[Wang, Zhi-hui; Wang, Guo-Li] Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China; [Chang, Chao-Hsi] CCAST World Lab, Beijing 100190, Peoples R China; [Chang, Chao-Hsi] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
英文摘要:
We recalculate the exclusive semileptonic and nonleptonic decays of the B-c meson to a P-wave charmonium in terms of the improved Bethe-Salpeter (B-S) approach, which has been developed recently. Here the widths of the exclusive semileptonic and nonleptonic decays, the form factors and the charged lepton spectra for the semileptonic decays are precisely calculated. To test the concerned approach by comparing with experimental measurements when the experimental data are available, and to have comparisons with the other approaches, the results obtained by the approach and those by some other approaches as well as the original B-S approach, which appeared in the literature, are comparatively presented and discussed.
Wang, ZH,Wang, GL,Chang, CH. The B-c decays to a P-wave charmonium by the improved Bethe-Salpeter approach[J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,2012,39(1):15009.
