Identifying the ?b (6100) as the P-wave bottom baryon of JP=3/2-

We study the Xi(b)(6100) using the methods of QCD sum rules and light-cone sum rules within the framework of heavy quark effective theory. Our results suggest that the Xi(b)(6100) can be well interpreted as the P -wave bottom baryon of J(P) = 3/2(-), belonging to the SU(3) flavor 3 over bar(F) representation. It has a partner state of J(P) =1/2(-), labeled as Xi(b)(1/2(-)), whose mass and width are predicted to be m(Xi b)(1/2(-)) = 6.08(-0.11)(+0.13) GeV and gamma(Xi b)(1/2(-))4(-4+29) MeV, respectively, with the mass splitting delta M = m(Xi b(6100)) - m(Xi b(1/2-) )= 9 +/- 3 MeV. We propose to search for it in the Xi(c)(1/2(-)) -> Xi '(b)pi decay channel. Our results also suggest that the lambda(b)(5912) and lambda(b)(5920) are their partner states with J(P) = 1/2(-) and 3/2(-), respectively, and, moreover, the lambda(c)(2595), lambda(c)(2625), Xi(c)(2790), and Xi(c)(2815) are their charmed partner states.

Automated summary

In this study, we investigate the properties and masses of Xi(b)(6100) and its partner states using the methods of QCD sum rules and light-cone sum rules within the framework of heavy quark effective theory. Our results suggest that Xi(b)(6100) can be interpreted as a P-wave bottom baryon and has a partner state labeled as Xi(b)(1/2(-)). Additionally, lambda(b)(5912) and lambda(b)(5920) are identified as partner states of Xi(b)(6100) with J(P) = 1/2(-) and 3/2(-), respectively, and other charmed partner states are also discussed.