Extended soft wall model with background related to features of QCD thermodynamics
Extended soft wall model with background related to features of QCD thermodynamics
Zöllner, R.; Kämpfer, B.
Abstract
The soft wall model is extended to accommodate at the same time (i) approximately linear ρ meson Regge trajectories at zero temperature T, (ii) various options for the thermodynamics with reference to QCD (cross over or second-order transition or first-order transition at Tc), and (iii) the appearance of vector meson states at T≤Tc. While the vector meson masses display some modest model dependence very near to Tc, they stay below Tc to good accuracy independent of the temperature, that is nearly as at T=0, thus being very consistent with the thermo-statistical models widely employed in analyses of the hadron yields in relativistic heavy-ion collisions in a region where baryon densitiy effects can be neglected and the vacuum hadron masses are used.
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Contribution to WWW
https://arxiv.org/abs/1701.01398 -
European Physical Journal A 53(2017), 139
DOI: 10.1140/epja/i2017-12328-0
Cited 7 times in Scopus
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Permalink: https://www.hzdr.de/publications/Publ-24780