Data on the inclusive production of the neutral vector mesons rho(0)(770), omega(782), K*(0)(892), and phi (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 the p(0) production rate. An average p(0) multiplicity of 1.45 +/- 0.21 per event is obtained. The omega is detected via its three pion decay mode omega --> pi(+)pi(-)pi(0) and has a total rate of 1.07 +/- 0.14 per event. The multiplicity of the K*(0) is 0.83 +/- 0.09, whilst that of the phi is 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.

Inclusive production of neutral vector mesons in hadronic Z decays / D. Buskulic, D. Casper, I. DeBonis, D. Decamp, P. Ghez, C. Goy, J. Lees, A. Lucotte, M. Minard, P. Odier, B. Pietrzyk, F. Ariztizabal, M. Chmeissani, J. Crespo, I. Efthymiopoulos, E. Fernandez, M. FernandezBosman, V. Gaitan, L. Garrido, M. Martinez, S. Orteu, A. Pacheco, C. Padilla, F. Palla, A. Pascual, J. Perlas, F. Sanchez, F. Teubert, A. Colaleo, D. Creanza, M. dePalma, A. Farilla, G. Gelao, M. Girone, G. Iaselli, G. Maggi, M. Maggi, N. Marinelli, S. Natali, S. Nuzzo, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, X. Huang, J. Lin, Q. Ouyang, T. Wang, Y. Xie, R. Xu, S. Xue, J. Zhang, L. Zhang, W. Zhao, G. Bonvicini, M. Cattaneo, P. Comas, P. Coyle, H. Drevermann, A. Engelhardt, R. Forty, M. Frank, R. Hagelberg, J. Harvey, R. Jacobsen, P. Janot, B. Jost, J. Knobloch, I. Lehraus, C. Markou, E. Martin, P. Mato, H. Meinhard, A. Minten, R. Miquel, T. Oest, P. Palazzi, J. 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Knowles, J. Lynch, W. Morton, V. OShea, C. Raine, P. Reeves, J. Scarr, K. Smith, M. Smith, A. Thompson, F. Thomson, S. Thorn, R. Turnbull, U. Becker, O. Braun, C. Geweniger, G. Graefe, P. Hanke, V. Hepp, E. Kluge, A. Putzer, B. Rensch, M. Schmidt, J. Sommer, H. Stenzel, K. Tittel, S. Werner, M. Wunsch, R. Beuselinck, D. Binnie, W. Cameron, D. Colling, P. Dornan, N. Konstantinidis, L. Moneta, A. Moutoussi, J. Nash, G. SanMartin, J. Sedgbeer, A. Stacey, G. Dissertori, P. Girtler, E. Kneringer, D. Kuhn, G. Rudolph, C. Bowdery, T. Brodbeck, P. Colrain, G. Crawford, A. Finch, F. Foster, G. Hughes, T. Sloan, E. Whelan, M. Williams, A. Galla, A. Greene, K. Kleinknecht, G. Quast, J. Raab, B. Renk, H. Sander, R. Wanke, C. Zeitnitz, J. Aubert, A. Bencheikh, C. Benchouk, A. Bonissent, G. Bujosa, D. Calvet, J. Carr, C. Diaconu, F. Etienne, M. Thulasidas, D. Nicod, P. Payre, D. Rousseau, M. Talby, I. Abt, R. Assmann, C. Bauer, W. Blum, D. Brown, H. Dietl, F. Dydak, G. Ganis, C. Gotzhein, K. 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Zobernig. - In: ZEITSCHRIFT FÜR PHYSIK. C, PARTICLES AND FIELDS. - ISSN 0170-9739. - 69:3(1996), pp. 379-392. [10.1007/s002880050038]

Inclusive production of neutral vector mesons in hadronic Z decays

F. Ragusa;
1996

Abstract

Data on the inclusive production of the neutral vector mesons rho(0)(770), omega(782), K*(0)(892), and phi (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 the p(0) production rate. An average p(0) multiplicity of 1.45 +/- 0.21 per event is obtained. The omega is detected via its three pion decay mode omega --> pi(+)pi(-)pi(0) and has a total rate of 1.07 +/- 0.14 per event. The multiplicity of the K*(0) is 0.83 +/- 0.09, whilst that of the phi is 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.
Settore FIS/01 - Fisica Sperimentale
Settore FIS/04 - Fisica Nucleare e Subnucleare
1996
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/176874
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