Regular Article - Theoretical Physics
Decays of B, and to D-wave heavy–light mesons
Harbin Institute of Technology, Harbin, 150001, People’s Republic of China
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Accepted: 20 December 2016
Published online: 6 January 2017
We study the weak decays of and into D-wave heavy–light mesons, including () and () states. The weak decay hadronic matrix elements are obtained based on the instantaneous Bethe–Salpeter method. The branching ratios for the decays are , , and , respectively. For the semi-electronic decays of to , , and , the corresponding branching ratios are , , and , respectively. The branching ratios of the semi-electronic decays of to D-wave D mesons are in the order of . We also obtained the forward–backward asymmetry, angular spectra, and lepton momentum spectra. In particular the distribution of decay widths for the states and varying along with mixing angle are presented.
© The Author(s), 2017