From a fit to the impact parameter distribution of lepton tracks from semileptonic b decay, the lifetime of B-hadrons produced in e+e- collisions at the Z0 is measured to be 1.32 +/- 0.08 (stat.) +/- 0.09 (syst.) ps. Combined with an earlier measurement of the branching ratio Br(B --> lvX), the CKM matrix element \V(cb)\ is determined to be 0.046 +/- 0.002 (exp.) -0.003(+0.004) (theory).

Measurement of the Lifetime of B-hadrons and A Determination of [vcb] / B. ADEVA, O. ADRIANI, M. AGUILARBENITEZ, H. AKBARI, J. ALCARAZ, A. ALOISIO, G. ALVERSON, M. G. ALVIGGI, G. AMBROSI, Q. AN, H. ANDERHUB, A. L. ANDERSON, V. P. ANDREEV, T. ANGELOV, L. ANTONOV, D. ANTREASYAN, P. ARCE, A. AREFIEV, T. AZEMOON, T. AZIZ, et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 270:(1991), pp. 111-122. [10.1016/0370-2693(91)91547-9]

Measurement of the Lifetime of B-hadrons and A Determination of [vcb]

ADRIANI, OSCAR;D'ALESSANDRO, RAFFAELLO;M. LENTI;
1991

Abstract

From a fit to the impact parameter distribution of lepton tracks from semileptonic b decay, the lifetime of B-hadrons produced in e+e- collisions at the Z0 is measured to be 1.32 +/- 0.08 (stat.) +/- 0.09 (syst.) ps. Combined with an earlier measurement of the branching ratio Br(B --> lvX), the CKM matrix element \V(cb)\ is determined to be 0.046 +/- 0.002 (exp.) -0.003(+0.004) (theory).
1991
270
111
122
B. ADEVA;O. ADRIANI;M. AGUILARBENITEZ;H. AKBARI;J. ALCARAZ;A. ALOISIO;G. ALVERSON;M. G. ALVIGGI;G. AMBROSI;Q. AN;H. ANDERHUB;A. L. ANDERSO...espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/772728
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