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QCD corrections to the weak radiative [formula omitted]-meson decay

The B → X sγ decay, which is sensitive to the top-quark mass, has become now particularly interesting as we expect a t-mass greater than 80 GeV. The QCD corrections play a relevant role, enhancing the GIM suppressed vertex: their computation presents many technical difficulties, which have led to di...

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Bibliographic Details
Published in:Physics letters. B 1990-09, Vol.248 (1), p.181-187
Main Authors: Cella, Giancarlo, Curci, Giuseppe, Ricciardi, Giulia, Viceré, Andrea
Format: Article
Language:English
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Summary:The B → X sγ decay, which is sensitive to the top-quark mass, has become now particularly interesting as we expect a t-mass greater than 80 GeV. The QCD corrections play a relevant role, enhancing the GIM suppressed vertex: their computation presents many technical difficulties, which have led to different results in the previous literature. We have performed the calculation off-shell, in all gauges, in the leading logarithmic approximation; we confirm the strong enhancement of the QCD corrected branching ratios.
ISSN:0370-2693
1873-2445
DOI:10.1016/0370-2693(90)90036-6