# $\phi$ meson transparency in nuclei from $\phi N$ resonant interactions

## TL;DR

This paper studies the transparency of $$ mesons in nuclei by analyzing their in-medium interactions, highlighting the importance of direct $ N$ scattering and decay mechanisms, and comparing theoretical predictions with experimental data.

## Contribution

It introduces a model incorporating resonant $ N$ interactions and decay channels, showing these significantly increase the $$ width and align with experimental observations.

## Key findings

- The $$ width in medium is much larger than previous models predicted.
- Experimental data from CLAS, LEPS, and COSY agree with the model.
- Large direct $ N$ scattering contribution is necessary for accurate description.

## Abstract

We investigate the $\phi$ meson nuclear transparency using some recent theoretical developments on the $\phi$ in medium self-energy. The inclusion of direct resonant $\phi N$-scattering and the kaon decay mechanisms leads to a $\phi$ width much larger than in most previous theoretical approaches. The model has been confronted with photoproduction data from CLAS and LEPS and the recent proton induced $\phi$ production from COSY finding an overall good agreement. The results support the need of a quite large direct $\phi N$-scattering contribution to the self-energy.