Feeddown contributions from unstable nuclei in relativistic heavy-ion collisions

• DOI: 10.1016/j.physletb.2020.135746
• Publication Date: 2020-08-31T15:22:59Z
• Authors: Volodymyr Vovchenko; Benjamin Dönigus; Behruz Kardan; Manuel Lorenz; Horst Stoecker
• Keywords: Beam energy

We estimate the feeddown contributions from decays of unstable $A = 4$ and 5$ nuclei to final yields protons, deuterons, tritons, $^3$He, $^4$He produced in relativistic heavy-ion collisions at $\sqrt{s_{\rm NN}} > 2.4$ GeV, using statistical model. The contribution effects do not exceed 5% LHC top RHIC energies due large penalty factors involved, but are substantial intermediate collision energies. observe for \lesssim 10$ where they may account as much 70% yield lower end considered. Sizable ($>10$%) deuteron observed GeV. results suggest that excited cannot be neglected ongoing future analysis light production energies, including HADES CBM experiments FAIR, NICA JINR, beam energy scan fixed-target programmes, NA61/SHINE CERN. further show freeze-out curve $T$-$\mu_B$ plane itself is affected significantly by high baryochemical potential.