2011/08/04 by Aqeel Ahmed, Ishtiaq Ahmed, Ahmed, Aqeel +9
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.1108.1058
openalex publication_date 2011/08/04 · openalex created_date 2024/04/11 · openalex updated_date 2026/07/28
A comparative study of the exclusive rare Bc→ Ds∗ℓ+ℓ- (ℓ=μ, τ) decays has been made in the minimal supersymmetric models (MSSM) and the SUSY SO(10) GUT models. In this context, various physical observables such as branching ratios (BR), forward-backward asymmetries (AFB), lepton polarization asymmetries (PL,N,T) and helicity fractions (fL,T) of Ds∗ meson by using the the QCD sum rules form factors have been investigated. It is found that the SUSY effects are characteristically prominent to that of the SM values for these observables. For instance, in SUSY I and SUSY II, the forward-backward asymmetry does not cross zero which is mainly due to the same sign of the C7eff and C9eff Wilson coefficients. Similarly in SUSY SO(10) GUT models due to the complex nature of the new Wilson coefficients -- corresponding to the new operators arising due to the contribution of neutral Higgs bosons (NHBs) -- the above mentioned observables are sizably affected. Therefore the analysis of said observables in charmed semileptonic B meson decays can put some stringent constraints on the parameter space of SUSY variants and can serve as a windowpane to look beyond the SM.