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We study the three-body decay of the newly observed bottom baryon$\Lambda_b^*(6072)$ by LHCb; $\Lambda_b^*(6072) \to \Lambda_b \pi \pi$. Itsmass about 500 MeV above the ground state $\Lambda_b$ and a broad width implythat the state could be an analogue of the Roper resonance of the nucleon$N(1440)$. In terms of sequential processes going through $\Sigma_b$ and$\Sigma_b^*$, we find that the observed invariant mass distribution isreproduced assuming its spin and parity $J^P = 1/2^+$. We discuss that theratio of the two sequential processes and angular correlation of two pions areuseful for the determination of spin and parity. We suggest further studies forthe Roper resonance analogue in various flavor contents, raising an interestingand important question in baryon spectroscopy.

Roper-like resonances with various flavor contents and their two-pion emission decays