Curvature of the freeze-out line in heavy ion collisions

Bazavov A, Ding H-T, Hegde P, Kaczmarek O, Karsch F, Laermann E, Mukherjee S, Ohno H, Petreczky P, Schmidt C, Sharma S, et al. (2016)
Physical Review D 93(1): 014512.

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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.
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Bazavov A, Ding H-T, Hegde P, et al. Curvature of the freeze-out line in heavy ion collisions. Physical Review D. 2016;93(1): 014512.
Bazavov, A., Ding, H. - T., Hegde, P., Kaczmarek, O., Karsch, F., Laermann, E., Mukherjee, S., et al. (2016). Curvature of the freeze-out line in heavy ion collisions. Physical Review D, 93(1): 014512.
Bazavov, A., Ding, H. - T., Hegde, P., Kaczmarek, O., Karsch, F., Laermann, E., Mukherjee, S., Ohno, H., Petreczky, P., Schmidt, C., et al. (2016). Curvature of the freeze-out line in heavy ion collisions. Physical Review D 93:014512.
Bazavov, A., et al., 2016. Curvature of the freeze-out line in heavy ion collisions. Physical Review D, 93(1): 014512.
A. Bazavov, et al., “Curvature of the freeze-out line in heavy ion collisions”, Physical Review D, vol. 93, 2016, : 014512.
Bazavov, A., Ding, H.-T., Hegde, P., Kaczmarek, O., Karsch, F., Laermann, E., Mukherjee, S., Ohno, H., Petreczky, P., Schmidt, C., Sharma, S., Soeldner, W., Wagner, M.: Curvature of the freeze-out line in heavy ion collisions. Physical Review D. 93, : 014512 (2016).
Bazavov, A., Ding, H. -T., Hegde, P., Kaczmarek, Olaf, Karsch, Frithjof, Laermann, Edwin, Mukherjee, Swagato, Ohno, H., Petreczky, P., Schmidt, C., Sharma, S., Soeldner, W., and Wagner, M. “Curvature of the freeze-out line in heavy ion collisions”. Physical Review D 93.1 (2016): 014512.
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