Light fragment production at CERN Super Proton Synchrotron

Abstract

Recent data on the deutron and ${}^3$He production in central Pb+Pb collisions at the CERN Super Proton Synchrotron (SPS) energies measured by the NA49 collaboration are analyzed within the model of the three-fluid dynamics (3FD) complemented by the coalescence model for the light-fragment production. The simulations are performed with different equations of state---with and without deconfinement transition. It is found that scenarios with the deconfinement transition are preferable for reproduction rapidity distributions of deuterons and ${}^3$He, the corresponding results well agree with the experimental data. At the same time the calculated transverse-mass spectra of ${}^3$He at midrapidity do not that nice agree with the experimental data. The latter apparently indicates that coalescence coefficients should be temperature and/or momentum dependent.

7 pages, 7 figures, 1 table, version accepted for publication in Eur. Phys. J. A

References in corpus (10)

• Hypernuclei, dibaryon and antinuclei production in high energy heavy ion collisions: Thermal production vs. Coalescence
• Production of deuterium, tritium, and ${}^3$He in central Pb+Pb collisions at 20A, 30A, 40A, 80A, and 158A GeV at the CERN SPS
• Centrality dependence of proton and antiproton spectra in Pb+Pb collisions at 40A GeV and 158A GeV measured at the CERN SPS
• Lattice QCD Constraints on the Nuclear Equation of State
• 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
• Centrality and Energy Dependence of Proton, Light Fragment and Hyperon Production
• Dynamical Freeze-out in 3-Fluid Hydrodynamics
• Alternative Scenarios of Relativistic Heavy-Ion Collisions: III. Transverse Momentum Spectra
• On freeze-out problem in relativistic hydrodynamics
• Light cluster production at NICA

Cited by in corpus (5)

• Light nuclei production in relativistic heavy ion collisions from the AMPT model
• Overview of light nuclei production in relativistic heavy-ion collisions
• Update of the Three-fluid Hydrodynamics-based Event Simulator: light-nuclei production in heavy-ion collisions
• Medium effects on freeze-out of light clusters at NICA energies
• Light-nuclei production in heavy-ion collisions within a thermodynamical approach