Kaon Modification in Pion Medium

• DOI: 10.48550/arxiv.2502.00819
• Publication Date: 2025-02-02
• Authors: Yu. B. Ivanov
• Keywords: Nuclear Theory (nucl-th); High Energy Physics - Phenomenology; High Energy Physics - Phenomenology (hep-ph); Nuclear Theory; FOS: Physical sciences

Kaon properties in pion medium are studied. The dense is produced high-energy heavy-ion collisions. consideration based on the chiral nucleon-kaon-pion Lagrangian. It found that does not produce a substantive contribution but enhances effect of baryon matter. Numerical estimate shows this enhancement factor induced by exceed 11\% at freeze-out stage collisions, i.e. it small. However, impact can be higher actual nuclear collisions because in-medium (anti)kaon modification accumulated during evolution before when density higher.