Journal article
Measurement of the inclusive charmless semileptonic branching fraction of beauty hadrons and a determination of |Vub| at LEP
Abstract
A measurement of the inclusive charmless semileptonic branching fraction of beauty hadrons, b→Xuℓν, has been performed using almost two million hadronic Z decays collected by the L3 experiment at LEP, yielding the result: Br(b→Xuℓν)=(3.3±1.0±1.7)×10−3. The first uncertainty is statistical and the second is systematic. The modulus of the Cabibbo-Kobayashi-Maskawa matrix element Vub extracted from this measurement is: …
Authors
Collaboration L; Acciarri M; Adriani O; Aguilar-Benitez M; Ahlen S; Alcaraz J; Alemanni G; Allaby J; Aloisio A; Alviggi MG
Journal
Physics Letters B, Vol. 436, No. 1-2, pp. 174–186
Publisher
Elsevier
Publication Date
September 1998
DOI
10.1016/s0370-2693(98)00941-1
ISSN
0370-2693