The newly observed Λb(6072)0 structure and its ρ-mode nonstrange partners

Inspired by the newly observed Lambda(b)(6072) structure, we investigate its strong decay behaviors under various assignments within the P-3(0) model. Compared with the mass and total decay width, our results suggest that the Lambda(b)(6072) can be regarded as the lowest rho-mode excitation in Lambda(b) family. Then, the strong decays of rho-mode nonstrange partners for the Lambda(b)(6072) are calculated. It is found that the J(P) = 5/2(-) Lambda(b) and Lambda(c) states are relatively narrow, and mainly decay into the Sigma((*))(b) pi and Sigma((*))(c) pi final states, respectively. These two states have good potentials to be observed in future experiments, which may help us to distinguish the three-quark model and diquark model.