Probing penguin coefficients with the lifetime ratio
- 1 April 1998
- journal article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 57 (7) , 4282-4289
- https://doi.org/10.1103/physrevd.57.4282
Abstract
We calculate penguin contributions to the lifetime splitti ng between the Bs and the Bd meson. In the Standard Model the penguin effects are found to be opposite in sign, but of similar magnitude as the contributions of the current-current operators, des pite of the smallness of the penguin coefficients. We predict �(Bs) �(Bd) − 1 = (−1.2 ± 10.0) � 10 −3 � fBs 190MeV ! 2 ,Keywords
All Related Versions
This publication has 19 references indexed in Scilit:
- Penguin diagrams, charmlessdecays, and the “missing charm puzzle”Physical Review D, 1997
- The chromomagnetic dipole operator and the B semileptonic branching ratioPhysics Letters B, 1996
- Implications of TeV flavor physics for the ΔI=1/2 rule and theBsemileptonic branching ratioPhysical Review D, 1995
- Limitations in measuring the angle β by using SU(3) relations for B-meson decay-amplitudesPhysics Letters B, 1995
- Erratum: Differential distributions in semileptonic decays of heavy flavors in QCDPhysical Review D, 1994
- Inclusive semileptonicand polarizeddecays from QCDPhysical Review D, 1994
- Two-loop anomalous dimension matrix for ΔS = 1 weak non-leptonic decays (I). O(α2s)Nuclear Physics B, 1993
- Nonperturbative corrections to inclusive beauty and charm decays. QCD versus phenomenological modelsPhysics Letters B, 1992
- The mass ratio mcmb in semi-leptonic b-decaysPhysics Letters B, 1989
- Supersymmetric enhancement of non-charmed B-decaysNuclear Physics B, 1987