The forward-backward asymmetry for charm quarks at the Z

R. Barate, D. Buskulic, D. Decamp, P. Ghez, C. Goy, J. P. Lees, A. Lucotte, E. Merle, M. N. Minard, J. Y. Nief, B. Pietrzyk, R. Alemany, G. Boix, M. P. Casado, M. Chmeissani, J. M. Crespo, M. Delfino, E. Fernandez, M. Fernandez-Bosman, L. GarridoE. Grauges, A. Juste, M. Martinez, G. Merino, R. Miquel, Ll M. Mir, I. C. Park, A. Pascual, I. Riu, F. Sanchez, A. Colaleo, D. Creanza, M. de Palma, G. Gelao, G. Iaselli, G. Maggi, M. Maggi, S. Nuzzo, A. Ranieri, G. Raso, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, A. Tricomi, G. Zito, X. Huang, J. Lin, Q. Ouyang, T. Wang, Y. Xie, R. Xu, S. Xue, J. Zhang, L. Zhang, W. Zhao, D. Abbaneo, U. Becker, P. Bright-Thomas, D. Casper, M. Cattaneo, F. Cerutti, V. Ciulli, G. Dissertori, H. Drevermann, R. W. Forty, M. Frank, R. Hagelberg, A. W. Halley, J. B. Hansen, J. Harvey, P. Janot, B. Jost, I. Lehraus, P. Mato, A. Minten, L. Moneta, A. Pacheco, F. Ranjard, L. Rolandi, D. Rousseau, D. Schlatter, M. Schmitt, O. Schneider, W. Tejessy, F. Teubert, I. R. Tomalin, H. Wachsmuth, Z. Ajaltouni, F. Badaud, G. Chazelle, O. Deschamps, A. Falvard, C. Ferdi, P. Gay, C. Guicheney, P. Henrard, J. Jousset, B. Michel, S. Monteil

Research output: Contribution to journalArticleResearchpeer-review

14 Citations (Scopus)

Abstract

The data set collected with the ALEPH detector from 1991 to 1995 at LEP has been analysed to measure the charm forward-backward asymmetry at the Z. Out of a total of 4.1 million hadronic Z decays, about 36000 high momentum D * +, D+ and D0 decays were reconstructed, of which 80% originate from Z → cc̄ events. The forward-backward asymmetry was measured at three energy points: AcFB(√s = 89.37GeV) = (-1.0 ± 4.4)% AcFB(√s = 91.22GeV) = (6.3 ± 1.0)% AcFB(√s = 92.96 GeV) = (11.0 ± 3.4)%. From this analysis, a value of the effective electroweak mixing angle sin2θeffw = 0.2321 ± 0.0016 is extracted. © 1998 Elsevier Science B.V. All rights reserved.
Original languageEnglish
Pages (from-to)415-425
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume434
DOIs
Publication statusPublished - 27 Aug 1998

Fingerprint Dive into the research topics of 'The forward-backward asymmetry for charm quarks at the Z'. Together they form a unique fingerprint.

Cite this