Resonance dynamics in the coherent $\eta$ meson production in the $(p,p^{\prime })$ reaction on the spin-isospin saturated nucleus

Abstract

For the forward going proton and $\eta$ meson, the coherent $\eta$ meson production in the $(p,p^{\prime })$ reaction on the spin-isospin saturated nucleus occurs only due to the $\eta$ meson exchange interaction between the beam proton and nucleus. In this process, the nucleon in the nucleus can be excited to resonances $N^{\ast }$ and the $\eta$ meson in the final state can arise due to $N^{\ast }\to N\eta$. We investigate the dynamics of resonances, including nucleon Born terms, and their interferences in the coherently added cross section of this reaction. We discuss the importance of $N(1520)$ resonance and show the sensitivity of the cross section to the hadron nucleus interaction.

arXiv comment15 pages, 4 figures

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Cited by in corpus (3)

• Semihadronic and hadronic decays of ${\rho }^0$ and $\omega$ mesons coherently photoproduced in the isoscalar nuclei
• Hadron interferences in the proton induced coherent $\eta$ meson production reaction on a scalar-isovector nucleus
• Forward coherent $\omega$ and $\varphi$ mesons production in the photon induced reaction on nuclei