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Theoretical study of the N(1535) in the process Λc+→nπ+π0

Ruitian Li1,*, Xuan Luo2,†, and Hao Sun1,‡

  • 1Institute of Theoretical Physics, School of Physics, Dalian University of Technology, No.2 Linggong Road, Dalian, Liaoning 116024, People’s Republic of China
  • 2School of Physics and Optoelectronics Engineering, Anhui University, Hefei, Anhui 230601, People’s Republic of China

  • *Contact author: liruitian@mail.dlut.edu.cn
  • †Contact author: xuanluo@ahu.edu.cn
  • ‡Contact author: haosun@dlut.edu.cn
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Phys. Rev. D 112, 014045 – Published 31 July, 2025

DOI: https://doi.org/10.1103/g5lp-dh31

Abstract

We have investigated the Λc+→nπ+π0 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 π0n 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 Λc+→nπ+π0 process can be utilized to probe the properties of the nucleon N(1535). Therefore, we encourage more precise experimental measurements of this process in the future.

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Phys. Rev. D 112, 014045– Published 31 July, 2025
  • Received 22 April 2025
  • Accepted 5 July 2025
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