Hadron interferences in the proton induced coherent $\eta$ meson production reaction on a scalar-isovector nucleus

Abstract

The coherent $\eta$ meson energy $E_{\eta }$ distribution spectra in the proton nucleus reaction have been calculated to investigate the ${\pi }^0-\eta$ mesons' interference, in addition to the study of resonance $N^{\ast }$ dynamics in the nucleus. The elementary reaction occurring in the nucleus is assumed to proceed as $pN\to p{N}^{\ast }$; $N^{\ast }\to N\eta$. Born terms in the intermediate state is also considered. In a scalar-isovector nucleus, this reaction occurs because of ${\pi }^0$ and $\eta$ meson exchange interactions for the forward going proton and $\eta$ meson; other meson exchange potentials do not contribute in this process. The sensitivity of the cross section to the hadron nucleus interactions, and the beam energy dependence of the cross section are studied for this reaction.

20 pages, 5 figures

References in corpus (5)

• Differential cross sections for the reactions gamma p-> p eta and gamma p -> p eta-prime
• Search for $\eta$-mesic nuclei in recoil-free transfer reaction
• ${\pi }^{+}{\pi }^{-}$ Emission from Coherent ${\rho }^0$ Propagation in Nuclei
• Resonance dynamics in the coherent $\eta$ meson production in the $(p,p^{\prime })$ reaction on the spin-isospin saturated nucleus
• Inclusive Photoproduction of $\eta$ Mesons on Nuclei and the in-medium properties of the S${}_{11}$ Resonance

Cited by in corpus (2)

• Semihadronic and hadronic decays of ${\rho }^0$ and $\omega$ mesons coherently photoproduced in the isoscalar nuclei
• Forward coherent $\omega$ and $\varphi$ mesons production in the photon induced reaction on nuclei