pinto, R. Voelkert, O. Adriani, Thomas Ferguson, H. Janssen, A. Lebedev, Dong-Chul Son, T. Kramer, Kenneth Francis Read, Q. Ye, M. T. Dova, L. Z. Sun, D. Hauschildt, Lucas Taylor, J. J. Blaising, M. G. Alviggi, Stefano Giagu, L. Romero, X. L. Wang, L. Fredj, H. O. Cohn, X. W. Tang, B. De La Cruz, I. Sheer, Giovanni Ambrosi, P. A. Piroué, B. Zhou, Wt Lin, R. Bock, Jianming Qian, G. Hu, B. C.C. van der Zwaan, M. Bourquin, P. G. Rancoita, X. T. Cui, G.B. Mills, Gerjan Bobbink, Carlos Willmott, Speranza Falciano, B. N. Jin, K. Strauch, M. Röhner, Peter Denes, I. Vetlitsky, N. Yunus, H. Nowak, R. Timellini, J. Schwenke, A. Robohm, G. Gratta, R. Mount, Nicola Cavallo, B. Borgia, A. Bykov, S. Banerjee, Zp Zhang, J. Ulbricht, Chenjie Gu, D. P. Stickland, Y. Mir, C. H. Ye, Luisa Cifarelli, R. Malik, A. Pevsner, G. Castellini, S. Pensotti, Valery Schegelsky, Antonino Zichichi, Ph Fisher, H. Rykaczewski, Giovanni Organtini, Y. Karyotakis, Maurizio Biasini, I. Clare, Marta Felcini, S. Chung, N. Scholz, Francesco Becattini, P.V.K.S. Baba, Attilio Santocchia, Jean Fay, D. Boutigny, Zhuoxiang Ren, Z. F. Gong, S. R. Hou, M. Wadhwa, D. J. Schotanus, R. Leiste, J. M. You, Nicolas Produit, E. Gonzalez, B. Monteleoni, F. Sticozzi, V. R. Krastev, C. Spartiotis, J. S. Lee, R. Morand, A. A. Syed, Howard A. Stone, M. Rescigno, H. Kuijten, M. Yzerman, C-Q. Li, V. K. Gupta, M. N. Kienzle-Focacci, R. Rosmalen, Marcel Merk, S. Ro, A. Tsaregorodtsev, R. Bizzarri, F. DeNotaristefani, H. F. Chen, K. Y. Lee, A. Buytenhuijs, C. Burgos, G. Chiefari, S. Shevchenko, W. Kittel, Manas Maity, P. 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E., Sarkar, S., Sartorelli, G., Sassowsky, M., Sauvage, G., Schafer, C., Schegelsky, V., Schmitz, D., Schmitz, P., Schneegans, M., Schoeneich, B., Scholz, N., Schopper, H., Schotanus, D. J., Shotkin, S., Shukla, J., Schulte, R., Schultze, K., Schwenke, J., Schwering, G., Sciacca, Crisostomo, Sehgal, R., Seiler, P. G., Sens, J. C., Servoli, L., Sheer, L., Shevchenko, S., Shi, X. R., Shumilov, E., Shoutko, V., Son, D., Sopczak, A., Soulimov, V., Spartiotis, C., Spickermann, T., Spillantini, P., Steuer, M., Stickland, D. P., Sticozzi, F., Stone, H., Strauch, K., Sudhakar, K., Sultanov, G., Sun, L. Z., Susinno, G. F., Suter, H., Swain, J. D., Syed, A. A., Tang, X. W., Taylor, L., Timellini, R., S. C. C., Ting, S. M., Toker, O., Tonutti, M., Tonwar, S. C., Toth, J., Tsaregorodtsev, A., Tsipolitis, G., Tully, C., Tuchscherer, H., Ulbricht, J., Urban, L., Uwer, U., Valente, E., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Voelkert, R., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, J. C., Wang, X. L., Wang, Y. F., Wang, Z. M., Weber, A., Weill, R., Willmott, C., Wittgenstein, F., Wright, D., S. X., Wu, Wynhoff, S., Z. Z., Xu, Yang, B. Z., Yang, C. G., Yang, G., Yao, X. Y., C. H., Ye, J. B., Ye, Ye, Q., Yeh, S. C., You, J. M., Yunus, N., Yzerman, M., Zaccardelli, C., Zemp, P., Zeng, M., Zhang, D. H., Zhang, Z. P., Zhou, B., Zhou, G. J., Zhou, J. F., Zhu, R. Y., Zichichi, A., B. C. C., Flores, Sylvie, 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), Institut de Physique Nucléaire de Lyon (IPNL), 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), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), 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), and L3
Subjects: Nuclear and High Energy Physics, Particle physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Electron–positron annihilation, MESON PRODUCTION, Hadron, Electron, CHARGED-CURRENT INTERACTIONS, 01 natural sciences, 7. Clean energy, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Charged current, L3 EXPERIMENT, Physics, Muon, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Polarization (waves), MESONS, MODEL, High Energy Physics::Experiment, Neutrino, Particle Physics - Experiment, Lepton
Abstract: Contains fulltext : 28371.pdf (Author’s version preprint ) (Open Access) The neutrino energy spectrum in semileptonic b-hadron decays with identified energetic electrons and muons has been measured. The observed relative energy sharing between the neutrino and the cahrged lepton is found to be well described with a W± polarization obtained from a free b-quark decay model with a (Vf-A)×(Vf-A) decay structure. The alternative of a (V+A)×(Vf-A) decay structure is excluded with a significance of more than 6 standard deviations. The possibility that hadronic corrections to the b-hadron decay destroy any W± polarization is disfavored by more than 3 standard deviations.
Published: 1995

113. Search for neutralinos in Z decays

Author: H. A. Rizvi, A. Kunin, Y. J. Pei, R. Timellini, Hafeez R Hoorani, Chenjie Gu, W. J. Metzger, S. Goldfarb, J. T. He, F. L. Linde, A. Pevsner, Konrad Deiters, R. Barillère, C. Leggett, R. Leiste, Christoph Paus, Dimitri Bourilkov, T. Angelescu, E. Lieb, M. Guanziroli, Alberto Aloisio, A. Ricker, S. Pensotti, Valery Schegelsky, Antonino Zichichi, Ph Fisher, H. Rykaczewski, Giovanni Organtini, N. E. Moulai, S. Chung, J. Casaus, Yu. Kamyshkov, P.V.K.S. Baba, Attilio Santocchia, Jean Fay, D. Boutigny, Nicolas Produit, E. Fiandrini, J. M. You, Luca Malgeri, P. Laurikainen, Egidio Longo, H. Tuchscherer, Yu. Galaktionov, S. Röhner, Pierluigi Paolucci, M. Gailloud, J. P. Martin, J. Alcaraz, X. W. Tang, I. Sheer, P. A. Piroué, B. Zhou, C. G. Yang, A. Koulbardis, G. Sauvage, B. C.C. van der Zwaan, B. Monteleoni, F. Sticozzi, F. Wittgenstein, L. Ludovici, E. Drago, J. P. Ernenwein, P. de Jong, Tariq Aziz, V. Shoutko, R. Ostonen, A. Marin, F. Cesaroni, B. C. Riemers, A. Lebedev, Dong-Chul Son, T. Kramer, V. Koutsenko, M. Chamizo, A. Adam, Jasper Kirkby, J. A. Bakken, Cheng Chen, A. Mihul, W. J. Burger, Harvey B Newman, M. Sassowsky, A. J.W. van Mil, H. De Boeck, C. Zaccardelli, J. J. Blaising, Stefano Giagu, B. Alpat, J. S. Lee, Paolo Bagnaia, S. S. Gau, Emilio Leonardi, W. W. Kinnison, S. C. Yeh, M. M. Ilyas, L. Urbán, K. Hilgers, C. Spartiotis, M. Tonutti, R. Bock, Crisostomo Sciacca, Marco Pieri, Alessandra Doria, R. Malik, M. Lebeau, N. Yunus, A. Kasser, Ren-Yuan Zhu, Stefan Kirsch, R. Morand, Mariagrazia Alviggi, G. Schwering, Luciano Barone, G. Gratta, P. G. Rancoita, Raffaello D'Alessandro, M. Vivargent, Igor Vorobiev, S. Easo, F. J. Rodriguez, A. Bykov, L. Baksay, F. Cotorobai, E. Dénes, R. Sehgal, D. Duchesneau, V. Plyaskin, T. E. Coan, J. G. Branson, G. F. Susinno, H. R. Gustafson, I. Vetlitsky, B. N. Jin, Leonardo Merola, P. Levtchenko, Howard A. Stone, M. Hebert, Panos A Razis, F. Duhem, Luisa Cifarelli, C. Burgos, E. Valente, W. van Rossum, Roberto Battiston, H. Nowak, Davide Piccolo, Vincenzo Monaco, J. C. Pinto, R. Voelkert, Adrian Biland, D. McNally, P. Bartalini, T. Azemoon, A. Gurtu, Els Koffeman, S. N. Ganguli, V. Commichau, An.A. Vorobyov, A. Degré, W. Lu, M. T. Dova, L. J. Gutay, U. Becker, B. De La Cruz, G. Hu, Helmut Vogel, B. Borgia, T. Paul, Federico Cindolo, L. Z. Sun, Marcos Cerrada, M. Rattaggi, G. Viertel, W. Wallraff, O. Toker, B. Hartmann, O. Adriani, J. Ulbricht, Lucas Taylor, H. O. Cohn, I. Duran, Y. Mi, J. C. Sens, Z. P. Zhang, S. Mangla, S. Banerjee, A. Hasan, N. Scholz, S. Morganti, A. Arefiev, A. Engler, F. J. Eppling, G. J. Zhou, L. W. Jones, Zhuoxiang Ren, Carlos Willmott, Y. Karyotakis, Zp Zhang, Aa Vorobyov, J. Schwenke, Speranza Falciano, S. Mele, S. M. Ting, G. Cara Romeo, B. P. Roe, J. Berdugo, M. Wadhwa, Kajari Mazumdar, C. Cecchi, X. T. Cui, X. Y. Cui, M. Capell, Subir Sarkar, I. Clare, S. Costantini, S. Khokhar, T.R. McMahon, S. Müller, S. C. Tonwar, H. S. Fesefeldt, E. Pistolesi, R. Weill, E. J. Sanchez, Z. M. Wang, D. J. Schotanus, E. Brambilla, Roger Moore, D. Antreasyan, Georgi Sultanov, W. C. van Hoek, Frank Filthaut, A. Bujak, Oliver Kornadt, E. Shumilov, Qi An, P. Lebrun, M. Pohl, P. Marchesini, Xd Cai, G. M. Bilei, Ming Zeng, V. Brigljevic, B. Schoeneich, P. Kapinos, Thomas Ferguson, BT Bouwens, P. Ladron de Guevara, K. Riles, A. Boucham, C. Dionisi, M. Röhner, Pablo Garcia-Abia, M. Caria, M. Acciarri, Guo-Ming Chen, P. Duinker, Simonetta Gentile, T. S. Dai, R. A. Khan, Andre Sopczak, J.V. Allaby, S. Patricelli, W. T. Lin, F. Marzano, G. Coignet, K. N. Qureshi, F. Plasil, X. Y. Yao, Alain Hervé, Mingshui Chen, Q. Ye, J. Gerald, R. Faccini, A. Klimentov, U. Uwer, W. Krenz, A. Bay, H. Janssen, Kenneth Francis Read, G. A. Yang, A. Gougas, M. Lenti, Stefan Roth, M. Lanfranchi, L. Fredj, J. Shukla, J. Salicio, Samuel C.C. Ting, R. T. Van de Walle, Carlo Civinini, M. Maolinbay, G. Raven, F. Ferroni, A. L. Anderson, V. P. Andreev, Y. Zeng, M. Pauluzzi, M. Aguilar-Benitez, I. Dorne, M. Redaelli, M. Möller, Herwig Schopper, J. M. Le Goff, D. H. Wright, N. Gheordanescu, U. K. Chaturvedi, H. Postema, G. Passaleva, M. W. Gruenewald, I. Josa-Mutuberria, Y. S. Lu, P. G. Seiler, J. A. Rubio, M. Chemarin, J. F. Zhou, H. F. Chen, A. Buytenhuijs, D. Ren, J. H. Field, C. Y. Chien, A. Kirkby, G. M. Chen, B. Stoyanov, S. X. Wu, P. Schmitz, Marcella Diemoz, Peter Denes, D. DiBitonto, U. Vikas, M. MacDermott, Ph. Rosselet, M. Steuer, Felicitas Pauss, K. Freudenreich, Marco Meschini, K. Banicz, D. Perret-Gallix, D. Kirkby, M. A. Niaz, S. Rosier-Lees, G. Chiefari, S. Shevchenko, C. Maña, I. C. Brock, P. Le Coultre, M. Basile, F. Behner, Andrea Baschirotto, Christopher George Tully, P. Extermann, Wolfgang Lohmann, H. Vogt, B. Bertucci, A. A. Syed, Christoph Schäfer, I. Leedom, B. Z. Yang, C. Luci, M. Rescigno, H. Hofer, Nicanor Colino, Y. G. Kim, J. K. Kim, D. Luckey, Gy L. Bencze, S. R. Hou, George Alverson, J. S. Kapustinsky, Reinhard W. Schulte, M. Yzerman, G. Ambrosi, F. C. Erné, B. Lindemann, Roberto Castello, Marcel Merk, O. Rind, P. Vikas, G. Tsipolitis, M. Schneegans, K. Sudhakar, J. B. Ye, G. Forconi, Gerard Fernandez, Jozsef Toth, R. Fabbretti, Elisabetta Gallo, S. Reucroft, S. Shotkin, Luca Lista, D. Fernandez, Juven Wang, Yanwen Liu, H. Anderhub, Sabine Riemann, S. P. Ahlen, P. Zemp, R. de Asmundis, A. M. Cartacci, R. Raghavan, A. C. König, G. Alkhazov, Laurent Vuilleumier, H. El Mamouni, Joel Goldstein, D. Goujon, Vincenzo Innocente, A. Favara, Z. Z. Xu, V. Pojidaev, Dai-Sik Kim, B. L. Betev, D. Pandoulas, T. Spickermann, Michael Dittmar, Bernard Ille, J. D. Swain, Y. F. Wang, A. Böhm, Lamberto Luminari, R. C. Ball, Pierre Lecomte, G. Sartorelli, Werner Lustermann, A. C. Weber, A. Chen, G. Mirabelli, K. Lübelsmeyer, Piero Spillantini, Maurizio Biasini, Marta Felcini, Francesco Becattini, Y. Zhou, E. Gonzalez, D. P. Stickland, Y. H. Chang, S. Lanzano, Y. Mir, C. H. Ye, L. Romero, G. J. Bobbink, S. Wynhoff, A. Nippe, Alexander Malinin, M. Bourquin, K. Strauch, Joachim Mnich, X. L. Wang, A. Robohm, M. T. Choi, Francesca Nessi-Tedaldi, C-Q. Li, V. K. Gupta, J. D. Burger, G. Rahal-Callot, S. Ro, R. Bizzarri, Gianpaolo Carlino, F. DeNotaristefani, Manas Maity, P. Berges, K. Schultze, H. Suter, W. Kittel, E. Nagy, M. Fabre, M. E. Sarakinos, J. M. Salicio, R. Mount, Nicola Cavallo, G. Castellini, Z. F. Gong, D.W. Schmitz, G. Pascale, H. Kuijten, M. N. Kienzle-Focacci, V. Soulimov, G.G.G. Massaro, N. Shivarov, Robert Clare, W. G. Ma, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, M. Napolitano, H. S. Chen, L. Servoli, A. Tsaregorodtsev, K. Y. Lee, J. Busenitz, G. Landi, Simone Paoletti, Suchandra Dutta, Manjit Kaur, 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), Institut de Physique Nucléaire de Lyon (IPNL), 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), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), 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), L3, L3 (IHEF, IoP, FNWI), Acciarri, M., Adam, A., Adriani, O., Aguilarbenitez, M., Ahlen, S., Alpat, B., Alcaraz, J., Allaby, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., An, Q., Anderhub, H., Anderson, A. L., Andreev, V. P., Angelescu, T., Antreasyan, D., Alkhazov, G., Arefiev, A., Azemoon, T., Aziz, T., P. V. K., Bagnaia, P., Bakken, J. A., Baksay, L., Ball, R. C., Banerjee, S., Banicz, K., Barillere, R., Barone, L., Bartalini, P., Baschirotto, A., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Bencze, G. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Bizzarri, R., Blaising, J. J., Bobbink, G. J., Bock, R., Bohm, A., Borgia, B., Boucham, A., Bourilkov, D., Bourquin, M., Boutigny, D., Bouwens, B., Brambilla, E., Branson, J. G., Brigljevic, V., Brock, I. C., Bujak, A., Burger, J. D., Burger, W. J., Burgos, C., Busenitz, J., Buytenhuijs, A., Bykov, A., Cai, X. D., Capell, M., Romeo, G. C., Caria, M., Carlino, G., Cartacci, A. M., Casaus, J., Castellini, G., Castello, R., Cavallo, N., Cecchi, C., Cerrada, M., Cesaroni, F., Chamizo, M., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, C., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Chung, S., Cifarelli, L., Cindolo, F., Civinini, C., Clare, I., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colino, N., Commichau, V., Costantini, S., Cotorobai, F., Delacruz, B., Cui, X. T., Cui, X. Y., Dai, T. S., Dalessandro, R., Deasmundis, R., Deboeck, H., Degre, A., Deiters, K., Denes, E., Denes, P., Denotaristefani, F., Dibitonto, D., Diemoz, M., Dionisi, C., Dittmar, M., Doria, A., Dorne, I., Dova, M. T., Drago, E., Duchesneau, D., Duhem, F., Dunker, P., Duran, I., Dutta, S., Easo, S., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. C., Ernenwein, J. P., Extermann, P., Fabbretti, R., Fabre, M., Faccini, R., Falciano, S., Favara, A., Fay, J., Felcini, M., Ferguson, T., Fernandez, D., Fernandez, G., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Forconi, G., Fredj, L., Freudenreich, K., Gailloud, M., Galaktionov, Y., Gallo, E., Ganguli, S. N., Garciaabia, P., Gau, S. S., Gentile, S., Gerald, J., Gheordanescu, N., Giagu, S., Goldfarb, S., Goldstein, J., Gong, Z. F., Gonzalez, E., Gougas, A., Goujon, D., Gratta, G., Gruenewald, M. W., Guanziroli, M., Gupta, V. K., Gurtu, A., Gustafson, H. R., Gutay, L. J., Hartmann, B., Hasan, A., J. T., He, Hebbeker, T., Hebert, M., Herve, A., Hilgers, K., Vanhoek, W. C., Hofer, H., Hoorani, H., Hou, S. R., Hu, G., Ille, B., Ilyas, M. M., Innocente, V., Janssen, H., Jin, B. N., Jones, L. W., Dejong, P., Josamutuberria, I., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Khokhar, S., Kienzlefocacci, M. N., Kim, D., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, A., Kirkby, D., Kirkby, J., Kirsch, S., Kittel, W., Klimentov, A., Konig, A. C., Koffeman, E., Kornadt, O., Koutsenko, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krenz, W., Kuijten, H., Kunin, A., Deguevara, P. L., Landi, G., Lanfranchi, M., Lanzano, S., Laurikainen, P., Lebeau, M., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, P., Lee, J. S., Lee, K. Y., Leedom, I., Leggett, C., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Levtchenko, P., Li, C., Lieb, E., Lin, W. T., Linde, F. L., Lindemann, B., Lista, L., Liu, Y., Lohmann, W., Longo, E., Lu, W., Y. S., Lu, Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., W. G., Ma, Macdermott, M., Maity, M., Malgeri, L., Malik, R., Malinin, A., Mana, C., Mangla, S., Maolinbay, M., Marchesini, P., Marin, A., Martin, J. P., Marzano, F., G. G. G., Mazumdar, K., Mcmahon, T., Mcnally, D., Mele, S., Merk, M., Merola, Leonardo, Meschini, M., Metzger, W. J., Mi, Y., Mihul, A., A. J. W., Mir, Y., Mirabelli, G., Mnich, J., Moller, M., Monaco, V., Monteleoni, B., Moore, R., Morand, R., Morganti, S., Moulai, N. E., Mount, R., Muller, S., Nagy, E., Napolitano, Marco, Nessitedaldi, F., Newman, H., Niaz, M. A., Nippe, A., Nowak, H., Organtini, G., Ostonen, R., Pandoulas, D., Paoletti, S., Paolucci, P., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pei, Y. J., Pensotti, S., Perretgallix, D., Pevsner, A., Piccolo, D., Pieri, M., Pinto, J. C., Piroue, P. A., Pistolesi, E., Plasil, F., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Produit, N., Qureshi, K. N., Raghavan, R., Rahalcallot, G., Rancoita, P. G., Rattaggi, M., Raven, G., Razis, P., Read, K., Redaelli, M., Ren, D., Ren, Z., Rescigno, M., Reucroft, S., Ricker, A., Riemann, S., Riemers, B. C., Riles, K., Rind, O., Rizvi, H. A., Ro, S., Robohm, A., Rodriguez, F. J., Roe, B. P., Rohner, M., Rohner, S., Romero, L., Rosierlees, S., Rosselet, P., Vanrossum, W., Roth, S., Rubio, J. A., Rykaczewski, H., Salicio, J., Salicio, J. M., Sanchez, E., Santocchia, A., Sarakinos, M. E., Sarkar, S., Sartorelli, G., Sassowsky, M., Sauvage, G., Schafer, C., Schegelsky, V., Schmitz, D., Schmitz, P., Schneegans, M., Schoeneich, B., Scholz, N., Schopper, H., Schotanus, D. J., Schulte, R., Schultze, K., Schwenke, J., Schwering, G., Sciacca, Crisostomo, Sehgal, R., Seiler, P. G., Sens, J. C., Servoli, L., Sheer, I., Shevchenko, S., Shivarov, N., Shotkin, S., Shoutko, V., Shukla, J., Shumilov, E., Son, D., Sopczak, A., Soulimov, V., Spartiotis, C., Spickermann, T., Spillantini, P., Steuer, M., Stickland, D. P., Sticozzi, F., Stone, H., Stoyanov, B., Strauch, K., Sudhakar, K., Sultanov, G., Sun, L. Z., Susinno, G. F., Suter, H., Swain, J. D., Syed, A. A., Tang, X. W., Taylor, L., Timellini, R., S. C. C., Ting, S. M., Toker, O., Tonutti, M., Tonwar, S. C., Toth, J., Tsaregorodtsev, A., Tsipolitis, G., Tully, C., Tuchscherer, H., Ulbricht, J., Urban, L., Uwer, U., Valente, E., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Voelkert, R., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, J. C., Wang, X. L., Wang, Y. F., Wang, Z. M., Weber, A., Weill, R., Willmott, C., Wittgenstein, F., Wright, D., S. X., Wu, Wynhoff, S., Z. Z., Xu, Yang, B. Z., Yang, C. G., Yang, G., Yao, X. Y., C. H., Ye, J. B., Ye, Ye, Q., Yeh, S. C., You, J. M., Yunus, N., Yzerman, M., Zaccardelli, C., Zemp, P., Zeng, M., Zeng, Y., Zhang, Z., Zhang, Z. P., Zhou, B., Zhou, G. J., Zhou, J. F., Zhou, Y., Zhu, R. Y., Zichichi, A., B. C. C., and Flores, Sylvie
Subjects: Nuclear and High Energy Physics, Particle physics, COLLISIONS, Photon, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Electron–positron annihilation, Hadron, 01 natural sciences, Nuclear physics, COLLIDER, neutralinos, GLUINO, 0103 physical sciences, SUPERSYMMETRY, lep, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], LEVEL ENERGY TRIGGER, RADIATIVE-CORRECTIONS, PARTICLES, 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Ciencias Exactas, L3 EXPERIMENT, Physics, Gluino, 010308 nuclear & particles physics, photon, Física, Supersymmetry, Fermion, LEP, Neutralino, FERMILAB TEVATRON, fermion pair, Particle Physics - Experiment, Minimal Supersymmetric Standard Model
Abstract: We have searched for neutralinos produced via the reactions e+e− → χχ′ and e+e−→ χ′χ′, where the next-to lightest neutralino, χ′, decays into the lightest neutralino, χ, and either a photon or a fermion pair. Based on 1.8 × 106 hadronic Z decays collected with the L3 detector at LEP, no signal has been observed. We present upper limits of a few times 10−5 on the branching ratios Z → χχ′ and Z → χ′χ′. In the framework of the Minimial Supersymmetric Standard Model, we exclude a lightest χ with mχ less than 18 GeV, if either tan β > 2 or the gluino mass m≈g > 100 GeV., Facultad de Ciencias Exactas
Published: 1995

114. Evidence for Gluon Interference in Hadronic Z-Decays

Author: G. Forconi, Gerard Fernandez, A. Kasser, A. Lebedev, Dong-Chul Son, T. Kramer, Jozsef Toth, J. J. Blaising, Stefano Giagu, H. A. Rizvi, A. Kunin, E. Valente, Hafeez R Hoorani, T. E. Coan, J. G. Branson, D. McNally, S. X. Wu, S. Reucroft, S. Easo, Kati Lassila-Perini, S. Goldfarb, S. Röhner, Roberto Battiston, Davide Piccolo, F. Wittgenstein, V. Plyaskin, G. Viertel, Vincenzo Monaco, D. DiBitonto, S. N. Ganguli, L. Ludovici, I. Vetlitsky, W. Lu, Federico Cindolo, E. Drago, Ph. Rosselet, R. Ostonen, A. Marin, M. Möller, S. Morganti, B. Borgia, A. Degré, M. Steuer, J. T. He, H. Anderhub, S. Mangla, J. Schwenke, F. L. Linde, L. Urbán, X. Y. Cui, J. Ulbricht, S. Costantini, M. Rattaggi, K. Banicz, D. Perret-Gallix, M. T. Dova, H. O. Cohn, H. F. Chen, A. Buytenhuijs, C. Burgos, Mingshui Chen, J. Gerald, R. Faccini, W. C. van Hoek, Frank Filthaut, S. Pensotti, Valery Schegelsky, Antonino Zichichi, Thomas Ferguson, H. Rykaczewski, Z. A. Liu, X. Y. Yao, C-Q. Li, A. Boucham, C. Dionisi, P. Marchesini, M. Pauluzzi, Pablo Garcia-Abia, Alain Hervé, V. K. Gupta, Giovanni Organtini, L. J. Gutay, Ming Zeng, V. Brigljevic, A. Bay, F. Ferroni, J. Lecoq, D. Ren, A. M. Cartacci, Carlo Civinini, R. Raghavan, X. T. Cui, M. Maolinbay, G. Raven, Samuel C.C. Ting, J. G. Xu, U. Becker, M. Aguilar-Benitez, W. van Rossum, Y. Zeng, M. A. Niaz, Herwig Schopper, H. Postema, Laurent Vuilleumier, M. Röhner, E. Dénes, R. Sehgal, D. Duchesneau, S. Ro, R. Bizzarri, J. Shukla, L. Z. Sun, F. DeNotaristefani, M. Lenti, D. Pandoulas, Stefan Roth, G. Chiefari, I. Clare, S. Shevchenko, Roger Moore, U. Vikas, J. Y. Zeng, P.V.K.S. Baba, Attilio Santocchia, Jean Fay, S. P. Ahlen, P. Zemp, P. Bagnaia, Joel Goldstein, G. Passaleva, M. W. Gruenewald, D. Boutigny, I. Duran, Adrian Biland, A. Macchiolo, F. Behner, Andrea Baschirotto, P. Vikas, P. Extermann, Salvatore Mele, G. Tsipolitis, G. Cara Romeo, B. P. Roe, A. Favara, Igor Vorobiev, R. T. Van de Walle, P. Levtchenko, Manas Maity, B. De La Cruz, P. Berges, Panos A Razis, R. de Asmundis, I. Josa-Mutuberria, J. Rodin, Nicolas Produit, C. Cecchi, Z. Z. Xu, F. J. Eppling, G. J. Zhou, L. W. Jones, G. Hu, J. M. Le Goff, N. Gheordanescu, Steve Nahn, V. Pojidaev, M. Schneegans, Alessandra Doria, R. Malik, Christoph Schäfer, B. Z. Yang, H. Hofer, Y. J. Pei, Subir Sarkar, R. Barillère, Maurizio Biasini, Marta Felcini, T. Spickermann, O. Toker, Georgi Sultanov, T. S. Dai, S. M. Ting, Giovanni Ambrosi, P. G. Seiler, Francesco Becattini, J. A. Rubio, Bryan R. Smith, Dai-Sik Kim, T. Angelescu, A. Bujak, Oliver Kornadt, M. Pohl, J. M. You, E. Lieb, Y. Karyotakis, J. Berdugo, E. J. Sanchez, Carlos Willmott, E. Gonzalez, R. Leiste, Christoph Paus, M. Caria, M. Vivargent, R. Timellini, Speranza Falciano, Elemer Nagy, Helmut Vogel, K. Sudhakar, Michael Dittmar, R. A. Khan, L. Luci, J. Casaus, Yu. Kamyshkov, B. L. Betev, A. Engler, W.J. Wetzger, A. Koulbardis, A. Arefiev, G. J. Bobbink, S. Wynhoff, A. Nippe, Yu. Efremenko, Chenjie Gu, N. Scholz, C. Leggett, M. Capell, M. Guanziroli, Zhuoxiang Ren, S. R. Hou, M. Wadhwa, Marcella Diemoz, J. B. Ye, Alexander Malinin, Pierluigi Paolucci, M. Gailloud, B. Monteleoni, Aa Vorobyov, G. Carlino, R. Fabbretti, C. Lapoint, F. Sticozzi, Kajari Mazumdar, A. Pevsner, J. S. Lee, H. S. Fesefeldt, E. Pistolesi, D. J. Schotanus, E. Brambilla, J. D. Swain, P. Schmitz, H. El Mamouni, S. Khokhar, J. P. Martin, G. Y. Zhu, E. Shumilov, X. L. Wang, V. P. Andreev, V. Koutsenko, M. Chemarin, P. de Jong, Jasper Kirkby, S. Müller, M. Sassowsky, A. J.W. van Mil, Luca Lista, D. Fernandez, Juven Wang, A. Chan, H. Kuijten, Peter Denes, Marco Meschini, D. Kirkby, V. Shoutko, J. C. Sens, B. C. Riemers, A. Adam, Xd Cai, An. Zalite, R. Morand, K. Riles, D. Goujon, S. S. Gau, F. Marzano, G. Coignet, W. Krenz, G. A. Yang, M. Tonutti, P. Bartalini, M.E. Sarakinos, C. G. Yang, Y. F. Wang, Yanwen Liu, G. M. Chen, Sabine Riemann, Howard A. Stone, F. Cesaroni, M. Chamizo, H. De Boeck, M. N. Kienzle-Focacci, Vincenzo Innocente, A. A. Syed, M. Rescigno, N. Yunus, Christopher George Tully, B. Alpat, G. Gratta, Egidio Longo, H. Tuchscherer, F. C. Erné, Peter H. Fisher, Roberto Castello, M. Yzerman, Emilio Leonardi, R. Bock, A. Böhm, Wolfgang Lohmann, H. Vogt, A. Tsaregorodtsev, B. Lindemann, L. Baksay, D. Antreasyan, F. Cotorobai, Dimitri Bourilkov, B. Bertucci, S. C. Kim, Nicanor Colino, Luisa Cifarelli, Marcel Merk, Qi An, M. M. Ilyas, B. Schoeneich, P. Kapinos, P. Duinker, A. C. Weber, N. E. Moulai, K. Y. Lee, Simonetta Gentile, A. Klimentov, E. Fiandrini, Luca Malgeri, G. M. Bilei, H. Janssen, Kenneth Francis Read, J.V. Allaby, J. M. Salicio, Stefan Kirsch, G. Sauvage, S. Patricelli, F. J. Rodriguez, O. Rind, H. R. Gustafson, R. Weill, Harvey B Newman, Q. Ye, R. Mount, K. Hilgers, L. Fredj, Nicola Cavallo, An.A. Vorobyov, Aaron Dominguez, G. Mirabelli, Felicitas Pauss, O. Adriani, Lucas Taylor, G. Castellini, M. G. Alviggi, Zhiqing Zhang, V. Soulimov, J. F. Zhou, S. Rosier-Lees, P. Le Coultre, M. Basile, Z. F. Gong, Yu. Galaktionov, J. Alcaraz, J. K. Kim, D. Luckey, Gy L. Bencze, W. Kittel, J. P. Ernenwein, K. Lübelsmeyer, Piero Spillantini, Reinhard W. Schulte, Cheng Chen, A. Mihul, W. J. Burger, C. Zaccardelli, W. W. Kinnison, S. C. Yeh, M. Fabre, Y. Zhou, Raffaello D'Alessandro, Leonardo Merola, T. Azemoon, D. P. Stickland, T. Paul, Marcos Cerrada, Y. Mi, Axel König, Y. Mir, C. H. Ye, L. Romero, Wt Lin, M. Bourquin, K. Strauch, Joachim Mnich, A. Robohm, M. T. Choi, Francesca Nessi-Tedaldi, J. D. Burger, G. Rahal-Callot, K. Schultze, H. Suter, Lamberto Luminari, R. C. Ball, Pierre Lecomte, G. Sartorelli, Werner Lustermann, K. Freudenreich, S.C. Tonwar, C. Maña, I. C. Brock, Y. G. Kim, Y. H. Chang, George Alverson, J. S. Kapustinsky, G. Landi, Simone Paoletti, Suchandra Dutta, Manjit Kaur, P. Laurikainen, Zheng Wang, J. Busenitz, P. Ladron de Guevara, P. G. Rancoita, D.W. Schmitz, G. Pascale, G.G.G. Massaro, N. Shivarov, Andre Sopczak, B. N. Jin, H. Nowak, Robert Clare, W. G. Ma, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, M. Napolitano, K. N. Qureshi, H. S. Chen, W. Wallraff, A. Gougas, L. Servoli, S. Banerjee, Zp Zhang, Konrad Deiters, Alberto Aloisio, A. Ricker, X. W. Tang, P. A. Piroué, B. Zhou, B. C.C. van der Zwaan, Tariq Aziz, G. Schwering, G. F. Susinno, J. C. Pinto, R. Voelkert, P. Lebrun, Crisostomo Sciacca, Marco Pieri, BT Bouwens, M. Acciarri, Guo-Ming Chen, U. Uwer, A. Chen, J. Salicio, M. Lebeau, Ren-Yuan Zhu, Luciano Barone, A. Gurtu, Els Koffeman, V. Commichau, B. Hartmann, A. Hasan, I. Dorne, M. Redaelli, U. K. Chaturvedi, Y. S. Lu, J. H. Field, C. Y. Chien, A. Kirkby, B. Stoyanov, Flores, Sylvie, Acciarri, M., Adam, A., Adriani, O., Aguilarbenitez, M., Ahlen, S., Alpat, B., Alcaraz, J., Allaby, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., An, Q., Anderhub, H., Andreev, V. P., Angelescu, T., Antreasyan, D., Arefiev, A., Azemoon, T., Aziz, T., P. V. K., Bagnaia, P., Baksay, L., Ball, R. C., Banerjee, S., Banicz, K., Barillere, R., Barone, L., Bartalini, P., Baschirotto, A., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Bencze, G. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Bizzarri, R., Blaising, J. J., Bobbink, G. J., Bock, R., Bohm, A., Borgia, B., Boucham, A., Bourilkov, D., Bourquin, M., Boutigny, D., Bouwens, B., Brambilla, E., Branson, J. G., Brigljevic, V., Brock, I. C., Bujak, A., Burger, J. D., Burger, W. J., Burgos, C., Busenitz, J., Buytenhuijs, A., Cai, X. D., Capell, M., Romeo, G. C., Caria, M., Carlino, G., Cartacci, A. M., Casaus, J., Castellini, G., Castello, R., Cavallo, N., Cecchi, C., Cerrada, M., Cesaroni, F., Chamizo, M., Chan, A., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, C., Chen, G., Chen, G. M., Chen, H. G., Chen, H. S., Chen, M., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Cifarelli, L., Cindolo, F., Civinini, C., Clare, I., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colino, N., Commichau, V., Costantini, S., Cotorobai, F., Delacruz, B., Cui, X. T., Cui, X. Y., Dai, T. S., Dalessandro, R., Deasmundis, R., Deboeck, H., Degre, A., Deiters, K., Denes, E., Denes, P., Denotaristefani, F., Dibitonto, D., Diemoz, M., Dionisi, C., Dittmar, M., Dominguez, A., Doria, A., Dorne, I., Dova, M. T., Drago, E., Duchesneau, D., Duinker, P., Duran, L., Dutta, S., Easo, S., Efremenko, Y., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. C., Ernenwein, J. P., Extermann, P., Fabbretti, R., Fabre, M., Faccini, R., Falciano, S., Favara, A., Fay, J., Felcini, M., Ferguson, R., Fernandez, D., Fernandez, G., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, H. H., Filthaut, F., Fisher, P. H., Forconi, G., Fredj, L., Freudenreich, K., Gailloud, M., Galaktionov, Y., Ganguli, S. N., Garciaabia, P., Gau, S. S., Gentile, S., Gerald, J., Gheordanescu, N., Giagu, S., Goldfarb, S., Goldstein, J., Gong, Z. F., Gonzalez, E., Gougas, A., Goujon, D., Gratta, G., Gruenewald, M. W., Gu, C., Guanziroli, M., Gupta, V. K., Gurtu, A., Gustafson, H. R., Gutay, L. J., Hartmann, B., Hasan, A., J. T., He, Hebbeker, T., Herve, A., Hilgers, K., Vanhoek, W. C., Hofer, H., Hoorani, H., Hou, S. R., Hu, G., Ilyas, M. M., Innocente, V., Janssen, H., Jin, B. N., Jones, L. W., Dejong, P., Josamutuberria, I., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Khokhar, S., Kienzlefocacci, M. N., Kim, D., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, A., Kirkby, D., Kirkby, J., Kirsch, S., Kittel, W., Klimentov, A., Konig, A. C., Koffeman, E., Kornadt, O., Koutsenko, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krenz, W., Kuijten, H., Kunin, A., Deguevara, P. L., Landi, G., Lapoint, C., Lassilaperini, K., Laurikainen, P., Lebeau, M., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, J., Lecoq, P., Lecoultre, P., Lee, J. S., Lee, K. Y., Leggett, C., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Levtchenko, P., Li, C., Lieb, E., Lin, W. T., Linde, F. L., Lindemann, B., Lista, L., Liu, Y., Liu, Z. A., Lohmann, W., Longo, E., Lu, W., Y. S., Lu, Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., W. G., Ma, Macchiolo, A., Maity, M., Malgeri, L., Malik, R., Malinin, A., Mana, C., Mangla, S., Maolinbay, M., Marchesini, P., Marin, A., Martin, J. P., Marzano, F., G. G. G., Mazumdar, K., Mcnally, D., Mele, S., Merk, M., Merola, Leonardo, Meschini, M., Metzger, W. J., Mi, Y., Mihul, A., A. J. W., Mir, Y., Mirabelli, G., Mnich, J., Moller, M., Monaco, V., Monteleoni, B., Moore, R., Morand, R., Morganti, S., Moulai, N. E., Mount, R., Muller, S., Nagy, E., Nahn, S., Napolitano, Marco, Nessitedaldi, F., Newman, H., Niaz, M. A., Nippe, A., Nowak, H., Organtini, G., Ostonen, R., Pandoulas, D., Paoletti, S., Paolucci, P., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pei, Y. J., Pensotti, S., Perretgallix, D., Pevsner, A., Piccolo, D., Pieri, M., Pinto, J. C., Piroue, P. A., Pistolesi, E., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Produit, N., Qureshi, K. N., Raghavan, R., Rahalcallot, G., Rancoita, P. G., Rattaggi, M., Raven, G., Razis, P., Read, K., Redaelli, M., Ren, D., Ren, Z., Rescigno, M., Reucroft, S., Ricker, A., Riemann, S., Riemers, B. C., Riles, K., Rind, O., Rizvi, H. A., Ro, S., Robohm, A., Rodin, J., Rodriguez, F. J., Roe, B. P., Rohner, M., Rohner, S., Romero, L., Rosierlees, S., Rosselet, P., Vanrossum, W., Roth, S., Rubio, J. A., Rykaczewski, H., Salicio, J., Salicio, J. M., Sanchez, E., Santocchia, A., Sarakinos, M. E., Sarkas, S., Sartorelli, G., Sassowsky, M., Sauvage, G., Schafer, C., Schegelsky, V., Schmitz, D., Schmitz, P., Schneegans, M., Schoeneich, B., Scholz, N., Schopper, H., Schotanus, D. J., Schulte, R., Schultze, K., Schwenke, J., Schwering, G., Sciacca, Crisostomo, Sehgal, R., Seiler, P. G., Sens, J. C., Servoli, L., Schevchenko, S., Shivarov, V., Smith, B., Spickermann, T., Spillantini, P., Steuer, M., Stickland, D. P., Sticozzi, F., Stone, H., Stoyanov, B., Strauch, K., Sudhakar, K., Sultanov, G., Sun, L. Z., Susinno, G. F., Suter, H., Swain, J. D., Syed, A. A., Tang, X. W., Taylor, L., Timellini, R., S. C. C., Ting, S. M., Toker, O., Tonutti, M., Tonwar, S. C., Toth, J., Tsaregorodtsev, A., Tsipolitis, G., Tully, C., Tuchscherer, H., Ulbricht, J., Urban, L., Uwer, U., Valente, E., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Voelkert, R., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, J. C., Wang, X. L., Wang, Y. F., Wang, Z. M., Weber, A., Weill, R., Willmott, C., Wittgenstein, F., S. X., Wu, Wynhoff, S., Xu, J., Z. Z., Xu, Yang, B. Z., Yang, C. G., Yang, G., Yao, X. Y., C. H., Ye, J. B., Ye, Ye, Q., Yeh, S. C., You, J. M., Yunus, N., Yzerman, M., Zaccardelli, C., Zalite, A., Zemp, P., Zeng, J. Y., Zeng, M., Zeng, Y., Zhang, Z., Zhang, Z. P., Zhou, B., Zhou, G. J., Zhou, J. F., Zhou, Y., Zhu, G. Y., Zhu, R. Y., Zichichi, A., 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), Institut de Physique Nucléaire de Lyon (IPNL), 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), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), 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), L3, and L3 (IHEF, IoP, FNWI)
Subjects: Z boson, Nuclear and High Energy Physics, Particle physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Electron–positron annihilation, media_common.quotation_subject, Monte Carlo method, Hadron, QCD, correlazioni tra particelle, 01 natural sciences, Asymmetry, gluons, Nuclear physics, MONTE-CARLO, QCD COHERENCE, quantum chromodynamics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Nuclear Experiment, 010306 general physics, Parton shower, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Ciencias Exactas, L3 EXPERIMENT, media_common, ELECTRON-POSITRON ANNIHILATION, Physics, Quantum chromodynamics, QUANTUM CHROMODYNAMICS, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, MULTIPLICITY, Física, large electron positron collider, E+E-ANNIHILATION, Gluon, ENERGY CORRELATIONS, L3 detector, SIMULATION, Large Electron–Positron Collider, JETS, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: We present evidence for soft gluon interference, as required by QCD. This interference is expected to manifest itself in an angular ordering of the gluons radiated within a jet. Using hadronic decays of the Z boson in the L3 detector at LEP, we compare variables sensitive to such an angular ordering, namely the energy-energy correlation asymmetry and the newly introduced particle- particle correlation asymmetry, with the predictions of various parton shower models. Only those models which incorporate the expected interference agree with the data., Facultad de Ciencias Exactas
Published: 1995

