Light Resonances in $K^{0}_{S} K^{\pm}\pi^{\mp}$ and $\eta \pi^{+} \pi^{-}$ final states in $\gamma\gamma$ collisions at LEP

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, V.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., 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, Yu., Ganguli, S.N., Garcia-Abia, P., Gataullin, M., Gau, S.S., Gentile, S., Gheordanescu, N., Giagu, S., Gong, Z.F., Grenier, G., 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, A., Hidas, P., Hirschfelder, J., Hofer, H., Holzner, G., Hoorani, H., Hou, S.R., Hu, Y., Iashvili, I., Jin, B.N., Jones, L.W., De Jong, P., Josa-Mutuberra, I., Khan, R.A., Kaur, M., Kienzle-Focacci, M.N., Kim, D., Kim, J.K., Kirkby, J., 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, D., 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., Nowak, H., 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, T., 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, K., Rodin, J., Roe, B.P., Romero, L., Rosca, A., Rosier-Lees, S., 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, 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, A., 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, 501, pp.1-11
ISSN: 0370-2693
Popis: Matière Nucléaire; The $e^+ e^- \rightarrow e^+ e^- K^{0}_{s} K^{\pm} pi^{\mp}$ and $e^+ e^- \rightarrow e^+ e^- \eta \pi^{+} \pi^{-}$ final states are studied with the L3 detector at LEP using data collected at centre-of-mass energies from 183 GeV up to 202 GeV. The mass spectrum of the $K^{0}_{s} K^{\pm} \pi^{\mp}$ final state shows an enhancement around 1470 MeV, which is identified with the pseudoscalar meson $\eta(1440)$. This state is observed in $\gamma \gamma$ collisions for the first time and its two-photon width is measured to be $\Gamma_{\gamma\gamma}(\eta(1440)) x BR(\eta(1440) \rightarrow K\bar{K}\pi = 212 \pm 50 (stat) \pm 23 (sys)$ eV. Clear evidence is also obtained for the formation of the axial vector mesons $f_1$(1420) and $f_1$(1285). In the $\eta \pi^{+} \pi^{-}$ channel the $f_1$ (1285)} is observed, and upper limits for the formation of $\eta(1440)$ and $\eta(1295)$ are obtained.
Databáze: OpenAIRE
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