Signature of  \Lambda(1405)  resonance in the triton and pion momentum spectrum due to stopped negative kaon on  ^4He

Esmaili, Jafar; Mirzaei, Morteza

doi:10.22055/jrmbs.2026.20762

Signature of \Lambda(1405) resonance in the triton and pion momentum spectrum due to stopped negative kaon on ^4He

Document Type : Full length research Paper

Authors

Jafar Esmaili ¹

Morteza Mirzaei ²

¹ Department of Physics, Faculty of Basis Sciences, Shahrekord University, Shahrekord 115

² Department of Physics, Faculty of Basis Sciences, Shahrekord University, Shahrekord, 115

10.22055/jrmbs.2026.20762

Abstract

In present work, the trace of \Lambda(1405) resonance in the triton and pion momentum spectrum due to resonant absorption of stopped kaon on ^4He have been calculated and investigated using the coupled-channel approach. For this purpose, different phenomenological and chiral kaon-nucleon potentials such as Akaishi-Yamazaki, Hyodo-Wise and one and two pole KEK and one and two pole SIDDHARTA have been used. Also, by calculation of the pion and triton deviation momentum spectra, we have shown that the effect of \Lambda(1405) resonance is clearly visible in the spectra and such spectra can yield useful information regarding K\bar N interaction and \Lambda(1405) resonance.

Keywords

Stopped negative kaon

Kaonic nuclei

\Lambda(1405) resonance and Momentum deviation spectrum

Subjects

nuclear physics

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