Spin effects in two-particle hadronic decays of B_c mesons

TL;DR

This paper investigates the spin effects in two-particle hadronic decays of B_c and B_c^* mesons, revealing significant differences in J/psi polarization and decay widths within a hard gluon exchange model.

Contribution

It provides a detailed analysis of polarization and decay width differences in B_c and B_c^* meson decays using the hard gluon exchange framework, highlighting their distinct spin effects.

Findings

J/psi polarization differs significantly between B_c and B_c^* decays.

Decay widths into J/psi plus rho(pi) vary notably between the two mesons.

The polarization and decay width patterns are explained within the hard gluon exchange model.

Abstract

We consider spin effects in two-particle hadronic decays of B_c and B_c^* mesons into J/psi plus \rho(\pi) in the frame work of hard gluon exchange model. It is shown that polarization of the J/psi meson is very different in decays of B_c and B_c^* mesons as well as their decay widths into J/psi plus \rho(\pi).