Recent Results on Proton and Light Nuclei (d, t) Production from the BM@N Experiment at NICA

Abstract

This work presents the recent results on the production of protons, deuterons and tritons from the BM@N experiment at the NICA accelerator complex. Transverse momentum spectra and rapidity distributions of \(p\), \(d\), \(t\) are measured in centrality selected Ar + nucleus collisions at the beam kinetic energy of 3.2 GeV per nucleon. The system size dependence of the baryon rapidity loss is presented. The deuteron-to-proton ratio as a function of the center-of-mass rapidity is obtained in various reaction systems. The target mass dependence of the entropy per baryon \({S \mathord{\left/ {\vphantom {S A}} \right. \kern-0em} A}\) is studied and the energy dependence for \({S \mathord{\left/ {\vphantom {S A}} \right. \kern-0em} A}\) is addressed.