A study of the φN correlation function

Author(s)

Abreu, Luciano M. ; Gubler, Philipp ; Khemchandani, K. P. ; Torres, A. Martinez ; Hosaka, Atsushi

• Document type: Journal article
• Source: Physics Letters B; v. 860, p. 7-pg., 2024-12-10.

Abstract

The femtoscopic phi N correlation function is studied within a hadronic effective Lagrangian approach with coupled channels, based on hidden local symmetry. The results are compared with the data recently reported by the ALICE collaboration. We find that the correlation function has very different features for the phi N system in the spin 1/2 and 3/2 configurations, with the spin-averaged combination matching well with the experimental data. A strong attraction, leading to the formation of a phi N bound state or a very prominent cusp is found in the spin 3/2 case. The correlation function for spin 1/2, on the other hand, is strongly impacted by the negative parity N*(1895) nucleon resonance. (AU)

• FAPESP's process: 22/08347-9 - New and enigmatic hadrons
• Grantee: Kanchan Pradeepkumar Khemchandani
• Support Opportunities: Regular Research Grants
• FAPESP's process: 23/01182-7 - Physics of exotic hadrons
• Grantee: Alberto Martinez Torres
• Support Opportunities: Regular Research Grants