Exclusive photoproduction on nuclei
Phys. Rev. C 112, 015206 – Published 14 July, 2025
DOI: https://doi.org/10.1103/6j26-ht6s
Abstract
Motivated by recent experimental developments, the Pomeron constituent quark model (Pom-CQM) of the reaction of Lee et al. [Eur. Phys. J. A 58, 252 (2022)] and Sakinah et al. [Phys. Rev. C 109, 065204 (2024)] is applied to predict the exclusive photoproduction on nuclei . Within the multiple scattering theory, the calculations are performed by including the impulse amplitude and the -nucleus final state interaction (FSI) amplitude . For the deuteron target, is calculated exactly using the wave function generated from the realistic nucleon-nucleon potentials. It is found that, near the threshold region, the photoproduction cross sections depend sensitively on the state of the deuteron wave function. The FSI amplitude is calculated using the first-order optical potential constructed from the scattering amplitude generated from the employed Pom-CQM. It turns out that the FSI has significant effects in the large momentum-transfer region. By using the conventional fixed scatter approximation (FSA) and the nuclear form factors from the variational Monte Carlo (VMC) calculations of Lonardoni et al. [Phys. Rev. C 96, 024326 (2017)], the cross sections of the photo production on , , and are also predicted for future experimental investigations at Jefferson Lab and the Electron-Ion Collider.