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Measurement of exclusive $\rho^{+}\rho^{-}$ production in mid-virtuality two-photon interactions and study of the $\gamma \gamma^{*} \to \rho\rho$ process at LEP

Exclusive rho+rho- production in two-photon collisions between a quasi-real photon, gamma, and a mid-virtuality photon, gamma*, is studied with data collected at LEP at centre-of-mass energies root(s)=183-209GeV with a total integrated luminosity of 684.8pb^-1. The cross section of the gamma gamma*...

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Detalles Bibliográficos
Autores principales: Achard, P., Adriani, O., Aguilar-Benitez, M., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, A., Alviggi, M.G., Anderhub, H., Andreev, Valery P., Anselmo, F., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Bajo, A., Baksay, G., Baksay, L., 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., Biasini, M., Biglietti, M., Biland, A., Blaising, J.J., Blyth, S.C., Bobbink, G.J., Bohm, A., Boldizsar, L., Borgia, B., Bottai, S., Bourilkov, D., Bourquin, M., Braccini, S., Branson, J.G., Brochu, F., Burger, J.D., Burger, W.J., Cai, X.D., Capell, M., Cara Romeo, G., Carlino, G., Cartacci, A., Casaus, J., Cavallari, F., Cavallo, N., Cecchi, C., Cerrada, M., Chamizo, M., Chang, Y.H., Chemarin, M., Chen, A., Chen, G., Chen, G.M., Chen, H.F., Chen, H.S., Chiefari, G., Cifarelli, L., Cindolo, F., Clare, I., Clare, R., Coignet, G., Colino, N., Costantini, S., de la Cruz, B., Cucciarelli, S., de Asmundis, R., Deglon, P., Debreczeni, J., Degre, A., Dehmelt, K., Deiters, K., della Volpe, D., Delmeire, E., Denes, P., DeNotaristefani, F., De Salvo, A., Diemoz, M., Dierckxsens, M., Dionisi, C., Dittmar, M., Doria, A., Dova, M.T., Duchesneau, D., Duda, M., Echenard, B., Eline, A., El Hage, A., El Mamouni, H., Engler, A., Eppling, F.J., Extermann, P., 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., Fisher, W., Fisk, I., Forconi, G., Freudenreich, K., Furetta, C., Galaktionov, Iouri, Ganguli, S.N., Garcia-Abia, Pablo, Gataullin, M., Gentile, S., Giagu, S., Gong, Z.F., Grenier, Gerald Jean, Grimm, O., Gruenewald, M.W., Guida, M., Gupta, V.K., Gurtu, A., Gutay, L.J., Haas, D., Hatzifotiadou, D., Hebbeker, T., Herve, Alain, Hirschfelder, J., Hofer, H., Hohlmann, M., Holzner, G., Hou, S.R., Jin, B.N., Jindal, P., Jones, Lawrence W., de Jong, P., Josa-Mutuberria, I., Kaur, M., Kienzle-Focacci, M.N., Kim, J.K., Kirkby, Jasper, Kittel, W., Klimentov, A., Konig, A.C., Kopal, M., Koutsenko, V., Kraber, M., Kraemer, R.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., Le Goff, J.M., Leiste, R., Levtchenko, M., 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., Luci, C., Luminari, L., Lustermann, W., Ma, W.G., Malgeri, L., Malinin, A., Mana, C., Mans, J., Martin, J.P., Marzano, F., Mazumdar, K., McNeil, R.R., Mele, S., Merola, L., Meschini, M., Metzger, W.J., Mihul, A., Milcent, H., Mirabelli, G., Mnich, J., Mohanty, G.B., Muanza, G.S., Muijs, A.J.M., Musicar, B., Musy, M., Nagy, S., Natale, S., Napolitano, M., Nessi-Tedaldi, F., Newman, H., Nisati, A., Novak, T., Kluge, Hannelies, Ofierzynski, R., Organtini, G., Pal, I., Palomares, C., Paolucci, P., Paramatti, R., Passaleva, G., Patricelli, S., Paul, Thomas Cantzon, Pauluzzi, M., Paus, C., Pauss, F., Pedace, M., Pensotti, S., Perret-Gallix, D., Piccolo, D., Pierella, F., Pioppi, M., Piroue, P.A., Pistolesi, E., Plyaskin, V., Pohl, M., Pojidaev, V., Pothier, J., Prokofiev, D., Rahal-Callot, G., Rahaman, Mohammad Azizur, Raics, P., Raja, N., Ramelli, R., Rancoita, P.G., Ranieri, R., Raspereza, A., Razis, P., Ren, D., Rescigno, M., Reucroft, S., Riemann, S., Riles, Keith, Roe, B.P., Romero, L., Rosca, A., Rosemann, C., Rosenbleck, C., Rosier-Lees, S., Roth, Stefan, Rubio, J.A., Ruggiero, G., Rykaczewski, H., Sakharov, A., Saremi, S., Sarkar, S., Salicio, J., Sanchez, E., Schafer, C., Schegelsky, V., Schopper, H., Schotanus, D.J., Sciacca, C., Servoli, L., Shevchenko, S., Shivarov, N., Shoutko, V., Shumilov, E., Shvorob, A., Son, D., Souga, C., Spillantini, P., Steuer, M., Stickland, D.P., Stoyanov, B., Straessner, A., Sudhakar, K., Sultanov, G., Sun, L.Z., Sushkov, S., Suter, H., Swain, J.D., Szillasi, Z., Tang, X.W., Tarjan, P., Tauscher, L., Taylor, L., Tellili, B., Teyssier, D., Timmermans, Charles, Ting, Samuel C.C., Ting, S.M., Tonwar, S.C., Toth, J., Tully, C., Tung, K.L., Ulbricht, J., Valente, E., Van de Walle, R.T., Vasquez, R., Veszpremi, V., Vesztergombi, G., Vetlitsky, I., Viertel, G., Villa, S., Vivargent, M., Vlachos, S., Vodopianov, I., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A.A., Wadhwa, M., Wang, Q., Wang, X.L., Wang, Z.M., Weber, M., Wynhoff, S., Xia, L., Xu, Z.Z., Yamamoto, J., Yang, B.Z., Yang, C.G., Yang, H.J., Yang, M., Yeh, S.C., Zalite, An., Zalite, Yu., Zhang, Z.P., Zhao, J., Zhu, G.Y., Zhu, R.Y., Zhuang, H.L., Zichichi, A., Zimmermann, B., Zoller, M.
Lenguaje:eng
Publicado: 2005
Materias:
Acceso en línea:https://dx.doi.org/10.1016/j.physletb.2005.04.011
http://cds.cern.ch/record/831924
Descripción
Sumario:Exclusive rho+rho- production in two-photon collisions between a quasi-real photon, gamma, and a mid-virtuality photon, gamma*, is studied with data collected at LEP at centre-of-mass energies root(s)=183-209GeV with a total integrated luminosity of 684.8pb^-1. The cross section of the gamma gamma* -> rho+ rho- process is determined as a function of the photon virtuality, Q^2, and the two-photon centre-of-mass energy, W_gg, in the kinematic region: 0.2GeV^2 < Q^2 <0.85GeV^2 and 1.1GeV < W_gg < 3GeV. These results, together with previous L3 measurements of rho0 rho0 and rho+ rho- production, allow a study of the gamma gamma* -> rho rho process over the Q^2-region 0.2GeV^2 < Q^2 < 30 GeV^2.