Medium effects on freeze-out of light clusters at NICA energies

Abstract

We estimate the chemical freeze-out of light nuclear clusters for NICA energies of above 2 A GeV. On the one hand we use results from the low energy domain of about 35 A MeV, where medium effects have been shown to be important to explain experimental results. On the high energy side of LHC energies the statistical model without medium effects has provided results for the chemical freeze-out. The two approaches extrapolated to NICA energies show a discrepancy that can be attributed to medium effects and that for the deuteron/proton ratio amounts to a factor of about three. These findings underline the importance of a detailed investigation of light cluster production at NICA energies.

arXiv comment10 pages, 4 figures, accepted for publication in Phys. Part. Nucl. Lett; typo in Eq. (6) corrected in v2

References in corpus (18)

• Composition and thermodynamics of nuclear matter with light clusters
• Hadron production in central nucleus-nucleus collisions at chemical freeze-out
• Comparison of Chemical Freeze-Out Criteria in Heavy-Ion Collisions
• Statistical Model for a Complete Supernova Equation of State
• Relativistic model for nuclear matter and atomic nuclei with momentum-dependent self-energies
• Light nuclei quasiparticle energy shift in hot and dense nuclear matter
• Antimatter production in proton-proton and heavy-ion collisions at ultrarelativistic energies
• Experimental determination of the symmetry energy of a low density nuclear gas
• Laboratory Tests of Low Density Astrophysical Equations of State
• Production of deuterium, tritium, and ${}^3$He in central Pb+Pb collisions at 20A, 30A, 40A, 80A, and 158A GeV at the CERN SPS
• Nuclear matter equation of state including few-nucleon correlations $(A\le 4)$
• Constraining supernova equations of state with equilibrium constants from heavy-ion collisions
• Event simulation based on three-fluid hydrodynamics for collisions at energies available at the Dubna Nuclotron-based Ion Collider Facility and at the Facility for Antiproton and Ion Research in Darmstadt
• Cluster virial expansion for nuclear matter within a quasiparticle statistical approach
• The equation of state and symmetry energy of low density nuclear matter
• Light cluster production at NICA
• Net-proton number kurtosis and skewness in nuclear collisions: Influence of deuteron formation
• Light fragment production at CERN Super Proton Synchrotron

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• Structure formation during phase transitions in strongly interacting matter
• Cluster production and the chemical freeze-out in expanding hot dense matter
• Strangeness and light fragment production at high baryon density
• Light-nuclei production in heavy-ion collisions within a thermodynamical approach