Conserved Charge Fluctuations from Lattice QCD and the Beam Energy Scan

Karsch, F. and Bazavov, A. and Ding, H. -T. and Hegde, P. and Kaczmarek, O. and Laermann, E. and Mukherjee, Swagato and Ohno, H. and Petreczky, P. and Schmidt, C. and Sharma, S. and Soeldner, W. and Steinbrecher, P. and Wagner, M. (2016) Conserved Charge Fluctuations from Lattice QCD and the Beam Energy Scan. NUCLEAR PHYSICS A, 956. pp. 352-355. ISSN 0375-9474, 1873-1554

Full text not available from this repository.

Abstract

We discuss the next-to-leading order Taylor expansion of ratios of cumulants of net-baryon number fluctuations. We focus on the relation between the skewness ratio, S-B sigma(B) = chi(B)(3)/chi(B)(1) and the kurtosis ratio, KBol = chi(B)(4)/chi(B)(4). We show that differences in these two cumulant ratios are small for small values of the baryon chemical potential. The next-to-leading order correction to kappa(B)sigma(2)(B) however is approximately three times larger than that for S-B sigma(B). The former thus drops much more rapidly with increasing beam energy, root S-NN. We argue that these generic patterns are consistent with current data on cumulants of net-proton number fluctuations measured by the STAR Collaboration at root(SNN) >= 19.6 GeV.

Item Type: Article
Uncontrolled Keywords: ; Quark-Gluon Plasma; Lattice QCD; Heavy Ion Collisions
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Theroretical Physics
Depositing User: Dr. Gernot Deinzer
Date Deposited: 13 Dec 2019 14:35
Last Modified: 13 Dec 2019 14:35
URI: https://pred.uni-regensburg.de/id/eprint/3921

Actions (login required)

View Item View Item