Inclusive production of neutral vector mesons in hadronic Z decays

Autor: Buskulic, D., Casper, D., Bonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J., Lucotte, A., Minard, M., Odier, P., Pietrzyk, B., Ariztizabal, F., Chmeissani, M., Crespo, J., Efthymiopoulos, I., Fernandez, E., Fernandez-Bosman, M., Gaitan, V., Garrido, Ll., Martinez, M., Orteu, S., Pacheco, A., Padilla, C., Palla, F., Pascual, A., Perlas, J., Sanchez, F., Teubert, F., Colaleo, A., Creanza, D., Palma, M., Farilla, A., Gelao, G., Girone, M., Iaselli, G., Maggi, G., Maggi, M., Marinelli, N., Natali, S., Nuzzo, S., Ranieri, A., Raso, G., Romano, F., Ruggieri, F., Selvaggi, G., Silvestris, L., Tempesta, P., Zito, G., Huang, X., Lin, J., Ouyang, Q., Wang, T., Xie, Y., Xu, R., Xue, S., Zhang, J., Zhang, L., Zhao, W., Bonvicini, G., Cattaneo, M., Comas, P., Coyle, P., Drevermann, H., Engelhardt, A., Forty, R., Frank, M., Hagelberg, R., Harvey, J., Jacobsen, R., Janot, P., Jost, B., Knobloch, J., Lehraus, I., Markou, C., Martin, E., Mato, P., Meinhard, H., Minten, A., Miquel, R., Oest, T., Palazzi, P., Pater, J., Pusztaszeri, J., Ranjard, F., Rensing, P., Rolandi, L., Schlatter, D., Schmelling, M., Schneider, O., Tejessy, W., Tomalin, I., Venturi, A., Wachsmuth, H., Wiedenmann, W., Wildish, T., Witzeling, W., Wotschack, J., Ajaltouni, Z., Bardadin-Otwinowska, M., Barres, A., Boyer, C., Falvard, A., Gay, P., Guicheney, C., Henrard, P., Jousset, J., Michel, B., Monteil, S., Montret, J, Pallin, D., Perret, P., Podlyski, F., Proriol, J., Rossignol, J., Saadi, F., Fearnley, T., Hansen, J., Hansen, J., Hansen, J., Hansen, P., Nilsson, B., Kyriakis, A., Simopoulou, E., Siotis, I., Vayaki, A., Zachariadou, K., Blondel, A., Bonneaud, G., Brient, J., Bourdon, P., Passalacqua, L., Rougé, A., Rumpf, M., Tanaka, R., Valassi, A., Verderi, M., Videau, H., Candlin, D., Parsons, M., Focardi, E., Parrini, G., Corden, M., Delfino, M., Georgiopoulos, C., Jaffe, D., Antonelli, A., Bencivenni, G., Bologna, G., Bossi, F., Campana, P., Capon, G., Chiarella, V., Felici, G., Laurelli, P., Mannocchi, G., Murtas, F., Murtas, G., Pepe-Altarelli, M., Dorris, S., Halley, A., Have, I., Knowles, I., Lynch, J., Morton, W., O’Shea, V., Raine, C., Reeves, P., Scarr, J., Smith, K., Smith, M., Thompson, A., Thomson, F., Thorn, S., Turnbull, R., Becker, U., Braun, O., Geweniger, C., Graefe, G., Hanke, P., Hepp, V., Kluge, E., Putzer, A., Rensch, B., Schmidt, M., Sommer, J., Stenzel, H., Tittel, K., Werner, S., Wunsch, M., Beuselinck, R., Binnie, D., Cameron, W., Colling, D., Dornan, P., Konstantinidis, N., Moneta, L., Moutoussi, A., Nash, J., San Martin, G., Sedgbeer, J., Stacey, A., Dissertori, G., Girtler, P., Kneringer, E., Kuhn, D., Rudolph, G., Bowdery, C., Brodbeck, T., Colrain, P., Crawford, G., Finch, A., Foster, F., Hughes, G., Sloan, T., Whelan, E., Williams, M., Galla, A., Greene, A., Kleinknecht, K., Quast, G., Raab, J., Renk, B., Sander, H., Wanke, R., Zeitnitz, C., Aubert, J., Bencheikh, A., Benchouk, C., Bonissent, A., Bujosa, G., Calvet, D., Carr, J., Diaconu, C., Etienne, F., Thulasidas, M., Nicod, D., Payre, P., Rousseau, D., Talby, M., Abt, I., Assmann, R., Bauer, C., Blum, W., Brown, D., Dietl, H., Dydak, F., Ganis, G., Gotzhein, C., Jakobs, K., Kroha, H., Lütjens, G., Lutz, G., Männer, W., Moser, H., Richter, R., Rosado-Schlosser, A., Schael, S., Settles, R., Seywerd, H., Stierlin, U., Denis, R., Wolf, G., Alemany, R., Boucrot, J., Callot, O., Cordier, A., Courault, F., Davier, M., Duflot, L., Grivaz, J., Heusse, Ph, Jacquet, M., Kim, D., Diberder, F., Lefrançois, J., Lutz, A., Musolino, G., Nikolic, I., Park, H., Park, I., Schune, M., Simion, S., Veillet, J., Videau, I., Abbaneo, D., Azzurri, P., Bagliesi, G., Batignani, G., Bettarini, S., Bozzi, C., Calderini, G., Carpinelli, M., Ciocci, M., Ciulli, V., Dell’Orso, R., Fantechi, R., Ferrante, I., Foà, L., Forti, F., Giassi, A., Giorgi, M., Gregorio, A., Ligabue, F., Lusiani, A., Marrocchesi, P., Messineo, A., Rizzo, G., Sanguinetti, G., Sciabà, A., Spagnolo, P., Steinberger, J., Tenchini, R., Tonelli, G., Triggiani, G., Vannini, C., Verdini, P., Walsh, J., Betteridge, A., Blair, G., Bryant, L., Cerutti, F., Gao, Y., Green, M., Johnson, D., Medcalf, T., Mir, Ll, Perrodo, P., Strong, J., Bertin, V., Botterill, D., Clifft, R., Edgecock, T., Haywood, S., Edwards, M., Maley, P., Norton, P., Thompson, J., Bloch-Devaux, B., Colas, P., Duarte, H., Emery, S., Kozanecki, W., Lançon, E., Lemaire, M., Locci, E., Marx, B., Perez, P., Rander, J., Renardy, J., Rosowsky, A., Roussarie, A., Schuller, J., Schwindling, J., Si Mohand, D., Trabelsi, A., Vallage, B., Johnson, R., Kim, H., Litke, A., McNeil, M., Taylor, G., Beddall, A., Booth, C., Boswell, R., Cartwright, S., Combley, F., Dawson, I., Koksal, A., Letho, M., Newton, W., Rankin, C., Thompson, L., Böhrer, A., Brandt, S., Cowan, G., Feigl, E., Grupen, C., Lutters, G., Minguet-Rodriguez, J., Rivera, F., Saraiva, P., Smolik, L., Stephan, F., Gemmeren, P., Apollonio, M., Bosisio, L., Marina, R., Giannini, G., Gobbo, B., Ragusa, F., Rothberg, J., Wasserbaech, S., Armstrong, S., Bellantoni, L., Elmer, P., Feng, Z., Ferguson, D., Gao, Y., González, S., Grahl, J., Harton, J., Hayes, O., Hu, H., McNamara, P., Nachtman, J., Orejudos, W., Pan, Y., Saadi, Y., Schmitt, M., Scott, I., Sharma, V., Turk, J., Walsh, A., Wu, Sau, Wu, X., Yamartino, J., Zheng, M., Zobernig, G.
Zdroj: Zeitschrift für Physik C Particles and Fields; December 1995, Vol. 69 Issue: 3 p379-392, 14p
Abstrakt: Data on the inclusive production of the neutral vector mesonsρ0(770),ω(782), K*0(892), andφ(1020) in hadronic Z decays recorded with the ALEPH detector at LEP are presented and compared to Monte Carlo model predictions. Bose-Einstein effects are found to be important in extracting a reliable value for theρ0production rate. An averageρ0multiplicity of 1.45±0.21 per event is obtained. Theωis detected via its three pion decay modeω→π+π−π0and has a total rate of 1.07±0.14 per event. The multiplicity of the K*0is 0.83±0.09, whilst that of theφis 0.122±0.009, both measured using their charged decay modes. The measurements provide information on the relative production rates of vector and pseudoscalar mesons, as well as on the relative probabilities for the production of hadrons containing u, d, and s quarks.
Databáze: Supplemental Index