Nuclear coherent $\pi^0$ photoproduction with charge-exchange and spin-flip rescattering
Nuclear Theory
2024-08-01 v2 High Energy Physics - Phenomenology
Abstract
In this work, we present an updated model for nuclear photoproduction, which incorporates pion second-order rescattering on intermediate excited nuclear states. Our approach is based on the distorted wave impulse approximation in momentum space. The many-body medium effects are incorporated in the complex effective self-energy, employing the results of the recently developed second-order pion-nucleus scattering potential. The experimental data for C and Ca are successfully described without the need to fit the model parameters of the photoproduction amplitude as a result of incorporating the second-order part of nuclear photoproduction potential, which involves intermediate nucleon spin-flip and charge exchange.
Keywords
Cite
@article{arxiv.2403.08608,
title = {Nuclear coherent $\pi^0$ photoproduction with charge-exchange and spin-flip rescattering},
author = {Viacheslav Tsaran and Marc Vanderhaeghen},
journal= {arXiv preprint arXiv:2403.08608},
year = {2024}
}