B → ργ Decay in the Large Energy Effective Theory

2002/09/28 by Alexander Ya. Parkhomenko, Parkhomenko, Alexander Ya.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/0209346

10 pages, 3 EPS figures, talk at the 12th International Seminar "Quarks'2002", Novgorod the Great, Russia, June 1-7, 2002

arxiv created 2002/09/28 · arxiv updated 2009/11/30

Abstract

The branching ratio for the B → ργ decay in the next-to-leading order (NLO) in the strong coupling α_s and in leading power in Λ_{\rm QCD}/m_B is presented. The corrections are combined the hard-vertex, hard-spectator and annihilation contributions and found to be large. The theoretical expectation for the branching ratios, the isospin-violating ratio and for the direct CP-asymmetry in the B → ργ decays are presented.

Related

• B → (ρ, ω)γ Decays and CKM Phenomenology
• Towards a next-to-leading logarithmic result in B → X_s γ
• Branching fraction, CP asymmetry, and polarization in B→ρρ decays with the modified perturbative QCD approach
• The Λ_b→ J/ψ+Λ Decay Revisited
• B -> phi K decays in perturbative QCD approach