Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-06-22
Physics
High Energy Physics
High Energy Physics - Phenomenology
24 pages, 9 figures
Scientific paper
Rare semileptonic decays of B and B_c mesons are investigated in the framework of the QCD-motivated relativistic quark model based on the quasipotential approach. Form factors parametrizing the matrix elements of the weak transitions between corresponding meson states are calculated with the complete account of the relativistic effects including contributions of intermediate negative energy states and relativistic transformations of the meson wave functions. The momentum transfer dependence of the form factors is reliably determined in the whole accessible kinematical range. On this basis the total and differential branching fractions of the B\to K^{(*)}l^+l^-(\nu\bar\nu) and B_c\to D_s^{(*)}l^+l^-(\nu\bar\nu), B_c\to D^{(*)}l^+l^-(\nu\bar\nu) decays as well as the longitudinal polarization fractions F_L of the final vector meson and the muon forward-backward asymmetries A_{FB} are calculated. Good agreement of the obtained results with the recent detailed experimental data on the B\to K^{(*)}\mu^+\mu^- decays from Belle and CDF is found. Predictions for the rare semileptonic decays of the B_c mesons are given.
Ebert Dietmar
Faustov Rudolf N.
Galkin V. O.
No associations
LandOfFree
Rare semileptonic decays of B and B_c mesons in the relativistic quark model does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Rare semileptonic decays of B and B_c mesons in the relativistic quark model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rare semileptonic decays of B and B_c mesons in the relativistic quark model will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-107855