Measurement of the lifetime of B-hadrons and a determination of |Vcb|

Adeva, B. ; Adriani, O. ; Aguilar-Benitez, M. ; Gurtu, A. ; et., al (1991) Measurement of the lifetime of B-hadrons and a determination of |Vcb| Physics Letters B, 270 (1). pp. 111-122. ISSN 0370-2693

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Official URL: http://www.sciencedirect.com/science/article/pii/0...

Related URL: http://dx.doi.org/10.1016/0370-2693(91)91547-9

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→ℓνX), the CKM matrix element |Vcb| is determined to be 0.046±0.002 (exp.)−0.003+0.004 (theory).

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Deposited On:20 Feb 2012 06:11
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