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Reconstructing the final state of Pb+Pb collisions at √S NN = 2.76 TeV
Title Reconstructing the final state of Pb+Pb collisions at √S NN = 2.76 TeV Par.title Reconstructing the final state of Pb plus Pb collisions at root s(NN)=2.76TeV Author info Ivan Melo, Boris Tomášik Author Melo Ivan (50%)
Co-authors Tomášik Boris 1972- (50%) UMBFP06 - Katedra fyziky
Source document Journal of Physics G: Nuclear and Particle Physics. Vol. 43, no. 1 (2016), pp. 1-18. - Bristol : IOP Publishing, 2016 Keywords fyzika - physics zrážky ťažkých iónov heavy ion collisions Language English Country Great Britian systematics 53 Annotation We fit the single-hadron transverse-momentum spectra measured in Pb+Pb collisions at root sNN = 2.76 TeV with the blast-wave model that includes production via resonance decays. Common fit to pions, kaons, (anti)protons, and lambdas yields centrality dependence of the freeze-out temperature and transverse expansion velocity. In the most central collisions we see T = 98 MeV and nu(t) = 0.654. The K* resonance fits into this picture but the phi meson might freeze-out a little earlier. Multi-strange baryons seem to decouple at higher temperature and weaker transverse flow. Within our model we observe hints of chemical potential for the charged pions. Public work category ADC No. of Archival Copy 37336 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika 
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