Radiative Decays of Excited $Λ_Q$ Baryons in the Bound State Picture
Abstract
Description
It is shown that, in the bound state picture, the $Λ_c(2593) \toΛ_cγ$ and $Λ_c(2625)\toΛ_cγ$ decays are severely suppressed. On the other hand, for their bottom counterparts, which are predicted to have masses 5900 and 5926 MeV respectively, may have significant radiative branching ratio. In particular, the $Λ_b(5926)\toΛ_bγ$ mode may even dominate over the strong decay mode. The isospin allowed $Λ^{**}_Q\toΣ_Qγ$ mode is expected to be small.
8 pages in REVTeX, no figures
8 pages in REVTeX, no figures