Resummed Transverse Momentum Distribution in b->s+gamma

Details Resummed Transverse Momentum Distribution in b->s+gamma Resummed Transverse Momentum Distribution in b->s+gamma

2003-11-14

arxiv.org/abs/hep-ph/0311193v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at "XV IFAE: Incontri sulla Fisica delle Alte Energie", Lecce, Italy, 23-26 April 2003, 4 pages

Scientific paper

We present the complete calculation of the transverse momentum distribution
for the decay b-> s gamma. The contributions of the leading operator O_7 are
computed: infrared logarithms are resummed with next-to-leading accuracy
according to usual techniques of resummation. Non logarithmic terms are
evaluated to O(alpha_S) by calculating one loop diagrams.

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