115. B-Asterisk Production in Z-Decays at Lep

Author: M. ACCIARRI, A. ADAM, O. ADRIANI, M. AGUILARBENITEZ, S. AHLEN, J. ALCARAZ, G. ALVERSON, G. AMBROSI, Q. AN, H. ANDERHUB, A. L. ANDERSON, V. P. ANDREEV, T. ANGELESCU, L. ANTONOV, D. ANTREASYAN, G. ALKHAZOV, P. ARCE, A. AREFIEV, T. AZEMOON, T. AZIZ, P. V. K., P. BAGNAIA, J. A. BAKKEN, L. BAKSAY, R. C. BALL, S. BANERJEE, K. BANICZ, R. BARILLERE, L. BARONE, A. BASCHIROTTO, M. BASILE, R. BATTISTON, A. BAY, F. BECATTINI, U. BECKER, F. BEHNER, G. L. BENCZE, J. BERDUGO, P. BERGES, B. BERTUCCI, B. L. BETEV, M. BIASINI, A. BILAND, G. M. BILEI, R. BIZZARRI, J. J. BLAISING, G. J. BOBBINK, R. BOCK, A. BOHM, B. BORGIA, A. BOUCHAM, D. BOURILKOV, M. BOURQUIN, D. BOUTIGNY, B. BOUWENS, E. BRAMBILLA, J. G. BRANSON, V. BRIGLJEVIC, I. C. BROCK, M. BROOKS, A. BUJAK, J. D. BURGER, W. J. BURGER, C. BURGOS, J. BUSENITZ, A. BUYTENHUIJS, A. BYKOV, X. D. CAI, M. CAPELL, G. C. ROMEO, M. CARIA, G. CARLINO, A. M. CARTACCI, J. CASAUS, R. CASTELLO, N. CAVALLO, M. CERRADA, F. CESARONI, M. CHAMIZO, Y. H. CHANG, U. K. CHATURVEDI, M. CHEMARIN, A. CHEN, C. CHEN, G. CHEN, G. M. CHEN, H. F. CHEN, H. S. CHEN, M. CHEN, C. Y. CHIEN, M. T. CHOI, S. CHUNG, L. CIFARELLI, F. CINDOLO, C. CIVININI, I. CLARE, R. CLARE, T. E. COAN, H. O. COHN, G. COIGNET, N. COLINO, S. COSTANTINI, F. COTOROBAI, B. DELACRUZ, X. T. CUI, X. Y. CUI, T. S. DAI, R. DALESSANDRO, R. DEASMUNDIS, A. DEGRE, K. DEITERS, E. DENES, P. DENES, F. DENOTARISTEFANI, D. DIBITONTO, M. DIEMOZ, H. R. DIMITROV, C. DIONISI, M. DITTMAR, L. DJAMBAZOV, I. DORNE, M. T. DOVA, E. DRAGO, D. DUCHESNEAU, F. DUHEM, P. DUINKER, I. DURAN, S. DUTTA, S. EASO, H. ELMAMOUNI, A. ENGLER, F. J. EPPLING, F. C. ERNE, P. EXTERMANN, R. FABBRETTI, M. FABRE, S. FALCIANO, A. FAVARA, J. FAY, M. FELCINI, T. FERGUSSON, D. FERNANDEZ, G. FERNANDEZ, F. FERRONI, H. FESEFELDT, E. FIANDRINI, J. H. FIELD, F. FILTHAUT, P. H. FISHER, G. FORCONI, L. FREDJ, K. FREUDENREICH, M. GAILLOUD, Y. GALAKTIONOV, E. GALLO, S. N. GANGULI, P. GARCIAABIA, S. GENTILE, J. GERALD, N. GHEORDANESCU, S. GIAGU, S. GOLDFARB, J. GOLDSTEIN, Z. F. GONG, E. GONZALEZ, A. GOUGAS, D. GOUJON, G. GRATTA, M. W. GRUENEWALD, C. GU, M. GUANZIROLI, V. K. GUPTA, A. GURTU, H. R. GUSTAFSON, L. J. GUTAY, A. HASAN, D. HAUSCHILDT, J. T. HE, T. HEBBEKER, M. HEBERT, A. HERVE, K. HILGERS, H. HOFER, H. HOORANI, S. R. HOU, G. HU, B. ILLE, M. M. ILYAS, V. INNOCENTE, H. JANSSEN, B. N. JIN, L. W. JONES, P. DEJONG, I. JOSAMUTUBERRIA, A. KASSER, R. A. KHAN, Y. KAMYSHKOV, P. KAPINOS, J. S. KAPUSTINSKY, Y. KARYOTAKIS, M. KAUR, S. KHOKHAR, M. N. KIENZLEFOCACCI, D. KIM, J. K. KIM, S. C. KIM, Y. G. KIM, W. W. KINNISON, A. KIRBY, D. KIRKBY, S. KIRSCH, W. KITTEL, A. KLIMENTOV, A. C. KONIG, E. KOFFEMAN, O. KORNADT, V. KOUTSENKO, A. KOULBARDIS, R. W. KRAEMER, T. KRAMER, V. R. KRASTEV, W. KRENZ, H. KUIJTEN, K. S. KUMAR, A. KUNIN, P. L. DEGUEVARA, G. LANDI, D. LANSKE, S. LANZANO, A. LEBEDEV, P. LECOMTE, P. LECOQ, P. LECOULTRE, D. M. LEE, J. S. LEE, K. Y. LEE, I. LEEDOM, C. LEGGETT, J. M. LEGOFF, R. LEISTE, M. LENTI, E. LEONARDI, P. LEVTCHENKO, C. LI, E. LIEB, W. T. LIN, F. L. LINDE, B. LINDEMANN, L. LISTA, Y. LIU, W. LOHMANN, E. LONGO, W. LU, Y. S. LU, J. M. LUBBERS, K. LUBELSMEYER, C. LUCI, D. LUCKEY, L. LUDOVICI, L. LUMINARI, W. LUSTERMANN, W. G. MA, M. MACDERMOTT, M. MAITY, L. MALGERI, R. MALIK, A. MALININ, C. MANA, S. MANGLA, M. MAOLINBAY, P. MARCHESINI, A. MARIN, J. P. MARTIN, F. MARZANO, G. G. G., K. MAZUMDAR, P. MCBRIDE, T. MCMAHON, D. MCNALLY, S. MELE, M. MERK, M. MESCHINI, W. J. METZGER, Y. MI, A. MIHUL, G. B. MILLS, Y. MIR, G. MIRABELLI, J. MNICH, M. MOLLER, V. MONACO, B. MONTELEONI, R. MORAND, S. MORGANTI, N. E. MOULAI, R. MOUNT, S. MULLER, E. NAGY, F. NESSITEDALDI, H. NEWMAN, M. A. NIAZ, A. NIPPE, H. NOWAK, G. ORGANTINI, D. PANDOULAS, S. PAOLETTI, P. PAOLUCCI, G. PASCALE, G. PASSALEVA, T. PAUL, M. PAULUZZI, C. PAUS, F. PAUSS, Y. J. PEI, S. PENSOTTI, D. PERRETGALLIX, A. PEVSNER, D. PICCOLO, M. PIERI, J. C. PINTO, P. A. PIROUE, E. PISTOLESI, F. PLASIL, V. PLYASKIN, M. POHL, V. POJIDAEV, H. POSTEMA, N. PRODUIT, J. M. QIAN, K. N. QURESHI, R. RAGHAVAN, G. RAHALCALLOT, P. G. RANCOITA, M. RATTAGGI, G. RAVEN, P. RAZIS, K. READ, M. REDAELLI, D. REN, Z. REN, M. RESCIGNO, S. REUCROFT, A. RICKER, S. RIEMAN, B. C. RIEMERS, K. RILES, O. RIND, H. A. RIZVI, S. RO, A. ROBOHM, F. J. RODRIGUEZ, B. P. ROE, M. ROHNER, S. ROHNER, L. ROMERO, S. ROSIERLEES, R. ROSMALEN, P. ROSSELET, W. VANROSSUM, S. ROTH, A. RUBBIA, J. A. RUBIO, H. RYKACZEWSKI, J. SALICIO, J. M. SALICIO, E. SANCHEZ, G. S. SANDERS, A. SANTOCCHIA, M. E. SARAKINOS, S. SARKAR, G. SARTORELLI, M. SASSOWSKY, G. SAUVAGE, C. SCHAFER, V. SCHEGELSKY, D. SCHMITZ, P. SCHMITZ, M. SCHNEEGANS, N. SCHOLZ, H. SCHOPPER, D. J. SCHOTANUS, S. SHOTKIN, H. J. SCHREIBER, J. SHUKLA, R. SCHULTE, K. SCHULTZE, J. SCHWENKE, G. SCHWERING, I. SCOTT, R. SEHGAL, P. G. SEILER, J. C. SENS, L. SERVOLI, I. SHEER, S. SHEVCHENKO, X. R. SHI, E. SHUMILOV, V. SHOUTKO, D. SON, A. SOPCZAK, V. SOULIMOV, C. SPARTIOTIS, T. SPICKERMANN, P. SPILLANTINI, M. STEUER, D. P. STICKLAND, F. STICOZZI, H. STONE, K. STRAUCH, K. SUDHAKAR, G. SULTANOV, L. Z. SUN, G. F. SUSINNO, H. SUTER, J. D. SWAIN, A. A. SYED, X. W. TANG, L. TAYLOR, R. TIMELLINI, S. C. C., S. M. TING, O. TOKER, M. TONUTTI, S. C. TONWAR, J. TOTH, G. TROWITZSCH, A. TSAREGORODTSEV, T. TSIPOLITIS, C. TULLY, J. ULBRICHT, L. URBAN, U. UWER, E. VALENTE, R. T. VANDEWALLE, I. VETLITSKY, G. VIERTEL, P. VIKAS, U. VIKAS, M. VIVARGENT, H. VOGEL, H. VOGT, I. VOROBIEV, A. A. VOROBYOV, L. VUILLEUMIER, M. WADHWA, W. WALLRAFF, J. C. WANG, X. L. WANG, Y. F. WANG, Z. M. WANG, A. WEBER, J. WEBER, R. WEILL, C. WILLMOTT, F. WITTGENSTEIN, D. WRIGHT, S. X. WU, S. WYNHOFF, Z. Z. XU, B. Z. YANG, C. G. YANG, G. YANG, X. Y. YAO, C. H. YE, J. B. YE, Q. YE, S. C. YEH, J. M. YOU, N. YUNUS, M. YZERMAN, C. ZACCARDELLI, P. ZEMP, M. ZENG, Y. ZENG, D. H. ZHANG, Z. P. ZHANG, B. ZHOU, G. J. ZHOU, J. F. ZHOU, R. Y. ZHU, A. ZICHICHI, B. C. C., ALOISIO, ALBERTO, ALVIGGI, MARIAGRAZIA, CHIEFARI, GIOVANNI, MEROLA, LEONARDO, NAPOLITANO, MARCO, PATRICELLI, SERGIO, SCIACCA, CRISOSTOMO, Acciarri, M., Adam, A., Adriani, O., Aguilarbenitez, M., Ahlen, S., Alcaraz, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., An, Q., Anderhub, H., Anderson, A. L., Andreev, V. P., Angelescu, T., Antonov, L., Antreasyan, D., Alkhazov, G., Arce, P., Arefiev, A., Azemoon, T., Aziz, T., P. V. K., Bagnaia, P., Bakken, J. A., Baksay, L., Ball, R. C., Banerjee, S., Banicz, K., Barillere, R., Barone, L., Baschirotto, A., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Bencze, G. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Bizzarri, R., Blaising, J. J., Bobbink, G. J., Bock, R., Bohm, A., Borgia, B., Boucham, A., Bourilkov, D., Bourquin, M., Boutigny, D., Bouwens, B., Brambilla, E., Branson, J. G., Brigljevic, V., Brock, I. C., Brooks, M., Bujak, A., Burger, J. D., Burger, W. J., Burgos, C., Busenitz, J., Buytenhuijs, A., Bykov, A., Cai, X. D., Capell, M., Romeo, G. C., Caria, M., Carlino, G., Cartacci, A. M., Casaus, J., Castello, R., Cavallo, N., Cerrada, M., Cesaroni, F., Chamizo, M., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, C., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Chung, S., Cifarelli, L., Cindolo, F., Civinini, C., Clare, I., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colino, N., Costantini, S., Cotorobai, F., Delacruz, B., Cui, X. T., Cui, X. Y., Dai, T. S., Dalessandro, R., Deasmundis, R., Degre, A., Deiters, K., Denes, E., Denes, P., Denotaristefani, F., Dibitonto, D., Diemoz, M., Dimitrov, H. R., Dionisi, C., Dittmar, M., Djambazov, L., Dorne, I., Dova, M. T., Drago, E., Duchesneau, D., Duhem, F., Duinker, P., Duran, I., Dutta, S., Easo, S., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. C., Extermann, P., Fabbretti, R., Fabre, M., Falciano, S., Favara, A., Fay, J., Felcini, M., Fergusson, T., Fernandez, D., Fernandez, G., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Forconi, G., Fredj, L., Freudenreich, K., Gailloud, M., Galaktionov, Y., Gallo, E., Ganguli, S. N., Garciaabia, P., Gentile, S., Gerald, J., Gheordanescu, N., Giagu, S., Goldfarb, S., Goldstein, J., Gong, Z. F., Gonzalez, E., Gougas, A., Goujon, D., Gratta, G., Gruenewald, M. W., Gu, C., Guanziroli, M., Gupta, V. K., Gurtu, A., Gustafson, H. R., Gutay, L. J., Hasan, A., Hauschildt, D., J. T., He, Hebbeker, T., Hebert, M., Herve, A., Hilgers, K., Hofer, H., Hoorani, H., Hou, S. R., Hu, G., Ille, B., Ilyas, M. M., Innocente, V., Janssen, H., Jin, B. N., Jones, L. W., Dejong, P., Josamutuberria, I., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Khokhar, S., Kienzlefocacci, M. N., Kim, D., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirby, A., Kirkby, D., Kirsch, S., Kittel, W., Klimentov, A., Konig, A. C., Koffeman, E., Kornadt, O., Koutsenko, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krastev, V. R., Krenz, W., Kuijten, H., Kumar, K. S., Kunin, A., Deguevara, P. L., Landi, G., Lanske, D., Lanzano, S., Lebedev, A., Lecomte, P., Lecoq, P., Lecoultre, P., Lee, D. M., Lee, J. S., Lee, K. Y., Leedom, I., Leggett, C., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Levtchenko, P., Li, C., Lieb, E., Lin, W. T., Linde, F. L., Lindemann, B., Lista, L., Liu, Y., Lohmann, W., Longo, E., Lu, W., Y. S., Lu, Lubbers, J. M., Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., W. G., Ma, Macdermott, M., Maity, M., Malgeri, L., Malik, R., Malinin, A., Mana, C., Mangla, S., Maolinbay, M., Marchesini, P., Marin, A., Martin, J. P., Marzano, F., G. G. G., Mazumdar, K., Mcbride, P., Mcmahon, T., Mcnally, D., Mele, S., Merk, M., Merola, Leonardo, Meschini, M., Metzger, W. J., Mi, Y., Mihul, A., Mills, G. B., Mir, Y., Mirabelli, G., Mnich, J., Moller, M., Monaco, V., Monteleoni, B., Morand, R., Morganti, S., Moulai, N. E., Mount, R., Muller, S., Nagy, E., Napolitano, Marco, Nessitedaldi, F., Newman, H., Niaz, M. A., Nippe, A., Nowak, H., Organtini, G., Pandoulas, D., Paoletti, S., Paolucci, P., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pei, Y. J., Pensotti, S., Perretgallix, D., Pevsner, A., Piccolo, D., Pieri, M., Pinto, J. C., Piroue, P. A., Pistolesi, E., Plasil, F., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Produit, N., Qian, J. M., Qureshi, K. N., Raghavan, R., Rahalcallot, G., Rancoita, P. G., Rattaggi, M., Raven, G., Razis, P., Read, K., Redaelli, M., Ren, D., Ren, Z., Rescigno, M., Reucroft, S., Ricker, A., Rieman, S., Riemers, B. C., Riles, K., Rind, O., Rizvi, H. A., Ro, S., Robohm, A., Rodriguez, F. J., Roe, B. P., Rohner, M., Rohner, S., Romero, L., Rosierlees, S., Rosmalen, R., Rosselet, P., Vanrossum, W., Roth, S., Rubbia, A., Rubio, J. A., Rykaczewski, H., Salicio, J., Salicio, J. M., Sanchez, E., Sanders, G. S., Santocchia, A., Sarakinos, M. E., Sarkar, S., Sartorelli, G., Sassowsky, M., Sauvage, G., Schafer, C., Schegelsky, V., Schmitz, D., Schmitz, P., Schneegans, M., Scholz, N., Schopper, H., Schotanus, D. J., Shotkin, S., Schreiber, H. J., Shukla, J., Schulte, R., Schultze, K., Schwenke, J., Schwering, G., Sciacca, Crisostomo, Scott, I., Sehgal, R., Seiler, P. G., Sens, J. C., Servoli, L., Sheer, I., Shevchenko, S., Shi, X. R., Shumilov, E., Shoutko, V., Son, D., Sopczak, A., Soulimov, V., Spartiotis, C., Spickermann, T., Spillantini, P., Steuer, M., Stickland, D. P., Sticozzi, F., Stone, H., Strauch, K., Sudhakar, K., Sultanov, G., Sun, L. Z., Susinno, G. F., Suter, H., Swain, J. D., Syed, A. A., Tang, X. W., Taylor, L., Timellini, R., S. C. C., Ting, S. M., Toker, O., Tonutti, M., Tonwar, S. C., Toth, J., Trowitzsch, G., Tsaregorodtsev, A., Tsipolitis, T., Tully, C., Ulbricht, J., Urban, L., Uwer, U., Valente, E., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, J. C., Wang, X. L., Wang, Y. F., Wang, Z. M., Weber, A., Weber, J., Weill, R., Willmott, C., Wittgenstein, F., Wright, D., S. X., Wu, Wynhoff, S., Z. Z., Xu, Yang, B. Z., Yang, C. G., Yang, G., Yao, X. Y., C. H., Ye, J. B., Ye, Ye, Q., Yeh, S. C., You, J. M., Yunus, N., Yzerman, M., Zaccardelli, C., Zemp, P., Zeng, M., Zeng, Y., Zhang, D. H., Zhang, Z. P., Zhou, B., Zhou, G. J., Zhou, J. F., Zhu, R. Y., Zichichi, A., and B. C. C.
Subjects: E+E-PHYSICS, CONSTRUCTION, LUND MONTE-CARLO, HADRON, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, DETECTOR, JET FRAGMENTATION
Abstract: The production of B* mesons in Z decays has been measured at LEP with the L3 detector. A sample of Z --> b ($) over bar b events was obtained by tagging muons in 1.6 million hadronic Z decays collected in 1991, 1992 and 1993. A signal with a peak value of E(y) = 46.3+/-1.9 (stat) MeV in the B rest frame energy spectrum was interpreted to come from the decay B* --> gamma B. The inclusive production ratio of B* mesons relative to B mesons was determined from a fit to the spectrum to be N-B*/(N-B* + N-B) = 0.76+/-0.08+/-0.06, where the first error is statistical and the second is systematic.
Published: 1995

