1. Study of hadronic events and measurements of αs between 30 and 91 GeV
- Author
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F. Wittgenstein, Sc Yeh, L. Romero, E. Drago, E. Valente, Wt Lin, R. Ostonen, A. Marin, M. Bourquin, K. Strauch, D. McNally, R. Leiste, Joachim Mnich, L. J. Gutay, U. Becker, Y. J. Pei, P. Extermann, Salvatore Mele, D. Ruschmeier, Christoph Paus, A. Robohm, Christoph Schäfer, B. Z. Yang, H. Hofer, M. W. Gruenewald, G. Viertel, C-Q. Li, I. Josa-Mutuberria, K. L. Tung, Konrad Deiters, V. K. Gupta, W. van Rossum, B. Monteleoni, P. Rosselet, Peter Denes, I. Duran, B. Fenyi, Paolo Bagnaia, Hans J. Vogel, S. C. Blyth, Marco Meschini, D. Kirkby, S. Morganti, Alberto Aloisio, Christopher George Tully, Wolfgang Lohmann, H. Vogt, B. Bertucci, F. Anselmo, Nicanor Colino, A. Barczyk, Y. Zhou, A. Kunin, T. Moulik, Hafeez R Hoorani, F. J. Eppling, L. W. Jones, J. Schwenke, Adrian Biland, A. Gurtu, W. Lu, Federico Cindolo, F. DeNotaristefani, S. Costantini, S. Mangla, Marco Pieri, S. M. Ting, S. J. Hong, S. C. Tonwar, W. C. van Hoek, Frank Filthaut, Thomas Ferguson, Yu. Galaktionov, Y. G. Kim, Y. H. Chang, J. Alcaraz, S. Bhattacharya, Y. Uchida, D. P. Stickland, F. Ziegler, X. W. Tang, Pierluigi Paolucci, H. El Mamouni, P. Lebrun, J. M. You, Howard A. Stone, W. J. Metzger, P. A. Piroué, F. Di Lodovico, S. Goldfarb, Francesca Nessi-Tedaldi, George Alverson, Egidio Longo, H. Tuchscherer, M. P. Sanders, B. L. Betev, B. Zhou, L. Z. Sun, M. Campanelli, J. D. Burger, T. Siedenburg, G. Rahal-Callot, N. Raja, Tariq Aziz, A. Engler, Manas Maity, M. Acciarri, J. S. Kapustinsky, T. Niessen, P. Berges, Steve Nahn, J. P. Ernenwein, Samuel C.C. Ting, P. Duinker, I. Korolko, M. Capell, S. X. Wu, H. S. Fesefeldt, E. Pistolesi, Simonetta Gentile, Guo-Ming Chen, Roberto Battiston, F. C. Erné, A. Mihul, G. Alemanni, A. Klimentov, P. Schmitz, A. M. Cartacci, A. C. König, Andre Sopczak, Marcella Diemoz, L. Cifarelli, K. Jenkes, H. Suter, H. Janssen, Kenneth Francis Read, U. Uwer, A. Chen, D. van Dierendonck, Joel Goldstein, M. Schneegans, Maurizio Biasini, M. Vivargent, K. Freudenreich, Vincenzo Innocente, Oleg Fedin, A. Lebedev, Dong-Chul Son, A. Boucham, C. Dionisi, D. DiBitonto, Gerjan Bobbink, B. Borgia, J. Salicio, M. Steuer, Marta Felcini, Gobinda Majumder, J. J. Blaising, Francesco Becattini, A. Favara, I. H. Park, W. W. Kinnison, Pablo Garcia-Abia, Alain Hervé, Stefano Giagu, Z. Z. Xu, C. H. Lin, V. Pojidaev, Bryan R. Smith, S. Easo, Kati Lassila-Perini, V. Plyaskin, An.A. Vorobyov, A. Bay, W. Kittel, F. Muheim, Y. D. Oh, G. Gratta, J. Ulbricht, C. Maña, I. C. Brock, Crisostomo Sciacca, Carlo Civinini, K. Banicz, S. S. Gau, D. Perret-Gallix, V. Koutsenko, O. Adriani, H. Anderhub, G. Raven, P. Bartalini, Raffaello D'Alessandro, Lucas Taylor, M. G. Alviggi, U. K. Chaturvedi, C. Palomares, Leonardo Merola, I. Vetlitsky, C. Lapoint, K. Sudhakar, M. von der Mey, M. Aguilar-Benitez, Herwig Schopper, H. Postema, A. Arefiev, Yu. Efremenko, G. Carlino, Y. S. Lu, A. Shvorob, A. Straessner, Luca Lista, S. Wynhoff, V. Soulimov, L. Tauscher, F. Ferroni, Y. Zeng, Juven