Theoretical study of the $N(1535)$ in the process $Λ_c^+\to nπ^+π^0$

Abstract

We have investigated the $Λ_c^+\to nπ^+π^0$ decay process using the chiral unitary approach, by considering that the nucleon resonance $N(1535)$ could be dynamically generated through $S$-wave pseudoscalar meson-octet baryon interactions. In the invariant mass distributions of $π^0n$ and $π^+n$, we observe a distinct peak structure associated with the resonance states $N(1535)^0$ and $N(1535)^+$, respectively. Our results suggest that the $Λ_c^+\to nπ^+π^0$ process can be utilized to probe the properties of the nucleon $N(1535)$, and therefore, we encourage more precise experimental measurements of this process in the future.