Strong And Radiative Decays Of The D Wave Singly Heavy Baryons

In this work,based on a non-relativistic constituent quark model,we have systematically studied the strong and radiative decays of the low-lying λ-mode 1D－wave single heavy baryons Λc(b),∑c(b),Ξc(b),Ξc’(b)and Ωc(b).For the strong decays of a heavy baryon,we only consider one pion and/or one kaon meson emitting processes.And for the radiative decays of a heavy baryon,we consider one photon emitting processes.Our calculation shows that(ⅰ)the missing λ-mode D-wave Ωc(b),Λb and Ξb baryons have a relatively narrow decay width of less than 30 MeV,their dominant strong and radiative decay channels can be ideal for searching for their signals in future experiments.(ⅱ)The λ-mode 1D-wave excitations in the Σc(b)and Ξc’(b)families appear to have a relatively broad width of larger than 50 MeV.These 1D-wave states have large decay rates into the 1P-wave heavy baryon states via the pionic or kaonic strong decay processes,which are worth to observing in future experiments.(ⅲ)Both Λc(2860)and Ξc(3050)seem to favor the Jp=3/2+excitation |2Dλλ3/2+>of 3F.while assignilg Λc(2880)and Ξc(3080)as the JP=5/2+excitation |2Dλλ5/2+>of 3F,one cannot well understand the measured partial width ratios from experimentsThere are few discussions of the radiative decay properties of the D-wave charmed and bottom baryons,and the strong decays of the D-wave bottom baryon-s.Thus,it is necessary to carry out a systematical study of the strong and radiative decays for the D-wave singly charmed and bottom baryons.In future experiments,we hope our research can provide valuable clues for finding the missing λ-mode D-wave Λc(b),Σc(b),Ξc(b),Ξc’(b)and Ωc(n)baryons.