$\varphi$ 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.

References in corpus (10)

• K*(892)${}^0$ and $\Phi$(1020) production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• phi photo-production from Li, C, Al, and Cu nuclei at Egamma=1.5 - 2.4 GeV
• Chiral approach to antikaon s- and p-wave interactions in dense nuclear matter
• Interaction of vector mesons with baryons and nuclei
• Measurement of the in-medium phi-meson width in proton-nucleus collisions
• Data analysis techniques, differential cross sections, and spin density matrix elements for the reaction $\gamma p\to \varphi p$
• Precision measurement of the quasi-free pn->dphi reaction close to threshold
• $\varphi$ meson self-energy in nuclear matter from $\varphi N$ resonant interactions
• Near-threshold $\varphi$ meson production in proton-nucleus reactions and $\varphi$ width in finite nuclei
• A-dependence of phi-meson production in p+A collisions