Wang, I. Dome, J. B. Ye, T. Azemoon, A. Nippe, S. Braccini, T. Angelescu, K. Riles, J. H. Field, Sabine Riemann, C. Y. Chien, P. Marchesini, V. Brigljevic, T. Paul, B. De La Cruz, Y. P. Andreev, I. Clare, G. Passaleva, G. M. Bilei, Alexander Malinin, G. Hu, W. J. Burger, F. Marzano, A. Kirkby, G. Coignet, J. Casaus, S. P. Ahlen, W. Krenz, M. Fabre, A. Kasser, Marcos Cerrada, Y. Mi, P. Zemp, G. Schwering, R. de Asmundis, P. Laurikainen, B. Stoyanov, S. Schmidt-Kaerst, I. Fisk, Speranza Falciano, M. Lebeau, R. Mount, Nicola Cavallo, C. G. Yang, Yu. Zalite, G. F. Susinno, Ren-Yuan Zhu, Luciano Barone, C. Furetta, J. G. Branson, R. T. Van de Walle, H. K. Park, S. V. Chekanov, T. van Rhee, J. C. Pinto, G. Forconi, Davide Piccolo, Dong-Hyun Kim, G. Castellini, J.V. Allaby, S. Patricelli, S. N. Ganguli, M. T. Dova, An. Zalite, V. Commichau, A. Degré, Z. F. Gong, D. Hatzifotiadou, J. Rodin, H. Opitz, Laszlo Boldizsar, B. Hartmann, A. Hasan, Jozsef Toth, Y. Kamyshkov, H. O. Cohn, M. Rattaggi, L. Fredj, L. Malgeri, M. N. Kienzle-Focacci, Zheng Wang, Zhenyu Zhang, A. Csilling, R. Barillère, G. Cara Romeo, B. P. Roe, C. Cecchi, Subir Sarkar, D. O. Prokofiev, M. E. Sarakinos, Jasper Kirkby, M. Sassowsky, A. J.W. van Mil, Anna Katharina Kopp, M. Pohl, S. Reucroft, P. Ladron de Guevara, A. Gougas, Z. A. Liu, A. Vorvolakos, X. Y. Yao, J. G. Xu, S. Baneqee, Stefan Roth, J. M. Le Goff, N. Gheordanescu, J. A. Rubio, Peter H. Fisher, Aleandro Nisati, A. C. Weber, O. Rind, Aaron Dominguez, X. D. Cai, Alessandra Doria, Felicitas Pauss, S. Müller, S. Rosier-Lees, S. C. Kim, P. G. Rancoita, G. Mirabelli, P. Le Coultre, M. Basile, B. N. Jin, K. Lübelsmeyer, H. Nowak, N. Scholz, F. Cesaroni, M. Chamizo, A. Buffini, S. R. Hou, Lamberto Luminari, M. Wadhwa, D. J. Schotanus, D. Mangeol, J. K. Kim, W. Wallraff, D. Luckey, R. C. Ball, Pierre Lecomte, D.W. Schmitz, G. Pascale, P. de Jong, N. Shivarov, Claudio Luci, Werner Lustermann, D. Pandoulas, Emilio Leonardi, Michael Dittmar, Zp Zhang, J. D. Swain, D. Kiss, D. Peach, A. Böhm, Robert Clare, G. Ambrosi, M. Rescigno, R. Bock, D. Sciarrino, Roger Moore, W. G. Ma, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, Georgi Sultanov, Fl Linde, T. S. Dai, P. Molnar, R. A. Khan, M. Napolitano, S. Petrak, L. Baksay, F. Cotorobai, H. F. Chen, D. Duchesneau, H. S. Chen, D. Kamrad, L. Servoli, M. Chemarin, G. Chiefari, S. Shevchenko, G. Landi, G. M. Chen, F. Behner, Andrea Baschirotto, Simone Paoletti, Suchandra Dutta, A. J.M. Muijs, Manjit Kaur, Dimitri Bourilkov, P. Spillantini, B. Petersen, A. Buijs, E. Fiandrini, Gyorgy Vesztergombi, A. Pevsner, S. Pensotti, Valery Schegelsky, Antonino Zichichi, H. Rykaczewski, Giovanni Organtini, Jean Fay, D. Boutigny, G. Sauvage, Nicolas Produit, Harvey B Newman, J. Busenitz, Mingshui Chen, J. Gerald, R. Faccini, X. L. Wang, G. G.G. Massaro, M. Pauluzzi, D. Ren, J. Shukla, A. P. Colijn, Igor Vorobiev, P. Levtchenko, Panos A Razis, Y. Karyotakis, J. Berdugo, E. J. Sanchez, Francesca