TY  - INPR
A1  - Bleicher, Marcus
A1  - Bratkovskaya, Elena L.
A1  - Vogel, Sascha
A1  - Zhu, Xianglei
T1  - Transverse pressure and strangeness dynamics in relativistic heavy-ion reactions
N2  - Transverse hadron spectra from proton-proton, proton-nucleus and nucleus-nucleus collisions from 2 AGeV to 21.3 ATeV are investigated within two independent transport approaches (HSD and UrQMD). For central Au+Au (Pb+Pb) collisions at energies above E lab ~ 5 AGeV, the measured K +- transverse mass spectra have a larger inverse slope parameter than expected from the default calculations. The additional pressure - as suggested by lattice QCD calculations at finite quark chemical potential mu q and temperature T - might be generated by strong interactions in the early pre-hadronic/partonic phase of central Au+Au (Pb+Pb) collisions. This is supported by a non-monotonic energy dependence of v2/pT in the present transport model.
Y1  - 2005
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/3433
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30-19854
ER  -