Transverse momentum distribution in b → sγ

Autor: R. Sghedoni
Rok vydání: 2004
Předmět:
Zdroj: Nuclear Physics B - Proceedings Supplements. 133:162-165
ISSN: 0920-5632
DOI: 10.1016/j.nuclphysbps.2004.04.156
Popis: We present the complete calculation of the transverse momentum distribution for the decay b → sγ . 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(α s ) by calculating one loop diagrams.
Databáze: OpenAIRE