Speaker
Aidos Issadykov
(JINR&INP)
Description
In the wake of the recent measurements of the decays B → J/ψ π(K) and B → J/ψ lν reported by the LHCb Collaboration we calculate c c l
the form factors for the B → J/ψ and B → η transitions in full kinematical region within covariant confined quark model. Then we use the c c c
calculated form factors to evaluate the partial decay widths of the above-mentioned semileptonic and nonleptonic decays of the B meson. c
We find that the theoretical predictions on the ratios of R and R are in good agreement with the last LHCb-data. However, the prediction K+/π+ π+/μ+ν
for the R is found to be underestimated.
Primary author
Aidos Issadykov
(JINR&INP)
