Four-fermion production in e+e- collisions at centre-of-mass energies of 130 and 136 GeV

D. Buskulic, I. de Bonis, D. Decamp, P. Ghez, C. Goy, J. P. Lees, A. Lucotte, M. N. Minard, J. Y. Nief, P. Odier, B. Pietrzyk, M. P. Casado, M. Chmeissani, J. M. Crespo, M. Delfino, I. Efthymiopoulos, E. Fernandez, M. Fernandez-Bosman, L. Garrido, A. JusteM. Martinez, S. Orteu, C. Padilla, I. C. Park, A. Pascual, J. A. Perlas, I. Riu, F. Sanchez, F. Teubert, A. Colaleo, D. Creanza, M. de Palma, G. Gelao, M. Girone, G. Iaselli, G. Maggi, M. Maggi, N. Marinelli, S. Nuzzo, A. Ranieri, G. Raso, 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, R. Alemany, A. O. Bazarko, M. Cattaneo, P. Comas, P. Coyle, H. Drevermann, R. W. Forty, M. Frank, R. Hagelberg, J. Harvey, P. Janot, B. Jost, E. Kneringer, J. Knobloch, I. Lehraus, G. Lutters, E. B. Martin, P. Mato, A. Minten, R. Miquel, L. M. Mir, L. Moneta, T. Oest, A. Pacheco, J. F. Pusztaszeri, F. Ranjard, P. Rensing, L. Rolandi, D. Schlatter, M. Schmelling, M. Schmitt, O. Schneider, W. Tejessy, I. R. Tomalin, A. Venturi, H. Wachsmuth, A. Wagner, Z. Ajaltouni, A. Barrès, C. Boyer, A. Falvard, P. Gay, C. Guicheney, P. Henrard

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5 Citations (Scopus)

Abstract

Four-fermion events have been selected in a data sample of 5.8 pb-1 collected with the ALEPH detector at centre-of-mass energies of 130 and 136 GeV. The final states ℓ+ℓ-qq̄, ℓ+ℓ-ℓ+ℓ -,vv̄qq̄, and vv̄ℓ+ℓ- have been examined. Five events are observed in the data, in agreement with the Standard Model predictions of 6.67 ± 0.38 events from four-fermion processes and 0.14 +0.19-0.05 from background processes.
Original languageEnglish
Pages (from-to)419-430
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume388
Issue number2
DOIs
Publication statusPublished - 14 Nov 1996

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