Bazavov, A. and Ding, H. -T. and Hegde, P. and Kaczmarek, O. and Karsch, F. and Laermann, E. and Mukherjee, Swagato and Ohno, H. and Petreczky, P. and Schmidt, C. and Sharma, S. and Soeldner, W. and Wagner, M. (2016) Curvature of the freeze-out line in heavy ion collisions. PHYSICAL REVIEW D, 93 (1): 014512. ISSN 2470-0010, 2470-0029
Full text not available from this repository.Abstract
We calculate the mean and variance of net-baryon number and net-electric charge distributions from quantum chromodynamics (QCD) using a next-to-leading order Taylor expansion in terms of temperature and chemical potentials. We compare these expansions with experimental data from STAR and PHENIX, determine the freeze-out temperature in the limit of vanishing baryon chemical potential, and, for the first time, constrain the curvature of the freeze-out line through a direct comparison between experimental data on net-charge fluctuations and a QCD calculation. We obtain a bound on the curvature coefficient, kappa(f)(2) < 0.011, that is compatible with lattice QCD results on the curvature of the QCD transition line.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | FLUCTUATIONS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Mar 2019 13:39 |
| Last Modified: | 14 Mar 2019 13:39 |
| URI: | https://pred.uni-regensburg.de/id/eprint/2525 |
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