An improved measurement of the average lifetime of b hadrons has been performed with the ALEPH detector. From a sample of 260 000 hadronic Z0 decays, recorded during the 1991 LEP run with the silicon vertex detector fully operational, a fit to the impact parameter distribution of lepton tracks coming from semileptonic decays yields an average b hadron lifetime of 1.49 ± 0.03 ± 0.06 ps.

Updated measurement of the average b hadron lifetime / D. Buskulic, D. Decamp, C. Goy, J.-P. Lees, M.-N. Minard, B. Mours, R. Alemany, F. Ariztizabal, P. Comas, J.M. Crespo, M. Delfino, E. Fernandez, V. Gaitan, Ll. Garrido, T. Mattison, A. Pacheco, A. Pascual, D. Creanza, M. de Palma, A. Farilla, et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - ELETTRONICO. - 295:(1992), pp. 174-186. [10.1016/0370-2693(92)90108-G]

Updated measurement of the average b hadron lifetime

FOCARDI, ETTORE;
1992

Abstract

An improved measurement of the average lifetime of b hadrons has been performed with the ALEPH detector. From a sample of 260 000 hadronic Z0 decays, recorded during the 1991 LEP run with the silicon vertex detector fully operational, a fit to the impact parameter distribution of lepton tracks coming from semileptonic decays yields an average b hadron lifetime of 1.49 ± 0.03 ± 0.06 ps.
1992
295
174
186
D. Buskulic;D. Decamp;C. Goy;J.-P. Lees;M.-N. Minard;B. Mours;R. Alemany;F. Ariztizabal;P. Comas;J.M. Crespo;M. Delfino;E. Fernandez;V. G...espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/638296
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