Cavallari, C. Leggett, J. P. Martin, G. Y. Zhu, E. Shumilov, D. H. Kim, V. Shoutko, R. Völkert, M. Tonutti, Acciarri, M., Adriani, O., Aguilarbenitez, M., Ahlen, S., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., Anderhub, H., Andreev, V. P., Angelescu, T., Anselmo, F., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Baksay, L., Ball, R. C., Banerjee, S., Banicz, K., Barczyk, A., 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., Bhattacharya, S., Biasini, M., Biland, A., Bilei, G. M., Blaising, J. J., Blyth, S. C., Bobbink, G. J., Bock, R., Bohm, A., Boldizsar, L., Borgia, B., Boucham, A., Bourilkov, D., Bourquin, M., Boutigny, D., Braccini, S., Branson, J. G., Brigljevic, V., Brock, I. C., Buffini, A., Buijs, A., Burger, J. D., Burger, W. J., Busenitz, J., Cai, X. D., Campanelli, M., Capell, M., Romeo, G. C., Carlino, G., Cartacci, A. M., Casaus, J., Castellini, G., Cavallari, F., Cavallo, N., Cecchi, C., Cerrada, M., Cesaroni, F., Chamizo, M., Chang, Y. H., Chaturvedi, U. K., Chekanov, S. V., Chemarin, M., Chen, A., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chiefari, Giovanni, Chien, C. Y., 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., Csilling, A., Dai, T. S., Dalessandro, R., Deasmundis, R., 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., Fedin, O., Felcini, M., Fenyi, B., Ferguson, T., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Fisk, I., Forconi, G., Fredj, L., Freudenreich, K., Furetta, C., 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., Gougas, A., Gratta, G., Gruenewald, M. W., Gupta, V. K., Gurtu, A., Gutay, L. J., Hartmann, B., Hasan, A., Hatzifotiadou, D., Hebbeker, T., Herve, A., Vanhoek, W. C., Hofer, H., Hong, S. J., Hoorani, H., Hou, S. R., Hu, G., Innocente, V., Janssen, H., Jenkes, K., Jin, B. N., Jones, L. W., Dejong, P., Josamutuberria, I., Kasser, A., Khan, R. A., Kamrad, D., Kamyshkov, Y., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Kienzlefocacci, M. N., Kim, D., Kim, D. H., 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., Kopp, A., Korolko, I., Koutsenko, V., Kraemer, R. W., Krenz, W., 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., Leggett, C., Legoff, J. M., Leiste, R., Leonardi, E., Levtchenko, P., Li, C., Lin, C. H., 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., Luminari, L., Lustermann, W., W. G., Ma, Maity, M., Majumder, G., Malgeri, L., Malinin, A., Mana, C., Mangeol, D., Mangla, S., Marchesini, P., Marin, A., Martin, J. P., Marzano, F., G. G. G., Mcnally, D., Mele, S., Merola, Leonardo, Meschini, M., Metzger, W. J., Vondermey, M., Mi, Y., Mihul, A., A. J. W., Mirabelli, G., Mnich, J., Molnar, P., Monteleoni, B., Moore, R., Morganti, S., Moulik, T., Mount, R., Muller, S., Muheim, F., A. J. M., Nahn, S., Napolitano, Marco, Nessitedaldi, F., Newman, H., Niessen, T., Nippe, A., Nisati, A., Nowak, H., Y. D., Oh, Opitz, H., Organtini, G., Ostonen, R., Palomares, C., Pandoulas, D., Paoletti, S., Paolucci, P., Park, H. K., Park, L. H., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Peach, D., Pei, Y. J., Pensotti, S., Perretgallix, D., Petersen, B., 