Scientific Bulletin of Namangan State University


The experimental invariant transverse momentum (pt) spectra of the charged pions and kaons, protons and antiprotons, produced at midrapidity in central (0-10%) Au+Au collisions at (snn)1/2= 200 GeV at Relativistic Heavy Ion Collider (RHIC, Brookhaven, USA) and measured by BRAHMS collaboration, were analyzed using three different transverse expansion (blast-wave) models.

First Page


Last Page



[1.] E. V. Shuryak. What RKTI experiments and theory tell us about properties of quark– gluon plasma? Nucl. Phys. A 750, 64 (2005). [2.] S. Chatrchyan et al. (CMS Collaboration). Observation and studies of jet quenching in PbPb collisions at (snn)1/2=2.76 TeV. Phys. Rev. C 84, 024906 (2011). [3.] H. Song et al. Erratum: 200 A GeV Au+Au Collisions Serve a Nearly Perfect Quark- Gluon Liquid [Phys. Rev. Lett. 106, 192301 (2011)]. Phys. Rev. Lett. 109, 139904 (2012). [4.] J. Rafelski. Melting hadrons, boiling quarks. Eur. Phys. J A 51, 114 (2015). [5.] R. Hagedorn, Multiplicities, pt Distributions and the Expected Hadron → Quark - Gluon Phase Transition. Riv. Nuovo Cim. 6N10, 1 (1983). [6.] C. Tsallis. Possible generalization of Boltzmann-Gibbs statistics. J. Statist. Phys. 52, 479 (1988). [7.] C. Tsallis. Nonadditive entropy: The concept and its use. Eur. Phys. J. A 40, 257 (2009).





To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.