Perturbative QCD Analysis of B Meson Decays to Axial-Vector Mesons
Applying the perturbative QCD (kT-factorization) approach at next-to-leading order to predict exclusive B-meson decays into a charmonium state plus a light axial-vector meson. Students learn how factorization separates hard-scattering kernels from meson distribution amplitudes, how vertex corrections enter at NLO, and how observables such as branching ratios, polarization fractions, and CP asymmetries depend on the singlet-octet mixing angle of the h1(1170) and h1(1415) mesons, allowing the decays to test that mixing angle.
Studying the B0 →J/ψh1 decays with h1(1170) −h1(1415) mixing in the perturbative QCD approach Qin
Using the perturbative QCD (pQCD) factorization approach at next-to-leading order, this paper computes for the first time the branching ratios, polarization fractions, and direct CP asymmetries of th…