Nuclear medium effects on the properties of Λ(1405)

Sungu J., Er N.

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, vol.51, no.12, 2024 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 51 Issue: 12
  • Publication Date: 2024
  • Doi Number: 10.1088/1361-6471/ad66eb
  • Journal Name: JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, INSPEC, DIALNET
  • Kocaeli University Affiliated: Yes

Abstract

We study the Lambda(1405) resonance with I(J P ) = 0(1/2-) in the context of the pentaquark hypothesis in the nuclear medium. To explore the influence of the nuclear medium on the physical parameters of Lambda(1405), we propose a molecular-type structure involving admixtures of K - p and K0n , correlated with the nuclear matter density. Our analysis reveals a substantial shift in mass and residue, approximately 20% and 38%, respectively. These findings have significant implications for experimental researchers aiming to identify in-medium characteristics of hyperon resonances.