Semileptonic decays of B*, , and with the Bethe–Salpeter method

Abstract

In this paper we study the semileptonic decays of B*, , and by using the Bethe–Salpeter method with instantaneous approximation. Both the and cases are considered. The largest partial width of these channels is of the order of 10−14 GeV. The branching ratios of these semileptonic decays are also estimated by using the partial width of the one photon decay channel to approximate the total width. For and , the branching ratios are of the order of 10−8 and 10−7, respectively. For , the and channels have the largest branching ratio, which is of the order of 10−6.