Speaker
Dr
伟 陶
(河南师范大学)
Description
Within the framework of Non-Relativistic Quantum Chromodynamics (NRQCD) factorization,
we calculate the next-to-leading order (NLO) perturbative QCD corrections to the form factors for
the semileptonic decays of Bc into J/ψ via (axial-)vector and (axial-)tensor currents. We obtain the
complete analytical results for the form factors up to NLO, and provide their asymptotic expressions
in the hierarchical heavy quark limit. The NLO corrections are found to be both significant and
convergent in the relatively small squared transfer momentum （q2）region, while also reducing the
dependence on the renormalization scale µ. Finally, the theoretical predictions for Bc → J/ψ form
factors over the full q2 range are provided.
Primary author
Dr
伟 陶
(河南师范大学)
