Two-loop matching of the dipole operators for b{r_arrow}s{gamma} and b{r_arrow}sg

Journal Article · Mon Sep 01 04:00:00 EDT 1997 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.56.2934· OSTI ID:538719

Greub, C ^[1]; Hurth, T ^[2]

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1. Deutsches Elektronen-Synchrotron DESY, 22603 Hamburg (Germany)
2. Institute of Theoretical Physics, SUNY at Stony Brook, Stony Brook, New York 11794-3840 (United States)

The order {alpha}{sub s} corrections to the Wilson coefficients of the dipole operators (O{sub 7},O{sub 8}) at the matching scale {mu}=m{sub W} are a crucial ingredient for a complete next-to-leading logarithmic calculation of the branching ratio for b{r_arrow}s{gamma}. Given the phenomenological relevance and the fact that this two-loop calculation has been done so far only by Adel and Yao, we present a detailed recalculation using a different method. Our results are in complete agreement with those of Adel and Yao. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 538719
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 5 Vol. 56; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
B QUARKS
BRANCHING RATIO
DIPOLES
GAMMA DECAY
PERTURBATION THEORY
QUANTUM OPERATORS
WEAK HADRONIC DECAY