| Autor: |
Acciarri, M., Achard, P., Adriani, O., Aguilar-Benitez, M., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, A., Alviggi, M.G., Ambrosi, G., Anderhub, H., Andreev, Valery P., Angelescu, T., Anselmo, F., Arefev, A., Azemoon, T., Aziz, T., Bagnaia, P., Bajo, A., Baksay, L., Balandras, A., Baldew, S.V., Banerjee, S., Banerjee, Sw., Barczyk, A., Barillere, R., Bartalini, P., Basile, M., Batalova, N., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Bellucci, L., Berbeco, R., Berdugo, J., Berges, P., Bertucci, B., Betev, B.L., Bhattacharya, S., Biasini, M., Biland, A., Blaising, J.J., Blyth, S.C., Bobbink, G.J., Bohm, A., Boldizsar, L., Borgia, B., Bourilkov, D., Bourquin, M., Braccini, S., Branson, J.G., Brochu, F., Buffini, A., Buijs, A., Burger, J.D., Burger, W.J., Cai, X.D., Capell, M., Cara Romeo, G., 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., Chemarin, M., Chen, A., Chen, G., Chen, G.M., Chen, H.F., Chen, H.S., Chiefari, G., Cifarelli, L., Cindolo, F., Civinini, C., Clare, I., Clare, R., Coignet, G., Colino, N., Costantini, S., Cotorobai, F., de la Cruz, B., Csilling, A., Cucciarelli, S., Dai, T.S., van Dalen, J.A., D'Alessandro, R., de Asmundis, R., Deglon, P., Degre, A., Deiters, K., della Volpe, D., Delmeire, E., Denes, P., DeNotaristefani, F., De Salvo, A., Diemoz, M., Dierckxsens, M., van Dierendonck, D., Dionisi, C., Dittmar, M., Dominguez, A., Doria, A., Dova, M.T., Duchesneau, D., Dufournaud, D., Duinker, P., Duran, I., El Mamouni, H., Engler, A., Eppling, F.J., Erne, F.C., Ewers, A., Extermann, P., Fabre, M., Falagan, M.A., Falciano, S., Favara, A., Fay, J., Fedin, O., Felcini, M., Ferguson, T., Fesefeldt, H., Fiandrini, E., Field, J.H., Filthaut, F., Fisher, P.H., Fisk, I., Forconi, G., Freudenreich, K., Furetta, C., Galaktionov, Iouri, Ganguli, S.N., Garcia-Abia, Pablo, Gataullin, M., Gau, S.S., Gentile, S., Gheordanescu, N., Giagu, S., Gong, Z.F., Grenier, Gerald Jean, Grimm, O., Gruenewald, M.W., Guida, M., van Gulik, R., Gupta, V.K., Gurtu, A., Gutay, L.J., Haas, D., Hasan, A., Hatzifotiadou, D., Hebbeker, T., Herve, Alain, Hidas, P., Hirschfelder, J., Hofer, H., Holzner, G., Hoorani, H., Hou, S.R., Hu, Y., Iashvili, I., Jin, B.N., Jones, Lawrence W., de Jong, P., Josa-Mutuberria, I., Khan, R.A., Kafer, D., Kaur, M., Kienzle-Focacci, M.N., Kim, D., Kim, J.K., Kirkby, Jasper, Kiss, D., Kittel, W., Klimentov, A., Konig, A.C., Kopal, M., Kopp, A., Koutsenko, V., Kraber, M., Kraemer, R.W., Krenz, W., Kruger, A., Kunin, A., Ladron de Guevara, P., Laktineh, I., Landi, G., Lebeau, M., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Le Coultre, P., Lee, H.J., Le Goff, J.M., Leiste, R., Levtchenko, P., Li, C., Likhoded, S., Lin, C.H., Lin, W.T., Linde, F.L., Lista, L., Liu, Z.A., Lohmann, W., Longo, E., Lu, Y.S., Lubelsmeyer, K., Luci, C., Luckey, David, Lugnier, L., Luminari, L., Lustermann, W., Ma, W.G., Maity, M., Malgeri, L., Malinin, A., Mana, C., Mangeol, D., Mans, J., Marian, G., Martin, J.P., Marzano, F., Mazumdar, K., McNeil, R.R., Mele, S., Merola, L., Meschini, M., Metzger, W.J., von der Mey, M., Mihul, A., Milcent, H., Mirabelli, G., Mnich, J., Mohanty, G.B., Moulik, T., Muanza, G.S., Muijs, A.J.M., Musicar, B., Musy, M., Napolitano, M., Nessi-Tedaldi, F., Newman, H., Niessen, T., Nisati, A., Kluge, Hannelies, Ofierzynski, R., Organtini, G., Oulianov, A., Palomares, C., Pandoulas, D., Paoletti, S., Paolucci, P., Paramatti, R., Park, H.K., Park, I.H., Passaleva, G., Patricelli, S., Paul, Thomas