General analysis of the rare Bc->D^*_s l^+ l^- decay beyond the standard model

TL;DR

This paper provides a comprehensive, model-independent analysis of the rare Bc->D*_s l+ l- decay, exploring how various asymmetries depend on potential new physics beyond the standard model.

Contribution

It introduces a general framework for analyzing the decay using effective Hamiltonian, highlighting the sensitivity of polarization asymmetries to scalar and tensor interactions.

Findings

Lepton polarization asymmetries are highly sensitive to scalar and tensor interactions.

Branching ratios and asymmetries depend on new Wilson coefficients.

Analysis aids in searching for physics beyond the standard model.

Abstract

The general analysis of the rare Bc->D^*_s l^+ l^- decay is presented by using the most general, model independent effective Hamiltonian. The dependencies of the branching ratios, longitudinal, normal and transversal polarization asymmetries for l^- and the combined asymmetries for l^- and l^+ on the new Wilson coefficients are investigated. Our analysis shows that the lepton polarization asymmetries are very sensitive to the scalar and tensor type interactions, which will be very useful in looking for new physics beyond the standard model.