Chiral crossover in QCD at zero and non-zero chemical potentials HotQCD Collaboration

Bazavov A, Ding H-T, Hegde R, Kaczmarek O, Karsch F, Karthik N, Laermann E, Lahiri A, Larsen R, Li S-T, Mukherjee S, et al. (2019)
Physics Letters B 795: 15-21.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
We present results for pseudo-critical temperatures of QCD chiral crossovers at zero and non-zero values of baryon (B), strangeness (S), electric charge (Q), and isospin (I) chemical potentials mu(X=B,Q,S,I). The results were obtained using lattice QCD calculations carried out with two degenerate up and down dynamical quarks and a dynamical strange quark, with quark masses corresponding to physical values of pion and kaon masses in the continuum limit. By parameterizing pseudo-critical temperatures as T-c(mu(x)) = T-c(0)[1-kappa(X)(2)(mu(X)/T-c(0))(2) - kappa(X)(4)(mu(X)/T-c(0))(4)], we determined kappa(X)(2) and kappa(X)(4) from Taylor expansions of chiral observables in mu(X). We obtained a precise result for T-c(0) = (156.5 +/- 1.5) MeV. For analogous thermal conditions at the chemical freeze-out of relativistic heavy-ion collisions, i.e., mu(S)(T, mu(B)) and mu(Q)(T, mu(B)) fixed from strangeness-neutrality and isospin-imbalance, we found kappa(B)(2) = 0.012(4) and kappa(B)(4) = 0.000(4). For mu(B) less than or similar to 300 MeV, the chemical freeze-out takes place in the vicinity of the QCD phase 4 boundary, which coincides with the lines of constant energy density of 0.42(6) GeV/fm(3) and constant entropy density of 3.7(5) fm(-3). (C) 2019 The Author(s). Published by Elsevier B.V.
Erscheinungsjahr
2019
Zeitschriftentitel
Physics Letters B
Band
795
Seite(n)
15-21
ISSN
0370-2693
eISSN
1873-2445
Page URI
https://pub.uni-bielefeld.de/record/2936920

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Bazavov A, Ding H-T, Hegde R, et al. Chiral crossover in QCD at zero and non-zero chemical potentials HotQCD Collaboration. Physics Letters B. 2019;795:15-21.
Bazavov, A., Ding, H. - T., Hegde, R., Kaczmarek, O., Karsch, F., Karthik, N., Laermann, E., et al. (2019). Chiral crossover in QCD at zero and non-zero chemical potentials HotQCD Collaboration. Physics Letters B, 795, 15-21. doi:10.1016/j.physletb.2019.05.013
Bazavov, A., Ding, H. - T., Hegde, R., Kaczmarek, O., Karsch, F., Karthik, N., Laermann, E., Lahiri, A., Larsen, R., Li, S. - T., et al. (2019). Chiral crossover in QCD at zero and non-zero chemical potentials HotQCD Collaboration. Physics Letters B 795, 15-21.
Bazavov, A., et al., 2019. Chiral crossover in QCD at zero and non-zero chemical potentials HotQCD Collaboration. Physics Letters B, 795, p 15-21.
A. Bazavov, et al., “Chiral crossover in QCD at zero and non-zero chemical potentials HotQCD Collaboration”, Physics Letters B, vol. 795, 2019, pp. 15-21.
Bazavov, A., Ding, H.-T., Hegde, R., Kaczmarek, O., Karsch, F., Karthik, N., Laermann, E., Lahiri, A., Larsen, R., Li, S.-T., Mukherjee, S., Ohno, H., Petreczky, R., Sandmeyer, H., Schmidt, C., Sharma, S., Steinbrecher, R.: Chiral crossover in QCD at zero and non-zero chemical potentials HotQCD Collaboration. Physics Letters B. 795, 15-21 (2019).
Bazavov, A., Ding, H-T, Hegde, R., Kaczmarek, Olaf, Karsch, Frithjof, Karthik, N., Laermann, Edwin, Lahiri, Anirban, Larsen, R., Li, S-T, Mukherjee, Swagato, Ohno, H., Petreczky, R., Sandmeyer, Hauke, Schmidt, Christian, Sharma, S., and Steinbrecher, R. “Chiral crossover in QCD at zero and non-zero chemical potentials HotQCD Collaboration”. Physics Letters B 795 (2019): 15-21.

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