116. Tests Qed at Lep Energies Using E(+)E(-)-]Gamma-Gamma(Gamma) and E(+)E(-)-]L(+)L(-)Gamma-Gamma

Author: ACCIARRI, M, ADAM, A, ADRIANI, O, AGUILARBENITEZ, M, AHLEN, S, ALPAT, B, ALCARAZ, J, ALLABY, J, ALOISIO, A, ALVERSON, G, ALVIGGI, M, AMBROSI, G, AN, Q, ANDERHUB, H, ANDREEV, V, ANGELESCU, T, ANTREASYAN, D, AREFIEV, A, AZEMOON, T, AZIZ, T, BABA, P, BAGNAIA, P, BAKSAY, L, BALL, R, BANERJEE, S, BANICZ, K, BARILLERE, R, BARONE, L, BARTALINI, P, BASCHIROTTO, A, BASILE, M, BATTISTON, R, BAY, A, BECATTINI, F, BECKER, U, BEHNER, F, BENCZE, G, BERDUGO, J, BERGES, P, BERTUCCI, B, BETEV, B, BIASINI, M, BILAND, A, BILEI, G, BIZZARRI, R, BLAISING, J, BOBBINK, G, BOCK, R, BOHM, A, BORGIA, B, BOUCHAM, A, BOURILKOV, D, BUYTENHUIJS, A, CAI, X, CAPELL, M, ROMEO, G, CARIA, M, CARLINO, G, CARTACCI, A, CASAUS, J, CASTELLINI, G, CASTELLO, R, CAVALLO, N, CECCHI, C, CERRADA, M, CESARONI, F, CHAMIZO, M, CHAN, A, CHANG, Y, CHATURVEDI, U, CHEMARIN, M, CHEN, A, CHEN, C, CHEN, G, CHEN, M, CHEN, H, CHIEFARI, G, CHIEN, C, CHOI, M, CIFARELLI, L, CINDOLO, F, CIVININI, C, CLARE, I, CLARE, R, COAN, T, COHN, H, COIGNET, G, COLINO, N, COMMICHAU, V, COSTANTINI, S, COTOROBAI, F, DELACRUZ, B, CUI, X, DAI, T, DALESSANDRO, R, DEASMUNDIS, R, DEBOECK, H, DEGRE, A, DEITERS, K, DENES, E, DENES, P, DENOTARISTEFANI, F, DIBITONTO, D, DIEMOZ, M, DIONISI, C, DITTMAR, M, DOMINGUEZ, A, DORIA, A, DORNE, I, DOVA, M, DRAGO, E, DUCHESNEAU, D, DUINKER, P, DURAN, I, DUTTA, S, EASO, S, EFREMENKO, Y, ELMAMOUNI, H, ENGLER, A, EPPLING, F, ERNE, F, ERNENWEIN, J, EXTERMANN, P, FABBRETTI, R, FABRE, M, FACCINI, R, FALCIANO, S, FAVARA, A, FAY, J, FELCINI, M, FERGUSON, T, FERNANDEZ, D, FERNANDEZ, G, FERRONI, F, FESEFELDT, H, FIANDRINI, E, FIELD, J, FILTHAUT, F, FISHER, P, FORCONI, G, FREDJ, L, FREUDENREICH, K, GAILLOUD, M, GALAKTIONOV, Y, GANGULI, S, GARCIAABIA, P, GAU, S, GENTILE, S, GERALD, J, GHEORDANESCU, N, GIAGU, S, GOLDFARB, S, GOLDSTEIN, J, GONG, Z, GONZALEZ, E, GOUGAS, A, GOUJON, D, GRATTA, G, GRUENEWALD, M, GU, C, GUANZIROLI, M, GUPTA, V, GURTU, A, GUSTAFSON, H, GUTAY, L, HARTMANN, B, HASAN, A, HE, J, HEBBEKER, T, HERVE, A, HILGERS, K, VANHOEK, W, HOFER, H, HOORANI, H, HOU, S, HU, G, ILYAS, M, INNOCENTE, V, JANSSEN, H, JIN, B, JONES, L, DEJONG, P, JOSAMUTUBERRIA, I, KASSER, A, KHAN, R, KAMYSHKOV, Y, KAPINOS, P, KAPUSTINSKY, J, KARYOTAKIS, Y, KAUR, M, KHOKHAR, S, KIENZLEFOCACCI, M, KIM, D, KIM, J, KIM, S, KIM, Y, KINNISON, W, KIRKBY, A, KIRKBY, D, KIRKBY, J, KIRSCH, S, KITTEL, W, KLIMENTOV, A, KONIG, A, KOFFEMAN, E, KORNADT, O, KOUTSENKO, V, KOULBARDIS, A, KRAEMER, R, KRAMER, T, KRENZ, W, KUIJTEN, H, KUNIN, A, DEGUEVARA, P, LANDI, G, LAPOINT, C, LASSILAPERINI, K, LAURIKAINEN, P, LEBEAU, M, LEBEDEV, A, LEBRUN, P, LECOMTE, P, LECOQ, J, LECOQ, P, LECOULTRE, P, LEE, J, LEE, K, LEGGETT, C, LEGOFF, J, LEISTE, R, LENTI, M, LEONARDI, E, LEVTCHENKO, P, LI, C, LIEB, E, LIN, W, LINDE, F, LINDEMANN, B, LISTA, L, LIU, Y, LIU, Z, LOHMANN, W, LONGO, E, LU, W, LU, Y, LUBELSMEYER, K, LUCI, C, LUCKEY, D, LUDOVICI, L, LUMINARI, L, LUSTERMANN, W, MA, W, MACCHIOLO, A, MAITY, M, MALGERI, L, MALIK, R, MALININ, A, MANA, C, MANGLA, S, MAOLINBAY, M, MARCHESINI, P, MARIN, A, MARTIN, J, MARZANO, F, MASSARO, G, MAZUMDAR, K, MCNALLY, D, MELE, S, MERK, M, MEROLA, L, MESCHINI, M, METZGER, W, MI, Y, MIHUL, A, VANMIL, A, MIR, Y, MIRABELLI, G, MNICH, J, MOLLER, M, MONACO, V, MONTELEONI, B, MOORE, R, MORAND, R, MORGANTI, S, MOULAI, N, MOUNT, R, MULLER, S, NAGY, E, NAHN, S, NAPOLITANO, M, NESSITEDALDI, F, NEWMAN, H, NIAZ, M, NIPPE, A, NOWAK, H, ORGANTINI, G, OSTONEN, R, PANDOULAS, D, PAOLETTI, S, PAOLUCCI, P, PASCALE, G, PASSALEVA, G, PATRICELLI, S, PAUL, T, PAULUZZI, M, PAUS, C, PAUSS, F, PEI, Y, PENSOTTI, S, PERRETGALLIX, D, PEVSNER, A, PICCOLO, D, PIERI, M, PINTO, J, PIROUE, P, PISTOLESI, E, PLYASKIN, V, POHL, M, POJIDAEV, V, POSTEMA, H, PRODUIT, N, QURESHI, K, RAGHAVAN, R, RAHALCALLOT, G, RANCOITA, P, RATTAGGI, M, RAVEN, G, RAZIS, P, READ, K, REDAELLI, M, REN, D, RIND, O, RIZVI, H, RO, S, ROBOHM, A, RODIN, J, RODRIGUEZ, F, ROE, B, ROHNER, M, ROHNER, S, ROMERO, L, ROSIERLEES, S, ROSSELET, P, VANROSSUM, W, ROTH, S, RUBIO, J, RYKACZEWSKI, H, SALICIO, J, SANCHEZ, E, SANTOCCHIA, A, SARAKINOS, M, SARKAR, S, SARTORELLI, G, SASSOWSKY, M, SAUVAGE, G, SCHAFER, C, SCHEGELSKY, V, SCHMITZ, D, SCHMITZ, P, SCHNEEGANS, M, SCHOENEICH, B, SCHOLZ, N, SCHOPPER, H, SCHOTANUS, D, SCHULTE, R, SCHULTZE, K, SCHWENKE, J, SCHWERING, G, SCIACCA, C, SEHGAL, R, SEILER, P, SENS, J, SERVOLI, L, SHEVCHENKO, S, SHIVAROV, N, SHOUTKO, V, SHUKLA, J, SHUMILOV, E, SON, D, SOPCZAK, A, SOULIMOV, V, SMITH, B, SPICKERMANN, T, SPILLANTINI, P, STEUER, M, STICKLAND, D, STICOZZI, F, STONE, H, STOYANOV, B, STRAUCH, K, SUDHAKAR, K, SULTANOV, G, SUN, L, SUSINNO, G, SUTER, H, SWAIN, J, SYED, A, TANG, X, TAYLOR, L, TIMELLINI, R, TING, S, TOKER, O, TONUTTI, M, TONWAR, S, TOTH, J, TSAREGORODTSEV, A, TSIPOLITIS, G, TULLY, C, TUCHSCHERER, H, ULBRICHT, J, URBAN, L, UWER, U, VALENTE, E, VANDEWALLE, R, VETLITSKY, I, VIERTEL, G, VIKAS, P, VIKAS, U, VIVARGENT, M, VOELKERT, R, VOGEL, H, VOGT, H, VOROBIEV, I, VOROBYOV, A, VUILLEUMIER, L, WADHWA, M, WALLRAFF, W, WANG, J, WANG, X, WANG, Y, WANG, Z, WEBER, A, WEILL, R, WILLMOTT, C, WITTGENSTEIN, F, WU, S, WYNHOFF, S, XU, J, XU, Z, YANG, B, YANG, C, YANG, G, YAO, X, YE, C, YE, J, YE, Q, YEH, S, YOU, J, YUNUS, N, YZERMAN, M, ZACCARDELLI, C, ZALITE, A, ZEMP, P, ZENG, J, ZENG, M, ZENG, Y, ZHANG, Z, ZHOU, B, ZHOU, G, ZHOU, J, ZHOU, Y, ZHU, G, ZHU, R, ZICHICHI, A, VANDERZWAAN, B, Acciarri, M., Adam, A., Adriani, O., Aguilarbenitez, M., Ahlen, S., Alpat, B., Alcaraz, J., Allaby, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., An, Q., Anderhub, H., Andreev, V. P., Angelescu, T., Antreasyan, D., Arefiev, A., Azemoon, T., Aziz, T., P. V. K., Bagnaia, P., Baksay, L., Ball, R. C., Banerjee, S., Banicz, K., Barillere, R., Barone, L., Bartalini, P., Baschirotto, A., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Bencze, G. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Bizzarri, R., Blaising, J. J., Bobbink, G. J., Bock, R., Bohm, A., Borgia, B., Boucham, A., Bourilkov, D., Buytenhuijs, A., Cai, X. D., Capell, M., Romeo, G. C., Caria, M., Carlino, G., Cartacci, A. M., Casaus, J., Castellini, G., Castello, R., Cavallo, N., Cecchi, C., Cerrada, M., Cesaroni, F., Chamizo, M., Chan, A., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, C., Chen, G., Chen, M., Chen, H. F., Chen, H. S., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Cifarelli, L., Cindolo, F., Civinini, C., Clare, I., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colino, N., Commichau, V., Costantini, S., Cotorobai, F., Delacruz, B., Cui, X. T., Cui, X. Y., Dai, T. S., Dalessandro, R., Deasmundis, R., Deboeck, H., Degre, A., Deiters, K., Denes, E., Denes, P., Denotaristefani, F., Dibitonto, D., Diemoz, M., Dionisi, C., Dittmar, M., Dominguez, A., Doria, A., Dorne, I., Dova, M. T., Drago, E., Duchesneau, D., Duinker, P., Duran, I., Dutta, S., Easo, S., Efremenko, Y., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. C., Ernenwein, J. P., Extermann, P., Fabbretti, R., Fabre, M., Faccini, R., Falciano, S., Favara, A., Fay, J., Felcini, M., Ferguson, T., Fernandez, D., Fernandez, G., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Forconi, G., Fredj, L., Freudenreich, K., Gailloud, M., Galaktionov, Y., Ganguli, S. N., Garciaabia, P., Gau, S. S., Gentile, S., Gerald, J., Gheordanescu, N., Giagu, S., Goldfarb, S., Goldstein, J., Gong, Z. F., Gonzalez, E., Gougas, A., Goujon, D., Gratta, G., Gruenewald, M. W., Gu, C., Guanziroli, M., Gupta, V. K., Gurtu, A., Gustafson, H. R., Gutay, L. J., Hartmann, B., Hasan, A., J. T., He, Hebbeker, T., Herve, A., Hilgers, K., Vanhoek, W. C., Hofer, H., Hoorani, H., Hou, S. R., Hu, G., Ilyas, M. M., Innocente, V., Janssen, H., Jin, B. N., Jones, L. W., Dejong, P., Josamutuberria, I., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Khokhar, S., Kienzlefocacci, M. N., Kim, D., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, A., Kirkby, D., Kirkby, J., Kirsch, S., Kittel, W., Klimentov, A., Konig, A. C., Koffeman, E., Kornadt, O., Koutsenko, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krenz, W., Kuijten, H., Kunin, A., Deguevara, P. L., Landi, G., Lapoint, C., Lassilaperini, K., Laurikainen, P., Lebeau, M., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, J., Lecoq, P., Lecoultre, P., Lee, J. S., Lee, K. Y., Leggett, C., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Levtchenko, P., Li, C., Lieb, E., Lin, W. T., Linde, F. L., Lindemann, B., Lista, L., Liu, Y., Liu, Z. A., Lohmann, W., Longo, E., Lu, W., Y. S., Lu, Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., W. G., Ma, Macchiolo, A., Maity, M., Malgeri, L., Malik, R., Malinin, A., Mana, C., Mangla, S., Maolinbay, M., Marchesini, P., Marin, A., Martin, J. P., Marzano, F., G. G. G., Mazumdar, K., Mcnally, D., Mele, S., Merk, M., Merola, Leonardo, Meschini, M., Metzger, W. J., Mi, Y., Mihul, A., A. J. W., Mir, Y., Mirabelli, G., Mnich, J., Moller, M., Monaco, V., Monteleoni, B., Moore, R., Morand, R., Morganti, S., Moulai, N. E., Mount, R., Muller, S., Nagy, E., Nahn, S., Napolitano, Marco, Nessitedaldi, F., Newman, H., Niaz, M. A., Nippe, A., Nowak, H., Organtini, G., Ostonen, R., Pandoulas, D., Paoletti, S., Paolucci, P., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pei, Y. J., Pensotti, S., Perretgallix, D., Pevsner, A., Piccolo, D., Pieri, M., Pinto, J. C., Piroue, P. A., Pistolesi, E., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Produit, N., Qureshi, K. N., Raghavan, R., Rahalcallot, G., Rancoita, P. G., Rattaggi, M., Raven, G., Razis, P., Read, K., Redaelli, M., Ren, D., Rind, O., Rizvi, H. A., Ro, S., Robohm, A., Rodin, J., Rodriguez, F. J., Roe, B. P., Rohner, M., Rohner, S., Romero, L., Rosierlees, S., Rosselet, P., Vanrossum, W., Roth, S., Rubio, J. A., Rykaczewski, H., Salicio, J., Salicio, J. M., Sanchez, E., Santocchia, A., Sarakinos, M. E., Sarkar, S., Sartorelli, G., Sassowsky, M., Sauvage, G., Schafer, C., Schegelsky, V., Schmitz, D., Schmitz, P., Schneegans, M., Schoeneich, B., Scholz, N., Schopper, H., Schotanus, D. J., Schulte, R., Schultze, K., Schwenke, J., Schwering, G., Sciacca, Crisostomo, Sehgal, R., Seiler, P. G., Sens, J. C., Servoli, L., Shevchenko, S., Shivarov, N., Shoutko, V., Shukla, J., Shumilov, E., Son, D., Sopczak, A., Soulimov, V., Smith, B., Spickermann, T., Spillantini, P., Steuer, M., Stickland, D. P., Sticozzi, F., Stone, H., Stoyanov, B., Strauch, K., Sudhakar, K., Sultanov, G., Sun, L. Z., Susinno, G. F., Suter, H., Swain, J. D., Syed, A. A., Tang, X. W., Taylor, L., Timellini, R., S. C. C., Ting, S. M., Toker, O., Tonutti, M., Tonwar, S. C., Toth, J., Tsaregorodtsev, A., Tsipolitis, G., Tully, C., Tuchscherer, H., Ulbricht, J., Urban, L., Uwer, U., Valente, E., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Voelkert, R., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, J. C., Wang, X. L., Wang, Y. F., Wang, Z. M., Weber, A., Weill, R., Willmott, C., Wittgenstein, F., S. X., Wu, Wynhoff, S., Xu, J., Z. Z., Xu, Yang, B. Z., Yang, C. G., Yang, G., Yao, X. Y., C. H., Ye, J. B., Ye, Ye, Q., Yeh, S. C., You, J. M., Yunus, N., Yzerman, M., Zaccardelli, C., Zalite, A., Zemp, P., Zeng, J. Y., Zeng, M., Zeng, Y., Zhang, Z., Zhang, Z. P., Zhou, B., Zhou, G. J., Zhou, J. F., Zhou, Y., Zhu, G. Y., Zhu, R. Y., Zichichi, A., and B. C. C.
Subjects: SEARCH, BOUNDS, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, GAMMA-GAMMA%22">E+E-->GAMMA-GAMMA, GAMMA, MASS PHOTON PAIRS, DECAY, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), L3 EXPERIMENT
Abstract: Total and differential cross sections for the process e(+)e(-) --> gamma gamma(gamma), and the total cross section for the process e(+)e(-) --> gamma gamma gamma, are measured at energies around 91 GeV using the data collected with the L3 detector from 1991 to 1993. We set lower limits, at 95% CL, on a contact interaction energy scale parameter Lambda > 602 GeV, on the mass of an excited electron m(c)* > 146 GeV and on the QED cut-off parameters Lambda(+) > 149 GeV and Lambda(-) > 143 GeV. Upper limits are also set on the branching fractions of Z decaying into gamma gamma, pi degrees gamma and eta gamma of 5.2 x 10(-5), 5.2 x 10(-5) and 7.6 x 10(-5) respectively. The reactions e(+)e(-) --> rho(+)rho(-)n gamma (rho = e, mu, tau) are studied using the data collected from 1990 to 1994. The data are consistent with the QED expectations.
Published: 1995

117. Search For the Decays B-d(0)-]gamma-gamma and B-s(0)-]gamma-gamma

Author: ACCIARRI, M, ADAM, A, ADRIANI, O, AGUILARBENITEZ, M, AHLEN, S, ALPAT, B, ALCARAZ, J, ALLABY, J, ALOISIO, A, ALVERSON, G, ALVIGGI, M, AMBROSI, G, ANDERHUB, H, ANDREEV, V, ANGELESCU, T, ANTREASYAN, D, AREFIEV, A, AZEMOON, T, AZIZ, T, BAGNAIA, P, BAKSAY, L, BALL, R, BANERJEE, S, BANICZ, K, BARILLERE, R, BARONE, L, BARTALINI, P, BASCHIROTTO, A, BASILE, M, BATTISTON, R, BAY, A, BECATTINI, F, BECKER, U, BEHNER, F, BENCZE, G, BERDUGO, J, BERGES, P, BERTUCCI, B, BETEV, B, BIASINI, M, BILAND, A, BILEI, G, BIZZARRI, R, BLAISING, J, BOBBINK, G, BOCK, R, BOHM, A, BORGIA, B, BOUCHAM, A, BOURILKOV, D, BOURQUIN, M, BOUTIGNY, D, BRAMBILLA, E, BRANSON, J, BRIGLJEVIC, V, BROCK, I, BUIJS, A, BUJAK, A, BURGER, J, BURGER, W, BURGOS, C, BUSENITZ, J, BUYTENHUIJS, A, CAI, X, CAPELL, M, ROMEO, G, CARIA, M, CARLINO, G, CARTACCI, A, CASAUS, J, CASTELLINI, G, CASTELLO, R, CAVALLARI, F, CAVALLO, N, CECCHI, C, CERRADA, M, CESARONI, F, CHAMIZO, M, CHAN, A, CHANG, Y, CHATURVEDI, U, CHEMARIN, M, CHEN, A, CHEN, C, CHEN, G, CHEN, H, CHEN, M, CHIEFARI, G, CHIEN, C, CHOI, M, CIFARELLI, L, CINDOLO, F, CIVININI, C, CLARE, I, CLARE, R, COAN, T, COHN, H, COIGNET, G, COLIJN, A, COLINO, N, COMMICHAU, V, COSTANTINI, S, COTOROBAI, F, DELACRUZ, B, DAI, T, DALESSANDRO, R, DEASMUNDIS, R, DEBOECK, H, DEGRE, A, DEITERS, K, DENES, E, DENES, P, DENOTARISTEFANI, F, DIBITONTO, D, DIEMOZ, M, VANDIERENDONCK, D, DILODOVICO, F, DIONISI, C, DITTMAR, M, DOMINGUEZ, A, DORIA, A, DORNE, I, DOVA, M, DRAGO, E, DUCHESNEAU, D, DUINKER, P, DURAN, I, DUTTA, S, EASO, S, EFREMENKO, Y, ELMAMOUNI, H, ENGLER, A, EPPLING, F, ERNE, F, ERNENWEIN, J, EXTERMANN, P, FABBRETTI, R, FABRE, M, FACCINI, R, FALCIANO, S, FAVARA, A, FAY, J, FELCINI, M, FERGUSON, T, FERNANDEZ, D, FERNANDEZ, G, FERRONI, F, FESEFELDT, H, FIANDRINI, E, FIELD, J, FILTHAUT, F, FISHER, P, FORCONI, G, FREDJ, L, FREUDENREICH, K, GAILLOUD, M, GALAKTIONOV, Y, GANGULI, S, GARCIAABIA, P, GAU, S, GENTILE, S, GERALD, J, GHEORDANESCU, N, GIAGU, S, GOLDFARB, S, GOLDSTEIN, J, GONG, Z, GONZALEZ, E, GOUGAS, A, GOUJON, D, GRATTA, G, GRUENEWALD, M, GUPTA, V, GURTU, A, GUSTAFSON, H, GUTAY, L, HARTMANN, B, HASAN, A, HE, J, HEBBEKER, T, HERVE, A, HILGERS, K, VANHOEK, W, HOFER, H, HOORANI, H, HOU, S, HU, G, ILYAS, M, INNOCENTE, V, JANSSEN, H, JIN, B, JONES, L, DEJONG, P, JOSAMUTUBERRIA, I, KASSER, A, KHAN, R, KAMYSHKOV, Y, KAPINOS, P, KAPUSTINSKY, J, KARYOTAKIS, Y, KAUR, M, KIENZLEFOCACCI, M, KIM, D, KIM, J, KIM, S, KIM, Y, KINNISON, W, KIRKBY, A, KIRKBY, D, KIRKBY, J, KITTEL, W, KLIMENTOV, A, KONIG, A, KOFFEMAN, E, KORNADT, O, KOUTSENKO, V, KOULBARDIS, A, KRAEMER, R, KRAMER, T, KRENZ, W, KUIJTEN, H, KUNIN, A, DEGUEVARA, P, LANDI, G, LAPOINT, C, LASSILAPERINI, K, LAURIKAINEN, P, LEBEAU, M, LEBEDEV, A, LEBRUN, P, LECOMTE, P, LECOQ, P, LECOULTRE, P, LEE, J, LEE, K, LEGGETT, C, LEGOFF, J, LEISTE, R, LENTI, M, LEONARDI, E, LEVTCHENKO, P, LI, C, LIEB, E, LIN, W, LINDE, F, LINDEMANN, B, LISTA, L, LIU, Z, LOHMANN, W, LONGO, E, LU, W, LU, Y, LUBELSMEYER, K, LUCI, C, LUCKEY, D, LUDOVICI, L, LUMINARI, L, LUSTERMANN, W, MA, W, MACCHIOLO, A, MAITY, M, MALGERI, L, MALININ, A, MANA, C, MANGLA, S, MAOLINBAY, M, MARCHESINI, P, MARIN, A, MARTIN, J, MARZANO, F, MASSARO, G, MAZUMDAR, K, MCNALLY, D, MELE, S, MEROLA, L, MESCHINI, M, METZGER, W, MI, Y, MIHUL, A, VANMIL, A, MIRABELLI, G, MNICH, J, MOLLER, M, MONTELEONI, B, MOORE, R, MORAND, R, MORGANTI, S, MOUNT, R, MULLER, S, MUHEIM, F, NAGY, E, NAHN, S, NAPOLITANO, M, NESSITEDALDI, F, NEWMAN, H, NIPPE, A, NOWAK, H, ORGANTINI, G, OSTONEN, R, PANDOULAS, D, PAOLETTI, S, PAOLUCCI, P, PASCALE, G, PASSALEVA, G, PATRICELLI, S, PAUL, T, PAULUZZI, M, PAUS, C, PAUSS, F, PEI, Y, PENSOTTI, S, PERRETGALLIX, D, PETRAK, S, PEVSNER, A, PICCOLO, D, PIERI, M, PINTO, J, PIROUE, P, PISTOLESI, E, PLYASKIN, V, POHL, M, POJIDAEV, V, POSTEMA, H, PRODUIT, N, RAGHAVAN, R, RAHALCALLOT, G, RANCOITA, P, RATTAGGI, M, RAVEN, G, RAZIS, P, READ, K, REDAELLI, M, REN, D, RESCIGNO, M, REUCROFT, S, RICKER, A, RIEMANN, S, RIEMERS, B, RILES, K, RIND, O, RO, S, ROBOHM, A, RODIN, J, RODRIGUEZ, F, ROE, B, ROHNER, M, ROHNER, S, ROMERO, L, ROSIERLEES, S, ROSSELET, P, VANROSSUM, W, ROTH, S, RUBIO, J, RYKACZEWSKI, H, SALICIO, J, SANCHEZ, E, SANTOCCHIA, A, SARAKINOS, M, SARKAR, S, SASSOWSKY, M, SAUVAGE, G, SCHAFER, C, SCHEGELSKY, V, SCHMITZ, D, SCHMITZ, P, SCHNEEGANS, M, SCHOENEICH, B, SCHOLZ, N, SCHOPPER, H, SCHOTANUS, D, SCHULTE, R, SCHULTZE, K, SCHWENKE, J, SCHWERING, G, SCIACCA, C, SEILER, P, SENS, J, SERVOLI, L, SHEVCHENKO, S, SHIVAROV, N, SHOUTKO, V, SHUKLA, J, SHUMILOV, E, SON, D, SOPCZAK, A, SOULIMOV, V, SMITH, B, SPICKERMANN, T, SPILLANTINI, P, STEUER, M, STICKLAND, D, STICOZZI, F, STONE, H, STOYANOV, B, STRAUCH, K, SUDHAKAR, K, SULTANOV, G, SUN, L, SUSINNO, G, SUTER, H, SWAIN, J, TANG, X, TAUSCHER, L, TAYLOR, L, TING, S, TOKER, O, TONISCH, F, TONUTTI, M, TONWAR, S, TOTH, J, TSAREGORODTSEV, A, TSIPOLITIS, G, TULLY, C, TUCHSCHERER, H, ULBRICHT, J, URBAN, L, UWER, U, VALENTE, E, VANDEWALLE, R, VETLITSKY, I, VIERTEL, G, VIVARGENT, M, VOLKERT, R, VOGEL, H, VOGT, H, VOROBIEV, I, VOROBYOV, A, VUILLEUMIER, L, WADHWA, M, WALLRAFF, W, WANG, J, WANG, X, WANG, Y, WANG, Z, WEBER, A, WEILL, R, WILLMOTT, C, WITTGENSTEIN, F, WU, S, WYNHOFF, S, XU, J, XU, Z, YANG, B, YANG, C, YAO, X, YE, J, YEH, S, YOU, J, ZACCARDELLI, C, ZALITE, A, ZEMP, P, ZENG, J, ZENG, Y, ZHANG, Z, ZHOU, B, ZHOU, G, ZHOU, J, ZHOU, Y, ZHU, G, ZHU, R, ZICHICHI, A, VANDERZWAAN, B, Acciarri, M., Adam, A., Adriani, O., Aguilarbenitez, M., Ahlen, S., Alpat, B., Alcaraz, J., Allaby, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., Anderhub, H., Andreev, V. P., Angelescu, T., Antreasyan, D., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Baksay, L., Ball, R. C., Banerjee, S., Banicz, K., Barillere, R., Barone, L., Bartalini, P., Baschirotto, A., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Bencze, G. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Bizzarri, R., Blaising, J. J., Bobbink, G. J., Bock, R., Bohm, A., Borgia, B., Boucham, A., Bourilkov, D., Bourquin, M., Boutigny, D., Brambilla, E., Branson, J. G., Brigljevic, V., Brock, I. C., Buijs, A., Bujak, A., Burger, J. D., Burger, W. J., Burgos, C., Busenitz, J., Buytenhuijs, A., Cai, X. D., Capell, M., Romeo, G. C., Caria, M., Carlino, G., Cartacci, A. M., Casaus, J., Castellini, G., Castello, R., Cavallari, F., Cavallo, N., Cecchi, C., Cerrada, M., Cesaroni, F., Chamizo, M., Chan, A., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, C., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Cifarelli, L., Cindolo, F., Civinini, C., Clare, I., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colijn, A. P., Colino, N., Commichau, V., Costantini, S., Cotorobai, F., Delacruz, B., Dai, T. S., Dalessandro, R., Deasmundis, R., Deboeck, H., Degre, A., Deiters, K., Denes, E., Denes, P., Denotaristefani, F., Dibitonto, D., Diemoz, M., Vandierendonck, D., Dilodovico, F., Dionisi, C., Dittmar, M., Dominguez, A., Doria, A., Dorne, I., Dova, M. T., Drago, E., Duchesneau, D., Duinker, P., Duran, I., Dutta, S., Easo, S., Efremenko, Y., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. C., Ernenwein, J. P., Extermann, P., Fabbretti, R., Fabre, M., Faccini, R., Falciano, S., Favara, A., Fay, J., Felcini, M., Ferguson, T., Fernandez, D., Fernandez, G., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Forconi, G., Fredj, L., Freudenreich, K., Gailloud, M., Galaktionov, Y., Ganguli, S. N., Garciaabia, P., Gau, S. S., Gentile, S., Gerald, J., Gheordanescu, N., Giagu, S., Goldfarb, S., Goldstein, J., Gong, Z. F., Gonzalez, E., Gougas, A., Goujon, D., Gratta, G., Gruenewald, M. W., Gupta, V. K., Gurtu, A., Gustafson, H. R., Gutay, L. J., Hartmann, B., Hasan, A., J. T., He, Hebbeker, T., Herve, A., Hilgers, K., Vanhoek, W. C., Hofer, H., Hoorani, H., Hou, S. R., Hu, G., Ilyas, M. M., Innocente, V., Janssen, H., Jin, B. N., Jones, L. W., Dejong, P., Josamutuberria, I., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Kienzlefocacci, M. N., Kim, D., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, A., Kirkby, D., Kirkby, J., Kittel, W., Klimentov, A., Konig, A. C., Koffeman, E., Kornadt, O., Koutsenko, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krenz, W., Kuijten, H., Kunin, A., Deguevara, P. L., Landi, G., Lapoint, C., Lassilaperini, K., Laurikainen, P., Lebeau, M., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, P., Lee, J. S., Lee, K. Y., Leggett, C., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Levtchenko, P., Li, C., Lieb, E., Lin, W. T., Linde, F. L., Lindemann, B., Lista, L., Liu, Z. A., Lohmann, W., Longo, E., Lu, W., Y. S., Lu, Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., W. G., Ma, Macchiolo, A., Maity, M., Malgeri, L., Malinin, A., Mana, C., Mangla, S., Maolinbay, M., Marchesini, P., Marin, A., Martin, J. P., Marzano, F., G. G. G., Mazumdar, K., Mcnally, D., Mele, S., Merola, Leonardo, Meschini, M., Metzger, W. J., Mi, Y., Mihul, A., A. J. W., Mirabelli, G., Mnich, J., Moller, M., Monteleoni, B., Moore, R., Morand, R., Morganti, S., Mount, R., Muller, S., Muheim, F., Nagy, E., Nahn, S., Napolitano, Marco, Nessitedaldi, F., Newman, H., Nippe, A., Nowak, H., Organtini, G., Ostonen, R., Pandoulas, D., Paoletti, S., Paolucci, P., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pei, Y. J., Pensotti, S., Perretgallix, D., Petrak, S., Pevsner, A., Piccolo, D., Pieri, M., Pinto, J. C., Piroue, P. A., Pistolesi, E., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Produit, N., Raghavan, R., Rahalcallot, G., Rancoita, P. G., Rattaggi, M., Raven, G., Razis, P., Read, K., Redaelli, M., Ren, D., Rescigno, M., Reucroft, S., Ricker, A., Riemann, S., Riemers, B. C., Riles, K., Rind, O., Ro, S., Robohm, A., Rodin, J., Rodriguez, F. J., Roe, B. P., Rohner, M., Rohner, S., Romero, L., Rosierlees, S., Rosselet, P., Vanrossum, W., Roth, S., Rubio, J. A., Rykaczewski, H., Salicio, J., Salicio, J. M., Sanchez, E., Santocchia, A., Sarakinos, M. E., Sarkar, S., Sassowsky, M., Sauvage, G., Schafer, C., Schegelsky, V., Schmitz, D., Schmitz, P., Schneegans, M., Schoeneich, B., Scholz, N., Schopper, H., Schotanus, D. J., Schulte, R., Schultze, K., Schwenke, J., Schwering, G., Sciacca, Crisostomo, Seiler, P. G., Sens, J. C., Servoli, L., Shevchenko, S., Shivarov, N., Shoutko, V., Shukla, J., Shumilov, E., Son, D., Sopczak, A., Soulimov, V., Smith, B., Spickermann, T., Spillantini, P., Steuer, M., Stickland, D. P., Sticozzi, F., Stone, H., Stoyanov, B., Strauch, K., Sudhakar, K., Sultanov, G., Sun, L. Z., Susinno, G. F., Suter, H., Swain, J. D., Tang, X. W., Tauscher, L., Taylor, L., S. C. C., Ting, S. M., Toker, O., Tonisch, F., Tonutti, M., Tonwar, S. C., Toth, J., Tsaregorodtsev, A., Tsipolitis, G., Tully, C., Tuchscherer, H., Ulbricht, J., Urban, L., Uwer, U., Valente, E., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vivargent, M., Volkert, R., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, J. C., Wang, X. L., Wang, Y. F., Wang, Z. M., Weber, A., Weill, R., Willmott, C., Wittgenstein, F., S. X., Wu, Wynhoff, S., Xu, J., Z. Z., Xu, Yang, B. Z., Yang, C. G., Yao, X. Y., J. B., Ye, Yeh, S. C., You, J. M., Zaccardelli, C., Zalite, A., Zemp, P., Zeng, J. Y., Zeng, Y., Zhang, Z., Zhang, Z. P., Zhou, B., Zhou, G. J., Zhou, J. F., Zhou, Y., Zhu, G. Y., Zhu, R. Y., Zichichi, A., and B. C. C.
Subjects: TOP-QUARK, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Particle Physics - Experiment, L3 EXPERIMENT
Abstract: A search for the decays B-d,s(0) --> gamma gamma in 2.95 million hadronic Z decays has been performed using the L3 detector at LEP. No candidates are found in the signal region and upper limits have been set on the branching ratios: Br(B-d(0) --> gamma gamma) < 3.9 x 10(-5) and Br(B-s(0) --> gamma gamma) < 14.8 x 10(-5) at 90% CL. These are the first limits set on these exclusive rare decays.
Published: 1995

118. Search for the forbidden decaysη→3γandη→π0γand the rare decayη→π0π0γγ

Author: N. Phaisangittisakul, K. Craig, A. Starostin, S. McDonald, D. Grosnick, I. Supek, A. F. Ramirez, J. R. Comfort, J. W. Price, M. E. Sadler, V. Bekrenv, N. Knecht, D. Isenhower, T. D. S. Stanislaus, M. Clajus, D. M. Manley, C. E. Allgower, R. Manweiler, N. G. Kozlenko, D. Peaslee, B. M. K. Nefkens, A. Koulbardis, H. M. Spinka, Z. Papandreou, W. J. Briscoe, D. D. Koetke, H. M. Staudenmaier, A. Shafi, S. P. Kruglov, I. V. Lopatin, A. Marušić, J. Olmsted, S. N. Prakhov, W. B. Tippens, and G. J. Lolos
Subjects: Physics, Nuclear and High Energy Physics, Angular momentum, Crystallography, Meson, Branching fraction, High Energy Physics::Experiment, Neutron, Nuclear Experiment, Crystal Ball
Abstract: A new upper limit is presented for the branching ratio (BR) of {eta}{yields}3{gamma}. This decay is not allowed by charge-conjugation invariance. We have determined that BR({eta}{yields}3{gamma})
Published: 2005

119. Measurement of the branching ratio forη→π0γγdecay

Author: S. McDonald, N. Phaisangittisakul, G. M. Huber, K. Craig, J. Olmsted, C. E. Allgower, J. R. Comfort, S. N. Prakhov, D. D. Koetke, M. Clajus, H. M. Staudenmaier, A. Starostin, J. W. Price, R. Manweiler, V. Bekrenev, A. Shafi, D. Peaslee, Z. Papandreou, S. P. Kruglov, I. V. Lopatin, H. M. Spinka, D. M. Manley, N. Knecht, M. E. Sadler, B. M. K. Nefkens, T. D. S. Stanislaus, A. Marušić, A. F. Ramirez, A. Koulbardis, W. B. Tippens, G. J. Lolos, W. J. Briscoe, D. Grosnick, N. G. Kozlenko, D. Isenhower, and I. Supek
Subjects: Physics, Nuclear and High Energy Physics, Crystallography, Particle decay, Chiral perturbation theory, Meson, Branching fraction, High Energy Physics::Experiment, Nuclear Experiment, Crystal Ball
Abstract: The branching ratio (BR) for the rare decay $\ensuremath{\eta}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}\ensuremath{\gamma}\ensuremath{\gamma}$ was measured with the Crystal Ball multiphoton spectrometer. The result, BR$(\ensuremath{\eta}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}\ensuremath{\gamma}\ensuremath{\gamma})=(3.5\ifmmode\pm\else\textpm\fi{}0.{7}_{\mathrm{stat}}\ifmmode\pm\else\textpm\fi{}0.{6}_{\mathrm{syst}})\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}$, is in agreement with calculations of chiral perturbation theory to third order. We have used a sample of 28 million \ensuremath{\eta} mesons produced at the BNL Alternating Gradient Synchrotron using the ${\ensuremath{\pi}}^{\ensuremath{-}}p\ensuremath{\rightarrow}\ensuremath{\eta}n$ reaction close to threshold. We detail the intricate extraction of the signal, which has about 1.6 thousand $\ensuremath{\eta}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}\ensuremath{\gamma}\ensuremath{\gamma}$ events, from the overwhelming background of $\ensuremath{\eta}\ensuremath{\rightarrow}3{\ensuremath{\pi}}^{0}$ decays and from the ${\ensuremath{\pi}}^{\ensuremath{-}}p\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}n$ reaction.
Published: 2005

