Research on origin of cosmos p-nuclei with the SLEGS γ-ray beamline at Shanghai light source
Abstract
<p indent="0mm">This work provides an overview of the origin of the p-nuclei in the cosmos, problems with p-process models, as well as possible solutions on the nuclear physics aspect. The Shanghai Laser Electron Gamma Source (SLEGS) based on Shanghai Light Source is the first experimental facility capable of generating quasi-monoenergetic γ-ray beams in China. SLEGS can provide the unique experimental conditions for photonuclear reaction measurements. Based on the established detection systems for measuring various types of outgoing particles, this paper lists a series of photonuclear reaction experiments of p-process importance to be carried out. Such experimental studies will effectively constrain the theoretical statistical model of nuclear reactions, and provide reliable nuclear-physics inputs for understanding the origin of the rarest nuclides <sup>180</sup>Ta<sup>m</sup> and <sup>138</sup>La in the solar system, as well as the underproduction problem of p-nuclei, such as Mo and Ru.</p>
