EPJ Web Conf.
Volume 171, 201817th International Conference on Strangeness in Quark Matter (SQM 2017)
|Number of page(s)||4|
|Section||QCD Phase Diagram and Beam Energy Scan (parallel session)|
|Published online||02 February 2018|
Enhancements of high order cumulants across the 1st order phase transition boundary
Frankfurt Institute for Advanced Studies,Ruth Moufang Strasse 1, D-60438, Frankfurt am Main, Germany
2 Department of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
3 Collaborative Innovation Center of Quantum Matter, Beijing 100871, China
4 Center for High Energy Physics, Peking University, Beijing 100871, China
Published online: 2 February 2018
In this proceeding, we investigate the dynamical evolution of the σ field with a trajectory across the 1st order phase transition boundary, using the Langevin equation from the linear sigma model. We find the high order cumulants of the σ field are largely enhanced during the dynamical evolution, compared with the equilibrium values, due to the supercooling effect of the first order phase transition.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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