An improved measurement of the average b hadron lifetime is performed using a sample of 1.5 million hadronic Z decays, collected during the 1991-1993 runs of ALEPH, with the silicon vertex detector fully operational, This uses the three-dimensional impact parameter distribution of lepton tracks coming from semileptonic b decays and yields an average b hadron lifetime of 1.533 +/- 0.013 +/- 0.022 ps.

A precise measurement of the average b hadron lifetime / D. Buskulic, I. DeBonis, D. Casper, D. Decamp, P. Ghez, C. Goy, J. P. Lees, A. Lucotte, M. N. Minard, P. Odier, B. Pietrzyk, F. Ariztizabal, M. Chmeissani, J. M. Crespo, I. Efthymiopoulos, E. Fernandez, M. FernandezBosman, V. Gaitan, S. Orteu, A. Pacheco, et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 369:(1996), pp. 151-162. [10.1016/0370-2693(95)01586-8]

A precise measurement of the average b hadron lifetime

FOCARDI, ETTORE;CIULLI, VITALIANO;
1996

Abstract

An improved measurement of the average b hadron lifetime is performed using a sample of 1.5 million hadronic Z decays, collected during the 1991-1993 runs of ALEPH, with the silicon vertex detector fully operational, This uses the three-dimensional impact parameter distribution of lepton tracks coming from semileptonic b decays and yields an average b hadron lifetime of 1.533 +/- 0.013 +/- 0.022 ps.
1996
369
151
162
D. Buskulic;I. DeBonis;D. Casper;D. Decamp;P. Ghez;C. Goy;J. P. Lees;A. Lucotte;M. N. Minard;P. Odier;B. Pietrzyk;F. Ariztizabal;M. Chmei...espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/770643
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