Charm quark mass dependence of the electromagnetic dipole operator contribution to B¯→Xsγ at O(αs2)

2006/11/30 by H. M. Asatrian, T. Ewerth, H. Gabrielyan +2 · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/j.physletb.2007.02.027

published as Phys.Lett.B647:173-178,2007 · 10 pages, uses axodraw.sty; minor corrections, references added, matches published version

openalex publication_date 2007/02/17 · arxiv created 2007/06/02 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We extend existing calculations of the electromagnetic dipole operator contribution to the total decay rate and the photon energy spectrum of the decay B -> X_sγat O(α_s²) by working out the exact dependence on the charm quark mass.

Citations

• Fermionic next-to-next-to leading logarithmic corrections tob→sγ
• Magnetic dipole operator contributions to the photon energy spectrum in B¯→Xsγ at O(αs2)

Cited by

• Bound on minimal universal extra dimensions fromB¯→Xsγ