120. Measurement ofπ−p→ηnfrom threshold topπ−=747MeV/c

Author: S. Prakhov, B. M. K. Nefkens, C. E. Allgower, R. A. Arndt, V. Bekrenev, W. J. Briscoe, M. Clajus, J. R. Comfort, K. Craig, D. Grosnick, D. Isenhower, N. Knecht, D. Koetke, A. Koulbardis, N. Kozlenko, S. Kruglov, G. Lolos, I. Lopatin, D. M. Manley, R. Manweiler, A. Marušić, S. McDonald, J. Olmsted, Z. Papandreou, D. Peaslee, N. Phaisangittisakul, J. W. Price, A. F. Ramirez, M. Sadler, A. Shafi, H. Spinka, T. D. S. Stanislaus, A. Starostin, H. M. Staudenmaier, I. I. Strakovsky, I. Supek, W. B. Tippens, and R. L. Workman
Subjects: Nuclear reaction, Physics, Nuclear and High Energy Physics, Crystallography, Pion, Meson, Hadron, Production (computer science), Nuclear Experiment, Lambda baryon, Omega, Crystal Ball
Abstract: The differential cross section for {eta} production in reaction {pi}{sup -}p{yields}{eta}n has been measured over the full angular range at seven incident {pi}{sup -} beam momenta from threshold to p{sub {pi}}{sub {sup -}}=747 MeV/c using the Crystal Ball multiphoton spectrometer. The angular distributions are S wave dominated. At 10 MeV/c above threshold, a small D-wave contribution appears that interferes with the main S wave. The total {eta} production cross section {sigma}{sup tot} is obtained by integration of d{sigma}/d{omega}. Starting at threshold, {sigma}{sup tot} rises rapidly, as expected for S-wave-dominated production. The features of the {pi}{sup -}p{yields}{eta}n cross section are strikingly similar to those of the SU(3) flavor-related process K{sup -}p{yields}{eta}{lambda}. Comparison of the {pi}{sup -}p{yields}{eta}n reaction is made with {eta} photoproduction.
Published: 2005

121. Measurement of pi^-p-->pi^0 n in the vicinity of the eta threshold

Author: Starostin, A., Prakhov, S., Nefkens, B.M.K., Allgower, C., Bekrenev, C., Briscoe, W.J., Clajus, M., Comfort, J.R., Craig, K., Grosnick, D., Huber, G.M., Isenhower, D., Knecht, N., Koetke, D.D., Koulbardis, A., Kozlenko, N., Kruglov, S., Lolos, G., Lopatin, I., Manley, D.M., Manweiler, R., Marušić, Aljoša, McDonald, S., Olmsted, J., Papandreou, Z., Peaslee, D., Peterson, J., Phaisangittisakul, N., Price, J.W., Ramirez, Sadler, M., Shafi, A., Spinka, H., Stanislaus, S., Staudenmaier, H.M., Supek, Ivan, and Tippens, W.B.
Subjects: pion, differential cross sections, eta channel, Nuclear Experiment
Abstract: We report a new measurement of the differential cross section for pi^-p-->pi^0 n from p_pi=649 to 752 MeV/c, which is around the opening of the eta channel (685 MeV/c). Our data support the main features of the pi^-p charge-exchange differential cross sections generated by the SAID piN partial-wave analysis. The opening of the eta channel has a clear effect on the shape of the excitation function for dsigma (pi^-p-->pi^0 n), which is most noticeable in the backward direction.
Published: 2005

122. Measurement of pi-p-->eta n from threshold to p(pi-) = 747 MeV/c

Author: Prakhov, S., Nefkens, B.M.K., Allgower, C.E., Bekrenev, V., Briscoe, W.J., Clajus, M., Comfort, J.R., Craig, K., Grosnick, D., Huber, G.M., Isenhower, D., Knecht, N., Koetke, D., Koulbardis, A., Kozlenko, N., Kruglov, S., Lolos, G., Lopatin, I., Manley, D.M., Manweiler, R., Marusic, A., McDonald, S., Olmsted, J., Papandreou, Z., Peaslee, D., Phaisangittisakul, N., Price, J.W., Ramirez, A.F., Sadler, M., Shafi, A., Spinka, H., Stanislaus, T.D.S., Starostin, A., Staudenmaier, H.M., Supek, Ivan, Tippens, W.B., and Workman, R.L.
Subjects: High Energy Physics::Experiment, Nuclear Experiment, eta production, cross section
Abstract: The differential cross section for eta production in reaction pi-p-->eta n has been measured over the full angular range at seven incident - beam momenta from threshold to p_pi-=747 MeV/c using the Crystal Ball multiphoton spectrometer. The angular distributions are S wave dominated. At 10 MeV/c above threshold, a small D-wave contribution appears that interferes with the main S wave. The total eta production cross section sigma^tot is obtained by integration of d sigma/d omega. Starting at threshold, sigma^tot rises rapidly, as expected for S-wave-dominated production. The features of the pi-p-->eta n cross section are strikingly similar to those of the SU(3) flavor-related process K-p-->eta Lambda. Comparison of the pi-p-->eta n reaction is made with eta photoproduction.
Published: 2005

123. Measurement of the branching ratio for eta pi^0 gamma gamma decay

Author: Prakhov, S., Nefkens, B.M.K., Allgower, C.E., Bekrenev, V., Briscoe, W.J., Clajus, M., Comfort, J.R., Craig, K., Grosnick, D., Huber, G.M., Isenhower, D., Knecht, N., Koetke, D., Koulbardis, A., Kozlenko, N., Kruglov, S., Lolos, G., Lopatin, I., Manley, D.M., Manweiler, R., Marusic, A., McDonald, S., Olmsted, J., Papandreou, Z., Peaslee, D., Phaisangittisakul, N., Price, J.W., Ramirez, A.F., Sadler, M., Shafi, A., Spinka, H., Stanislaus, T.D.S., Starostin, A., Staudenmaier, H.M., Supek, Ivan, and Tippens, W.B.
Subjects: Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Experiment, Nuclear Experiment, branching ratio, rare decay, eta
Abstract: The branching ratio (BR) for the rare decay eta-->pi^0 gamma gamma was measured with the Crystal Ball multiphoton spectrometer. The result, BR(eta-->pi^0 gamma gamma)=(3.5&plusmn ; ; 0.7_stat&plusmn ; ; 0.6_syst)×10-4, is in agreement with calculations of chiral perturbation theory to third order. We have used a sample of 28 million eta mesons produced at the BNL Alternating Gradient Synchrotron using the pi-p-->eta n reaction close to threshold. We detail the intricate extraction of the signal, which has about 1.6 thousand eta-->pi^0 gamma gamma events, from the overwhelming background of eta -->3pi^0 decays and from the pi-p-->pi^0 pi^0 n reaction.
Published: 2005

124. Search for the forbidden decays eta -->3gamma and eta-->pi^0gamma and the rare decay eta -->pi^0pi^0 gamma gamma

Author: Nefkens, B.M.K., Prakhov, S., Allgower, C.E., Bekrenev, V., Briscoe, W.J., Clajus, M., Comfort, J.R., Craig, K., Grosnick, D., G.M., Isenhower, D., Knecht, N., Koetke, D., Koulbardis, A., Kozlenko, N., Kruglov, S., Lolos, G., Lopatin, I., Manley, D.M., Manweiler, R., Marusic, A., McDonald, S., Olmsted, J., Papandreou, Z., Peaslee, D., Phaisangittisakul, N., Price, J.W., Ramirez, A.F., Sadler, M., Shafi, A., Spinka, H., Stanislaus, T.D.S., Starostin, A., Staudenmaier, H.M., Supek, Ivan, and Tippens, W.B.
Subjects: decays, pseudoscalar meson, High Energy Physics::Experiment, Nuclear Experiment
Abstract: A new upper limit is presented for the branching ratio (BR) of eta -->3 gamma. This decay is not allowed by charge-conjugation invariance. We have determined that BR(eta -->3gamma)Pi^0 gamma-->3gamma)pi^0pi^0 gamma gamma)eta n reaction close to threshold.
Published: 2005

125. A measurement of polarization at LEP

Author: M. ACCIARRI, A. ADAMS, O. ADRIANI, M. AGUILARBENITEZ, S. AHLEN, J. ALCARAZ, G. ALVERSON, G. AMBROSI, Q. AN, H. ANDERHUB, A. L. ANDERSON, V. P. ANDREEV, T. ANGELESCU, L. ANTONOV, D. ANTREASYAN, G. ALKHAZOV, P. ARCE, A. AREFIEV, T. AZEMOON, T. AZIZ, P. V. K., P. BAGNAIA, J. A. BAKKEN, L. BAKSAY, R. C. BALL, S. BANERJEE, K. BANICZ, R. BARILLERE, L. BARONE, A. BASCHIROTTO, M. BASILE, R. BATTISTON, A. BAY, F. BECATTINI, U. BECKER, F. BEHNER, G. L. BENCZE, J. BERDUGO, P. BERGES, B. BERTUCCI, B. L. BETEV, M. BIASINI, A. BILAND, G. M. BILEI, R. BIZZARRI, J. J. BLAISING, G. J. BOBBINK, R. BOCK, A. BOHM, B. BORGIA, A. BOUCHAM, D. BOURILKOV, M. BOURQUIN, D. BOUTIGNY, B. BOUWENS, E. BRAMBILLA, J. G. BRANSON, V. BRIGLJEVIC, I. C. BROCK, M. BROOKS, A. BUJAK, J. D. BURGER, W. J. BURGER, C. BURGOS, J. BUSENITZ, A. BUYTENHUIJS, A. BYKOV, X. D. CAI, M. CAPELL, G. C. ROMEO, M. CARIA, G. CARLINO, A. M. CARTACCI, J. CASAUS, R. CASTELLO, N. CAVALLO, M. CERRADA, F. CESARONI, M. CHAMIZO, Y. H. CHANG, U. K. CHATURVEDI, M. CHEMARIN, A. CHEN, C. CHEN, G. CHEN, G. M. CHEN, H. F. CHEN, H. S. CHEN, M. CHEN, C. Y. CHIEN, M. T. CHOI, S. CHUNG, L. CIFARELLI, F. CINDOLO, C. CIVININI, I. CLARE, R. CLARE, T. E. COAN, H. O. COHN, G. COIGNET, N. COLINO, S. COSTANTINI, F. COTOROBAI, B. DELACRUZ, X. T. CUI, X. Y. CUI, T. S. DAI, R. DALESSANDRO, R. DEASMUNDIS, A. DEGRE, K. DEITERS, E. DENES, P. DENES, F. DENOTARISTEFANI, D. DIBITONTO, M. DIEMOZ, H. R. DIMITROV, C. DIONISI, M. DITTMAR, L. DJAMBOZOV, I. DORNE, M. T. DOVA, E. DRAGO, D. DUCHESNEAU, F. DUHEM, P. DUINKER, I. DURAN, S. DUTTA, S. EASO, H. ELMAMOUNI, A. ENGLER, F. J. EPPLING, F. C. ERNE, P. EXTERMANN, R. FABBRETTI, M. FABRE, S. FALCIANO, A. FAVARA, J. FAY, M. FELCINI, T. FERGUSON, D. FERNANDEZ, G. FERNANDEZ, F. FERRONI, H. FESEFELDT, E. FIANDRINI, J. H. FIELD, F. FILTHAUT, P. H. FISHER, G. FORCONI, L. FREDJ, K. FREUDENREICH, M. GAILLOUD, Y. GALAKTIONOV, E. GALLO, S. N. GANGULI, P. GARCIAABIA, S. GENTILE, J. GERALD, N. GHEORDANESCU, S. GIAGU, S. GOLDFARB, J. GOLDSTEIN, Z. F. GONG, E. GONZALEZ, A. GOUGAS, D. GOUJON, G. GRATTA, M. W. GRUENEWALD, C. GU, M. GUANZIROLI, V. K. GUPTA, A. GURTU, H. R. GUSTAFSON, L. J. GUTAY, A. HASAN, D. HAUSCHILDT, J. T. HE, T. HEBBEKER, M. HEBERT, A. HERVE, K. HILGERS, H. HOFER, H. HOORANI, S. R. HOU, G. HU, B. ILLE, M. M. ILYAS, V. INNOCENTE, H. JANSSEN, B. N. JIN, L. W. JONES, P. DEJONG, I. JOSAMUTUBERRIA, A. KASSER, R. A. KHAN, Y. KAMYSHKOV, P. KAPINOS, J. S. KAPUSTINSKY, Y. KARYOTAKIS, M. KAUR, S. KHOKHAR, M. N. KIENZLEFOCACCI, D. KIM, J. K. KIM, S. C. KIM, Y. G. KIM, W. W. KINNISON, A. KIRKBY, D. KIRKBY, S. KIRSCH, W. KITTEL, A. KLIMENTOV, A. C. KONIG, E. KOFFEMAN, O. KORNADT, V. KOUTSENKO, A. KOULBARDIS, R. W. KRAEMER, T. KRAMER, V. R. KRASTEV, W. KRENZ, H. KUIJTEN, K. S. KUMAR, A. KUNIN, P. L. DEGUEVARA, G. LANDI, D. LANSKE, S. LANZANO, A. LEBEDEV, P. LEBRUN, P. LECOMTE, P. LECOQ, P. LECOULTRE, D. M. LEE, J. S. LEE, K. Y. LEE, I. LEEDOM, C. LEGGETT, J. M. 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PLYASKIN, M. POHL, V. POJIDAEV, H. POSTEMA, N. PRODUIT, J. M. QIAN, K. N. QURESHI, R. RAGHAVAN, G. RAHALCALLOT, P. G. RANCOITA, M. RATTAGGI, G. RAVEN, P. RAZIS, K. READ, M. REDAELLI, D. REN, Z. REN, M. RESCIGNO, S. REUCROFT, A. RICKER, S. RIEMANN, B. C. RIEMERS, K. RILES, O. RIND, H. A. RIZVI, S. RO, A. ROBOHM, F. J. RODRIGUEZ, B. P. ROE, M. ROHNER, S. ROHNER, L. ROMERO, S. ROSIERLEES, R. ROSMALEN, P. ROSSELET, W. VANROSSUM, S. ROTH, A. RUBBIA, J. A. RUBIO, H. RYKACZEWSKI, J. SALICIO, J. M. SALICIO, E. SANCHEZ, G. S. SANDERS, A. SANTOCCHIA, M. E. SARAKINOS, S. SARKAR, G. SARTORELLI, M. SASSOWSKY, G. SAUVAGE, C. SCHAFER, V. SCHEGELSKY, D. SCHMITZ, P. SCHMITZ, M. SCHNEEGANS, N. SCHOLZ, H. SCHOPPER, D. J. SCHOTANUS, S. SHOTKIN, H. J. SCHREIBER, J. SHUKLA, R. SCHULTE, K. SCHULTZE, J. SCHWENKE, G. SCHWERING, I. SCOTT, R. SEHGAL, P. G. SEILER, J. C. SENS, L. SERVOLI, I. SHEER, S. SHEVCHENKO, X. R. SHI, E. SHUMILOV, V. SHOUTKO, D. SON, A. SOPCZAK, V. SOULIMOV, C. SPARTIOTIS, T. 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C., ALOISIO, ALBERTO, ALVIGGI, MARIAGRAZIA, CHIEFARI, GIOVANNI, MEROLA, LEONARDO, NAPOLITANO, MARCO, PATRICELLI, SERGIO, SCIACCA, CRISOSTOMO, Acciarri, M., Adams, A., Adriani, O., Aguilarbenitez, M., Ahlen, S., Alcaraz, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., An, Q., Anderhub, H., Anderson, A. L., Andreev, V. P., Angelescu, T., Antonov, L., Antreasyan, D., Alkhazov, G., Arce, P., Arefiev, A., Azemoon, T., Aziz, T., P. V. K., Bagnaia, P., Bakken, J. A., Baksay, L., Ball, R. C., Banerjee, S., Banicz, K., Barillere, R., Barone, L., Baschirotto, A., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Bencze, G. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Bizzarri, R., Blaising, J. J., Bobbink, G. J., Bock, R., Bohm, A., Borgia, B., Boucham, A., Bourilkov, D., Bourquin, M., Boutigny, D., Bouwens, B., Brambilla, E., Branson, J. G., Brigljevic, V., Brock, I. C., Brooks, M., Bujak, A., Burger, J. D., Burger, W. J., Burgos, C., Busenitz, J., Buytenhuijs, A., Bykov, A., Cai, X. D., Capell, M., Romeo, G. C., Caria, M., Carlino, G., Cartacci, A. M., Casaus, J., Castello, R., Cavallo, N., Cerrada, M., Cesaroni, F., Chamizo, M., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, C., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Chung, S., Cifarelli, L., Cindolo, F., Civinini, C., Clare, I., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colino, N., Costantini, S., Cotorobai, F., Delacruz, B., Cui, X. T., Cui, X. Y., Dai, T. S., Dalessandro, R., Deasmundis, R., Degre, A., Deiters, K., Denes, E., Denes, P., Denotaristefani, F., Dibitonto, D., Diemoz, M., Dimitrov, H. R., Dionisi, C., Dittmar, M., Djambozov, L., Dorne, I., Dova, M. T., Drago, E., Duchesneau, D., Duhem, F., Duinker, P., Duran, I., Dutta, S., Easo, S., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. 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W., Taylor, L., Timellini, R., S. C. C., Ting, S. M., Toker, O., Tonutti, M., Tonwar, S. C., Toth, J., Trowitzsch, G., Tsaregorodtsev, A., Tsipolitis, G., Tully, C., Ulbricht, J., Urban, L., Uwer, U., Valente, D., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, J. C., Wang, S. L., Wang, Y. F., Wang, Z. M., Weber, A., Weber, J., Weill, R., Willmott, C., Wittgenstein, F., Wright, D., S. X., Wu, Wynhoff, S., Z. Z., Xu, Yang, B. Z., Yang, C. G., Yang, G., Yao, X. Y., C. H., Ye, J. B., Ye, Ye, Q., Yeh, S. C., You, J. M., Yunus, N., Yzerman, M., Zaccardelli, C., Zemp, P., Zeng, M., Zeng, Y., Zhang, D. H., Zhang, Z. P., Zhou, B., Zhou, G. J., Zhou, J. F., Zhu, R. Y., Zichichi, A., B. C. C., IHEF (IoP, FNWI), 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), Institut de Physique Nucléaire de Lyon (IPNL), 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), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), 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), and L3
Subjects: Nuclear and High Energy Physics, production polar angle, FERMION PAIR PRODUCTION, Electron–positron annihilation, QED CORRECTIONS, Electron, 01 natural sciences, 7. Clean energy, PARAMETERS, Nuclear physics, Z-RESONANCE, MONTE-CARLO, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Pseudovector, Ciencias Exactas, Physics, Neutral current, CONSTRUCTION, 010308 nuclear & particles physics, TAU-POLARIZATION, polarization of τ-leptons, Electroweak interaction, Física, axial-vector, Weinberg angle, FERMION-PAIR PRODUCTION, HIGH-ENERGY LEPTON, Polarization (waves), Z-PEAK, LEPTONS, Angular dependence, Atomic physics, DECAY, Particle Physics - Experiment
Abstract: With a data sample of 86 000 Z → τ+τ−(γ) events collected in 1990 through 1993 we have measured the polarization of τ-leptons as a function of the production polar angle using the following 1-prong τ decay modes: r- ~ e-~evT, r- --+/.t-Vuv~, r- ---+ 7r-(K-)v~, r- ~ p-v, and r- ---+ a~'v, We obtain for the ratio of vector to axial-vector weak neutral couplings for electrons gVe/gAe=0.0791±0.0099(stat)±0.0025 (syst) and taus gVτ/gAτ=0.0752±0.0063 (stat)±0.0045 (syst) consistent with the hypothesis of e - τ universality. Assuming universality of the e - τ neutral current we determine the effective electroweak mixing angle to be sin2 θeffw = 0.2309 ± 0.0016.., Facultad de Ciencias Exactas
Published: 1994

126. A Study of 4-fermion Processes At Lep

Author: Adam, A., Adriani, O., Aguilarbenitez, M., Ahlen, S., Alcaraz, J., Aloisio, A., Alverson, G., Alviggi, M.G., Ambrosi, G., An, Q., Anderhub, H., Rodriguez, F.J., Stickland, D.P., Behner, F., Roe, B.P., Rohner, M., Fredj, L., Rohner, S., Lustermann, W., White, M., Ricker, A., Mills, G.B., Malgeri, L., Romero, L., Duchesneau, D., Kasser, A., Rosierlees, S., Rosmalen, R., Hu, G., Freudenreich, K., Rosselet, P., Rossum, W. van, Riles, K., Kirsch, S., Roth, S., Rubbia, A., Burger, W.J., Willmott, C., Behrens, J., Ma, J.M., Rubio, J.A., Rykaczewski, H., Baba, P.V.K.S., Mir, Y., Sachwitz, M., Fernandez, G., Khan, R.A., Sticozzi, F., Duinker, P., Salicio, J., Busenitz, J., Salicio, J.M., Wittgenstein, F., Sanders, G.S., Mirabelli, G., Santocchia, A., Shi, X.R., Dhina, M., Sarakinos, M.S., Banicz, K., Sartorelli, G., Sassowsky, M., Bencze, G.L., Stone, H., Marzano, F., Mnich, J., Sauvage, G., Kamyshkov, Y., Marin, A., Kuijten, H., Friebel, W., Schafer, C., Duran, I., Schegelsky, V., Schmitz, D., Schmitz, P., Brock, I.C., Ma, W.G., Schneegans, M., Kittel, W., Schopper, H., Kumar, K.S., Strauch, K., Fukushima, M., Schotanus, D.J., Sciacca, C., Shotkin, S., Moller, M., Schreiber, H.J., Kapinos, P., Berdugo, J., Shukla, J., Andreev, V.P., Bagnaia, P., Buytenhuijs, A., Schulte, R., Fackler, O., Macdermott, M., Ilyas, M.M., Schultze, K., Sudhakar, K., Wright, D., Engler, A., Sultanov, G., Betev, B.L., Kunin, A., Sun, L.Z., Pohl, M., Cai, X.D., Spillantini, P., Qian, J.M., Susinno, G.F., Khokhar, S., Malik, R., Suter, H., Swain, J.D., Luckey, D., Landi, G., Syed, A.A., Tang, X.W., McNally, D., Taylor, L., Terzi, G., Gailloud, M., Capell, M., Eppling, F.J., Pojidaev, V., Ting, S.C.C., Ting, S.M., Anderson, A.L., Biasini, M., Kraemer, R.W., Malinin, A., Wu, S.X., Kienzlefocacci, M.N., Toker, O., Galaktionov, Y., Tonutti, M., Caria, M., Tonwar, S.C., Toth, J., Wang, Z.M., Josamutuberria, I., Tsaregorodtsev, A., Djambazov, L., Tsipolitis, G., Tully, C., Erne, F.C., Blaising, J.J., Ren, D., Tung, K.L., Mana, C., Raven, G., Monteleoni, B., Lanske, D., Ulbricht, J., Kim, J.K., Urban, L., Biland, A., Uwer, U., Postema, H., Valente, E., Merk, M., Walle, R.T. van de, Barone, L., Wynhoff, S., Lanzano, S., Vetlitsky, I., Vorobiev, I., Viertel, G., Vikas, P., Maolinbay, M., Extermann, P., Vikas, U., Dalessandro, R., Diemoz, M., Gallo, E., Vivargent, M., Koffeman, E., Qi, Z.D., Vogel, H., Wyslouch, B., Carlino, G., Kim, Y.G., Xie, Y.Y., Falciano, S., Morand, R., Xu, J.G., Scott, I., Antreasyan, D., Berges, P., Xu, Z.Z., Bao, J., Becattini, F., Xue, Z.L., Yan, D.S., Piroue, P.A., Morganti, S., Yang, B.Z., Yang, C.G., Yang, G., Bobbink, G.J., Lebedev, A., Ganguli, S.N., Kinnison, W.W., Sehgal, R., Ye, C.H., Ye, J.B., Dai, T.S., Fan, S.J., Qureshi, K.N., Cartacci, A.M., Martin, J.P., Ye, Q., Lebrun, P., Yeh, S.C., Garciaabia, P., Yin, Z.W., You, J.M., Brooks, M., Yunus, N., Kapustinsky, J.S., Yzerman, M., Zaccardelli, C., Kirkby, A., Felcini, M., Sopczak, A., Zemp, P., Raghavan, R., Shumilov, E., Moulai, N.E., Bock, R., Martinezlaso, L., Zeng, M., Angelescu, T., Zeng, Y., Seiler, P.G., Zhang, D.H., Riemann, S., Zhang, Z.P., Castello, R., Mount, R., Zhou, B., Borgia, B., Zhou, G.J., Zhou, J.F., Rahalcallot, G., Kirkby, D., Zhu, R.Y., Hu, G.Q., Lecomte, P., Zichichi, A., Meschini, M., Sens, J.C., Zwaan, B.O.C. van der, Cerrada, M., Gele, D., Massaro, G.G.G., Cesaroni, F., Klimentov, A., Chang, Y.H., Vorobyov, A.A., Deiters, K., Fabbretti, R., Chaturvedi, U.K., Dova, M.T., Easo, S., Chemarin, M., Chen, A., Schwenke, J., Chen, C., Chen, G., Chen, G.M., Ferguson, T., Muller, S., Lecoq, P., Mazumdar, K., Vuilleumier, L., Chen, H.F., Chen, H.S., Konig, A.C., Servoli, L., Gentile, S., Razis, P., Chen, M., Nadtochy, A., Chen, W.Y., Lecoultre, P., Chiefari, G., Chien, C.Y., Choi, M.T., Marchesini, P., Chung, S., Civinini, C., McBride, P., Kornadt, O., Weill, R., Clare, I., Sheer, I., Bizzarri, R., Fernandez, D., Read, K., Clare, R., Deasmundis, R., Coan, T.E., Wadhwa, M., Cohn, H.O., Starosta, R., Coignet, G., Gheordanescu, N., Colino, N., Ferroni, F., Contin, A., Costantini, S., Shen, D.Z., McMahon, T., Cotorobai, F., Ludovici, L., Nagy, E., Cui, X.T., Wallraff, W., Cui, X.Y., Giagu, S., Lee, D.M., Ren, Z., Goldfarb, S., Merola, L., Gong, Z.F., Bosetti, M., Innocente, V., Gonzalez, E., Karyotakis, Y., Aziz, T., Gougas, A., Arce, P., Vogt, H., Goujon, D., Gratta, G., Gruenewald, M., Koutsenko, V., Napolitano, M., Becker, U., Bourilkov, D., Gu, C., Guanziroli, M., Barillere, R., Wang, C., Bakken, J.A., Shoutko, V., Guo, J.K., Gupta, V.K., Nessitedaldi, F., Gurtu, A., Gustafson, H.R., Gutay, L.J., Rancoita, P.G., Arefiev, A., Hangarter, K., Rescigno, M., Metzger, W.J., Hasan, A., Wang, C.R., Fay, J., Koulbardis, A., Son, D., Hauschildt, D., Ille, B., He, C.F., Bourquin, M., He, J.T., Hebbeker, T., Lee, J.S., Hebert, M., Kramer, T., Herve, A., Hilgers, K., Wang, X.L., Reucroft, S., Hofer, H., Plasil, F., Atamanchuk, A., Boutigny, D., Hoorani, H., Lee, K.Y., Newman, H., Soulimov, V., Leedom, I., Riemers, B.C., Leggett, C., Fesefeldt, H., Legoff, J.M., Marion, F., Dibitonto, D., Leiste, R., Denes, E., Bohm, A., Lenti, M., Leonardi, E., Li, C., Mi, Y., Elmamouni, H., Fiandrini, E., Li, H.T., Ball, R.C., Drago, E., Bouwens, B., Dimitrov, H.R., Weber, A., Li, P.J., Liao, J.Y., Lin, W.T., Lin, Z.Y., Linde, F.L., Shevchenko, S., Denes, P., Lindemann, B., Bertucci, B., Rind, O., Lista, L., Brambilla, E., Mihul, A., Weber, J., Liu, Y., Luminari, L., Lohmann, W., Field, J.H., Longo, E., Banerjee, S., Baschirotto, A., Lu, W., Lu, Y.S., Lubbers, J.M., Branson, J.G., Spickermann, T., Lubelsmeyer, K., Schwering, G., Denotaristefani, F., Antonov, L., Luci, C., Neyer, C., Wenaus, T.J., Niaz, M.A., Steuer, M., Nippe, A., Krastev, V.R., Nowak, H., Rattaggi, M., Azemoon, T., Organtini, G., Janssen, H., Pandoulas, D., Paoletti, S., Paolucci, P., Rizvi, H.A., Kim, S.C., Krenz, W., Pascale, G., Dionisi, C., Kaur, M., Filthaut, F., Bujak, A., Passaleva, G., Battiston, R., Patricelli, S., Paul, T., Pauluzzi, M., Wang, Y.F., Jin, B.N., Paus, C., Fabre, M., Pauss, F., Fisher, P.H., Ro, S., Burger, J.D., Pei, Y.J., Plyaskin, V., Pensotti, S., Krivshich, A., Perretgallix, D., Dittmar, M., Perrier, J., Pevsner, A., Bay, A., Forconi, G., Wenninger, J., Piccolo, D., Bilei, G.M., Jones, L.W., Degre, A., Pieri, M., Adam, A., Adriani, O., Aguilarbenitez, M., Ahlen, S., Alcaraz, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., An, Q., Anderhub, H., Anderson, A. L., Andreev, V. P., Angelescu, T., Antonov, L., Antreasyan, D., Arce, P., Arefiev, A., Atamanchuk, A., Azemoon, T., Aziz, T., P. V. K., Bagnaia, P., Bakken, J. A., Ball, R. C., Banerjee, S., Banicz, K., Bao, J., Barillere, R., Barone, L., Baschirotto, A., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Behrens, J., Bencze, G. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Bizzarri, R., Blaising, J. J., Bobbink, G. J., Bock, R., Bohm, A., Borgia, B., Bosetti, M., Bourilkov, D., Bourquin, M., Boutigny, D., Bouwens, B., Brambilla, E., Branson, J. G., Brock, I. C., Brooks, M., Bujak, A., Burger, J. D., Burger, W. J., Busenitz, J., Buytenhuijs, A., Cai, X. D., Capell, M., Caria, M., Carlino, G., Cartacci, A. M., Castello, R., Cerrada, M., Cesaroni, F., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, C., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chen, W. Y., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Chung, S., Civinini, C., Clare, I., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colino, N., Contin, A., Costantini, S., Cotorobai, F., Cui, X. T., Cui, X. Y., Dai, T. S., Dalessandro, R., Deasmundis, R., Degre, A., Deiters, K., Denes, E., Denes, P., Denotaristefani, F., Dhina, M., Dibitonto, D., Diemoz, M., Dimitrov, H. R., Dionisi, C., Dittmar, M., Djambazov, L., Dova, M. T., Drago, E., Duchesneau, D., Duinker, P., Duran, I., Easo, S., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. C., Extermann, P., Fabbretti, R., Fabre, M., Falciano, S., Fan, S. J., Fackler, O., Fay, J., Felcini, M., Ferguson, T., Fernandez, D., Fernandez, G., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Forconi, G., Fredj, L., Freudenreich, K., Friebel, W., Fukushima, M., Gailloud, M., Galaktionov, Y., Gallo, E., Ganguli, S. N., Garciaabia, P., Gele, D., Gentile, S., Gheordanescu, N., Giagu, S., Goldfarb, S., Gong, Z. F., Gonzalez, E., Gougas, A., Goujon, D., Gratta, G., Gruenewald, M., Gu, C., Guanziroli, M., Guo, J. K., Gupta, V. K., Gurtu, A., Gustafson, H. R., Gutay, L. J., Hangarter, K., Hasan, A., Hauschildt, D., C. F., He, J. T., He, Hebbeker, T., Hebert, M., Herve, A., Hilgers, K., Hofer, H., Hoorani, H., Hu, G., G. Q., Hu, Ille, B., Ilyas, M. M., Innocente, V., Janssen, H., Jin, B. N., Jones, L. W., Josamutuberria, I., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Khokhar, S., Kienzlefocacci, M. N., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, A., Kirkby, D., Kirsch, S., Kittel, W., Klimentov, A., Konig, A. C., Koffeman, E., Kornadt, O., Koutsenko, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krastev, V. R., Krenz, W., Krivshich, A., Kuijten, H., Kumar, K. S., Kunin, A., Landi, G., Lanske, D., Lanzano, S., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, P., Lee, D. M., Lee, J. S., Lee, K. Y., Leedom, I., Leggett, C., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Li, C., H. T., Li, P. J., Li, Liao, J. Y., Lin, W. T., Lin, Z. Y., Linde, F. L., Lindemann, B., Lista, L., Liu, Y., Lohmann, W., Longo, E., Lu, W., Y. S., Lu, Lubbers, J. M., Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., J. M., Ma, W. G., Ma, Macdermott, M., Malgeri, L., Malik, R., Malinin, A., Mana, C., Maolinbay, M., Marchesini, P., Marion, F., Marin, A., Martin, J. P., Martinezlaso, L., Marzano, F., G. G. G., Mazumdar, K., Mcbride, P., Mcmahon, T., Mcnally, D., Merk, M., Merola, Leonardo, Meschini, M., Metzger, W. J., Mi, Y., Mihul, A., Mills, G. B., Mir, Y., Mirabelli, G., Mnich, J., Moller, M., Monteleoni, B., Morand, R., Morganti, S., Moulai, N. E., Mount, R., Muller, S., Nadtochy, A., Nagy, E., Napolitano, Marco, Nessitedaldi, F., Newman, H., Neyer, C., Niaz, M. A., Nippe, A., Nowak, H., Organtini, G., Pandoulas, D., Paoletti, S., Paolucci, P., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pei, Y. J., Pensotti, S., Perretgallix, D., Perrier, J., Pevsner, A., Piccolo, D., Pieri, M., Piroue, P. A., Plasil, F., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Z. D., Qi, Qian, J. M., Qureshi, K. N., Raghavan, R., Rahalcallot, G., Rancoita, P. G., Rattaggi, M., Raven, G., Razis, P., Read, K., Ren, D., Ren, Z., Rescigno, M., Reucroft, S., Ricker, A., Riemann, S., Riemers, B. C., Riles, K., Rind, O., Rizvi, H. A., Ro, S., Rodriguez, F. J., Roe, B. P., Rohner, M., Rohner, S., Romero, L., Rosierlees, S., Rosmalen, R., Rosselet, P., Vanrossum, W., Roth, S., Rubbia, A., Rubio, J. A., Rykaczewski, H., Sachwitz, M., Salicio, J., Salicio, J. M., Sanders, G. S., Santocchia, A., Sarakinos, M. S., Sartorelli, G., Sassowsky, M., Sauvage, G., Schafer, C., Schegelsky, V., Schmitz, D., Schmitz, P., Schneegans, M., Schopper, H., Schotanus, D. J., Shotkin, S., Schreiber, H. J., Shukla, J., Schulte, R., Schultze, K., Schwenke, J., Schwering, G., Sciacca, Crisostomo, Scott, I., Sehgal, R., Seiler, P. G., Sens, J. C., Servoli, L., Sheer, I., Shen, D. Z., Shevchenko, S., Shi, X. R., Shumilov, E., Shoutko, V., Son, D., Sopczak, A., Soulimov, V., Spickermann, T., Spillantini, P., Starosta, R., Steuer, M., Stickland, D. P., Sticozzi, F., Stone, H., Strauch, K., Sudhakar, K., Sultanov, G., Sun, L. Z., Susinno, G. F., Suter, H., Swain, J. D., Syed, A. A., Tang, X. W., Taylor, L., Terzi, G., S. C. C., Ting, S. M., Toker, O., Tonutti, M., Tonwar, S. C., Toth, J., Tsaregorodtsev, A., Tsipolitis, G., Tully, C., Tung, K. L., Ulbricht, J., Urban, L., Uwer, U., Valente, E., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, C., Wang, C. R., 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., S. X., Wu, Wynhoff, S., Wyslouch, B., Xie, Y. Y., J. G., Xu, Z. Z., Xu, Xue, Z. L., Yan, D. S., Yang, B. Z., Yang, C. G., Yang, G., C. H., Ye, J. B., Ye, 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, G. J., Zhou, J. F., Zhu, R. Y., Zichichi, A., and B. O. C.
Subjects: BHABHA SCATTERING, E+E-PHYSICS, MONTE-CARLO SIMULATION, RADIATIVE-CORRECTIONS, High Energy Physics::Experiment, PHOTON CORRECTIONS, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), DECAY, JET FRAGMENTATION, HIGH-ENERGIES
Abstract: We have studied the four-fermion processes ee --> eeee, eemumu, eetautau, mumumumu, mumutautau, eeqq and mumuqq with the L3 detector at LEP. For an integrated luminosity of 36 pb-1, corresponding to 960000 hadronic Z decays, we find a total of 67 candidate events. The rate and kinematical distributions are found to be consistent with first order Monte Carlo calculations based on the Standard Model. No significant structure is seen in the dilepton invariant or recoil mass spectra.
Published: 1994

