Probing new physics in semileptonic Σb and Ωb decays.

Recently, several hints of lepton nonuniversality have been observed in the semileptonic B meson decays in terms of both in the neutral current (b→sll) and charged current (b→clνl) transitions. Motivated by these inspiring results, we perform the analysis of the baryon decays Σb→Σclνl and Ωb→Ωclνl(l=e,μ,τ) which are mediated by b→clνl transitions at the quark level, to scrutinize the nature of new physics (NP) in the model independent method. We first use the experimental measurements of B(B→D(*)lνl), RD(*) and RJ/ψ to constrain the NP coupling parameters in a variety of scenarios. Using the constrained NP coupling parameters, we report numerical results on various observables related to the processes Σb→Σclνl and Ωb→Ωclνl, such as the branching ratios, the ratio of branching fractions, the lepton side forward-backward asymmetries, the hadron and lepton longitudinal polarization asymmetries and the convexity parameter. We also provide the q² dependency of these observables and we hope that the corresponding numerical results in this work will be testified by future experiments. [ABSTRACT FROM AUTHOR]