Cantzon, Pauluzzi, M., Paus, C., Pauss, F., Pedace, M., Pensotti, S., Perret-Gallix, D., Petersen, B., Piccolo, D., Pierella, F., Pieri, M., Piroue, P.A., Pistolesi, E., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Pothier, J., Prokofev, D.O., Prokofiev, D., Quartieri, J., Rahal-Callot, G., Rahaman, M.A., Raics, P., Raja, N., Ramelli, R., Rancoita, P.G., Ranieri, R., Raspereza, A., Raven, G., Razis, P., Ren, D., Rescigno, M., Reucroft, S., Riemann, S., Riles, Keith, Rodin, J., Roe, B.P., Romero, L., Rosca, A., Rosier-Lees, S., Roth, Stefan, Rosenbleck, C., Rubio, J.A., Ruggiero, G., Rykaczewski, H., Saremi, S., Sarkar, S., Salicio, J., Sanchez, E., Sanders, M.P., Schafer, C., Schegelsky, V., Schmidt-Kaerst, S., Schmitz, D., Schopper, H., Schotanus, D.J., Schwering, G., Sciacca, C., Seganti, A., Servoli, L., Shevchenko, S., Shivarov, N., Shoutko, V., Shumilov, E., Shvorob, A., Siedenburg, T., Son, D., Smith, B., Spillantini, P., Steuer, M., Stickland, D.P., Stone, A., Stoyanov, B., Straessner, A., Sudhakar, K., Sultanov, G., Sun, L.Z., Sushkov, S., Suter, H., Swain, J.D., Szillasi, Z., Sztaricskai, T., Tang, X.W., Tauscher, L., Taylor, L., Tellili, B., Timmermans, Charles, Ting, Samuel C.C., Ting, S.M., Tonwar, S.C., Toth, J., Tully, C., Tung, K.L., Uchida, Y., Ulbricht, J., Valente, E., Vesztergombi, G., Vetlitsky, I., Vicinanza, D., Viertel, G., Villa, S., Vivargent, M., Vlachos, S., Vodopianov, I., Vogel, H., Vogt, H., Vorobev, I., Vorobov, A.A., Vorvolakos, A., Wadhwa, M., Wallraff, W., Wang, M., Wang, X.L., Wang, Z.M., Weber, A., Weber, M., Wienemann, P., Wilkens, H., Wu, S.X., Wynhoff, S., Xia, L., Xu, Z.Z., Yamamoto, J., Yang, B.Z., Yang, C.G., Yang, H.J., Yang, M., Ye, J.B., Yeh, S.C., Zalite, An., Zalite, Yu., Zhang, Z.P., Zhu, G.Y., Zhu, R.Y., Zichichi, A., Zilizi, G., Zimmermann, B., Zoller, M. |
| Přispěvatelé: |
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 |
| Jazyk: |
angličtina |
| Rok vydání: |
2001 |
| Předmět: |
|
| Zdroj: |
Physics Letters B
Physics Letters B, Elsevier, 2001, 503, pp.10-20 |
| ISSN: |
0370-2693 |
| Popis: |
The production of c and b quarks in gamma-gamma collisions is studied with the L3 detector at LEP with 410 pb^-1 of data, collected at centre-of-mass energies from 189 GeV to 202 GeV. Hadronic final states containing c and b quarks are identified by detecting electrons or muons from their semileptonic decays. The cross sections sigma(e+e- -> e+e- c c~ X) and sigma(e+e- -> e+e- b b~ X) are measured and compared to next-to-leading order perturbative QCD calculations. The cross section of b production is measured in gamma-gamma collisions for the first time. It is in excess of the QCD prediction by a factor of three. The production of c and b quarks γγ collisions is studied with the L3 detector at LEP with 410 pb −1 of data, collected at centre-of-mass energies from 189 GeV to 202 GeV. Hadronic final states containing c and b quarks are identified by detecting electrons or muons from their semileptonic decays. The cross sections σ( e + e − → e + e − c c ̄ X ) and σ( e + e − → e + e − b b ̄ X ) are measured and compared to next-to-leading order perturbative QCD calculations. The cross section of b production is measured in γγ collisions for the first time. It is in excess of the QCD prediction by a factor of three. The production of c and b quarks in gamma-gamma collisions is studied with the L3 detector at LEP with 410 pb^-1 of data, collected at centre-of-mass energies from 189 GeV to 202 GeV. Hadronic final states containing c and b quarks are identified by detecting electrons or muons from their semileptonic decays. The cross sections sigma(e+e- -> e+e- c c~ X) and sigma(e+e- -> e+e- b b~ X) are measured and compared to next-to-leading order perturbative QCD calculations. The cross section of b production is measured in gamma-gamma collisions for the first time. It is in excess of the QCD prediction by a factor of three. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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Full Text from ScienceDirect 