127. MEASUREMENT OF CROSS-SECTIONS AND LEPTONIC FORWARD-BACKWARD ASYMMETRIES AT THE Z-POLE AND DETERMINATION OF ELECTROWEAK PARAMETERS

Author: S. X. Wu, M. Yzerman, M. Gruenewald, F. Ferroni, Jun Guo, Lamberto Luminari, I. Vorobiev, D. DiBitonto, Y. Zeng, Ph. Rosselet, M. Redaelli, B. Lindemann, Marcel Merk, M. Steuer, U. K. Chaturvedi, J. Weber, Giovanni Ambrosi, Y. S. Lu, F. Cesaroni, M. Chamizo, J. Perrier, Georgi Sultanov, T. S. Dai, J. Y. Liao, K. Banicz, D. Perret-Gallix, R. A. Khan, R. Fabbretti, R. C. Ball, S. Easo, Emilio Leonardi, Bolek Wyslouch, J. H. Field, C. Y. Chien, A. Kirkby, C. Li, Marco Meschini, Raffaello D'Alessandro, V. Plyaskin, R. Bock, G. Sartorelli, D. Kirkby, Chenjie Gu, C. F. He, Luca Lista, D. Fernandez, Leonardo Merola, M. T. Dova, L. Baksay, F. Cotorobai, Werner Lustermann, Dimitri Bourilkov, Yu. Galaktionov, J. Alcaraz, Juven Wang, Yanwen Liu, Willis Lin, T. Azemoon, Cheng Chen, A. Mihul, C. Zaccardelli, W. W. Kinnison, V. P. Andreev, S. C. Yeh, Y. J. Pei, M. Möller, H. F. Chen, Samuel C.C. Ting, H. O. Cohn, A. Pevsner, T. Paul, M. MacDermott, Christopher George Tully, Sabine Riemann, Marcos Cerrada, Y. Mi, P. J. Li, A. M. Cartacci, R. Raghavan, B. De La Cruz, Axel König, G. Passaleva, M. Chemarin, A. Buytenhuijs, C. Burgos, P. Lebrun, M. A. Niaz, Jianming Qian, G. Hu, G. M. Chen, P. Schmitz, Wolfgang Lohmann, G. Alkhazov, Laurent Vuilleumier, A. C. Weber, BT Bouwens, H. El Mamouni, M. Acciarri, M. Wadhwa, L. Antonov, G. Chiefari, S. Shevchenko, K. Freudenreich, H. Vogt, B. Bertucci, X. T. Cui, N. E. Moulai, P. Extermann, G. Landi, S. C. Kim, Stefan Kirsch, S. Röhner, A. Favara, P. Lecomte, Christoph Schäfer, I. Leedom, B. Z. Yang, Z. Z. Xu, J. Wenninger, H. A. Rizvi, U. Uwer, A. Kunin, H. Hofer, G. Chen, K. L. Tung, G. Mirabelli, Pierluigi Paolucci, M. Gailloud, X. R. Shi, P. Arce, V. Pojidaev, J. Salicio, D. Goujon, C. Spartiotis, J. M. Ma, Hafeez R Hoorani, F. Behner, Andrea Baschirotto, Nicanor Colino, S. Pensotti, R. Leiste, A. Arefiev, L. Romero, Christoph Paus, R. Barillère, A. Lebedev, Dong-Chul Son, T. Kramer, F. J. Rodriguez, N. Yunus, Kajari Mazumdar, K. Lübelsmeyer, Piero Spillantini, Aa Vorobyov, Ren-Yuan Zhu, Luciano Barone, L. Malgeri, R. Malik, Felicitas Pauss, P. Vikas, F. Wittgenstein, X. D. Cai, S. Rosier-Lees, Carlos Willmott, S. Khokhar, T.R. McMahon, Speranza Falciano, M. L. Brooks, Vincenzo Innocente, H. S. Chen, J. M. Lubbers, H. R. Gustafson, D.W. Schmitz, G. Pascale, W. J. Metzger, G.G.G. Massaro, G. Gratta, Claudio Luci, C. Maña, I. C. Brock, A. Bykov, L. Ludovici, E. Drago, Tariq Aziz, S. Goldfarb, P. Le Coultre, J. J. Blaising, Stefano Giagu, D. Pandoulas, K. Riles, A. Gurtu, G. Sauvage, Els Koffeman, C. Leggett, Huai-Fan Li, W. J. Burger, T. Spickermann, J. Mnich, Michael Dittmar, N. Scholz, H. J. Schreiber, Robert Clare, K. Hangarter, Bernard Ille, G. Tsipolitis, S. Müller, B. Monteleoni, F. Sticozzi, S. Costantini, M. Schneegans, B. P. Roe, An.A. Vorobyov, W. G. Ma, Zhuoxiang Ren, A. Rubbia, Z. D. Qi, R. Weill, Thomas Hebbeker, F. Marzano, Paul Lecoq, R. W. Kraemer, D. J. Schotanus, J. M. You, W. Friebel, J. T. He, M. Guanziroli, M. S. Sarakinos, V. R. Krastev, M. Napolitano, I. Josa-Mutuberria, H. Anderhub, O. Adriani, J. S. Lee, Lucas Taylor, D. Z. Shen, R. Morand, Z. L. Xue, J. A. Bakken, M. Sassowsky, E. Brambilla, Mariagrazia Alviggi, G. Coignet, W. Krenz, A. Hasan, J. D. Swain, J. K. Kim, R. Starosta, P. McBride, Y. F. Wang, L. Servoli, J. P. Martin, A. L. Anderson, F. Marion, T. Angelescu, G. A. Yang, F. L. Linde, J. Tóth, Valery Schegelsky, Antonino Zichichi, G.B. Mills, Ph Fisher, H. Rykaczewski, Giovanni Organtini, Y. Karyotakis, Peter Denes, M. Bourquin, K. Strauch, Harvey B Newman, K. Hilgers, K. Sudhakar, A. Marin, L. Djambazov, J. Casaus, Yu. Kamyshkov, J. Bao, I. Vetlitsky, Howard A. Stone, A. Böhm, W. van Rossum, Zheng Wang, J. F. Zhou, E. Shumilov, Crisostomo Sciacca, Marco Pieri, D. Luckey, Gy L. Bencze, Reinhard W. Schulte, F. C. Erné, R. Bizzarri, Paolo Bagnaia, S. Chung, Simone Paoletti, S. P. Ahlen, M. Vivargent, M. 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Reucroft, A. Koulbardis, G. F. Susinno, Simonetta Gentile, X. W. Tang, I. Sheer, A. Klimentov, P. A. Piroué, G. Viertel, B. Zhou, J. C. Pinto, Thomas Ferguson, F. J. Eppling, G. J. Zhou, L. W. Jones, D. S. Yan, B. C.C. van der Zwaan, S. Shotkin, O. Rind, H. Janssen, D. Ren, Kenneth Francis Read, P. G. Rancoita, J. Shukla, H. Nowak, D. Hauschildt, M. M. Ilyas, V. Koutsenko, J. M. Le Goff, D. H. Wright, U. Vikas, N. Gheordanescu, L. Z. Sun, W. Wallraff, P. Levtchenko, G. S. Sanders, M. Hebert, Panos A Razis, P. G. Seiler, J. A. Rubio, S. Banerjee, S. R. Hou, P. Marchesini, O. Toker, Ming Zeng, J. Berdugo, E. J. Sanchez, M. Pauluzzi, G. M. Bilei, V. Brigljevic, M. Röhner, Yuehong Xie, Andrea Contin, A. Kasser, Guofan Hu, D. P. Stickland, S. Patricelli, Q. Ye, Y. Mir, C. H. Ye, M. T. Choi, Francesca Nessi-Tedaldi, L. Fredj, T. E. Coan, J. G. Branson, R. T. Van de Walle, G. Rahal-Callot, C. Dionisi, Davide Piccolo, Pablo Garcia-Abia, Alain Hervé, Z. W. Yin, S. N. Ganguli, K. Schultze, A. Degré, A. Bay, I. Scott, H. Suter, Zhenhua Zhang, D. Lanske, E. Valente, M. Rattaggi, Carlo Civinini, M. Maolinbay, G. Raven, M. Aguilar-Benitez, Herwig Schopper, H. Postema, M. White, Hans J. Vogel, S. Morganti, J. Schwenke, X. Y. Cui, E. Fiandrini, A. Nippe, D. Duchesneau, Alexander Malinin, X. L. Wang, Maurizio Biasini, Marta Felcini, Francesco Becattini, E. Gonzalez, S. Lanzano, S. Wynhoff, V. K. Gupta, S. Ro, Gianpaolo Carlino, F. DeNotaristefani, P. Berges, W. Kittel, E. Nagy, M. Fabre, D. M. Lee, H. Kuijten, M. N. Kienzle-Focacci, R. Rosmalen, V. Soulimov, A. Tsaregorodtsev, K. Y. Lee, J. M. Salicio, R. Mount, Nicola Cavallo, Z. F. Gong, Y. G. Kim, Y. H. Chang, George Alverson, A. A. Syed, M. Rescigno, Acciarri, M., Adam, A., Adriani, O., Aguilarbenitez, M., Ahlen, S., Alcaraz, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., An, Q., Anderhub, H., Anderson, A. L., Andreev, V. 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L., Landi, G., Lanske, D., Lanzano, S., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Lecultre, P., Lee, D. M., Lee, J. S., Lee, K. Y., Leedom, I., Leggett, C., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Levtchenko, P., Li, C., H. T., Li, P. J., Li, Liao, J. Y., Lin, W. T., Lin, Z. Y., Linde, F. L., Lindemann, B., Lista, L., Liu, Y., Lohmann, W., Longo, E., Lu, W., Y. S., Lu, Lubbers, J. M., Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., J. M., Ma, W. G., Ma, Macdermott, M., Malgeri, L., Malik, R., Malinin, A., Mana, C., Maolinbay, M., Marchesini, P., Marion, F., Marin, A., Martin, J. P., Marzano, F., Massaro, G. G., Mazumdar, K., Mcbride, P., Mcmahon, T., Mcnally, D., Merk, M., Merola, Leonardo, Meschini, M., Metzger, W. J., Mi, Y., Mihul, A., Mills, G. B., Mir, Y., Mirabelli, G., Mnich, J., Moller, M., Monteleoni, B., Morand, R., Morganti, S., Moulai, N. 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T., Vetlitsky, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, J. C., Wang, C. R., Wang, X. L., Wang, Y. F., Wang, Z. M., Weber, A., Weber, J., Weill, R., Wenninger, J., White, M., Willmott, C., Wittgenstein, F., Wright, D., S. X., Wu, Wynhoff, S., Wyslouch, B., Xie, Y. Y., J. G., Xu, Z. Z., Xu, Xue, Z. L., Yan, D. S., Yang, B. Z., Yang, C. G., Yang, G., C. H., Ye, J. B., Ye, 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, G. J., Zhou, J. F., Zhu, R. Y., Zichichi, A., 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), Institut de Physique Nucléaire de Lyon (IPNL), 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), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), 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), and L3
Subjects: Particle physics, E+E ANNIHILATION, Physics and Astronomy (miscellaneous), FERMION PAIR PRODUCTION, LUND MONTE-CARLO, Electron–positron annihilation, Hadron, 7. Clean energy, 01 natural sciences, JET FRAGMENTATION, Nuclear physics, BHABHA SCATTERING, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], la̵rge hadron collider, RADIATIVE-CORRECTIONS, Partículas Elementales, 010306 general physics, Engineering (miscellaneous), GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Ciencias Exactas, Boson, Physics, 010308 nuclear & particles physics, TAU-POLARIZATION, Electroweak interaction, High Energy Physics::Phenomenology, Física, Weinberg angle, CARLO EVENT GENERATOR, W-BOSON MASS, L3 detector, Higgs boson, High Energy Physics::Experiment, Neutrino, PHOTON CORRECTIONS, Particle Physics - Experiment, Lepton
Abstract: We report on the measurement of the leptonic and hadronic cross sections and leptonic forward-backward asymmetries at theZ peak with the L3 detector at LEP. The total luminosity of 40.8 pb−1 collected in the years 1990, 1991 and 1992 corresponds to 1.09·106 hadronic and 0.98·105 leptonic Z decays observed. These data allow us to determine the electroweak parameters. From the cross sections we derive the properties of the Z boson: MZ=91195 ± 9 MeVΓZ=2494 ± 10 MeV Γhad=1748 ± 10 MeVΓℓ=83.49 ± 0.46MeV assuming lepton universality. We obtain an invisible width of Γinv=496.5 ± 7.9 MeV which, in the Standard Model, corresponds to a number of light neutrino species of Nv=2.981 ± 0.050. Using also the three leptonic forward-backward asymmetries and the average tau polarization, we determine the effective vector and axial-vector coupling constants of the neutral weak current to charged leptons to be: g¯ℓv=−0.0378+0.0045−0.0042 g¯ℓA=−0.4998 ± 0.0014. Within the framework of the Standard Model, and including our measurements of the Z→b¯b forward-backward asymmetry and partial decay width, we derive an effective electroweak mixing angle of sin2¯θW=0.2326 ± 0.0012 . We obtain an estimate for the strong coupling constant, αS=0.142 ± 0.013 and for the top-quark mass,mt =158+32−40 ± 19(Higgs) GeV, where the second error arises due to the uncertainty in the Higgs-boson mass., Facultad de Ciencias Exactas
Published: 1994

128. Measurement of Inclusive Production of Neutral Hadrons From Z-decays

Author: M. ACCIARRI, A. ADAM, O. ADRIANI, M. AGUILARBENITEZ, S. AHLEN, J. ALCARAZ, G. ALVERSON, G. AMBROSI, Q. AN, H. ANDERHUB, A. L. ANDERSON, V. P. ANDREEV, T. ANGELESCU, L. ANTONOV, D. ANTREASYAN, G. ALKHAZOV, P. ARCE, A. AREFIEV, T. AZEMOON, T. AZIZ, P. V. K., P. BAGNAIA, J. A. BAKKEN, L. BAKSAY, R. C. BALL, S. BANERJEE, K. BANICZ, J. BAO, R. BARILLERE, L. BARONE, A. BASCHIROTTO, R. BATTISTON, A. BAY, F. BECATTINI, U. BECKER, F. BEHNER, G. L. BENCZE, J. BERDUGO, P. BERGES, B. BERTUCCI, B. L. BETEV, M. BIASINI, A. BILAND, G. M. BILEI, R. BIZZARRI, J. J. BLAISING, G. J. BOBBINK, R. BOCK, A. BOHM, B. BORGIA, D. BOURILKOV, M. BOURQUIN, D. BOUTIGNY, B. BOUWENS, E. BRAMBILLA, J. G. BRANSON, V. BRIGLJEVIC, I. C. BROCK, M. BROOKS, A. BUJAK, J. D. BURGER, W. J. BURGER, C. BURGOS, J. BUSENITZ, A. BUYTENHUIJS, A. BYKOV, X. D. CAI, M. CAPELL, M. CARIA, G. CARLINO, A. M. CARTACCI, J. CASAUS, R. CASTELLO, N. CAVALLO, M. CERRADA, F. CESARONI, M. CHAMIZO, Y. H. CHANG, U. K. CHATURVEDI, M. CHEMARIN, A. CHEN, C. CHEN, G. CHEN, G. M. CHEN, H. F. CHEN, H. S. CHEN, M. CHEN, C. Y. CHIEN, M. T. CHOI, S. CHUNG, C. CIVININI, J. CLARE, R. CLARE, T. E. COAN, H. O. COHN, G. COIGNET, N. COLINO, A. CONTIN, S. COSTANTINI, F. COTOROBAI, B. DELACRUZ, X. T. CUI, X. Y. CUI, T. S. DAI, R. DALESSANDRO, R. DEASMUNDIS, A. DEGRE, K. DEITERS, E. DENES, P. DENES, F. DENOTARISTEFANI, D. DIBITONTO, M. DIEMOZ, H. R. DIMITROV, C. DIONISI, M. DITTMAR, L. DJAMBAZOV, M. T. DOVA, E. DRAGO, D. DUCHESNEAU, P. DUINKER, I. DURAN, S. EASO, H. ELMAMOUNI, A. ENGLER, F. J. EPPLING, F. C. ERNE, P. EXTERMANN, R. FABBRETTI, M. FABRE, S. FALCIANO, S. J. FAN, A. FAVARA, J. FAY, M. FELCINI, T. FERGUSON, D. FERNANDEZ, G. FERNANDEZ, F. FERRONI, H. FESEFELDT, E. FANDRINI, J. Y. H., F. FILTHAUT, P. H. FISHER, G. FORCONI, L. FREDJ, K. FREUDENREICH, W. FRIEBEL, M. FUKUSHIMA, M. GAILLOUD, Y. GALAKTIONOV, E. GALLO, S. N. GANGULI, P. GARCIAABIA, S. GENTILE, N. GHEORDANESCU, S. GIAGU, S. GOLDFARB, Z. F. GONG, D. E. GONZALEZ, A. GOUGAS, D. GOUJON, G. GRATTA, M. GRUENEWALD, C. GU, M. GUANZIROLI, J. K. GUO, V. K. GUPTA, A. GURTU, H. R. GUSTAFSON, L. J. GUTAY, K. HANGARTER, A. HASAN, D. HAUSCHILDT, C. F. HE, J. T. HE, T. HEBBEKER, M. HEBERT, A. HERVE, K. HILGERS, H. HOFER, H. HOORANI, S. R. HOU, G. HU, G. Q. HU, B. ILLE, M. M. ILYAS, V. INNOCENTE, H. JANSSEN, B. N. JIN, L. W. JONES, I. JOSAMUTUBERRIA, A. KASSER, R. A. KHAN, Y. KAMYSHKOV, P. KAPINOS, J. S. KAPUSTINSKY, Y. KARYOTAKIS, M. KAUR, S. KHOKHAR, M. N. KIENZLEFOCACCI, J. K. KIM, S. C. KIM, Y. G. KIM, W. W. KINNISON, A. KIRKBY, D. KIRKBY, S. KIRSCH, W. KITTEL, A. KLIMENTOV, A. C. KONIG, E. KOFFEMAN, O. KORNADT, V. KOUTSENKO, A. KOULBARDIS, R. W. KRAEMER, T. KRAMER, V. R. KRASTEV, W. KRENZ, H. KUIJTEN, K. S. KUMAR, A. KUNIN, P. L. DEGUEVARA, G. LANDI, D. LANSKE, S. LANZANO, A. LEBEDEV, P. LEBRUN, P. LECOMTE, P. LECOQ, P. LECOULTRE, D. M. LEE, J. S. LEE, K. Y. LEE, I. LEEDOM, C. LEGGETT, J. M. LEGOFF, R. LEISTE, M. LENTI, E. LEONARDI, P. 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A., Tang, X. W., Taylor, L., S. C. C., Ting, S. M., Toker, O., Tonutti, M., Tonwar, S. C., Toth, J., Tsaregorodtsev, A., Tsipolitis, G., Tully, C., Tung, K. L., Tuuva, T., Ulbgricht, J., Urban, L., Uwer, U., Valente, E., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, J. C., Wang, C. R., Wang, X. L., Wang, Y. F., Wang, Z. M., Weber, A., Weber, J., Weill, R., Wenninger, J., White, M., Willmott, C., Wittgenstein, F., Wright, D., S. X., Wu, Wynhoff, S., Wyslouch, B., Xie, Y. Y., J. G., Xu, Z. Z., Xu, Xue, Z. L., Yan, D. S., Yang, B. Z., Yang, C. G., Yang, G., C. H., Ye, J. B., Ye, 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, G. J., Zhou, J. F., Zhu, R. Y., Zichichi, A., 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), Institut de Physique Nucléaire de Lyon (IPNL), 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), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), 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), L3, and L3 (IHEF, IoP, FNWI)
Subjects: Nuclear and High Energy Physics, Particle physics, LUND MONTE-CARLO, Electron–positron annihilation, Hadron, MESON PRODUCTION, Elementary particle, Parton, 7. Clean energy, 01 natural sciences, JET FRAGMENTATION, Nuclear physics, Momentum, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], PERTURBATIVE QCD, SPECTRA, 010306 general physics, Parton shower, Nuclear Experiment, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Ciencias Exactas, L3 EXPERIMENT, Quantum chromodynamics, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, PHOTON PRODUCTION, Física, ETA-PRODUCTION, SOFT GLUONS, Mass spectrum, High Energy Physics::Experiment, E+ E ANNIHILATION, Particle Physics - Experiment
Abstract: We present a study of the inclusive production of 7r °, r I, K ° and A based on 929,000 hadronic Z decays recorded with the L3 detector at LEP. The measured inclusive momentum distributions have been compared with predictions from parton shower models as well as an analytical Quantum Chromodynamics calculation. Comparing to low energy e+e - data, we find that QCD describes the energy evolution of the hadron spectrum., Facultad de Ciencias Exactas
Published: 1994

129. K−p→π0π0Σ0atpK−=514–750MeV∕cand comparison with otherπ0π0production

Author: D. Peaslee, J. R. Comfort, I. Lopatin, M. Clajus, D. M. Manley, R. Manweiler, S. Kruglov, I. Supek, G. J. Lolos, V. Bekrenev, S. N. Prakhov, C. E. Allgower, N. Phaisangittisakul, K. Craig, W. B. Tippens, M. E. Sadler, D. D. Koetke, N. Kozlenko, A. Koulbardis, J. W. Price, N. Knecht, A. Marušić, A. Shafi, J. Olmsted, T. D. S. Stanislaus, W. J. Briscoe, S. McDonald, D. Grosnick, H. M. Staudenmaier, H. M. Spinka, D. Isenhower, A. Starostin, Z. Papandreou, B. M. K. Nefkens, and A. F. Ramirez
Subjects: Physics, Nuclear and High Energy Physics, Crystallography, Angular distribution, Mass spectrum, Pi, Hyperon, Dalitz plot, Sigma, Crystal Ball, Spectral line
Abstract: Reaction K{sup -}p{yields}{pi}{sup 0}{pi}{sup 0}{sigma}{sup 0} was measured with the Crystal Ball multiphoton spectrometer at eight K{sup -} momenta from 514 to 750 MeV/c. Dynamics and the energy dependence of the reaction are shown by Dalitz plots, invariant mass spectra, production angular distributions, and total cross sections. The dipion invariant-mass spectra for K{sup -}p{yields}{pi}{sup 0}{pi}{sup 0}{sigma}{sup 0} show an enhancement in the low mass region; the opposite is the case for the K{sup -}p{yields}{pi}{sup 0}{pi}{sup 0}{lambda} and {pi}{sup -}p{yields}{pi}{sup 0}{pi}{sup 0}n reactions. There is no direct evidence for a f{sub 0}(600)-meson contribution to {pi}{sup 0}{pi}{sup 0} production. Everywhere {sigma}{sub t}(K{sup -}p{yields}{pi}{sup 0}{pi}{sup 0}{sigma}{sup 0})<
Published: 2004

130. Measurement ofπ−p→π0π0nfrom threshold topπ−=750MeV∕c

Author: D. Grosnick, V. Bekrenev, D. Isenhower, W. B. Tippens, Z. Papandreou, C. E. Allgower, M. Clajus, B. M. K. Nefkens, I. Supek, S. P. Kruglov, A. Marusic, N. S. Knecht, G. J. Lolos, S. N. Prakhov, N. G. Kozlenko, H. M. Spinka, J. Olmsted, I. V. Lopatin, D. M. Manley, A. F. Ramirez, W. J. Briscoe, D. D. Koetke, J. R. Comfort, H. M. Staudenmaier, S. McDonald, N. Phaisangittisakul, K. Craig, A. Shafi, A. Koulbardis, J. W. Price, M. E. Sadler, T. D. S. Stanislaus, R. Manweiler, D. Peaslee, and A. Starostin
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Angular distribution, Mass spectrum, Dalitz plot, Crystal Ball
Published: 2004

131. Measurement of pi^-p -> pi^0pi^0 n from threshold to p_pi^- = 750 MeV/c

Author: Prakhov, S., Nefkens, B.M.K., Allgower, C.E., Bekrenev, V., Briscoe, W.J., Clajus, M., Comfort, J.R., Craig, K., Grosnick, D., Isenhower, D., Knecht, N., Koetke, D., Koulbardis, A., Kozlenko, N., Kruglov, S., Lolos, G., Lopatin, I., Manley, D.M., Manweiler, R., Marusic, A., McDonald, S., Olmsted, J., Papandreou, Z., Peaslee, D., Phaisangittisakul, N., Price, J.W., Ramirez, A.F., Sadler, M., Shafi, A., Spinka, H., Stanislaus, T.D.S., Starostin, A., Staudenmaier, H.M., Supek, Ivan, and Tippens, W.B.
Subjects: total cross sections, invariant-mass spectra, Roper resonance, Nuclear Experiment
Abstract: Reaction pi^- p pi^0pi^0n has been measured with high statistics in the beam momentum range 270 - 750 MeV/c. The data were obtained using the Crystal Ball multiphoton spectrometer, which has 93% of 4pi solid angle coverage. The dynamics of the pi^- p pi^0pi^0n reaction and the dependence on the beam energy are displayed in total cross sections, Dalitz plots, invariant-mass spectra, and production angular distributions. Special attention is paid to the evaluation of the acceptance that is needed for the precision determination of the total cross section sigma_t(pi^- p pi^0pi^0n). The energy dependence of sigma_t(pi- p pi^0pi^0n) shows a shoulder at the Roper resonance [i.e., the N(1440)1/2^+], and there is also a maximum near the N(1520)3/2-. It illustrates the importance of these two resonances to the pi^0pi^0 production process. The Dalitz plots are highly nonuniform ; they indicate that the pi^0pi^0n final state is dominantly produced via the pi^0Delta^0(1232) intermediate state. The invariant-mass spectra differ much from the phase-space distributions. The production angular distributions are also different from the isotropic distribution, and their structure depends on the beam energy. For beam momenta above 550 MeV/c, the density distribution in the Dalitz plots strongly depends on the angle of the outgoing dipion system (or equivalently on the neutron angle). The role of the f_0(600) meson (also known as the sigma) in pi^0pi^0n production remains controversial.
Published: 2004

132. K^-p -> pi^0 Pi^0 Sigma^0 at p_(K)^- = 514 MeV/c to 750 MeV/c and comparison with other pi^0 pi^0 production

Author: Prakhov, S., Nefkens, B.M.K., Allgower, C.E., Bekrenev, V., Briscoe, W.J., Clajus, M., Comfort, J.R., Craig, K., Grosnick, D., Isenhower, D., Knecht, N., Koetke, D., Koulbardis, A., Kozlenko, N., Kruglov, S., Lolos, G., Lopatin, I., Manley, D.M., Manweiler, R., Marusic, A., McDonald, S., Olmsted, J., Papandreou, Z., Peaslee, D., Phaisangittisakul, N., Price, J.W., Ramirez, A.F., Sadler, M., Shafi, A., Spinka, H., Stanislaus, T.D.S., Starostin, A., Staudenmaier, H.M., Supek, Ivan, and Tippens, W.B.
Subjects: Lambda, total cross sections, invariant-mass spectra, dynamical flavor symmetry, kaon
Abstract: Reaction K^- p --> pi^0 pi^0 Sigma^0 was measured with the Crystal Ball multiphoton spectrometer at eight K^- momenta from 514 to 750 MeV/c. Dynamics and the energy dependence of the reaction are shown by Dalitz plots, invariant mass spectra, production angular distributions, and total cross sections. The dipion invariant-mass spectra for K^- p --> pi^0 pi^0 Sigma^0 show an enhancement in the low mass region ; the opposite is the case for the K^- p --> pi^0 pi^0 Lambda and pi- p --> pi^0 pi^0 n reactions. There is no direct evidence for a f_0(600)-meson contribution to pi^0pi^0 production. Everywhere sigma_t(K^- p --> pi^0 pi^0 Sigma^0)< pi^0 pi^0 Lambda).
Published: 2004

133. Does the Sigma(1580)3/2^- resonance exist?

Author: Olmsted, J., Prakhov, S., Nefkens, B.M.K., Allgower, C.E., Bekrenev, V., Briscoe, W.J., Clajus, M., Comfort, J.R., Craig, K., Grosnick, D., Isenhower, D., Knecht, N., Koetke, D., Kozlenko, N., Kruglov, S., Koulbardis, A., Lolos, G., Lopatin, I., Manweiler, R., Marusic, A., McDonald, S., Papandreou, Z., Peaslee, D., Phaisangittisakul, N., Price, J.W., Ramirez, A.F., Sadler, M., Shafi, A., Spinka, H., Stanislaus, T.D.S., Starostin, A., Staudenmaier, H.M., Supek, Ivan, and Tippens, W.B.
Subjects: Lambda, Sigma, exotic baryon
Abstract: Precise new data for the reaction K-p->pi^0 Lambda are presented in the c.m. energy range 1565 to 1600 MeV. Our analysis of these data sheds new light on claims for the Sigma(1580) 3/2^- resonance, which (if it exists with the specified quantum numbers) must be an exotic baryon because of its very low mass. Our results show no evidence for this state.
Published: 2004

134. Reaction K^-p -> pi^0pi^0 Lambda from p_K- = 514 to 750-MeV/c

Author: Prakhov, S., Nefkens, B.M.K., Allgower, C.E., Bekrenev, V., Briscoe, W.J., Clajus, M., Comfort, J.R., Craig, K., Grosnick, D., Isenhower, D., Knecht, N., Koetke, D., Koulbardis, A., Kozlenko, N., Kruglov, S., Lolos, G., Lopatin, I., Manley, D.M., Manweiler, R., Marusic, A., McDonald, S., Olmsted, J., Papandreou, Z., Peaslee, D., Phaisangittisakul, N., Price, J.W., Ramirez, A.F., Sadler, M., Shafi, A., Spinka, H., Stanislaus, T.D.S., Starostin, A., Staudenmaier, H.M., Supek, Ivan, and Tippens, W.B.
Subjects: Crystal Ball
Abstract: Reaction K^-p -> pi^0pi^0 Lambda was measured at eight incident K- momenta between 514 and 750 MeV/c using the Crystal Ball multiphoton spectrometer. The reaction dynamics are displayed in total cross sections, Dalitz plots, invariant-mass spectra, production angular distributions, and the L polarization. The pi^0pi^0Lambda production is dominated by the pi^0Sigma^0(1385) intermediate state ; no trace of other light Sigma^* states is observed, and the role of the f_0(600) meson appears to be insignificant. A striking similarity is seen between K^-p -> pi^0pi^0 Lambda and pi^-p-> pi^0pi^0n ; this can be understood as a consequence of dynamical flavor symmetry.
Published: 2004

135. Y-scaling in quasifree pion-single-charge exchange

Author: Peterson, R.J., Allgower, C.E., Bekrenev, V., Briscoe, W.J., Comfort, J.R., Craig, K., Grosnick, D., Isenhower, D., Knecht, N., Koetke, D., Koulbardis, A., Lolos, G., Lopatin, I., Manley, D.M., Manweiler, R., Marusic, A., McDonald, S., Nefkens, B.M.K., Olmsted, J., Papandreou, Z., Peaslee, D., Phaisangittisakul, N., Price, J.W., Prull, D.E., Ramirez, A.F., Sadler, M., Shafi, A., Spinka, H., Stanislaus, T.D.S., Starostin, A., Staudenmaier, H.M., Supek, Ivan, and Tippens, W.B.
Subjects: pion-single-charge exchange, angular dependence, isovector responses, Nuclear Theory, Nuclear Experiment
Abstract: Data for pion-single-charge exchange reactions at 750 MeV/c on complex nuclei are analyzed for y-scaling, or single scattering quasifree, responses. The angular dependence of the data is used to separate the spin and nonspin isovector responses, with comparisons to electron scattering results.
Published: 2004

136. Highlights from the Crystal Ball program at the AGS

Author: Nefkens, B.M.K., Prakhov, S., Price, J.W., Starostin, A., Allgower, C.E., Bekrenev, V., Briscoe, W.J., Clajus, M., Comfort, J.R., Craig, K., Grosnick, D., Isenhower, D., Knecht, N., Koetke, D., Koulbardis, A., Kozlenko, N., Kruglov, S., Lolos, G., Lopatin, I., Manley, D.M., Manweiler, R., Marušić, Aljoša, McDonald, S., Olmsted, J., Papandreou, Z., Peaslee, D., Phaisangittisakul, N., Ramirez, A.F., Sadler, M., Shafi, A., Spinka, H., Stanislaus, T.D.S., Staudenmaier, H.M., Supek, Ivan, and Tippens, W.B.
Subjects: pi^- and K^- induced relations, eta-meson decay, 2pi^0 production, High Energy Physics::Experiment, Nuclear Experiment
Abstract: Results are presented for pi- and K- -induced reactions on a proton target leading to all-enutral final states. also shown are new data on rare and forbidden eta-emson decays. The detector is the Crystal Ball multi-photon spectrometer, which until recently was located in the C-6 secondary beam line at the AGS. Special emphasis is given to 2pi0 production.
Published: 2004

