Theoretical study of the $N(1535)$ in the process $\Lambda_c^+\to n\pi^+\pi^0$

Ruitian Li; Xuan Luo; Hao Sun

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arXiv · 2504.14608

Theoretical study of the $N(1535)$ in the process $\Lambda_c^+\to n\pi^+\pi^0$

Ruitian Li·Xuan Luo·Hao Sun

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Abstract

We have investigated the $\Lambda_c^+\to n\pi^+\pi^0$ 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 $\pi^0n$ and $\pi^+n$, we observe a distinct peak structure associated with the resonance states $N(1535)^0$ and $N(1535)^+$, respectively. Our results suggest that the $\Lambda_c^+\to n\pi^+\pi^0$ 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.

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Ruitian Li, Xuan Luo, Hao Sun. 2025-04-20. Theoretical study of the $N(1535)$ in the process $\Lambda_c^+\to n\pi^+\pi^0$. https://arxiv.org/abs/2504.14608

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