Acciarri, M. ; Adriani, O. ; Aguilar-Benitez, M. ; Gurtu, A. ; et., al (1998) Measurement of the inclusive charmless semileptonic branching fraction of beauty hadrons and a determination of |Vub| at LEP Physics Letters B, 436 (1-2). pp. 174-186. ISSN 0370-2693
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0370-2693(98)00941-1
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: |Vub| = (6.0+0.8 + 1.4-1.0 - 1.9±0.2) × 10−3, where the uncertainties are statistical, systematic and theoretical, respectively.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 83541 |
| Deposited On: | 21 Feb 2012 12:50 |
| Last Modified: | 21 Feb 2012 12:50 |
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