137. DETERMINATION OF QUARK ELECTROWEAK COUPLINGS FROM DIRECT PHOTON PRODUCTION IN HADRONIC Z-DECAYS

Author: D. Antreasyan, J. Mnich, Raffaello D'Alessandro, C. Grinnell, R. Leiste, Qi An, Ren-Yuan Zhu, Leonardo Merola, C. Neyer, A. Rubbia, T. Foreman, Dong-Chul Son, T. Kramer, J. J. Blaising, P. G. Rancoita, B. Monteleoni, T. Azemoon, H. Janssen, K.S. Yang, D. Linnhofer, B. N. Jin, F. Sticozzi, Mariagrazia Alviggi, C. Spartiotis, H. Nowak, Federico Carminati, P. Kapinos, Q.Y. Yang, A. Gurtu, Els Koffeman, I. Vetlitsky, H. J. Schreiber, T. Paul, H. Anderhub, P. Duinker, R. Morand, J. M. Salicio, Z. L. Xue, Marcos Cerrada, Y. J. Pei, G. M. Bilei, Peter Denes, A. Klimentov, Axel König, S. C. Tonwar, Frank Filthaut, Thomas Ferguson, W. Wallraff, Howard A. Stone, S. Easo, R. Mount, E. Brambilla, A. A. Syed, Marco Meschini, S. Banerjee, A. Hasan, Zp Zhang, D. Kirkby, Francesca Nessi-Tedaldi, Kenneth Francis Read, X. R. Shi, Felicitas Pauss, Y. D. Xu, L. Z. Sun, V. Plyaskin, S. Pensotti, Valery Schegelsky, D.N. Mao, M. Wadhwa, J. D. Burger, Christopher George Tully, Adrian Biland, M. T. Dova, D. Hauschildt, Wolfgang Lohmann, S. Rosier-Lees, H. Vogt, B. Bertucci, Ph Fisher, Roberto Battiston, H. Rykaczewski, Giovanni Organtini, S. Patricelli, S. C. Kim, Q. Ye, P. Le Coultre, H. O. Cohn, M. Boccioloni, Z. F. Gong, Nicanor Colino, G. Rahal-Callot, Wen-Gan Ma, P. Zemp, R. de Asmundis, D.W. Schmitz, G.G.G. Massaro, S. J. Fan, Claudio Luci, Y. Karyotakis, B.C. Stringfellow, S. X. Wu, K. Hangarter, A. Kasser, Robert Clare, Gerjan Bobbink, B. Borgia, J. Ulbricht, Pierluigi Paolucci, M. Gailloud, W. Kittel, X. T. Cui, A. Nippe, Yu. Galaktionov, S. Chung, J. Alcaraz, G. Schwering, U. K. Chaturvedi, Alberto Aloisio, R.B. Sutton, Ph. Rosselet, Thomas Hebbeker, Guofan Hu, D. DiBitonto, J. K. Kim, R. Starosta, D. Luckey, M. Vivargent, M. Sachwitz, Gy L. Bencze, J.A. Bakken, M. Steuer, G. Forconi, M. Yzerman, F. Crijns, S. S. Gau, T. J. Wenaus, K. Schultze, A. Ricker, Y. S. Lu, A. Malinin, P.V.K.S. Baba, J. Weber, Paul Lecoq, R. W. Kraemer, M. Napolitano, E. Soderstrom, H. S. Chen, L. Servoli, Attilio Santocchia, Jean Fay, M. Dhina, D. Boutigny, Z. Y. Lin, H. L. Zhuang, H. Suter, Reinhard W. Schulte, F. C. Erné, R.J. Wu, Roberto Castello, D. Perret-Gallix, Jérôme Rose, U. Herten, Egidio Longo, J. H. Field, C. Y. Chien, C. Li, Elemer Nagy, A. Engler, J. C. Sens, H. S. Fesefeldt, M. Fabre, M. Schneegans, D. M. Lee, J. Bao, M. M. Ilyas, X. W. Tang, I. Sheer, P. A. Piroué, W. Y. Chen, B. Zhou, L. Antonov, J.H. Wang, Zhongyukun Xu, P. K. Malhotra, H. A. Rizvi, A. Kunin, R. Barillère, Steven Ahlen, I. Clare, J. Busenitz, W. Friebel, G. Landi, M. L. Brooks, B. C.C. van der Zwaan, Simone Paoletti, D. Lanske, G. Terzi, Stefan Kirsch, Hafeez R Hoorani, Cheng Chen, Samuel C.C. Ting, W. J. Burger, C. Zaccardelli, W. W. Kinnison, S. C. Yeh, L. Romero, Tariq Aziz, J. Behrens, D. Duchesneau, P. J. Li, M. Bosetti, R.L. Sumner, T. E. Coan, J. G. Branson, P. Göttlicher, D. Z. Shen, P. Lebrun, Manjit Kaur, C. Dionisi, W. J. Metzger, T. Angelov, F. J. Rodriguez, M. Sassowsky, H. R. Gustafson, G. Passaleva, Daqiang Zhang, N. Yunus, Jun Guo, P. Vikas, B. Lindemann, G. Finocchiaro, Marcel Merk, G. Tsipolitis, BT Bouwens, Wt Lin, S. Röhner, F. Wittgenstein, J. Perrier, H. Kuijten, L. Barone, D. Gele, M. N. Kienzle-Focacci, R. Rosmalen, H. El Mamouni, M. MacDermott, Jianming Qian, G. Hu, O. Rind, F. L. Linde, G. Gratta, M. A. Niaz, M. Bourquin, K. Strauch, Y. G. Kim, X. L. Wang, A. Tsaregorodtsev, P. Arce, D. Goujon, U. Uwer, Crisostomo Sciacca, Marco Pieri, A. Arefiev, Giovanni Ambrosi, A. Chen, M. Möller, J. Salicio, Davide Piccolo, Z. W. Yin, Dimitri Bourilkov, L. Ludovici, M. Chmeissani, J. M. Ma, K. Sudhakar, An.A. Vorobyov, T. Matsuda, Bolek Wyslouch, P. Extermann, Georgi Sultanov, Carlos Willmott, Y. H. Chang, I. Leedom, B. Z. Yang, H. Hofer, N. E. Moulai, Chenjie Gu, C. F. He, H. F. Chen, Helmut Vogel, Vincenzo Innocente, E. Fiandrini, George Alverson, T. S. Dai, R. A. Khan, A. Degré, K. L. Tung, P. Bagnaia, K. Riles, Speranza Falciano, K. N. Qureshi, S. Goldfarb, A. Pevsner, A. Sopczak, A. Gougas, O. Adriani, G. Sauvage, G. Coignet, W. Krenz, V. P. Andreev, M. Chemarin, E. Drago, H. T. Li, Lucas Taylor, J. S. Kapustinsky, Harvey B Newman, G. M. Chen, M. Rattaggi, G. Chiefari, S. Shevchenko, F. Behner, K. Hilgers, R. Weill, Andrea Baschirotto, L. J. Gutay, Kajari Mazumdar, S. Khokhar, T.R. McMahon, X. J. Yan, S. Müller, R. Malik, K. Deiters, Yu. Kamyshkov, A. L. Anderson, J. M. Lubbers, J. B. Ye, F. Marion, A. Marin, Mw Gruenewald, T. Driever, Ying Wu, G. B. Mills, J. F. Zhou, C. G. Yang, N. Scholz, P. Schmitz, Zhuoxiang Ren, D. J. Schotanus, U. Becker, J. M. You, N. Produit, V. R. Krastev, M. Rescigno, G. A. Yang, B. P. Roe, I. Duran, K. Freudenreich, Xd Cai, Y. Mi, Gerard Fernandez, A. Bujak, Oliver Kornadt, M. Pohl, C. Maña, I. C. Brock, M. Caria, F. Ferroni, F. J. Eppling, L. W. Jones, D. S. Yan, Y. Zeng, Jozsef Toth, J. Lettry, H. R. Dimitrov, O. Fackler, A. Koulbardis, L. Urbán, M. Fukushima, S. M. Ting, M. Lenti, A. Nadtochy, S. Schulte, Elisabetta Gallo, V. Koutsenko, J. M. Le Goff, D. H. Wright, Chenliang Wang, G. S. Sanders, P. G. Seiler, J. A. Rubio, F. Cesaroni, Pablo Garcia-Abia, Alain Hervé, D. P. Stickland, J. Y. Liao, S. Reucroft, S. Shotkin, Emilio Leonardi, A. Bay, Y. Mir, C. H. Ye, R. Bock, Carlo Civinini, M. Maolinbay, G. Raven, X.G. Li, M. Aguilar-Benitez, R. Bizzarri, Herwig Schopper, M. White, E. Dénes, R. Sehgal, M.T. Choi, Yuehong Xie, Christine Buisson, Y. F. Wang, P. Marchesini, Z. M. Wang, Ming Zeng, Maurizio Biasini, M. Röhner, Marta Felcini, Y.F. Mao, Francesco Becattini, M. Capell, R. T. Van de Walle, I. Scott, S. N. Ganguli, M. S. Sarakinos, A. Zichichi, E. Gonzalez, M.L. Chen, S. Lanzano, Marcella Diemoz, V. K. Gupta, E. Valente, Gianpaolo Carlino, F. DeNotaristefani, D. McNally, P. Berges, X. Leytens, G. Viertel, S. Morganti, J. Schwenke, X. Y. Cui, L. Martinez-Laso, A. Atamanchuk, Lamberto Luminari, R. C. Ball, Pierre Lecomte, G. Sartorelli, Werner Lustermann, Charles Timmermans, D. Pandoulas, T. Spickermann, Bernard Ille, Jwu E. Chen, J. D. Swain, P. McBride, A. Böhm, A. C. Weber, G. Mirabelli, K. Lübelsmeyer, Piero Spillantini, F. Plasil, Mingshui Chen, M. Pauluzzi, D. Ren, J. Shukla, U. Vikas, A. Contin, Igor Vorobiev, M. Hebert, Panos A Razis, A. M. Cartacci, F. Marzano, R. Raghavan, Stéphane Jézéquel, Simonetta Gentile, Laurent Vuilleumier, J. Berdugo, Z.Q. Yang, M. Guanziroli, J. P. Martin, L. Baksay, E. Shumilov, V. Shoutko, B. C. Riemers, K. S. Kumar, M. Tonutti, G. H. Wang, J. Wenninger, V. Pojidaev, R. Fabbretti, Luca Lista, D. Fernandez, Yanwen Liu, Sabine Riemann, A. Krivshich, B. L. Betev, S. Beingessner, IHEF (IoP, FNWI), 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), Institut de Physique Nucléaire de Lyon (IPNL), 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), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), 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), L3, Adriani, O., Aguilar-Benitez, M., Ahlen, S., Alcaraz, J., Aloisio, A., Alverson, G., Alviggi, M. G., Ambrosi, G., An, Q., Anderhub, H., Anderson, A. L., Andreev, V. P., Angelov, T., Antonov, L., Antreasyan, D., Arce, P., Arefiev, A., Atamanchuk, A., Azemoon, T., Aziz, T., Baba, P. V. K. S., Bagnaia, P., Bakken, J. A., Baksay, L., Ball, R. C., Banerjee, S., Bao, J., Barillère, R., Barone, L., Baschirotto, A., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Behrens, J., Beingessner, S., Bencze, Gy. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Bizzarri, R., Blaising, J. J., Bobbink, G. J., Boccioloni, M., Bock, R., Böhm, A., Borgia, B., Bosetti, M., Bourilkov, D., Bourquin, M., Boutigny, D., Bouwens, B., Brambilla, E., Branson, J. G., Brock, I. C., Brooks, M., Buisson, C., Bujak, A., Burger, J. D., Burger, W. J., Busenitz, J., Cai, X. D., Capell, M., Caria, M., Carlino, G., Carminati, F., Cartacci, A. M., Castello, R., Cerrada, M., Cesaroni, F., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, C., Chen, G. M., Chen, H. F., Chen, H. S., Chen, J., Chen, M., Chen, M. L., Chen, W. Y., Chiefari, G., Chien, C. Y., Chmeissani, M., Choi, M. T., Chung, S., Civinini, C., Clare, I., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colino, N., Contin, A., Crijns, F., Cui, X. T., Cui, X. Y., Dai, T. S., D'Alessandro, R., de Asmundis, R., Degré, A., Deiters, K., Dénes, E., Denes, P., Denotaristefani, F., Dhina, M., Dibitonto, D., Diemoz, M., Dimitrov, H. R., Dionisi, C., Dova, M. T., Drago, E., Driever, T., Duchesneau, D., Duinker, P., Duran, I., Easo, S., El Mamouni, H., Engler, A., Eppling, F. J., Erné, F. C., Extermann, P., Fabbretti, R., Fabre, M., Falciano, S., Fan, S. J., Fackler, O., Fay, J., Felcini, M., Ferguson, T., Fernandez, D., Fernandez, G., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J., Filthaut, F., Finocchiaro, G., Fisher, P. H., Forconi, G., Foreman, T., Freudenreich, K., Friebel, W., Fukushima, M., Gailloud, M., Galaktionov, Yu., Gallo, E., Ganguli, S. N., Garcia-Abia, P., Gau, S. S., Gele, D., Gentile, S., Goldfarb, S., Gong, Z. F., Gonzalez, E., Göttlicher, P., Gougas, A., Goujon, D., Gratta, G., Grinnell, C., Gruenewald, M., Gu, C., Guanziroli, M., Guo, J. K., Gupta, V. K., Gurtu, A., Gustafson, H. R., Gutay, L. J., Hangarter, K., Hasan, A., Hauschildt, D., He, C. F., Hebbeker, T., Hebert, M., Herten, U., Hervé, A., Hilgers, K., Hofer, H., Hoorani, H., Hu, G., Hu, G. Q., Ille, B., Ilyas, M. M., Innocente, V., Janssen, H., Jezequel, S., Jin, B. N., Jones, L. W., Kasser, A., Khan, R. A., Kamyshkov, Yu., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Khokhar, S., Kienzle-Focacci, M. N., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, D., Kirsch, S., Kittel, W., Klimentov, A., König, A. C., Koffeman, E., Kornadt, O., Koutsenko, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krastev, V. R., Krenz, W., Krivshich, A., Kuijten, H., Kumar, K. S., Kunin, A., Landi, G., Lanske, D., Lanzano, S., Lebrun, P., Lecomte, P., Lecoq, P., Le Coultre, P., Lee, D. M., Leedom, I., Le Goff, J. M., Leiste, R., Lenti, M., Leonardi, E., Lettry, J., Leytens, X., Li, C., Li, H. T., Li, P. J., Li, X. G., Liao, J. Y., Lin, W. T., Lin, Z. Y., Linde, F. L., Lindemann, B., Linnhofer, D., Lista, L., Liu, Y., Lohmann, W., Longo, E., Lu, Y. S., Lubbers, J. M., Lübelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., Ma, J. M., Ma, W. G., Macdermott, M., Malhotra, P. K., Malik, R., Malinin, A., Maña, C., Mao, D. N., Mao, Y. F., Maolinbay, M., Marchesini, P., Marion, F., Marin, A., Martin, J. P., Martinez-Laso, L., Marzano, F., Massaro, G. G. G., Matsuda, T., Mazumdar, K., Mcbride, P., Mcmahon, T., Mcnally, D., Merk, M., Merola, L., Meschini, M., Metzger, W. J., Mi, Y., Mills, G. B., Mir, Y., Mirabelli, G., Mnich, J., Möller, M., Monteleoni, B., Morand, R., Morganti, S., Moulai, N. E., Mount, R., Müller, S., Nadtochy, A., Nagy, E., Napolitano, M., Nessi-Tedaldi, F., Newman, H., Neyer, C., Niaz, M. A., Nippe, A., Nowak, H., Organtini, G., Pandoulas, D., Paoletti, S., Paolucci, P., Passaleva, G., Patricelli, S., Paul, T., Pauluzzi, M., Pauss, F., Pei, Y. J., Pensotti, S., Perret-Gallix, D., Perrier, J., Pevsner, A., Piccolo, D., Pieri, M., Piroué, P. A., Plasil, F., Plyaskin, V., Pohl, M., Pojidaev, V., Produit, N., Qian, J. M., Qureshi, K. N., Raghavan, R., Rahal-Callot, G., Rancoita, P. G., Rattaggi, M., Raven, G., Razis, P., Read, K., Ren, D., Ren, Z., Rescigno, M., Reucroft, S., Ricker, A., Riemann, S., Riemers, B. C., Riles, K., Rind, O., Rizvi, H. A., Rodriguez, F. J., Roe, B. P., Röhner, M., Röhner, S., Romero, L., Rose, J., Rosier-Lees, S., Rosmalen, R., Rosselet, Ph., Rubbia, A., Rubio, J. A., Rykaczewski, H., Sachwitz, M., Salicio, J., Salicio, J. M., Sanders, G. S., Santocchia, A., Sarakinos, M. S., Sartorelli, G., Sassowsky, M., Sauvage, G., Schegelsky, V., Schmitz, D., Schmitz, P., Schneegans, M., Scholz, N., Schopper, H., Schotanus, D. J., Schreiber, H. J., Schulte, R., Schulte, S., Schultze, K., Schwenke, J., Schwering, G., Sciacca, C., Scott, I., Sehgal, R., Seiler, P. G., Sens, J. C., Servoli, L., Sheer, I., Shen, D. Z., Shevchenko, S., Shi, X. R., Shotkin, S., Shukla, J., Shumilov, E., Shoutko, V., Soderstrom, E., Son, D., Sopczak, A., Spartiotis, C., Spickermann, T., Spillantini, P., Starosta, R., Steuer, M., Stickland, D. P., Sticozzi, F., Stone, H., Strauch, K., Stringfellow, B. C., Sudhakar, K., Sultanov, G., Sumner, R. L., Sun, L. Z., Suter, H., Sutton, R. B., Swain, J. D., Syed, A. A., Tang, X. W., Taylor, L., Terzi, G., Timmermans, C., Ting, Samuel C. C., Ting, S. M., Tonutti, M., Tonwar, S. C., Tóth, J., Tsaregorodtsev, A., Tsipolitis, G., Tully, C., Tung, K. L., Ulbricht, J., Urbán, L., Uwer, U., Valente, E., Van de Walle, R. T., Vetlitsky, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., 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, R. J., Wu, S. X., Wu, Y. G., Wysłouch, B., Xie, Y. Y., Xu, Y. D., Xu, Z. Z., Xue, Z. L., Yan, D. S., Yan, X. J., Yang, B. Z., Yang, C. G., Yang, G., Yang, K. S., Yang, Q. Y., Yang, Z. Q., 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, J. F., Zhu, R. Y., Zhuang, H. L., Zichichi, A., and van der Zwaan, B. C. C.
Subjects: Physics, Quark, Particle physics, Nuclear and High Energy Physics, Photon, 010308 nuclear & particles physics, Hadron, Electroweak interaction, Mathematics::History and Overview, High Energy Physics::Phenomenology, 01 natural sciences, Standard Model, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Production (computer science), High Energy Physics::Experiment, 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Particle Physics - Experiment
Abstract: We report on a comparison of isolated hard photon production in hadronic Z decays with the predictions of a next-to-leading order matrix-element calculation. We constrain the quark electroweak couplings to the Z boson with a simultaneous fit to three direct photon distributions, and combine this result with an independent constraint from our measurement of the total hadronic width of the Z, obtaining cu = 0.92 ± 0.22 and cd = 1.63 ± 0.15 where c u,d = 4( g V 2 + g A 2 ) u,d . Our results are consistent with standard model predictions.
Published: 1993

138. Search for Lepton Flavor Violation in Z-Decays

Author: Egidio Longo, G. J. Bobbink, Dimitri Bourilkov, Roberto Battiston, A. A. Syed, Y. J. Pei, J. Alcaraz, B. Ille, E. Fiandrini, B. Borgia, Z. Y. Lin, M. Rescigno, L. Urbán, A. Krivshich, S. Schulte, S. Khokhar, H. Anderhub, A. Sopczak, B. N. Jin, F. Wittgenstein, J. Ulbricht, Konrad Deiters, Z. D. Qi, W. Y. Chen, C. Dionisi, J. M. Le Goff, Pablo Garcia-Abia, W. Friebel, M. Yzerman, C. Willmott, W. J. Burger, G. Forconi, Alberto Aloisio, A. Ricker, M. A. Niaz, Y. G. Kim, Maurizio Biasini, H. Kuijten, Harvey B Newman, D. P. Stickland, K. Hilgers, J. S. Kapustinsky, C. Chen, R. Becker, K. L. Tung, Jun Guo, B. Lindemann, D. H. Zhang, F. Sticozzi, C. Zaccardelli, Marcel Merk, Pierluigi Paolucci, Alain Hervé, A. Lebedev, Dong-Chul Son, Marta Felcini, George Alverson, J. C. Sens, G. Yang, P. V.K.S. Baba, A. Bay, J. D. Burger, Wt Lin, X. D. Cai, C. Li, A. Kasser, Guofan Hu, J. Busenitz, J. A. Bakken, M. Sassowsky, L. Antonov, O. Fackler, J. J. Blaising, W. W. Kinnison, S. C. Yeh, J. Perrier, Stefano Giagu, Carlo Civinini, M. N. Kienzle-Focacci, D. Perret-Galliz, R. Rosmalen, M. Maolinbay, G. Raven, L. Djambazov, B. L. Betev, C. R. Wang, D. Duchesneau, I. Sheer, S. Reucroft, P. A. Piroué, M. Gailloud, T. Paul, M. Bourquin, Y. F. Wang, N. Yunus, Francesco Becattini, M. Brooks, M. Vivargent, M. Sachwitz, K. Strauch, M. Aguilar-Benitez, C. Gu, S. Easo, B. C.C. van der Zwaan, Maria-Teresa Dova, Raffaello D'Alessandro, Yu. Galaktionov, N. Zaitsev, A. Kunin, G. Gratta, Herwig Schopper, B. Zhou, D. Z. Shen, J. G. Xu, A. Tsaregorodtsev, C. Neyer, M. Bosetti, P. G. Rancoita, H. Postema, R. Leiste, T. J. Wenaus, F. Ferroni, Leonardo Merola, V. Plyaskin, Christoph Paus, Y. Zeng, E. Dénes, K. Y. Lee, P. Zemp, T. Azemoon, S. Chung, I. Vetlitsky, W. van Rossum, J. G. Branson, Marco Meschini, M. Wadhwa, D. J. Schotanus, G. S. Sanders, R. Klöckner, D. Kirkby, R. de Asmundis, L. Ludovici, Stefan Roth, Marcos Cerrada, H. Nowak, Adrian Biland, E. Drago, R. Morand, G. Fernandez, C. Spartiotis, A.M. Cartacci, V. R. Krastev, G. Landi, H.R. Dimitrov, G. Terzi, R. Raghavan, A. C. König, D. Antreasyan, H. T. Li, U. K. Chaturvedi, W. J. Metzger, Francesca Nessi-Tedaldi, A. Nadtochy, U. Becker, J. S. Lee, J. Tóth, K. N. Qureshi, J. Mnich, C. Maña, S. J. Fan, X. W. Tang, G. Rahal-Callot, C. Wang, M. Guanziroli, M. Möller, Fj Eppling, Davide Piccolo, P. Kapinos, P. Duinker, R. Mount, Q. An, J. A. Rubio, I. Duran, Simonetta Gentile, H. O. Cohn, A. L. Anderson, Howard A. Stone, T.S. Dai, P. Schmitz, A. Klimentov, Roberto Castello, C. Warner, G. J. Zhou, L. W. Jones, Y. S. Lu, A. Buytenhuijs, S. Goldfarb, M. Schneegans, A. Bujak, A. Engler, Z. L. Ren, M. Capell, A. Degré, K. Schultze, W. Wallraff, P. H. Fisher, C. G. Yang, Kenneth Francis Read, K. Freudenreich, H. Suter, D. Fernandez, J. Berdugo, J. T. He, H. S. Chen, X. T. Cui, H. S. Fesefeldt, E. Nagy, Christopher George Tully, J. P. Martin, D. Lanske, J. Bechtluft, Ingrid U. Scott, Z. Z. Xu, F. L. Linde, G. Chiefari, D. Hauschildt, S. Shevchenko, V. Pojidaev, Q. Ye, Jorg Wenninger, S. Banerjee, Z. F. Gong, K. Sudhakar, O. Rind, S. M. Ting, Hafeez R. Hoorani, G. B. Mills, D. Goujon, J. M. Ma, S. Pensotti, Valery Schegelsky, Antonino Zichichi, P. Razis, F. Behner, A. Pevsner, A. Rubbia, S. Ahlen, Andrea Baschirotto, L. Martinez-Laso, G. Chen, I. C. Brock, X. Y. Cui, Y. Y. Xie, G. Sauvage, P. Lebrun, W. Kittel, Georgi Sultanov, J. M. Lubbers, L. Z. Sun, R. Fabbretti, Z. L. Xue, J. B. Ye, Tariq Aziz, Jianming Qian, G. Hu, M. Rattaggi, S. Wynhoff, E. Shumilov, X. L. Wang, G. M. Chen, D. H. Wright, N. Gheordanescu, G. M. Bilei, V. P. Andreev, D. Gele, V. Shoutko, A. Nippe, B. C. Riemers, H. Rykaczewski, Giovanni Organtini, Andrea Contin, M. Chemarin, T. E. Coan, X. R. Shi, Alexander Malinin, Felicitas Pauss, P. Spillantini, Tobias Kramer, P. Vikas, S. Patricelli, Wolfgang Lohmann, Sabine Riemann, M. Fabre, S. Rosier-Lees, R. Barillère, P. Le Coultre, E. Koffeman, M. Tonutti, U. Vikas, B. Monteleoni, Georgios Tsipolitis, K. Hangarter, Igor Vorobiev, H. Vogt, B. Bertucci, L. Fredj, J. K. Kim, R. Starosta, Gy L. Bencze, W.G. Ma, Reinhard W. Schulte, M. Hebert, Y. H. Chang, Crisostomo Sciacca, Marco Pieri, B. P. Roe, J. Bao, P. G. Seiler, Y. Mir, E. Valente, S. C. Kim, Attilio Santocchia, Jean Fay, S. N. Ganguli, M. Dhina, D. McNally, N. E. Moulai, G. Viertel, H. A. Rizvi, Oliver Kornadt, M. Pohl, J. M. You, M. Caria, Nicanor Colino, V. K. Gupta, Hans J. Vogel, S. Morganti, A. Koulbardis, R. Malik, J. Schwenke, D. Pandoulas, V. Koutsenko, T. Spickermann, Michael Dittmar, Giovanni Ambrosi, Charles Leggett, A. Atamanchuk, I. Clare, S. Ro, R. Bizzarri, F. DeNotaristefani, A. Böhm, G. Coignet, D. S. Yan, Lamberto Luminari, R. Sehgal, Luciano Romero, P. Berges, R. C. Ball, Pierre Lecomte, H. R. Gustafson, Marcella Diemoz, G. Sartorelli, C. F. He, G. Schwering, Werner Lustermann, B. Wysłouch, H. Janssen, P. Arce, A. C. Weber, S. C. Tonwar, Kajari Mazumdar, F. Plasil, G. F. Susinno, T.R. McMahon, S. Müller, E. Gonzalez, Frank Filthaut, G. Mirabelli, H.F. Chen, Patricia McBride, J. M. Salicio, M. Pauluzzi, H. El Mamouni, B. C. Stringfellow, Thomas Ferguson, Samuel C.C. Ting, F. Cesaroni, M. Zeng, J. Y. Liao, G. Passaleva, M. W. Gruenewald, I. Josa-Mutuberria, P. Marchesini, M. M. Ilyas, K. Lübelsmeyer, V. Soulimov, J. F. Zhou, M. MacDermott, Emilio Leonardi, A. Marin, P. Extermann, D. M. Lee, B. Z. Yang, H. Hofer, Yueh-Feng Liu, R. Bock, L. Gutay, M. S. Sarakinos, R. A. Khan, R. Weill, M. Röhner, D. Ren, Z. W. Yin, A. Arefiev, E. Gallo, J. Shukla, F. Cotorobai, V. Innocente, M. Lenti, G. Carlino, Zheng Wang, Y. Karyotakis, S. Lanzano, R. T. Van de Walle, M. Chen, Martin White, D. Boutigny, John Swain, K. Riles, J. Salico, Peter Denes, M. T. Choi, F. Marzano, Paolo Bagnaia, W. Krenz, Stefan Kirsch, F. J. Rodriguez, A. Gougas, Simone Paoletti, S. X. Wu, Manjit Kaur, An.A. Vorobyov, Y. Mi, D. DiBitonto, F. Marion, Ph. Rosselet, J. H. Field, C. Y. Chien, C. H. Ye, M. Steuer, A. Kirkby, O. Adriani, J. Weber, Lucas Taylor, J. Behrens, P. J. Li, D. Luckey, BT Bouwens, M. G. Alviggi, Zhiqing Zhang, F. C. Erné, U. Uwer, A. Chen, T. Angelescu, Ren-Yuan Zhu, Luciano Barone, L. Vuilleumier, D.W. Schmitz, G. Pascale, A. Gurtu, H. J. Schreiber, M. Fukushima, S. Shotkin, E. Brambilla, B. Hartmann, Yu. Kamyshkov, A. Hasan, G.G.G. Massaro, Claudio Luci, Robert Clare, S. Jezequel, Speranza Falciano, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, I. Leedom, A. Mihul, K. S. Kumar, M. Napolitano, L. Servoli, IHEF (IoP, FNWI), Flores, Sylvie, Adriani, O., Aguilarbenitez, M., Ahlen, S., Alcaraz, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., An, Q., Anderhub, H., Anderson, A. L., Andreev, V. P., Angelescu, T., Antonov, L., Antreasyan, D., Arce, P., Arefiev, A., Atamanchuk, A., Azemoon, T., Aziz, T., P. V. K., Bagnaia, P., Bakken, J. A., Ball, R. C., Banerjee, S., Bao, J., Barillere, R., Barone, L., Baschirotto, A., Battiston, R., Bay, A., Becattini, F., Bechtluft, J., Becker, R., Becker, U., Behner, F., Behrens, J., Bencze, G. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Bizzarri, R., Blaising, J. J., Bobbink, G. J., Bock, R., Bohm, A., Borgia, B., Bosetti, M., Bourilkov, D., Bourqin, M., Boutigny, D., Bouwens, B., Brambilla, E., Branson, J. G., Brock, I. C., Brooks, M., Bujak, A., Burger, J. D., Burger, W. J., Busenitz, J., Buytenhuijs, A., Cai, X. D., Capell, M., Caria, M., Carlino, G., Cartacci, A. M., Castello, R., Cerrada, M., Cesaroni, F., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, C., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chen, W. Y., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Chung, S., Civinini, C., Clare, I., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colino, N., Contin, A., Cotorobai, F., Cui, X. T., Cui, X. Y., Dai, T. S., Dalessandro, R., Deasmundis, R., Degre, A., Deiters, K., Denes, E., Denes, P., Denotaristefani, F., Dhina, M., Dibitonto, D., Diemoz, M., Dimitrov, H. R., Dionisi, C., Dittmar, M., Djambazov, L., Dova, M. T., Drago, E., Duchesneau, D., Duinker, P., Duran, J., Easo, S., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. C., Extermann, P., Fabbretti, R., Fabre, M., Falciano, S., Fan, S. J., Fackler, O., Fay, J., Felcini, M., Ferguson, T., Fernandez, D., Fernandez, G., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Forconi, G., Fredj, L., Freudenreich, K., Friebel, W., Fukushima, M., Gailloud, M., Galaktionov, Y., Gallo, E., Ganguli, S. N., Garciaabia, P., Gele, D., Gentile, S., Gheordanescu, N., Giagu, S., Goldfarb, S., Gong, Z. F., Gonzalez, E., Gougas, A., Goujon, D., Gratta, G., Gruenewald, M., Gu, C., Guanziroli, M., Guo, J. K., Gupta, V. K., Gurtu, A., Gustafson, H. R., Gutay, L. J., Hangarter, K., Hartmann, B., Hasan, A., Hauschildt, D., C. F., He, J. T., He, Hebbeker, T., Hebert, M., Herve, A., Hilgers, K., Hofer, H., Hoorani, H., Hu, G., G. Q., Hu, Ille, B., Ilyas, M. M., Innocente, V., Janssen, H., Jezequel, S., Jin, B. N., Jones, L. W., Josamutuberria, I., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Khokhar, S., Kienzlefocacci, M. N., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, A., Kirkby, D., Kirsch, S., Kittel, W., Klimentov, A., Klockner, R., Konig, A. C., Koffeman, E., Kornadt, O., Koutsenko, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krastev, V. R., Krenz, W., Krivshich, A., Kuijten, H., Kumar, K. S., Kunin, A., Landi, G., Lanske, D., Lanzano, S., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, P., Lee, D. M., Lee, J. S., Lee, K. Y., Leedom, I., Leggett, C., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Li, C., H. T., Li, P. J., Li, Liao, J. Y., Lin, W. T., Lin, Z. Y., Linde, F. L., Lindemann, B., Lista, L., Liu, Y., Lohmann, W., Longo, E., Y. S., Lu, Lubbers, J. M., Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., J. M., Ma, W. G., Ma, Macdermott, M., Malik, R., Malinin, A., Mana, C., Maolinbay, M., Marchesini, P., Marion, F., Marin, A., Martin, J. P., Martinezlaso, L., Marzano, F., G. G. G., Mazumdar, K., Mcbride, P., Mcmahon, T., Mcnally, D., Merk, M., Merola, Leonardo, Meschini, M., Metzger, W. J., Mi, Y., Mihul, A., Mills, G. B., Mir, Y., Mirabelli, G., Mnich, J., Moller, M., Monteleoni, B., Morand, R., Morganti, S., Moulai, N. E., Mount, R., Muller, S., Nadtochy, A., Nagy, E., Napolitano, Marco, Nessitedaldi, F., Newman, H., Neyer, C., Niaz, M. A., Nippe, A., Nowak, H., Ogantini, G., Pandoulas, D., Paoletti, S., Paolucci, P., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pei, Y. J., Pensotti, S., Perretgallix, D., Perrier, J., Pevsner, A., Piccolo, D., Pieri, M., Piroue, P. A., Plasil, F., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Z. D., Qi, Qian, J. M., Qureshi, K. N., Raghavan, R., Rahalcallot, G., Rancoita, P. G., Rattaggi, M., Raven, G., Razis, P., Read, K., Ren, D., Ren, Z., Rescigno, M., Reucroft, S., Ricker, A., Riemann, S., Riemers, B. C., Riles, K., Rind, O., Rizvi, H. A., Ro, S., Rodriguez, F. J., Roe, B. P., Rohner, M., Romero, L., Rosierlees, S., Rosmalen, R., Rosselet, P., Vanrossum, W., Roth, S., Rubbia, A., Rubio, J. A., Rykaczewski, H., Sachwitz, M., Salicio, J., Salicio, J. M., Sanders, G. S., Santocchia, A., Sarakinos, M. S., Sartorelli, G., Sassowsky, M., Sauvage, G., Schegelsky, V., Schmitz, D., Schmitz, P., Schneegans, M., Schopper, H., Schotanus, D. J., Shotkin, S., Schreiber, H. J., Shukla, J., Schulte, R., Schulte, S., Schultze, K., Schwenke, J., Schwering, G., Sciacca, Crisostomo, Scott, I., Sehgal, R., Seiler, P. G., Sens, J. C., Servoli, L., Sheer, I., Shen, D. Z., Shevchenko, S., Shi, X. R., Shumilov, E., Shoutko, V., Son, D., Sopczak, A., Soulimov, V., Spartiotis, C., Spickermann, T., Spillantini, P., Starosta, R., Steuer, M., Stickland, D. P., Sticozzi, F., Stone, H., Strauch, K., Stringfellow, B. C., Sudhakar, K., Sultanov, G., Sun, L. Z., Susinno, G. F., Suter, H., Swain, J. D., Syed, A. A., Tang, X. W., Taylor, L., Terzi, G., S. 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., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, C., Wang, C. R., Wang, X. L., Wang, Y. F., Wang, Z. M., Warner, C., Weber, A., Weber, J., Weill, R., Wenaus, T. J., Wenninger, J., White, M., Willmott, C., Wittgenstein, F., Wright, D., S. X., Wu, Wynhoff, S., Wyslouch, B., Xie, Y. Y., J. G., Xu, Z. Z., Xu, Xue, Z. L., Yan, D. S., Yang, B. Z., Yang, C. G., Yang, G., C. H., Ye, J. B., Ye, Ye, Q., Yeh, S. C., Yin, Z. W., You, J. M., Yunus, N., Yzerman, M., Zaccardelli, C., Zaitsev, N., Zemp, P., Zeng, M., Zeng, Y., Zhang, D. H., Zhang, Z. P., Zhou, B., Zhou, G. J., Zhou, J. F., Zhu, R. Y., Zichichi, A., 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), Institut de Physique Nucléaire de Lyon (IPNL), 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), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), 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), and L3
Subjects: Nuclear and High Energy Physics, Particle physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Electron–positron annihilation, Flavour, Z boson decays, Elementary particle, 01 natural sciences, Nuclear physics, BHABHA SCATTERING, MONTE-CARLO, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], RADIATIVE-CORRECTIONS, 010306 general physics, DETECTOR, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Ciencias Exactas, Bhabha scattering, HIGH-ENERGIES, Physics, 010308 nuclear & particles physics, Branching fraction, High Energy Physics::Phenomenology, lepton flavour violation, Física, lcsh:QC1-999, MODEL, Z(0) DECAYS, Large Electron–Positron Collider, High Energy Physics::Experiment, PHOTON CORRECTIONS, TAU, lepton pairs, Event (particle physics), Particle Physics - Experiment, lcsh:Physics, Lepton
Abstract: We have searched for lepton flavour violation in Z boson decays into lepton pairs using all data collected with the L3 detector during the 1990, 1991 and 1992 runs on an event sample corresponding to 1 500 000 2?s produced. At the 95% confidence level the upper limits on the branching ratio for Z--,etz is 0.6X 10 -s, for Z--.er this is 1.3X 10 -5 and for Z--*/zT this is 1.9X 10 -s., Facultad de Ciencias Exactas
Published: 1993