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., Prokofiev, D., Rahalcallot, G., Raja, N., Rancoita, P. G., Rattaggi, M., Raven, G., Razis, P., Read, K., Ren, D., Rescigno, M., Reucroft, S., Vanrhee, T., Riemann, S., Riles, K., Rind, O., Robohm, A., Rodin, J., Roe, B. P., Romero, L., Rosierlees, S., Rosselet, P., Vanrossum, W., Roth, S., Rubio, J. A., Ruschmeier, D., Rykaczewski, H., Salicio, J., Sanchez, E., Sanders, M. P., Sarakinos, M. E., Sarkar, S., Sassowsky, M., Sauvage, G., Schafer, C., Schegelsky, V., Schmidtkaerst, S., Schmitz, D., Schmitz, P., Schneegans, M., Scholz, N., Schopper, H., Schotanus, D. J., Schwenke, J., Schwering, G., Sciacca, Crisostomo, Sciarrino, D., Servoli, L., Shevchenko, S., Shivarov, N., Shoutko, V., Shukla, J., Shumilov, E., Shvorob, A., Siedenburg, T., Son, D., Sopczak, A., Soulimov, V., Smith, B., Spillantini, P., Steuer, M., Stickland, D. P., 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., Tonutti, M., Tonwar, S. C., Toth, J., Tully, C., Tuchscherer, H., Tung, K. L., Uchida, Y., 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, 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., Zalite, A., Zalite, Y., Zemp, P., Zeng, Y., Zhang, Z., Zhang, Z. P., Zhou, B., Zhou, Y., Zhu, G. Y., Zhu, R. Y., Zichichi, A., Ziegler, F., Ambrosi, Giovanni, Bourquin, Maurice, Braccini, Saverio, Burger, William, Paus-Cecchi, Claudia, Extermann, Pierre, Field, John, Fredj, Lotfi, Kienzle, Maria-Novella, Muheim, Franz, Produit, Nicolas, Sciarrino, Deborah, Susinno, Gabriele, 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 LEP (IHEF, IoP, FNWI)
- Subjects
Nuclear and High Energy Physics ,Particle physics ,Photon ,ENERGIES ,hadronic events ,Electron–positron annihilation ,Monte Carlo method ,Hadron ,ddc:500.2 ,01 natural sciences ,Nuclear physics ,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) ,Ciencias Exactas ,L3 EXPERIMENT ,Physics ,Quantum chromodynamics ,Range (particle radiation) ,010308 nuclear & particles physics ,High Energy Physics::Phenomenology ,Física ,LEP ,RESONANCE ,E+E-ANNIHILATION ,JET STRUCTURE ,isolated photon ,L3 detector ,QCD MODELS ,High Energy Physics::Experiment ,EMISSION ,Event (particle physics) ,Energy (signal processing) ,Particle Physics - Experiment - Abstract
We have studied the structure of hadronic events with a hard, isolated photon in the final state (e+e− → Z → hadrons + γ) in the 3.6 million hadronic events collected with the L3 detector at centre-of-mass energies around 91 GeV. The centre-of-mass energy of the hadronic system is in the range 30 GeV to 86 GeV. Event shape variables have been measured at these reduced centre-of-mass energies and have been compared with the predictions of different QCD Monte Carlo programs. The event shape variables and the energy dependence of their mean values are well reproduced by QCD models. We fit distributions of several global event shape variables to resummed O(αs2) calculations to determine the strong coupling constant αs over a wide range of energies. We find that the strong coupling constant αs decreases with increasing energy, as expected from QCD., Facultad de Ciencias Exactas
- Published
- 1997