Investigation of the $B_{c}\rightarrow\chi_{c2} l \overline {\nu} $ transition via QCD sum rules

Abstract

We calculate the transition form factors of the semileptonic \(B_{c}\rightarrow\chi_{c2} l \overline{\nu} \) in the framework of QCD sum rules taking into account the two-gluon condensate corrections. Using the obtained results of form factors we estimate the decay widths and branching ratios related to this transition at all lepton channels. A comparison of the obtained results with the predictions of other non-perturbative approaches are also made. The orders of branching ratios for different lepton channels indicate that the \(B_{c}\rightarrow\chi_{c2} l \overline{\nu} \) transition can be studied at LHC using the collected or future data.