HBT search for new states of matter in A+A collisions

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dc.creatorAkkelin, S. V.
dc.creatorSinyukov, Yu. M.
dc.date2005-05-16
dc.date2006-01-20
dc.date.accessioned2026-07-07T11:44:21Z
dc.date.available2026-07-07T11:44:21Z
dc.descriptionA method allowing studies of the hadronic matter at the early evolution stage in A+A collisions is developed. It is based on an interferometry analysis of approximately conserved values such as the averaged phase-space density (APSD) and the specific entropy of thermal pions. The plateau found in the APSD behavior vs collision energy at SPS is associated, apparently, with the deconfinement phase transition at low SPS energies; a saturation of this quantity at the RHIC energies indicates the limiting Hagedorn temperature for hadronic matter. It is shown that if the cubic power of effective temperature of pion transverse spectra grows with energy similarly to the rapidity density (that is roughly consistent with experimental data), then the interferometry volume is inverse proportional to the pion APSD that is about a constant because of limiting Hagedorn temperature. This sheds light on the HBT puzzle.
dc.description23 pages, 8 figures, minor corrections
dc.identifierhttps://arxiv.org/abs/nucl-th/0505045
dc.identifierhttp://arxiv.org/abs/nucl-th/0505045
dc.identifierPhys.Rev.C73:034908,2006
dc.identifierdoi:10.1103/PhysRevC.73.034908
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/201573
dc.subjectNuclear Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Experiment
dc.titleHBT search for new states of matter in A+A collisions
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