Scaling properties at freeze-out in relativistic heavy-ion collisions

0365894 - ÚJF 2012 RIV US eng J - Journal Article
Aggarwal, M. M. - Ahammed, Z. - Alakhverdyants, A. V. - Bielčíková, Jana - Chaloupka, Petr - Kapitán, Jan - Chung, Paul - Kouchpil, V. - Tlustý, David - Šumbera, Michal … Total 362 authors
Scaling properties at freeze-out in relativistic heavy-ion collisions.
Physical Review. C. Roč. 83, č. 3 (2011), 034910/1-034910/11. ISSN 0556-2813
R&D Projects: GA MŠMT LA09013
Institutional research plan: CEZ:AV0Z10480505
Keywords : QCD * THERMODYNAMICS * SEARCH
Subject RIV: BJ - Thermodynamics
Impact factor: 3.308, year: 2011

Identified charged pion, kaon, and proton spectra are used to explore the system size dependence of bulk freeze-out properties in Cu + Cu collisions at root s(NN) = 200 and 62.4 GeV. The data are studied with hydrodynamically motivated blast-wave and statistical model frameworks in order to characterize the freeze-out properties of the system. The dependence of freeze-out parameters on beam energy and collision centrality is discussed. Using the existing results from Au + Au and pp collisions, the dependence of freeze-out parameters on the system size is also explored. This multidimensional systematic study furthers our understanding of the QCD phase diagram revealing the importance of the initial geometrical overlap of the colliding ions.
Permanent Link: http://hdl.handle.net/11104/0201033