Year: 2024
Type: article
Abstract: \nDiscrepancies have been noted between experimental measurements and Standard Model predictions for various observables related to the B → (K, K∗, ϕ)ll processes. Recently, the Belle-II Collaboration observed a 2.8σ deviation from Standard Model predictions in the branching ratio of the B → Kνl ν¯l decay mode. In this context, we investigate the exclusive semileptonic Bc → D*sµ+µ- decay mode, mediated by b → s quark level transition, using Effective Field Theory formalism. We perform a global fit to the new parameters using existing experimental data on b → sµ+µ−. We then estimate the branching ratio and other observables such as forward-backward asymmetry, lepton polarisation asymmetry, and the lepton non-universality parameter of the Bc → D(*)sµ+µ- process. Although this process has not yet been detected experimentally, we offer predictions and discuss the observables for Bc → D*sµ+µ- in both the Standard Model and potential new physics scenarios.\n
Authors: Ajay Kumar Yadav, Manas Kumar Mohapatra, Suchismita Sahoo
Institutions: Central University of Karnataka, University of Hyderabad
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Award: G5092338922
OpenAlex ID: W6959643034
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