Strong decay constants of heavy tensor mesons in light cone QCD sum rules

TL;DR

This paper estimates the strong decay constants of heavy tensor mesons to lighter mesons using light cone QCD sum rules, highlighting the dependence on Lorentz structure and calculating decay widths.

Contribution

It introduces a method to compute decay constants of heavy tensor mesons within light cone QCD sum rules, emphasizing Lorentz structure dependence.

Findings

Strong decay constants depend heavily on Lorentz structure.

Decay widths are calculated from the estimated coupling constants.

Results provide insights into heavy meson decay mechanisms.

Abstract

Strong decay constants of the heavy tensor to heavy pseudoscalar (vector) and light pseudoscalar mesons are estimated within the light cone QCD sum rules. It is obtained that the values of these coupling constants are very strongly dependent on the choice of the Lorentz structure. Moreover, using these strong coupling constants the corresponding decay widths are calculated.