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Light fragment production at CERN Super Proton Synchrotron

  • Yu. B. IvanovEmail author
  • A. A. Soldatov
Regular Article - Theoretical Physics

Abstract.

Recent data on the deutron and 3He 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 at midrapidity do not agree that nicely with the experimental data. The latter apparently indicate that coalescence coefficients should be temperature and/or momentum dependent.

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Copyright information

© SIF, Springer-Verlag GmbH Germany, part of Springer Nature 2017

Authors and Affiliations

  1. 1.National Research Centre “Kurchatov Institute”MoscowRussia
  2. 2.National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)MoscowRussia
  3. 3.Bogoliubov Laboratory of Theoretical Physics, JINRDubnaRussia

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