2018/05/06 by Gauhar Abbas, Abbas, Gauhar, Ashutosh Kumar Alok +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.1805.02265
openalex publication_date 2018/05/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
There are several anomalous measurements in the decays induced by the quark level transition b → s μ+ μ-, which do not agree with the predictions of the Standard Model. These measurements could be considered as signatures of physics beyond the Standard Model. Working within the framework of effective field theory, several groups have performed global fits to all b → s μ+ μ- data to identify the Lorentz structure of possible new physics. Many new physics scenarios have been suggested to explain the anomalies in the b → s μ+ μ- sector. In this work, we investigate the impact of these new physics scenarios on the radiative leptonic decay of Bs meson. We consider the branching ratio of this decay along with the ratio Rγ of the differential distribution Bs → μ+ μ- γ & Bs → e+ e- γ and the muon forward-backward asymmetry AFB. We find that the predicted values of the branching ratio and AFB are close to the SM results for all allowed new physics solutions whereas some of the solutions allow large deviation in Rγ from its SM prediction.