Probing the inner structures of the observed Ξ b and Ξ b ′ resonances

This is the authors' abstract. We don't add key points for this paper.

To shed light on the inner structure of the observed single-bottom strange baryons, in this work we systematically study the Okubo-Zweig-Iizuka allowed strong decay properties of 1 P - and 2 S -wave Ξ b and Ξ b ′ baryons within the j − j coupling scheme in the framework of the quark pair creation model. For a comparison, we also give the predictions of the chiral quark model. The calculations indicate that (i) The 1 P -wave λ -mode Ξ b states Ξ b | J P = 1 / 2 − , 1 ⟩ λ and Ξ b | J P = 3 / 2 − , 1 ⟩ λ are highly promising candidates for the observed state Ξ b ( 6087 ) and Ξ b ( 6095 ) / Ξ b ( 6100 ) , respectively. The 1 P -wave λ -mode Ξ b ′ states Ξ b ′ | J P = 3 / 2 − , 2 ⟩ λ and Ξ b ′ | J P = 5 / 2 − , 2 ⟩ λ are likely candidates for the state Ξ b ( 6227 ) . Meanwhile, we cannot rule out the possibility that Ξ b ( 6227 ) could be a candidate of the 1 P