Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2013, Vol. 24 ›› Issue (5): 050515 doi: 10.13538/j.1001-8042/nst.2013.05.015

Special Issue: Special Section on International Workshop on Nuclear Dynamics in Heavy-Ion Reaction (IWND2012)

• Special Section on International Workshop on Nuclear Dynamics in Heavy-Ion Reaction (IWND2012) • Previous Articles     Next Articles

On ring and bubble formations in heavy ion collisions

CHEREVKO Kostyantyn1,2,3  SU Jun1,2  BULAVIN Leonid3  SYSOEV Volodymyr3#br# ZHANG FengShou1,2,4,*     

  1. 1College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875,China
    2Beijing Radiation Center, Beijing 100875,China
    3Physics Department, Taras Shevchenko National University of Kyiv, 4 Glushkova av., Kyiv 03022, Ukraine
    4Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000,China  
  • Received:2013-06-27
  • Contact: ZHANG FengShou CHEREVKO Kostyantyn E-mail:,
  • Supported by:

    Supported by National Natural Science Foundation of China (NSFC) projects (Nos.11025524 and 11161130520) and National Basic Research Program of China (2010CB832903) and Ministry of Education, Science Youth and Sports of Ukraine project (No. M/175-2012)

CHEREVKO Kostyantyn, SU Jun, BULAVIN Leonid, SYSOEV Volodymyr, ZHANG FengShou. On ring and bubble formations in heavy ion collisions.Nuclear Science and Techniques, 2013, 24(5): 050515     doi: 10.13538/j.1001-8042/nst.2013.05.015


The work is devoted to the implementation of the hydrodynamic laws to the head-on heavy ion collisions within the energy range 50–100 MeV/A. The hydrodynamic mechanisms of the bubble and ring structures formation are investigated. It is shown that there is a possible hydrodynamic explanation of the different structures being formed in the case of soft (K=200 MeV) and stiff (K=400 MeV) equations of state. Within the suggested approach the final geometry of the system is defined in the initial stage of the collision and is very dependent on the sound velocity in the nuclear matter. The obtained results are in a good correspondence with the Boltzmann-like transport theory calculations and the experimental data for the selected energy range.


Key words: Nuclear incompressibility, Head-on collisions, Hydrodynamics