Nuclear in-medium effects on $\eta$ dynamics in proton-nucleus collisions

Abstract

The dynamics of $\eta$ meson produced in proton-induced nuclear reactions via the decay of N${}^{\ast }(1535)$ has been investigated within the Lanzhou quantum molecular dynamics transport model (LQMD). The in-medium modifications of the $\eta$ production in dense nuclear matter are included in the model, in which an attractive $\eta$-nucleon potential is implemented. The impact of the $\eta$ optical potential on the $\eta$ dynamics is investigated. It is found that the attractive potential leads to the reduction of high-momentum (kinetic energy) production from the spectra of momentum distributions and inclusive cross sections and increasing the reabsorption process by surrounding nucleons.

5 pages, 4 figures. arXiv admin note: text overlap with arXiv:1509.04792

References in corpus (2)

• In-medium nuclear interactions of low-energy hadrons
• Dynamical analysis on heavy-ion fusion reactions near Coulomb barrier

Cited by in corpus (7)

• Nuclear cluster structure effect on elliptic and triangular flows in heavy-ion collisions
• Investigation of giant dipole resonance in heavy deformed nuclei with the EQMD model
• Mean free path and shear viscosity in central ${}^{129}$Xe+${}^{119}$Sn collisions below 100 MeV/nucleon
• Effect of in-medium nucleon-nucleon cross section on proton-proton momentum correlation in intermediate energy heavy-ion collision
• Preequilibrium particle emissions and in-medium effects on the pion production in heavy-ion collisions
• Study of a background reconstruction method for the measurement of D-meson azimuthal angular correlations
• Isospin effect in peripheral heavy-ion collisions at Fermi energies