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MEASUREMENT OF THE LIFETIME OF B-HADRONS AND A DETERMINATION OF [VCB]

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). © 1991.
Publication status:
Published

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Journal:
PHYSICS LETTERS B
Volume:
270
Issue:
1
Pages:
111-122
Publication date:
1991-11-07
DOI:
ISSN:
0370-2693
URN:
uuid:f449347e-adc0-4b56-abc3-4142496eaa15
Source identifiers:
20876
Local pid:
pubs:20876

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