2012/07/31 by Wenyu Wang, Zhao-Hua Xiong, Zhaohua Xiong +1 · 1 citation
Chemistry · Physics and Astronomy · #Atomic physics #Branching fraction #Chemistry #High-Energy Particle Collisions Research #Large Hadron Collider #Meson #Nuclear physics #Operator (biology) #Particle physics #Particle physics theoretical and experimental studies #Photon #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Radiative transfer #Virtual particle #Wave function #hep-ph
paper · pdf · doi:10.1088/1674-1137/38/6/063103
published in Chinese Physics C 38(6), 063103 (IOP Publishing) · 1 figures, 10 pages, minor changes, references and comments added
arxiv created 2012/09/19 · openalex publication_date 2014/06/01 · arxiv updated 2015/06/05 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Using the B s meson wave function extracted from non-leptonic B s decays, we reevaluate the rare decays B s → l + l − γ, (l=e, μ) in the Standard Model, including two kinds of contributions from the magnetic-penguin operator with virtual and real photons. We find that contributions to the exclusive decays from the magnetic-penguin operator b → sγ with real photons, which were regarded as negligible in the previous literature, are large and the branching ratios B s → l + l − γ are enhanced by a factor of almost 2. With the predicted branching ratios of the order of 10 −8 , it is expected that these radiative dileptonic decays will be detected in LHC-b and B factories in the near future.