139. RESULTS FROM THE L3 EXPERIMENT AT LEP

Author: Adriani, O., Aguilar-Benitez, M., Ahlen, S., Alcaraz, J., Aloisio, A., Alverson, G., Alviggi, M.G., Ambrosi, G., An, Q., Anderhub, H., Anderson, A.L., Andreev, V.P., Antonov, L., Antreasyan, D., Arce, P., Arefev, A., Atamanchuk, A., Azemoon, T., Aziz, T., Baba, P.V.K.S., Bagnaia, P., Bakken, J.A., Baksay, L., Ball, R.C., Banerjee, S., Bao, J., Barillere, R., Barone, L., Baschirotto, A., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Behrens, J., Bencze, G.L., Berdugo, J., Berges, P., Bertucci, B., Betev, B.L., Biasini, M., Biland, A., Bilei, G.M., Bizzarri, R., Blaising, J.J., Bobbink, G.J., Bocciolini, M., Bock, R., Bohm, A., Borgia, B., Boseti, M., Bourilkov, D., Bourquin, M., Boutigny, D., Bouwens, B., Brambilla, Elizabeth, Branson, J.G., Brock, I.C., Brooks, M., Buisson, C., Bujak, A., Burger, J.D., Burger, W.J., Busenitz, J., Buytenhuijs, A., Cai, X.D., Capell, M., Caria, M., Carlino, G., Cartacci, A.M., Castello, R., Cerrada, M., Cesaroni, F., Chang, Y.H., Chaturvedi, U.K., Chemarin, M., Chen, A., Chen, C., Chen, G.M., Chen, H.F., Chen, H.S., Chen, M., Chen, W.Y., Chiefari, G., Chien, C.Y., Choi, M.T., Chung, S., Civinini, C., Clare, I., Clare, R., Coan, T.E., Cohn, H.O., Coignet, G., Colino, N., Contin, A., Cui, X.T., Cui, X.Y., Dai, T.S., D'Alessandro, R., De Asmundis, R., Degre, A., Deiters, K., Denes, Eric, Denes, P., De Notaristefani, F., Dhina, M., DiBitonto, D., Diemoz, M., Dimitrov, H.R., Dionisi, C., Dzhambazov, L., Dova, M.T., Drago, E., Duchesneau, D., Duinker, P., Duran, I., Easo, S., El Mamouni, H., Engler, A., Eppling, F.J., Erne, F.C., Extermann, P., Fabbretti, R., Fabre, M., Falciano, S., Fan, S.J., Fackler, O., Fay, J., Felcini, M., Ferguson, T., Fernandez, D., Fernandez, G., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, John, Filthaut, F., Finocchiaro, G., Fisher, P.H., Forconi, G., Foreman, T., Freudenreich, K., Friebel, W., Fukushima, M., Gailloud, M., Galaktionov, Yu., Gallo, E., Ganguli, S.N., Garcia-Abia, P., Gelé, D., Gentile, S., Goldfarb, S., Gong, Z.F., Gonzalez, E., Gougas, A., Goujon, D., Gratta, G., Gruenewald, M., Gu, C., Guanziroli, M., Guo, J.K., Gupta, V.K., Gurtu, A., Gustafson, H.R., Gutay, L.J., Hartmann, B., Hasan, A., Hauschildt, D., He, C.F., He, J.T., Hebbeker, T., Hebert, M., Herten, U., Herve, A., Hilgers, K., Hofer, H., Hoorani, H., Hu, G., Hu, G.Q., Ille, B., Ilyas, M.M., Innocente, V., Janssen, H., Jezequel, S., Jin, B.N., Jones, L.W., Kasser, A., Khan, R.A., Kamyshkov, Yu., Kapinos, P., Kapustinsky, J.S., Karyotakis, Y., Kaur, M., Khokhar, S., Kienzle-Focacci, M.N., Kim, J.K., Kim, S.C., Kim, Y.G., Kinnison, W.W., Kirkby, D., Kirsch, S., Kittel, W., Klimentov, A., Konig, A.C., Koffeman, E., Kornadt, O., Koutsenko, V., Koulbardis, A., Kraemer, R.W., Kramer, T., Krastev, V.R., Krenz, W., Krivshich, A., Kuitjen, H., Kumar, K.S., Kunin, A., Landi, G., Lanske, D., Lanzano, S., Lebrun, P., Lecomte, P., Lecoq, P., Le Coultre, P., Lee, D.M., Leedom, I., Leggett, C., Le Goff, J.M., Leiste, R., Lenti, M., Leonardi, Emilio, Leytens, X., Li, C., Li, H.T., Li, P.J., Liao, J.Y., Lin, W.T., Lin, Z.Y., Linde, F.L., Lindemann, B., Lista, L., Liu, Yehan, Lohmann, W., Longo, E., Lu, Y.S., Lubbers, J.M., Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., Ma, J.M., Ma, W.G., MacDermott, M., Malhotra, P.K., Malik, R., Malinin, A., Mana, C., Maolinbay, M., Marchesini, P., Marion, F., Marin, A., Martin, J.-P., Martinez-Laso, L., Marzano, F., Massaro, G.G.G., Mazumdar, K., McBride, P., McMahon, T., McNally, D., Merk, M., Merola, L., Meschini, M., Metzger, W.J., Mi, Y., Mills, G.B., Mir, Y., Mirabelli, G., Mnich, J., Moller, M., Monteleoni, B., Morand, R., Morganti, S., Moulai, N.E., Mount, R., Muller, S., Nadtochy, A., Nagy, E., Napolitano, M., Nessi-Tedaldi, F., Newman, H., Neyer, C., Niaz, M.A., Nippe, A., Nowak, H., Organtini, G., Pandoulas, D., Paoletti, S., Paolucci, P., Pascala, G., Passaleva, G., Patricelli, S., Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pei, Y.J., Pensotti, S., Perret-Gallix, D., Perrier, J., Pevsner, A., Piccolo, D., Pieri, M., Piroue, P.A., Plasil, F., Plyaskin, V., Pohl, M., Pozhidaev, V., Postema, H., Qi, Z.D., Qian, J.M., Qureshi, K.N., Raghavan, R., Rahal-Callot, G., Rancoita, P.G., Rattaggi, M., Raven, G., Razis, P., Read, K., Ren, D., Ren, Zhuoxiang, Rescigno, M., Reucroft, S., Ricker, A., Riemann, S., Riemers, W., Riles, K., Rind, O., Rizvi, H.A., Rodriguez, F.J., Roe, B.P., Rohner, M., Rohner, S., Romero, L., Rose, Jérôme, Rosier-Lees, S., Rosmalen, R., Rosselet, P., Van Rossum, W., Roth, S., Rubbia, A., Rubio, J.A., Rykaczewski, H., Sachwitz, M., Salicio, J., Salicio, J.M., Sanders, G.S., Santocchia, A., Sarakinos, M.S., Sartorelli, G., Sassowsky, M., Sauvage, G., Shchegelski, V., Schmitz, D., Schmitz, P., Schneegans, M., Schopper, H., Schotanus, D.J., Shotkin, S., Schreiber, H.J., Shukla, J., Schulte, R., Schulte, S., Schultze, K., Schwenke, J., Schwering, G., Sciacca, C., Scott, I., Sehgal, R., Seiler, P.G., Sens, J.C., Servoli, L., Sheer, I., Shen, D.Z., Shevchenko, S., Shi, X.R., Shumilov, E., Shoutko, V., Son, D., Sopczak, A., Spartiotis, C., Spickermann, T., Spillantini, P., Starosta, R., Steuer, M., Stickland, D.P., Sticozzi, F., Stone, H., Strauch, K., Stringfellow, D.G., Sudhakar, K., Sultanov, G., Sun, L.Z., Suter, H., Swain, J.D., Syed, A.A., Tang, X.W., Taylor, L., Terzi, G., 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, 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., Wyslouch, B., Xie, Y.Y., Xu, Y.D., Xu, Z.Z., Xue, Z.L., Yan, D.S., Yang, B.Z., Yang, C.G., Yang, G., Yang, Q.Y., Yang, Z.Q., 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, G.J., Zhou, J.F., Zhu, R.Y., Zichichi, A., Van Der Zwaan, B.C.C., Adriani, O., Aguilarbenitez, M., Ahlen, S., Alcaraz, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., An, Q., Anderhub, H., Anderson, A. L., Andreev, V. P., Antonov, L., Antreasyan, D., Arce, P., Arefiev, A., Atamanchuk, A., Azemoon, T., Aziz, T., P. V. K., Bagnaia, P., Bakken, J. A., Baksay, L., Ball, R. C., Banerjee, S., Bao, J., Barillere, R., Barone, L., Baschirotto, A., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Behrens, J., Bencze, G. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Bizzarri, R., Blaising, J. J., Bobbink, G. J., Bock, R., Bohm, A., Borgia, B., Bosetti, M., Bourilkov, D., Bourquin, M., Boutigny, D., Bouwens, B., Brambilla, E., Branson, J. G., Brock, J. C., Brooks, M., Bujak, A., Burger, J. D., Burger, W. J., Busenitz, J., Buytenhuijs, A., Cai, X. D., Capell, M., Caria, M., Carlino, G., Cartacci, A. M., Castello, R., Cerrada, M., Cesaroni, F., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, C., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chen, W. Y., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Chung, S., Civinini, C., Clare, I., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colino, N., Contin, A., Cui, X. T., Cui, X. Y., Dai, T. S., Dalessandro, R., Deasmundis, R., Degre, A., Deiters, K., Denes, E., Denes, P., Denotaristefani, F., Dhina, M., Dibitonto, D., Diemoz, M., Dimitrov, H. R., Dionisi, C., Djambazov, L., Dova, M. T., Drago, E., Duchesneau, D., Duinker, P., Duran, I., Easo, S., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. C., Extermann, P., Fabbretti, R., Fabre, M., Falciano, S., Fan, S. J., Fackler, O., Fay, J., Felcini, M., Ferguson, T., Fernandez, D., Fernandez, G., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J., Filthaut, F., Finocchiaro, G., Fisher, P. H., Forconi, G., Foreman, T., Freudenreich, K., Friebel, W., Fukushima, M., Gailloud, M., Galaktionov, Y., Gallo, E., Ganguli, S. N., Garciaabia, P., Gele, D., Gentile, S., Goldfarb, S., Gong, Z. F., Gonzalez, E., Gougas, A., Goujon, D., Gratta, G., Gruenewald, M., Gu, C., Guanziroli, M., Guo, J. K., Gupta, V. K., Gurtu, A., Gustafson, H. R., Gutay, L. J., Hangarter, K., Hartmann, B., Hasan, A., Hauschildt, D., C. F., He, J. T., He, Hebbeker, T., Hebert, M., Herten, G., Herve, A., Hilgers, K., Hofer, H., Hoorani, H., Hu, G., G. Q., Hu, Ille, B., Ilyas, M. M., Innocente, V., Janssen, H., Jezequel, S., Jin, B. N., Jones, L. W., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Khokhar, S., Kienzlefocacci, M. N., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, D., Kirsch, S., Kittel, W., Klimentov, A., Konig, A. C., Koffeman, E., Kornadt, O., Koutsenko, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krastev, V. R., Krenz, W., Krivshich, A., Kuijten, H., Kumar, K. S., Kunin, A., Landi, G., Lanske, D., Lanzano, S., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, P., Lee, D. M., Leedom, I., Leggett, C., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Leytens, X., Li, C., H. T., Li, P. J., Li, Liao, J. Y., Lin, W. T., Lin, Z. Y., Linde, F. L., Lindemann, B., Lista, L., Liu, Y., Lohmann, W., Longo, E., Y. S., Lu, Lubbers, J. M., Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., J. M., Ma, W. G., Ma, Macdermott, M., Malhotra, P. K., Malik, R., Malinin, A., Mana, C., Maolinbay, M., Marchesini, P., Marion, F., Marin, A., Martin, J. P., Martinezlaso, L., Marzano, F., G. G. G., Mazumdar, K., Mcbride, P., Mcmahon, T., Mcnally, D., Merk, M., Merola, Leonardo, Meschini, M., Metzger, W. J., Mi, Y., Mills, G. B., Mir, Y., Mirabelli, G., Mnich, J., Moller, M., Monteleoni, B., Morand, R., Morganti, S., Moulai, N. E., Mount, R., Muller, S., Nadtochy, A., Nagy, E., Napolitano, Marco, Nessitedaldi, F., Newman, H., Neyer, C., Niaz, M. A., Nippe, A., Nowak, H., Organtini, G., Pandoulas, D., Paoletti, S., Paolucci, P., Pascala, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pei, Y. J., Pensotti, S., Perretgallix, D., Perrier, J., Pevsner, A., Piccolo, D., Pieri, M., Piroue, P. A., Plasil, F., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Z. D., Qi, Qian, J. M., Qureshi, K. N., Raghavan, R., Rahalcallot, G., Rancoita, P. G., Rattaggi, M., Raven, G., Razis, P., Read, K., Ren, D., Ren, Z., Rescigno, M., Reucroft, S., Ricker, A., Riemann, S., Riemers, B. C., Riles, K., Rind, O., Rizvi, H. A., Rodriguez, F. J., Roe, B. P., Rohner, M., Rohner, S., Romero, L., Rose, J., Rosierlees, S., Rosmalen, R., Rosselet, P., Vanrossum, W., Roth, S., Rubbia, A., Rubio, J. A., Rykaczewski, H., Sachwitz, M., Salicio, J., Salicio, J. M., Sanders, G. S., Santocchia, A., Sarakinos, M. S., Sartorelli, G., Sassowsky, M., Sauvage, G., Schegelsky, V., Schmitz, D., Schmitz, P., Schneegans, M., Schopper, H., Schotanus, D. J., Shotkin, S., Schreiber, H. J., Shukla, J., Schulte, R., Schulte, S., Schultze, K., Schwenke, J., Schwering, G., Sciacca, Crisostomo, Scott, I., Sehgal, R., Seiler, P. G., Sens, J. C., Servoli, L., Sheer, I., Shen, D. Z., Shevchenko, S., Shi, X. R., Shumilov, E., Shoutko, V., Son, D., Sopczak, A., Spartiotis, C., Spickermann, T., Spillantini, P., Starosta, R., Steuer, M., Stickland, D. P., Sticozzi, F., Stone, H., Strauch, K., Stringfellow, B. C., Sudhakar, K., Sultanov, G., Sun, L. Z., Suter, H., Swain, J. D., Syben, O., Syed, A. A., Tang, X. W., Taylor, L., Terzi, G., S. 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., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, C., Wang, C. R., Wang, G. 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., S. X., Wu, Wyslouch, B., Xie, Y. Y., J. G., Xu, Z. Z., Xu, Xue, Z. L., Yan, D. S., Yang, B. Z., Yang, C. G., Yang, G., C. H., Ye, J. B., Ye, 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, G. J., Zhou, J. F., Zhu, R. Y., Zichichi, A., 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), Institut de Physique Nucléaire de Lyon (IPNL), 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), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), 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), L3, L3, Collaboration, Lista, Luca, Alviggi, M G, Merola, L, Sciacca, C, Patricelli, S, and And, Others.
Subjects: Particle physics, FERMION PAIR PRODUCTION, LUND MONTE-CARLO, Electron–positron annihilation, General Physics and Astronomy, Elementary particle, 01 natural sciences, ELECTRON-POSITRON-ANNIHILATION, Nuclear physics, Physics and Astronomy (all), Particle decay, B-MESON DECAYS, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], LEADING-LOGARITHMIC APPROXIMATION, 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), CONSTANT ALPHA-S, Quantum chromodynamics, Physics, Muon, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, SQUARE-ROOT-S, NEUTRAL HEAVY-LEPTONS, Large Electron–Positron Collider, Higgs boson, LIGHT HIGGS BOSON, High Energy Physics::Experiment, Particle Physics - Experiment, HADRONIC-Z-DECAYS, Lepton
Abstract: In this report we summarize the major results from the first three years of running of the L3 detector at the Large Electron Positron collider (LEP). The L3 detector was designed to measure electrons, photons and muons with high precision; it has achieved (DELTAE/E) almost-equal-to 1.4% for electrons and photons at E = 45 GeV and (DELTAp/p) almost-equal-to 2.5% for muons at p = 45 GeV. Most of the experimental results presented are based on approximately 500 000 Z events. The data provide four independent checks of the Standard Model weak neutral currents to an accuracy of almost-equal-to 1%. These are: the measurement of Z parameters; the measurement of the forward-backward charge asymmetry of lepton pairs; the measurement of asymmetry parameters from Z --> bbBAR decays; and the measurement of the tau lepton polarization asymmetry. The data also provide information on weak charged currents from measurements of b hadrons such as decay width, lifetime, and B0-B0BAR mixing, and from measurements Of tau leptons such as their lifetime and branching ratios. The large number of Z events and the resolution of the L3 detector allow precision tests of QED and QCD, including the production of pi0, eta and hard photons. Leptonic final states with hard isolated photons are analyzed and high mass photon pairs are observed. Higgs boson production has not been observed and limits are given in the context of the Standard Model and its supersymmetric extensions. We also present upper limits on rare Z decays such as Z --> gammagammagamma and on flavor violating decays such as Z --> etau, mutau. Finally, upper limits obtained in the search for various new particles and new interactions are reported.
Published: 1993

140. Measurement of Eta(C) Production in Untagged 2-Photon Collisions at Lep

Author: O. ADRIANI, M. AGUILARBENITZ, S. AHLEN, J. ALCARAZ, G. ALVERSON, G. AMBROSI, Q. AN, H. ANDERHUB, A. L. ANDERSON, V. P. ANDREEV, T. ANGELESCU, L. ANTONOV, D. ANTREASYAN, P. ARCE, A. AREFIEV, A. ATAMANCHUK, T. AZEMOON, T. AZIZ, P. V. K., P. BAGNAIA, J. A. BAKKEN, R. C. BALL, S. BANERJEE, J. BAO, R. BARILLERE, L. BARONE, A. BASCHIROTTO, R. BATTISTON, A. BAY, F. BECATTINI, J. BECHTLUFT, R. BECKER, U. BECKER, F. BEHNER, J. BEHRENS, G. L. BENCZE, J. BERDUGO, P. BERGES, B. BERTUCCI, B. L. BETEV, M. BIASINI, A. BILAND, G. M. BILEI, R. BIZZARRI, J. J. BLAISING, G. J. BOBBINK, R. BOCK, A. BOHM, B. BORGIA, M. BOSETTI, D. BOURILKOV, M. BOURQUIN, D. BOUTIGNY, B. BOUWENS, E. BRAMBILLA, J. G. BRANSON, I. C. BROCK, M. BROOKS, A. BUJAK, J. D. BURGER, W. J. BURGER, J. BUSENITZ, A. BUYTENHUIJS, X. D. CAI, M. CAPELL, M. CARIA, G. CARLINO, A. M. CARTACCI, R. CASTELLO, M. CERRADA, F. CESARONI, Y. H. CHANG, U. K. CHATURVEDI, M. CHEMARIN, A. CHEN, C. CHEN, G. CHEN, G. M. CHEN, H. F. CHEN, H. S. CHEN, M. CHEN, W. Y. CHEN, C. Y. CHIEN, M. T. CHOI, S. CHUNG, C. CIVININI, I. CLARE, R. CLARE, T. E. COAN, H. O. COHN, G. COIGNET, N. COLINO, A. CONTIN, S. COSTANTINI, F. COTOROBAI, X. T. CUI, X. Y. CUI, T. S. DAI, R. DALESSANDRO, R. DEASMUNDIS, A. DEGRE, K. DEITERS, E. DENES, P. DENES, F. DENOTARISTEFANI, M. DHINA, D. DIBITONTO, M. DIEMOZ, H. R. DIMITROV, C. DIONISI, M. DITTMAR, L. DJAMBAZOV, M. T. DOVA, E. DRAGO, D. DUCHESNEAU, P. DUINKER, I. DURAN, S. EASO, H. ELMAMOUNI, A. ENGLER, F. J. EPPLING, F. C. ERNE, P. EXTERMANN, R. FABBRETTI, M. FABRE, S. FALCIANO, S. J. FAN, O. FACKLER, J. FAY, M. FELCINI, T. FERGUSON, D. FERNANDEZ, G. FERNANDEZ, F. FERRONI, H. FESEFELDT, E. FIANDRINI, J. H. FIELD, F. FILTHAUT, P. H. FISHER, G. FORCONI, L. FREDJ, K. FREUDENREICH, W. FRIEBEL, M. FUKUSHIMA, M. GAILLOUD, Y. GALAKTIONOV, E. GALLO, S. N. GANGULI, P. GARCIAABIA, D. GELE, S. GENTILE, N. GHEORDANESCU, S. GIAGU, S. GOLDFARB, Z. F. GONG, E. GONZALEZ, A. GOUGAS, D. GOUJON, G. GRATTA, M. GRUENEWALD, C. GU, M. GUANZIROLI, J. K. GUO, V. K. GUPTA, A. GURTU, H. R. GUSTAFSON, L. J. GUTAY, K. HANGARTER, B. HARTMANN, A. HASAN, D. HAUSCHILDT, C. F. HE, J. T. HE, T. HEBBEKER, M. HEBERT, A. HERVE, K. HILGERS, H. HOFER, H. HOORANI, G. HU, G. Q. HU, B. ILLE, M. M. ILYAS, V. INNOCENTE, H. JANSSEN, S. JEZEQUEL, B. N. JIN, L. W. JONES, I. JOSAMUTUBERRIA, A. KASSER, R. A. KHAN, Y. KAMYSHKOV, P. KAPINOS, J. S. KAPUSTINSKY, Y. KARYOTAKIS, M. KAUR, S. KHOKHAR, M. N. KIENZLEFOCACCI, J. K. KIM, S. C. KIM, Y. G. KIM, W. W. KINNISON, A. KIRKBY, D. KIRKBY, S. KIRSCH, W. KITTEL, A. KLIMENTOV, R. KLOCKNER, A. C. KONIG, E. KOFFEMAN, O. KORNADT, V. KOUTSENKO, A. KOULBARDIS, R. W. KRAEMER, T. KRAMER, V. R. KRASTEV, W. KRENZ, A. KRIVSHICH, H. KUIJTEN, K. S. KUMAR, A. KUNIN, G. LANDI, D. LANSKE, S. LANZANO, A. LEBEDEV, P. LEBRUN, P. LECOMTE, P. LECOQ, P. LECOULTRE, D. M. LEE, J. S. LEE, K. Y. LEE, I. LEEDOM, C. LEGGETT, J. M. LEGOFF, R. LEISTE, M. LENTI, E. LEONARDI, C. LI, H. T. LI, P. J. LI, J. Y. LIAO, W. T. LIN, Z. Y. LIN, F. L. LINDE, B. LINDEMANN, L. LISTA, Y. LIU, W. LOHMANN, E. LONGO, Y. S. LU, J. M. LUBBERS, K. LUBELSMEYER, C. LUCI, D. LUCKEY, L. LUDOVICI, L. LUMINARI, W. LUSTERMANN, J. M. MA, W. G. MA, M. MACDERMOTT, R. MALIK, A. MALININ, C. MANA, M. MAOLINBAY, P. MARCHESINI, F. MARION, A. MARIN, J. P. MARTIN, L. MARTINEZLASO, F. MARZANO, G. G. G., K. MAZUMDAR, P. MCBRIDE, T. MCMAHON, D. MCNALLY, M. MERK, M. MESCHINI, W. J. METZGER, Y. MI, A. MIHUL, G. B. MILLS, Y. MIR, G. MIRABELLI, J. MNICH, M. MOLLER, B. MONTELEONI, R. MORAND, S. MORGANTI, N. E. MOULAI, R. MOUNT, S. MULLER, A. NADTOCHY, E. NAGY, F. NESSITEDALDI, H. NEWMAN, C. NEYER, M. A. NIAZ, A. NIPPE, H. NOWAK, G. ORGANTINI, D. PANDOULAS, S. PAOLETTI, P. PAOLUCCI, G. PASCALE, G. PASSALEVA, T. PAUL, M. PAULUZZI, C. PAUS, F. PAUSS, Y. J. PEI, S. PENSOTTI, D. PERRETGALLIX, J. PERRIER, A. PEVSNER, D. PICCOLO, M. PIERI, P. A. PIROUE, F. PLASIL, V. PLYASKIN, M. POHL, V. POJIDAEV, H. POSTEMA, Z. D. QI, J. M. QIAN, K. N. QURESHI, R. RAGHAVAN, G. RAHALCALLOT, P. G. RANCOITA, M. RATTAGGI, G. RAVEN, P. RAZIS, K. READ, D. REN, Z. REN, M. RESCIGNO, S. REUCROFT, A. RICKER, S. RIEMANN, B. C. RIEMERS, K. RILES, O. RIND, H. A. RIZVI, S. RO, F. J. RODRIGUEZ, B. P. ROE, M. ROHNER, L. ROMERO, S. ROSIERLEES, R. ROSMALEN, P. ROSSELET, W. VANROSSUM, S. ROTH, A. RUBBIA, J. A. RUBIO, H. RYKACZEWSKI, M. SACHWITZ, J. SALICIO, J. M. SALICIO, G. S. SANDERS, A. SANTOCCHIA, M. S. SARAKINOS, G. SARTORELLI, M. SASSOWSKY, G. SAUVAGE, V. SCHEGELSKY, D. SCHMITZ, P. SCHMITZ, M. SCHNEEGANS, H. SCHOPPER, D. J. SCHOTANUS, S. SHOTKIN, H. J. SCHREIBER, J. SHUKLA, R. SCHULTE, S. SCHULTE, K. SCHULTZE, J. SCHWENKE, G. SCHWERING, I. SCOTT, R. SEHGAL, P. G. SEILER, J. C. SENS, L. SERVOLI, I. SHEER, D. Z. SHEN, S. SHEVCHENKO, X. R. SHI, E. SHUMILOV, V. SHOUTKO, D. SON, A. SOPCZAK, V. SOULIMOV, C. SPARTIOTIS, T. SPICKERMANN, P. SPILLANTINI, R. STAROSTA, M. STEUER, D. P. STICKLAND, F. STICOZZI, H. STONE, K. STRAUCH, B. C. STRINGFELLOW, K. SUDHAKAR, G. SULTANOV, L. Z. SUN, G. F. SUSINNO, H. SUTER, J. D. SWAIN, A. A. SYED, X. W. TANG, L. TAYLOR, G. TERZI, S. C. C., S. M. TING, M. TONUTTI, S. C. TONWAR, J. TOTH, A. TSAREGORODTSEV, G. TSIPOLITIS, C. TULLY, K. L. TUNG, J. ULBRICHT, L. URBAN, U. UWER, E. VALENTE, R. T. VANDEWALLE, I. VETLITSKY, G. VIERTEL, P. VIKAS, U. VIKAS, M. VIVARGENT, H. VOGEL, H. VOGT, I. VOROBIEV, A. A. VOROBYOV, L. VUILLEUMIER, M. WADHWA, W. WALLRAFF, C. WANG, C. R. WANG, X. L. WANG, Y. F. WANG, Z. M. WANG, C. WARNER, A. WEBER, J. WEBER, R. WEILL, T. J. WENAUS, J. WENNINGER, M. WHITE, C. WILLMOTT, F. WITTGENSTEIN, D. WRIGHT, S. X. WU, S. WYNHOFF, B. WYSLOUCH, Y. Y. XIE, J. G. XU, Z. Z. XU, Z. L. XUE, D. S. YAN, B. Z. YANG, C. G. YANG, G. YANG, C. H. YE, J. B. YE, Q. YE, S. C. YEH, Z. W. YIN, J. M. YOU, N. YUNUS, M. YZERMAN, C. ZACCARDELLI, N. ZAITSEV, P. ZEMP, M. ZENG, Y. ZENG, D. H. ZHANG, Z. P. ZHANG, B. ZHOU, G. J. ZHOU, J. F. ZHOU, R. Y. ZHU, A. ZICHICHI, B. C. C., ALOISIO, ALBERTO, ALVIGGI, MARIAGRAZIA, CHIEFARI, GIOVANNI, MEROLA, LEONARDO, NAPOLITANO, MARCO, PATRICELLI, SERGIO, SCIACCA, CRISOSTOMO, Adriani, O., Aguilarbenitz, M., Ahlen, S., Alcaraz, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., An, Q., Anderhub, H., Anderson, A. L., Andreev, V. P., Angelescu, T., Antonov, L., Antreasyan, D., Arce, P., Arefiev, A., Atamanchuk, A., Azemoon, T., Aziz, T., P. V. K., Bagnaia, P., Bakken, J. A., Ball, R. C., Banerjee, S., Bao, J., Barillere, R., Barone, L., Baschirotto, A., Battiston, R., Bay, A., Becattini, F., Bechtluft, J., Becker, R., Becker, U., Behner, F., Behrens, J., Bencze, G. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Bizzarri, R., Blaising, J. J., Bobbink, G. J., Bock, R., Bohm, A., Borgia, B., Bosetti, M., Bourilkov, D., Bourquin, M., Boutigny, D., Bouwens, B., Brambilla, E., Branson, J. G., Brock, I. C., Brooks, M., Bujak, A., Burger, J. D., Burger, W. J., Busenitz, J., Buytenhuijs, A., Cai, X. D., Capell, M., Caria, M., Carlino, G., Cartacci, A. M., Castello, R., Cerrada, M., Cesaroni, F., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, C., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chen, W. Y., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Chung, S., Civinini, C., Clare, I., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colino, N., Contin, A., Costantini, S., Cotorobai, F., Cui, X. T., Cui, X. Y., Dai, T. S., Dalessandro, R., Deasmundis, R., Degre, A., Deiters, K., Denes, E., Denes, P., Denotaristefani, F., Dhina, M., Dibitonto, D., Diemoz, M., Dimitrov, H. R., Dionisi, C., Dittmar, M., Djambazov, L., Dova, M. T., Drago, E., Duchesneau, D., Duinker, P., Duran, I., Easo, S., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. C., Extermann, P., Fabbretti, R., Fabre, M., Falciano, S., Fan, S. J., Fackler, O., Fay, J., Felcini, M., Ferguson, T., Fernandez, D., Fernandez, G., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Forconi, G., Fredj, L., Freudenreich, K., Friebel, W., Fukushima, M., Gailloud, M., Galaktionov, Y., Gallo, E., Ganguli, S. N., Garciaabia, P., Gele, D., Gentile, S., Gheordanescu, N., Giagu, S., Goldfarb, S., Gong, Z. F., Gonzalez, E., Gougas, A., Goujon, D., Gratta, G., Gruenewald, M., Gu, C., Guanziroli, M., Guo, J. K., Gupta, V. K., Gurtu, A., Gustafson, H. R., Gutay, L. J., Hangarter, K., Hartmann, B., Hasan, A., Hauschildt, D., C. F., He, J. T., He, Hebbeker, T., Hebert, M., Herve, A., Hilgers, K., Hofer, H., Hoorani, H., Hu, G., G. Q., Hu, Ille, B., Ilyas, M. M., Innocente, V., Janssen, H., Jezequel, S., Jin, B. N., Jones, L. W., Josamutuberria, I., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Khokhar, S., Kienzlefocacci, M. N., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, A., Kirkby, D., Kirsch, S., Kittel, W., Klimentov, A., Klockner, R., Konig, A. C., Koffeman, E., Kornadt, O., Koutsenko, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krastev, V. R., Krenz, W., Krivshich, A., Kuijten, H., Kumar, K. S., Kunin, A., Landi, G., Lanske, D., Lanzano, S., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, P., Lee, D. M., Lee, J. S., Lee, K. Y., Leedom, I., Leggett, C., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Li, C., H. T., Li, P. J., Li, Liao, J. Y., Lin, W. T., Lin, Z. Y., Linde, F. L., Lindemann, B., Lista, L., Liu, Y., Lohmann, W., Longo, E., Y. S., Lu, Lubbers, J. M., Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., J. M., Ma, W. G., Ma, Macdermott, M., Malik, R., Malinin, A., Mana, C., Maolinbay, M., Marchesini, P., Marion, F., Marin, A., Martin, J. P., Martinezlaso, L., Marzano, F., G. G. G., Mazumdar, K., Mcbride, P., Mcmahon, T., Mcnally, D., Merk, M., Merola, Leonardo, Meschini, M., Metzger, W. J., Mi, Y., Mihul, A., Mills, G. B., Mir, Y., Mirabelli, G., Mnich, J., Moller, M., Monteleoni, B., Morand, R., Morganti, S., Moulai, N. E., Mount, R., Muller, S., Nadtochy, A., Nagy, E., Napolitano, Marco, Nessitedaldi, F., Newman, H., Neyer, C., Niaz, M. A., Nippe, A., Nowak, H., Organtini, G., Pandoulas, D., Paoletti, S., Paolucci, P., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pei, Y. J., Pensotti, S., Perretgallix, D., Perrier, J., Pevsner, A., Piccolo, D., Pieri, M., Piroue, P. A., Plasil, F., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Z. D., Qi, Qian, J. M., Qureshi, K. N., Raghavan, R., Rahalcallot, G., Rancoita, P. G., Rattaggi, M., Raven, G., Razis, P., Read, K., Ren, D., Ren, Z., Rescigno, M., Reucroft, S., Ricker, A., Riemann, S., Riemers, B. C., Riles, K., Rind, O., Rizvi, H. A., Ro, S., Rodriguez, F. J., Roe, B. P., Rohner, M., Romero, L., Rosierlees, S., Rosmalen, R., Rosselet, P., Vanrossum, W., Roth, S., Rubbia, A., Rubio, J. A., Rykaczewski, H., Sachwitz, M., Salicio, J., Salicio, J. M., Sanders, G. S., Santocchia, A., Sarakinos, M. S., Sartorelli, G., Sassowsky, M., Sauvage, G., Schegelsky, V., Schmitz, D., Schmitz, P., Schneegans, M., Schopper, H., Schotanus, D. J., Shotkin, S., Schreiber, H. J., Shukla, J., Schulte, R., Schulte, S., Schultze, K., Schwenke, J., Schwering, G., Sciacca, Crisostomo, Scott, I., Sehgal, R., Seiler, P. G., Sens, J. C., Servoli, L., Sheer, I., Shen, D. Z., Shevchenko, S., Shi, X. R., Shumilov, E., Shoutko, V., Son, D., Sopczak, A., Soulimov, V., Spartiotis, C., Spickermann, T., Spillantini, P., Starosta, R., Steuer, M., Stickland, D. P., Sticozzi, F., Stone, H., Strauch, K., Stringfellow, B. C., Sudhakar, K., Sultanov, G., Sun, L. Z., Susinno, G. F., Suter, H., Swain, J. D., Syed, A. A., Tang, X. W., Taylor, L., Terzi, G., S. 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., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, C., Wang, C. R., Wang, X. L., Wang, Y. F., Wang, Z. M., Warner, C., Weber, A., Weber, J., Weill, R., Wenaus, T. J., Wenninger, J., White, M., Willmott, C., Wittgenstein, F., Wright, D., S. X., Wu, Wynhoff, S., Wyslouch, B., Xie, Y. Y., J. G., Xu, Z. Z., Xu, Xue, Z. L., Yan, D. S., Yang, B. Z., Yang, C. G., Yang, G., C. H., Ye, J. B., Ye, Ye, Q., Yeh, S. C., Yin, Z. W., You, J. M., Yunus, N., Yzerman, M., Zaccardelli, C., Zaitsev, N., Zemp, P., Zeng, M., Zeng, Y., Zhang, D. H., Zhang, Z. P., Zhou, B., Zhou, G. J., Zhou, J. F., Zhu, R. Y., Zichichi, A., and B. C. C.
Subjects: CHARMONIUM, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries)
Abstract: A study of twelve distinct decay channels of the eta(c) has been performed with the L3 detector at LEP, for an integrated luminosity of 30 pb-1. Summing all channels, 28 candidate events have been identified, with an estimated background of 11 events. The two-photon radiative width is evaluated to be GAMMA(gammagamma) (eta(c)) = 8.0 +/- 2.3 +/- 2.4 keV.
Published: 1993

