BREMSSTRAHLUNG CORRECTIONS TO THE DECAY B-]S-GAMMA

Authors
Citation
N. Pott, BREMSSTRAHLUNG CORRECTIONS TO THE DECAY B-]S-GAMMA, Physical review. D. Particles and fields, 54(1), 1996, pp. 938-948
Citations number
24
Categorie Soggetti
Physics, Particles & Fields
ISSN journal
05562821
Volume
54
Issue
1
Year of publication
1996
Part
2
Pages
938 - 948
Database
ISI
SICI code
0556-2821(1996)54:1<938:BCTTDB>2.0.ZU;2-T
Abstract
We calculate the O(alpha(s)) gluon bremsstrahlung corrections to the i nclusive decay b --> s gamma, involving the full operator basis (O) ov er cap(1)$ - (O) over cap(8)$. Confirming and extending earlier calcul ations of Ali and Greub, we give formulas for the total decay width as well as the perturbative photon spectrum, regarding the former as a n ecessary part of the forthcoming complete NLO analysis. We explore in detail the renormalization scale dependence of our results and find it considerably increased.