Regular Article - Theoretical Physics
D-wave charmonia , , and in decays
Department of Physics, Harbin Institute of Technology, Harbin, 150001, People’s Republic of China
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Accepted: 1 August 2016
Published online: 12 August 2016
We study the semileptonic and nonleptonic decays of meson to D-wave charmonia, namely, , , and . In our calculations, the instantaneous Bethe–Salpeter method is applied to obtain the hadronic matrix elements. This method includes relativistic corrections which are important especially for the higher orbital excited states. For the semileptonic decay channels with electron as the final lepton, we get the branching ratios , , and . The transition form factors, forward–backward asymmetries, and lepton spectra in these processes are also presented. For the nonleptonic decay channels, those with as the lighter meson have the largest branching ratios, , , and .
© The Author(s), 2016