141. Search For Narrow Vector Resonances In the Z Mass Range

Author: Christoph Paus, X. R. Shi, Felicitas Pauss, J. Behrens, S. Rosier-Lees, P. J. Li, P. Le Coultre, H. El Mamouni, B. Monteleoni, P. Lebrun, F. Sticozzi, C. Spartiotis, K. Hangarter, BT Bouwens, P. Arce, D. Goujon, J. M. Ma, Gerard Fernandez, J. K. Kim, R. Starosta, D. Luckey, U. Uwer, H. Kuijten, A. Chen, J. Salicio, Vincenzo Innocente, S. X. Wu, R. Morand, Z. L. Xue, Gy L. Bencze, Reinhard W. Schulte, F. C. Erné, Yu. Galaktionov, A. Sopczak, J. Alcaraz, Yu. Kamyshkov, Mw Gruenewald, G. B. Mills, D. DiBitonto, Ph. Rosselet, M. N. Kienzle-Focacci, R. Rosmalen, A. Tsaregorodtsev, C-Q. Li, V. K. Gupta, S. Easo, V. Plyaskin, L. Antonov, C. G. Yang, Jozsef Toth, M. Steuer, G. Forconi, J. Weber, Howard A. Stone, R. Bizzarri, Gianpaolo Carlino, F. DeNotaristefani, K. S. Kumar, Zhongyukun Xu, P. K. Malhotra, H. A. Rizvi, G. Schwering, Elisabetta Gallo, S. Schulte, H. Anderhub, D. Perret-Gallix, A. Kunin, Y. J. Pei, W. van Rossum, Chenliang Wang, J. M. Salicio, C. Neyer, Stefan Kirsch, Cheng Chen, Roberto Battiston, D. Pandoulas, W. J. Burger, U. K. Chaturvedi, A. Kasser, Guofan Hu, Roberto Castello, M. T. Dova, F. J. Rodriguez, H. R. Gustafson, P. Berges, Hafeez R Hoorani, Y. Mir, C. H. Ye, Y. S. Lu, R. Mount, Samuel C.C. Ting, L. Romero, S. Reucroft, C. Zaccardelli, S. Shotkin, S. Röhner, F. Wittgenstein, A. A. Syed, A. Nippe, D. Duchesneau, Wt Lin, P. G. Rancoita, An.A. Vorobyov, H. O. Cohn, Jérôme Rose, Dimitri Bourilkov, P. Zemp, Alexander Malinin, R. de Asmundis, Z. F. Gong, Gerjan Bobbink, M. Bourquin, G. Passaleva, J. H. Field, C. Y. Chien, K. Strauch, M. Bosetti, X. L. Wang, T. E. Coan, J. G. Branson, O. Adriani, W. Y. Chen, B. Borgia, Lucas Taylor, W. W. Kinnison, S. C. Yeh, D. Gele, W. Kittel, B. N. Jin, X. T. Cui, S. C. Tonwar, O. Rind, L. Ludovici, E. Drago, B. Zhou, P. Vikas, H. Nowak, Davide Piccolo, Z. W. Yin, Frank Filthaut, Ren-Yuan Zhu, J. Ulbricht, E. Nagy, A. Degré, M. Rescigno, R. Barillère, Thomas Ferguson, Steven Ahlen, M. T. Choi, A. Arefiev, Luciano Barone, M. Wadhwa, G. Tsipolitis, Francesca Nessi-Tedaldi, W. J. Metzger, Adrian Biland, J. D. Burger, E. Valente, Georgi Sultanov, M. Fabre, M. Schneegans, D. M. Lee, T. S. Dai, Marco Meschini, R. A. Khan, M. Rattaggi, G. Rahal-Callot, W. Wallraff, G. Herten, W. Friebel, T. J. Wenaus, P.V.K.S. Baba, S. J. Fan, A. Gurtu, A. Marin, Els Koffeman, N. E. Moulai, Maurizio Biasini, H. J. Schreiber, D. Kirkby, K. Sudhakar, Marta Felcini, Francesco Becattini, Y. G. Kim, V. P. Andreev, B. P. Roe, C. Wang, K. Riles, D.W. Schmitz, G.G.G. Massaro, S. Banerjee, Claudio Luci, Zp Zhang, Robert Clare, K. Schultze, B.C. Stringfellow, F. Marzano, M. Yzerman, E. Brambilla, G. Coignet, W. Krenz, M. Capell, M. Chemarin, Christopher George Tully, J. B. Ye, A. Hasan, H. Suter, G. M. Chen, D. McNally, Wolfgang Lohmann, H. Vogt, B. Bertucci, D. Lanske, D. Z. Shen, S. C. Kim, J. A. Bakken, M. Sassowsky, Pierluigi Paolucci, M. 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H., Ye, J. B., Ye, 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, G. J., Zhou, J. F., Zhu, R. Y., Zichichi, A., 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), Institut de Physique Nucléaire de Lyon (IPNL), 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), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), 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), L3, and IHEF (IoP, FNWI)
Subjects: Nuclear and High Energy Physics, Particle physics, COLLISIONS, FERMION PAIR PRODUCTION, Hadron, QED CORRECTIONS, = 1.8 TEV, 01 natural sciences, DECAYS, Nuclear physics, EVENTS, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Nuclear Experiment, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Mixing (physics), Physics, Range (particle radiation), 010308 nuclear & particles physics, State (functional analysis), Quarkonium, lcsh:QC1-999, High Energy Physics::Experiment, Particle Physics - Experiment, lcsh:Physics, Production rate
Abstract: The hadronic lineshape of the Z has been analyzed for evidence of signals of new, narrow vector resonances in the Z-mass range. The production rate of such resonances would be enhanced due to mixing with the Z. No evidence for new states is found, and it is thus possible to exclude, at the 95% confidence level, a quarkonium state in the mass range from 87.7 to 94.7 GeV.
Published: 1993

142. Chi(C)-Production in Hadronic Z-Decays

Author: J. Alcaraz, S. Khokhar, J. M. Lubbers, H. Rykaczewski, G. Forconi, S. X. Wu, Luca Lista, S. Ro, C. Willmott, W. J. Burger, J. M. Salicio, Ph. Rosselet, C. H. Ye, C. Zaccardelli, J. S. Kapustinsky, D. Pandoulas, W. W. Kinnison, M. Steuer, S. C. Yeh, Pierluigi Paolucci, M. Zeng, R. de Asmundis, C. Y. Chien, B. Wysłouch, P. Razis, Yu. Galaktionov, P. Schmitz, V. Soulimov, J. F. Zhou, F. Plasil, E. Gonzalez, F. J. Rodriguez, Egidio Longo, M. Pauluzzi, H. El Mamouni, An.A. Vorobyov, H. R. Gustafson, Marcella Diemoz, B. P. Roe, F. Marion, G. J. Bobbink, E. Gallo, J. Shukla, I. Clare, V. Innocente, P. Kapinos, O. Adriani, A.M. Cartacci, A. Arefiev, G. Carlino, Oliver Kornadt, J. H. Field, A. Kirkby, G. M. Bilei, R. Fabbretti, D. McNally, W. van Rossum, Lucas Taylor, M. G. Alviggi, Zhiqing Zhang, H. Hofer, Kajari Mazumdar, E. Fiandrini, Simone Paoletti, I. C. Brock, Z. D. Qi, Maria-Teresa Dova, Raffaello D'Alessandro, F. C. Erné, K. Riles, N. Zaitsev, Leonardo Merola, D. Gele, Andrea Contin, P. Zemp, Y. Mi, J. M. Le Goff, A. Kasser, Guofan Hu, G. Rahal-Callot, F. Marzano, A. Biland, M. Bosetti, J. G. Branson, T. Angelescu, D. Luckey, Ren-Yuan Zhu, Luciano Barone, K. Y. Lee, S. Patricelli, W. Krenz, G. Schwering, T. Azemoon, Z. Y. Lin, A. Krivshich, Samuel C.C. Ting, Yu. Kamyshkov, P. G. Rancoita, E. Valente, W. J. Metzger, Z. W. Yin, E. Dénes, A. Gurtu, M. Fukushima, S. Shotkin, John Swain, A. Degré, Marcos Cerrada, Harvey B Newman, A. A. Syed, K. Hilgers, S. Riemann, G. F. Susinno, P. H. Fisher, E. Brambilla, S. J. Fan, B. Hartmann, Giovanni Ambrosi, G. Landi, D. Goujon, J. M. Ma, P. Le Coultre, J. A. Rubio, A. Hasan, J. Behrens, Hans J. Vogel, G. Passaleva, M. W. Gruenewald, I. Josa-Mutuberria, S. C. Kim, P.G. Seiler, J. Busenitz, C. Spartiotis, M. Rattaggi, G. M. Chen, L. Fredj, J. M. You, S. Morganti, M. Dhina, J. Schwenke, T. J. Wenaus, F. Ferroni, A. Sopczak, Y. S. Lu, A. Engler, S. Costantini, A. Marin, P. Extermann, D. M. Lee, E. Drago, P. J. Li, A. Mihul, K. S. Kumar, B. C. Stringfellow, Y. Zeng, Q. An, M. Schneegans, M. Vivargent, W. Wallraff, Peter Denes, T. McMahon, G. Tsipolitis, M. Caria, Paolo Bagnaia, A. Koulbardis, K. Schultze, BT Bouwens, M. Capell, M. Kaur, A. Atamanchuk, A. C. König, B. Z. Yang, M. M. Ilyas, Yueh-Feng Liu, J. C. Sens, G. Yang, Marco Meschini, S. Banerjee, Tobias Kramer, G. S. Sanders, R. Klöckner, D. Kirkby, D. Bourilkov, L. Djambazov, Maurizio Biasini, S. Schulte, D. Z. Shen, X. D. Cai, C. Li, J. A. Bakken, G. Terzi, Marta Felcini, M. Sassowsky, E. Nagy, D. Lanske, M. Röhner, J. P. Martin, J. Bechtluft, K. Sudhakar, P. Lecomte, H. Anderhub, C. Wang, U. Uwer, O. Fackler, V. Koutsenko, Konrad Deiters, J. Salicio, D. Duchesneau, P. Marchesini, Zheng Wang, W. Lohmann, J. D. Burger, S. Easo, Christopher George Tully, Wt Lin, L. Urbán, F. Pauss, N. Yunus, W. Y. Chen, G. Gratta, A. Lebedev, H. J. Schreiber, Alberto Aloisio, A. Ricker, Dong-Chul Son, V. Plyaskin, Martin White, D. Boutigny, C. R. Wang, J. J. Blaising, B. Bertucci, Stefano Giagu, M. Chen, M. Bourquin, Y. F. Wang, J. B. Ye, Luciano Romero, Jianming Qian, G. Hu, P. McBride, Francesco Becattini, Nicanor Colino, H. O. Cohn, C. Maña, Roberto Battiston, I. Sheer, P. A. Piroué, S. Jezequel, B. C. Riemers, U. Becker, Speranza Falciano, M. MacDermott, B. C.C. van der Zwaan, X. T. Cui, I. Vetlitsky, K. Strauch, D. Antreasyan, I. Duran, M. Brooks, M. Pohl, L. Vuilleumier, S. C. Tonwar, I. Scott, Tariq Aziz, V. R. Krastev, Frank Filthaut, G. J. Zhou, L. W. Jones, P. Duinker, U. K. Chaturvedi, Simonetta Gentile, H. Kuijten, D. S. Yan, Thomas Ferguson, S. Kirsch, R. Raghavan, A. Klimentov, A. Gougas, Kenneth Francis Read, D. Hauschildt, B. Ille, J. K. Kim, B. Borgia, Crisostomo Sciacca, Marco Pieri, S. M. Ting, C. Neyer, J. Mnich, X. W. Tang, D. P. Stickland, T. Paul, B. N. Jin, Jorg Wenninger, P. Lebrun, S. Wynhoff, G. Viertel, V. K. Gupta, F. Wittgenstein, C. F. He, V. Pojidaev, J. S. Lee, M. N. Kienzle-Focacci, R. 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J., Hangarter, K., Hartmann, B., Hasan, A., Hauschildt, D., C. F., He, J. T., He, Hebbeker, T., Hebert, M., Herve, A., Hilgers, K., Hofer, H., Hoorani, H., Hu, G., G. Q., Hu, Ille, B., Ilyas, M. M., Innocente, V., Janssen, H., Jezequel, S., Jin, B. N., Jones, L. W., Josamutuberria, I., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Khokhar, S., Kienzlefocacci, M. N., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, A., Kirkby, D., Kirsch, S., Kittel, W., Klimentov, A., Klockner, R., Konig, A. C., Koffeman, E., Kornadt, O., Koutsenko, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krastev, V. R., Krenz, W., Krivshich, A., Kuijten, H., Kumar, K. S., Kunin, A., Landi, G., Lanske, D., Lanzano, S., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, P., Lee, D. M., Lee, J. S., Lee, K. Y., Leedom, I., Leggett, C., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Li, C., H. T., Li, P. J., Li, Liao, J. Y., Lin, W. 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G., Sens, J. C., Servoli, L., Sheer, I., Shen, D. Z., Shevchenko, S., Shi, X. R., Shumilov, E., Shoutko, V., Son, D., Sopczak, A., Soulimov, V., Spartiotis, C., Spickermann, T., Spillantini, P., Starosta, R., Steuer, M., Stickland, D. P., Sticozzi, F., Stone, H., Strauch, K., Stringfellow, B. C., Sudhakar, K., Sultanov, G., Sun, L. Z., Susinno, G. F., Suter, H., Swain, J. D., Syed, A. A., Tang, X. W., Taylor, L., Terzi, G., S. 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., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, C., Wang, C. R., Wang, X. L., Wang, Y. F., Wang, Z. M., Warner, C., Weber, A., Weber, J., Weill, R., Wenaus, T. J., Wenninger, J., White, M., Willmott, C., Wittgenstein, F., Wright, D., S. X., Wu, Wynhoff, S., Wyslouch, B., Xie, Y. Y., J. G., Xu, Z. Z., Xu, Xue, Z. L., Yan, D. S., Yang, B. Z., Yang, C. G., Yang, G., C. H., Ye, J. B., Ye, Ye, Q., Yeh, S. C., Yin, Z. W., You, J. M., Yunus, N., Yzerman, M., Zaccardelli, C., Zaitsev, N., Zemp, P., Zeng, M., Zeng, Y., Zhang, D. H., Zhang, Z. P., Zhou, B., Zhou, G. J., Zhou, J. F., Zhu, R. Y., Zichichi, A., 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), Institut de Physique Nucléaire de Lyon (IPNL), 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), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), 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), L3, IHEF (IoP, FNWI), and Flores, Sylvie
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, B-MESONS, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Hadron, Elementary particle, 01 natural sciences, lcsh:QC1-999, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Particle Physics - Experiment, lcsh:Physics
Abstract: We report on inclusive chi(c) production in Z decays reconstructed via the decay mode chi(c) --> J + gamma. This analysis is based on 1.1 million hadronic Z events. Interpreting the observed signal as chi(c1), we obtain a branching ratio Br(Z --> chi(c1) + X) = (7.5 +/- 2.9(stat.) +/- 0.6(sys.)) x 10(-3). Assuming all events are produced in b decays we obtain Br(b --> chi(c1) + X) = (2.4 +/- 0.9(stat.) +/- 0.2(sys.)) x 10(-2). We also present an improved measurement of the branching ratio Br(Z --> J + X) = (3.6 +/- 0.5(stat.) +/- 0.4(sys.)) x 10(-3), obtained from dileptonic J decays.
Published: 1993

143. Dynamics of theπ−p→π0π0nReaction forpπ−<750 MeV/c

Author: M. Clajus, R. Manweiler, D. Peaslee, I. Supek, G. J. Lolos, S. N. Prakhov, W. B. Tippens, S. Stanislaus, M. E. Sadler, D. M. Manley, D. Grosnick, D. Isenhower, J. R. Comfort, N. Phaisangittisakul, S. Kruglov, K. Craig, W. J. Briscoe, B. M. K. Nefkens, D. D. Koetke, H. M. Staudenmaier, J. W. Price, A. F. Ramirez, I. V. Lopatin, A. Shafi, M. Pulver, S. McDonald, C. E. Allgower, N. S. Knecht, N. Kozlenko, H. M. Spinka, A. Marusic, E. Berger, A. Starostin, V. Bekrenev, Z. Papandreou, A. Koulbardis, J. Olmsted, and B. Draper
Subjects: Physics, Crystallography, Meson, General Physics and Astronomy, Resonance, Sensitivity (control systems)
Abstract: Data are presented for the reaction ${\ensuremath{\pi}}^{\ensuremath{-}}p\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}n$ in the range from threshold to ${p}_{{\ensuremath{\pi}}^{\ensuremath{-}}}=750\text{ }\text{ }\mathrm{M}\mathrm{e}\mathrm{V}/c$. The systematics of the data and multipole analyses are examined for sensitivity to a ${f}_{0}(600)$ (``$\ensuremath{\sigma}$'') meson. A one-pion-exchange mechanism is found to be very weak, or absent. The reaction appears to become dominated by sequential ${\ensuremath{\pi}}^{0}$ decays through the $\ensuremath{\Delta}(1232)$ resonance as the beam momentum increases, along with substantial interference effects from several competing mechanisms.
Published: 2003

144. Measurement of theπ−p→3π0ntotal cross section from threshold to0.75GeV/c

Author: N. G. Kozlenko, S. N. Prakhov, R. Manweiler, D. Grosnick, N. Phaisangittisakul, A. Starostin, D. Peaslee, K. Craig, W. B. Tippens, D. Isenhower, A. F. Ramirez, V. V. Abaev, N. Knecht, J. W. Price, J. R. Comfort, Z. Papandreou, M. Clajus, S. Kruglov, D. M. Manley, J. Olmsted, M. E. Sadler, T. D. S. Stanislaus, I. Supek, B. M. K. Nefkens, V. Bekrenev, H. M. Spinka, G. J. Lolos, C. E. Allgower, A. Koulbardis, W. J. Briscoe, A. Shafi, D. D. Koetke, H. M. Staudenmaier, I. V. Lopatin, A. Marusic, and S. McDonald
Subjects: Physics, Nuclear and High Energy Physics, Cross section (physics), Branching fraction, Resonance, Production (computer science), Atomic physics
Abstract: We report a new measurement of the ${\ensuremath{\pi}}^{\ensuremath{-}}\stackrel{\ensuremath{\rightarrow}}{p}3{\ensuremath{\pi}}^{0}n$ total cross section from threshold to ${p}_{\ensuremath{\pi}}=0.75\mathrm{GeV}/c.$ The cross section near the $N(1535){\frac{1}{2}}^{\ensuremath{-}}$ resonance is only a few $\ensuremath{\mu}\mathrm{b}$ after subtracting the large $\stackrel{\ensuremath{\rightarrow}}{\ensuremath{\eta}}3{\ensuremath{\pi}}^{0}$ background associated with ${\ensuremath{\pi}}^{\ensuremath{-}}\stackrel{\ensuremath{\rightarrow}}{p}\ensuremath{\eta}n.$ A simple analysis of our data results in the estimated branching fraction $\mathcal{B}[{S}_{11}\ensuremath{\rightarrow}\ensuremath{\pi}N(1440){\frac{1}{2}}^{+}]=(8\ifmmode\pm\else\textpm\fi{}2)%.$ This is the first such estimate obtained with a three-pion production reaction.
Published: 2003

145. Dynamics of the pi(-)p--pi(0)pi(0)n reaction for p(pi(-))750 MeV/c

Author: K, Craig, J R, Comfort, C E, Allgower, V, Bekrenev, E, Berger, W J, Briscoe, M, Clajus, B, Draper, D, Grosnick, D, Isenhower, N, Knecht, D, Koetke, A, Koulbardis, N, Kozlenko, S, Kruglov, G J, Lolos, I, Lopatin, D M, Manley, R, Manweiler, A, Marusić, S, McDonald, B M K, Nefkens, J, Olmsted, Z, Papandreou, D, Peaslee, N, Phaisangittisakul, S, Prakhov, J W, Price, M, Pulver, A F, Ramirez, M E, Sadler, A, Shafi, H, Spinka, S, Stanislaus, A, Starostin, I, Supek, H M, Staudenmaier, and W B, Tippens
Abstract: Data are presented for the reaction pi(-)p--pi(0)pi(0)n in the range from threshold to p(pi(-))=750 MeV/c. The systematics of the data and multipole analyses are examined for sensitivity to a f(0)(600) ("sigma") meson. A one-pion-exchange mechanism is found to be very weak, or absent. The reaction appears to become dominated by sequential pi(0) decays through the Delta(1232) resonance as the beam momentum increases, along with substantial interference effects from several competing mechanisms.
Published: 2003

146. Measurement of the Pi^- p -> 3 Pi^0 n Total Cross-Section From Threshold to 0.75 GeV/c

Author: Starostin, A., Nefkens, B.M.K., Manley, D.M., Abaev, V.V., Allgower, C.E., Bekrenev, V., Briscoe, W.J., Clajus, M., Comfort, J.R., Craig, K., Grosnic, D., Isenhower, D., Knecht, N., Koetke, D.D., Koulbardis, A.A. Kozlenko, N.G., Kruglov, S., Lolos, G., Lopatin, I.V., Manweiler, R., Marusic, Aljosa, McDonald, S., Olmsted, J., Papandreou, Z., Peaslee, D.C., Phaisangittisakul, N., Prakhov, S., Price, J.W., Ramirez, A.F., Sadler, M., Shafi, A., Spinka, H., Stanislaus, T.D.S., Staudenmaier, H.M., Supek, Ivan, and Tippens, W.B.
Subjects: cross section
Abstract: We report a new measurement of the pi(-)p-->3pi(0)n total cross section from threshold to p(pi)=0.75 GeV/c. The cross section near the N(1535)1/2(-) resonance is only a few mub after subtracting the large eta-->3pi(0) background associated with pi(-)p-->etan. A simple analysis of our data results in the estimated branching fraction B[S-11-->piN(1440)1/2(+)]=(8+/-2)%. This is the first such estimate obtained with a three-pion production reaction.
Published: 2003

147. Dynamics of the Pi^- p -> Pi^0 Pi^0 n Reaction for P_pi- < 750 MeV/c

Author: Craig, K., Comfort, J.R., Allgower, C.E., Bekrenev, V., Berger, E., Briscoe, W.J., Clajus, M., Draper, D., Grosnick, D., Huber, G.M., Isenhower, D., Knecht, N., Koetke, D., Koulbardis, A., Kozlenko, N., Kruglov, S., Lolos, G., Lopatin, I., Manley, D.M., Manweiler, R., Marusic, Aljosa, McDonald, S., Nefkens, B.M.K., Olmsted, J., Papandreou, Z., Peaslee, D., Phaisangittisakul, N., Prakhov, S., Price, J.M., Pulver, M., Ramirez, A.F., Sadler, M., Shafi, A., Spinka, H., Stanislaus, T.D.S., Starostin, A., Staudenmaier, H.M., Supek, Ivan, and Tippens, W.B.
Subjects: Nuclear Experiment, multipole analyses
Abstract: Data are presented for the reaction pi^-p->pi^0pi^0n in the range from threshold to p_pi^-= 750 MeV/c. The systematics of the data and multipole analyses are examined for sensitivity to a f_0(600) ("sigma") meson. A one-pion-exchange mechanism is found to be very weak, or absent. The reaction appears to become dominated by sequential pi^0 decays through the Delta(1232) resonance as the beam momentum increases, along with substantial interference effects from several competing mechanisms.
Published: 2003

148. Search for K^- P -> Pi^0 Pi^0 Pi^0 Lambda from Threshold to P_K^- = 750 MeV/c

Author: Borgh, M., Prakhov, S., Nefkens, B.M.K., Allgower, C.E., Bekrenev, V., Briscoe, W.J., Clajus, M., Comfort, J.R., Craig, K., Grosnick, D., Isenhower, D., Knecht, N., Koetke, D., Koulbardis, A., Kozlenko, N., Kruglov, S., Lolos, G., Lopatin, I., Manley, D.M., Manweiler, R., Marusic, A., McDonald, S., Olmsted, J., Papandreou, Z., Peaslee, D., Phaisangittisakul, N., Price, J.W., Ramirez, A.F., Sadler, M., Shafi, A., Spinka, H., Stanislaus, T.D.S., Starostin, A., Staudenmaier, H.M., Supek, Ivan, and Tippens, W.B.
Subjects: crystal ball
Abstract: The results of a search for K^- p->pi^0pi^0pi^0 Lambda(where the 3pi^0's are not from eta-meson decay) are presented. The data were obtained with the Crystal Ball spectrometer at eight beam momenta from 514 to 750 MeV/c. For the six beam momenta below p_K^- = 714 MeV/c, no signal was found the 90% C.L. upper limit obtained for the K^- p->3pi^0 Lambda total cross section sigma_t varies between 2 and 7 &micro ; ; b. This small upper limit is indicative that spontaneous pi^0 emission is insignificant, since the K^- p->pi^0pi^0pi^0 Lambda threshold is at p_K^- = 397 MeV/c. A signal was observed only at p_K^- = 750 MeV/c, with sigma_t = 25&plusmn ; ; 7 &micro ; ; b. These results can be explained only if triple pi^0 production goes predominantly by hyperon resonance deexcitation, K^- p->Sigma*->pi^0Lambda^*. There are several candidates for the Sigma^* but only one for the Lambda^*, namely, the Lambda(1520)3/2^-, as the threshold for K^- p->pi^0 Lambda(1520) is at p_K^- = 704 MeV/c.
Published: 2003

149. Measurement of the Total and Differential Cross Sections for the Reaction Pi^- p -> Eta N with the Crystal Ball Detector

Author: R. V. Cadman, M. Clajus, S. P. Kruglov, A. Shafi, A. Starostin, G. J. Lolos, N. Phaisangittisakul, K. Craig, D. D. Koetke, H. M. Staudenmaier, S. McDonald, W. B. Tippens, D. Grosnic, Z. Papandreou, N. Knecht, A. Marušić, J. W. Price, I. Supek, D. Isenhower, A. Gibson, H. M. Spinka, V. V. Abaev, D. M. Manley, C. E. Allgower, I. V. Lopatin, J. Peterson, T. F. Kycia, Ivo Šlaus, A. Koulbardis, S. Hayden, A. F. Ramirez, W. J. Briscoe, I. I. Strakovsky, J. Olmsted, N. G. Kozlenko, B. M. K. Nefkens, J. Huddleston, R. Manweiler, S. N. Prakhov, B. Draper, D. Peaslee, J. R. Comfort, C. Robinson, M. E. Sadler, S. Stanislaus, and V.S. Bekrenev
Subjects: Physics, Nuclear and High Energy Physics, Meson, Scattering, Hadron, Nuclear Theory, Elementary particle, Atomic and Molecular Physics, and Optics, Nuclear physics, Momentum, Pion, cross section, pion, eta, Atomic physics, Nuclear Experiment, Crystal Ball, Boson
Abstract: The first results obtained in 1998 by the Crystal Ball collaboration from a measurement of the total and differential cross sections for the reaction pi(-)p --> etan are presented.These new experimental results for the total cross sections are compared with the predictions of the K-matrix model for pion- nucleon scattering.The angular distribution at momenta near the reaction threshold (685 MeV/c) is determined by the S-wave contribution.The P-wave contribution begins to manifest itself from a momentum of 720 MeV/c.
Published: 2003

150. Crystal Ball Results: π --Interactions on Hydrogen and Nuclear Targets

Author: Staudenmaier, H.M., Nefkens, B.M.K., Starostin, A., Clajus, M., Marušić, Aljoša, McDonald, S., Phaisangittisakul, N., Prakhov, S., Price, J.W., Tippens, W., Eisenhower, D., Sadler, M., Allgower, C., Spinka, H., Comfort, J., Craig, K., Ramirez, T., Kycia, T., Petersen, R., Briscoe, W., Shafi, A., Manley, D.M., Olmsted, J., Peaslee, D., Bekrenev, V., Koulbardis, A., Kozlenko, N., Kruglov, S., Lopatin, I., Huber, G.M., Lolos, G.J., Papandreou, Z., Šlaus, Ivo, Supek, Ivan, Grosnick, D., Koetke, D., Manweiler R., and Stanislaus, S.
Subjects: pi interaction, eta production on nuclear targets
Abstract: Crystal Ball Collaboration results concerning π 0π 0 and η production on hydrogen and 3 nuclear targets are reported. A possible existence of a σ -resonance, medium effects and final state interactions are subjects of this contribution
Published: 2003

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