Factorization of radiative leptonic decays of B− and D− mesons including the soft photon region

In this work, we study the radiative leptonic decays of B− and D− mesons using factorization approach. Factorization is proved to be valid explicitly at 1-loop level at any order of O(ΛQCD/mQ). We consider the contribution in the soft photon region that Eγ∼ΛQCD2/mQ. The numerical results show that,...

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Bibliographic Details
Main Authors: Ji-Chong Yang, Mao-Zhi Yang
Format: Article
Language:English
Published: Elsevier 2017-01-01
Series:Nuclear Physics B
Online Access:http://www.sciencedirect.com/science/article/pii/S0550321316303625