Investigation of the Bc → Χc2lν Transition via QCD Sum Rules

Abstract

We calculate the transition form factors of the semileptonic Bc → χc2lν in the framework of QCD sum rules taking into account the two-gluon condensate correc- tions. Using the obtained results of form factors we esti- mate the decay widths and branching ratios related to this transition at all lepton channels. A comparison of the ob- tained results with the predictions of other non-perturbative approaches are also made. The orders of branching ratios for different lepton channels indicate that the Bc → χc2lν tran- sition can be studied at LHC using the collected or future data.