Monte-Carlo simulation of the 1st order hadron-QGP phase transition in heavy ion collisions using a parton model
https://doi.org/10.29235/1561-2430-2020-56-1-84-91
Abstract
Quark gluon plasma (QGP) is a special state of nuclear matter where quarks and gluons behave like free particles. Recently, a number of investigations of this state with high temperature and/or density have been conducted using collisions of relativistic and ultra-relativistic heavy nuclei. It is accepted that depending on the temperature and density, 1st or the 2nd order phase transitions take place in hadron matter during the formation of QGP. Herein, we have modeled heavy ion collisions using a HIJING Monte-Carlo generator, taking into account the description of the 1st order phase transition as a probabilistic process. We analyzed the behavior of the fluctuations of the total (N = N+ – N–) and resultant (Q = N+ – N–) electric charges of the system. Different phases were introduced using the BDMPS (Baier – Dokshitzer – Mueller – Piegne – Schiff) model of parton energy loss during crossing through a dense nuclear medium.
About the Authors
Yu. A. Rusak
Joint Institute for Power and Nuclear Research – Sosny, of the National Academy of Sciences of Belarus
Belarus
Belarus
Yury A. Rusak – Junior Researcher
99, Akademika Krasina Str., 220109, Minsk
L. F. Babichev
Joint Institute for Power and Nuclear Research – Sosny, of the National Academy of Sciences of Belarus
Belarus
Belarus
Leonid F. Babichev – Ph. D. (Physics and Mathematics), Head of Laboratory
99, Akademika Krasina Str., 220109, Minsk
References
1. Adams J. Experimental and theoretical challenges in the search for the quark gluon plasma: The STAR Collaboration’s critical assessment of the evidence from RHIC collisions. Nuclear Physics A, 2005, vol. 757, pp. 102–183.
2. Blume C. Open questions in the understanding of strangeness production in HIC – Experiment perspective. Proceedings for the Strange Quark Matter 2017 conference. Utrecht, Netherlands, 2017. https://doi.org/10.1051/epjconf/201817103001
3. Biswarup P. Charmonium production in p-Pb collisions with ALICE at the LHC. European Physical Society Conference on High Energy Physics, Italy, 5–12 July 2017. Venice, 2017. https://doi.org/10.22323/1.314.0182
4. Shuryak E. Strongly coupled quark-gluon plasma in heavy ion collisions. Reviews of Modern Physics, 2017, vol. 89, no. 3, pp. 61. https://doi.org/10.1103/RevModPhys.89.035001
5. Koch, P., Muller. B., Rafelski J. From strangeness enchancement to quark gluon plasma discovery. International Journal of Modern Physics A, 2017, vol. 32, no. 31, pp. 1730024. https://doi.org/10.1142/S0217751X17300241
6. Xian Nian Wang, Gyulassy M. HIJING 1.0: A Monte-Carlo Program for Parton Parton and Particle Production in High Energy Hadronic and Nuclear Collisions. Computer Physics Communications, 1994, vol. 83, no. 2–3, pp. 307–331. https://doi.org/10.1016/0010-4655(94)90057-4
7. Baier R., Dokshitzer Yu. L., Mueller A. H., Piegne S., Schiff D. Radiative energy loss of high energy quarks and gluons in a finite volume quark-gluon plasma. Nuclear Physics B, 1997, vol. 483, no. 1–2, pp. 291–320, https://doi.org/10.1016/S0550-3213(96)00553-6
8. Shuryak E. V. Theory of Hadronic Plasma. Journal of Experimental and Theoretical Physics, 1978, vol. 74, pp. 408–420.
9. Bass S. A., Gyulassy M., Stoecker H., Greiner W. Signatures of Quark-Gluon-Plasma formation in high energy heavyion collisions: A critical review. Journal of Physics G: Nuclear and Particle Physics, 1999, vol. 25, no. 3, pp. R1–R57. https://doi.org/10.1088/0954-3899/25/3/013.
10. Fukushima K., Hatsuda T. The Phase Diagram of dense QCD. Reports on Progress in Physics, 2010, vol. 74, no. 1, pp. 014001. https://doi.org/10.1088/0034-4885/74/1/014001
11. Lancu E. QCD in heavy ion collisions. 2012. Available at: https://arxiv.org/abs/1205.0579v1
12. Cleymans J., Oeschler H., Redlich K., Wheaton S. Comprasion of Chemical Freeze-out Criteria in Heavy Ion Collisions. Physical Review C, 2006, vol. 73 no. 3, 15 p. https://doi.org/10.1103/PhysRevC.73.034905
13. Mohanty A. K., Shukla P., Gleiser M. Pre-transitional effects in rapidly expanding quark gluon plasmas. Physical Review C, 2002, vol. 65, no. 3, 7 p. https://doi.org/10.1103/PhysRevC.65.034908
14. Luo X., Xu N. Search for the QCD Critical Point with Fluctuations of Conserved Quantities in Relativistic Heavy-Ion Collisions at RHIC: An Overview. Nuclear Science and Techniques, 2017, vol. 28, no. 8, 42 p. https://doi.org/10.1007/s41365-017-0257-0
15. Baier R., Schiff D., Zakharov B. G. Energy loss in perturbative QCD. Annual Review of Nuclear and Particle Science, 2000, vol. 50, no. 1, pp. 37–69. https://doi.org/10.1146/annurev.nucl.50.1.37
16. Zi-Wei Lin, Che Ming Ko, Bao-An Li, Bin Zhang, Subrata Pal. A Multi-Phase Transport Model for Relativistic Heavy Ion Collisions. Physical Review C, 2005, vol. 72, no. 6, 33 p. https://doi.org/10.1103/PhysRevC.72.064901
17. Heiselberg H. Event-by-event physics in relativistic heavy ion collisions. Physics Reports, 2001, vol. 351, no. 3, pp. 161–194. https://doi.org/10.1016/S0370-1573(00)00140-X
Review
Views: 951
Email this article 