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Non-equilibrium hadronisation and event-by-event fluctuations of rapidity distributions
Title Non-equilibrium hadronisation and event-by-event fluctuations of rapidity distributions Author info Boris Tomášik ... [et al.] Author Tomášik Boris 1972- (25%) UMBFP06 - Katedra fyziky
Co-authors Melo Ivan (25%)
Koróny Samuel 1958- (25%) UMBEF14 - Inštitút ekonomických vied
Gintner Mikuláš (25%) UMBFP12 - Inštitút matematiky a informatiky
Source document Indian Journal of Physics. Vol. 85, no. 7 (2011), pp. 1097-1101. - Kolkata : Indian Association for the Cultivation of Science, 2011 Keywords kvarkovo-gluónová plazma ultrarelativistické jadrové zrážky non-equilibrium statistics particle production Language English Country India systematics 539 Annotation Expansion of the fireball in ultrarelativistic nuclear collisions is very swift. Thus the eventual phase transition is very likely to proceed in non-equilibrium way. This is rather well known in case of first-order phase transitions: if a system expands with a rate higher than the scattering rate of its constituents then it is likely to reach the point of spinodal and suddenly disintegrate into droplets. (Such effect is clearly present in multifragmentation in nuclear collisions at few hundred MeV per nucleon.) The transition from hadronic to partonic matter is of first order at some non-vanishing value of baryochemical potential, while it is a crossover at vanishing mu_B and most likely in the domain of RHIC and LHC. Nevertheless, in the latter case fragmentation of the fireball at hadronisation is also possible due to sudden increase of bulk viscosity at Tc. We propose a method to search for droplets (or other interesting effects) via inspecting rapidity spectra. Public work category ADC No. of Archival Copy 19842 Repercussion category HALDAR, P. K. - MANNA, S. K. - SAHA, P. - GHOSH, D. Dynamical fluctuations of pions for ring and jet-like events at SPS energy: an in-depth study with factorial correlator. In Indian journal of physics. ISSN 0973-1458, 2012, vol. 86, no. 12, pp. 1155-1162.
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