# Initial Stages 2021

Jan 10 – 15, 2021
Weizmann Institute of Science
Asia/Jerusalem timezone
See you at IS2023 in Copenhagen in June 2023

## In-medium properties of $\eta$ mesons

Jan 10, 2021, 7:45 PM
1h 30m
Patio (vDLCC)

### Patio

#### vDLCC

bullet talk (poster) The initial stages of heavy-ion collisions

Rajesh Kumar

### Description

We study the modification of $\eta$ meson mass in a medium comprise of nucleons and hyperons. The interaction terms for the $\eta$ mesons are derived using chiral hadronic mean field SU(3) model. Within chiral SU(3) model, in-medium properties of nucleons and hyperons are modified through their interactions with the scalar ($\sigma$, $\zeta$ and $\delta$) and vectors fields ($\omega$, $\rho$ and $\phi$). We solve the coupled equations of motion for these scalar and vector fields for finite strangeness fraction and isospin asymmetry of the medium and evaluate the optical potentials of $\eta$ mesons in hot and dense matter. The present results on in-medium properties may play an important role in understanding $\eta$-nuclei bound states and also the photo-production of $\eta$ mesons.

### Primary authors

Dr Arvind Kumar (D Dr. B R Ambedkar National Institute of Technology Jalandhar, )