$\varphi$ meson transparency in nuclei from $\varphi N$ resonant interactions

Abstract

We investigate the $\varphi$ meson nuclear transparency using some recent theoretical developments on the $\varphi$ in medium self-energy. The inclusion of direct resonant $\varphi N$-scattering and the kaon decay mechanisms leads to a $\varphi$ 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 $\varphi$ production from COSY finding an overall good agreement. The results support the need of a quite large direct $\varphi N$-scattering contribution to the self-energy.

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Cited by in corpus (13)

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