https://doi.org/10.1140/epjc/s10052-016-4588-5
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
* e-mail: thwang@hit.edu.cn
Received:
14
November
2016
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
