2011
DOI: 10.1016/j.nuclphysa.2011.04.014
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Antiproton-to-proton ratios for ALICE heavy-ion collisions

Abstract: Assuming that the final state of hadronization takes place along the freezeout line, which is defined by a constant entropy density, the antiproton-to-proton ratios produced in heavy-ion collisions are studied in framework of the hadron resonance gas (HRG) model. A phase transition from quark-gluon plasma to hadrons, a hadronization, has been conjectured in order to allow modifications in the phase-space volume and thus in the single-particle distribution function. Implementing both modifications in the grand-… Show more

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Cited by 43 publications
(58 citation statements)
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“…It is obvious that the dip has its minimum value located at a range of temperatures close to T c . That no dip appears in HRG would mean that the equilibrium distribution function should be a subject of modification [20,45]. Last but not least, the higher moments have to be estimated for the lattice data, in order to understand its structure [24].…”
Section: Discussionmentioning
confidence: 99%
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“…It is obvious that the dip has its minimum value located at a range of temperatures close to T c . That no dip appears in HRG would mean that the equilibrium distribution function should be a subject of modification [20,45]. Last but not least, the higher moments have to be estimated for the lattice data, in order to understand its structure [24].…”
Section: Discussionmentioning
confidence: 99%
“…This model seems to provide a good description for the thermal evolution of the thermodynamic quantities in the hadronic matter [12][13][14][15][16][17][18][19][20][21] and has been successfully utilized to characterize the conditions deriving the chemical freeze-out at finite densities [22][23][24]. In light of this, the HRG model can be used in calculating the speed of sound using a grand canonical partition function of an ideal gas with all experimentally observed states up to a certain large mass as constituents.…”
Section: Introductionmentioning
confidence: 99%
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“…To study the dynamics and velocity distribution of objects in such thermal background, like transport properties in quark-gluon plasma, Fokker-Planck equation is a well-known tool. The statistical properties of an ensemble consisting of individual parton objects is given by non-equilibrium single-particle distribution function f [4][5][6]. The probability of finding an object in infinitesimal region in phase space is directly proportional to the volume element and f .…”
Section: Particle Production and Non-equilibrium Particle Distribmentioning
confidence: 99%