Authors & Affiliations

D’yachenko A.T.1, Mitropolsky I.A.2
1Emperor Alexander I Petersburg State Transport University, Saint Petersburg, Russia
2B.P.Konstantinov Petersburg Nuclear Physics Institute, Gatchina, Russia

D’yachenko A.T. – Dr. Sci.(Phys.-Math.), professor, Emperor Alexander I Petersburg State Transport University. Contacts: 9 Moskovsky pr., Saint Petersburg, Russia, 190031. Tel.: +7 (812) 457-86-28, e-mail This email address is being protected from spambots. You need JavaScript enabled to view it..
Mitropolsky I.A. – Head of the laboratory, Dr. Sci.(Phys.-Math.), B.P.Konstantinov Petersburg Nuclear Physics Institute.

Abstract

Within the framework of the hydrodynamic approach, we carried out the investigation of a non-equilibrium equation of state. We noted the prospect of hydrodynamic approach in nuclear physics We considered the compression, expansion and freeze-out stages of a hot spot formed in heavy-ion collisions. The calculated energy spectra of protons produced in heavy-ion collisions have been compared with the experimental data for the different combinations of colliding nuclei in the energy range from a few tens to hundreds of MeV per nucleon, and with the results of calculations by the method based on the solution of the Vlasov-Uehling-Uhlenbeck (VUU) kinetic equation. This work is dedicated to the Konstantin Alexandrovich Gridnev memory.

Keywords
non-equilibrium equation of state, hydrodynamics, heavy ions, double differential cross sections of proton emission, kinetic equation

Article Text (PDF, in Russian)

References

UDC 539.172.17

Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants, 2016, issue 2, 2:6