Sensitivity of the Polyakov loop and related observables to chiral symmetry restoration

Clarke D, Kaczmarek O, Karsch F, Lahiri A, Sarkar M (2020)
arXiv:2008.11678.

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Abstract / Bemerkung
While the Polyakov loop is an order parameter of the deconfinement transition in the heavy quark mass regime of QCD, its sensitivity to the deconfinement of light, dynamical quarks in QCD is not apparent. On the other hand, the quark mass dependence of the Polyakov loop is sensitive to the appearance of a chiral phase transition. We show here, for the first time, that the Polyakov loop expectation value, and the heavy quark free energy extracted from it, behave like energy-like observables in the vicinity of the chiral phase transition temperature $T_c$. Consistent with scaling behavior of energy-like observables in the 3-$d$, O($N$) universality classes, the quark mass derivatives diverge in the chiral limit at $T_c$ while the temperature derivatives stay finite. The latter will develop a characteristic spike at $T_c$. This, however, may be resolved only in calculations with quark masses being two orders of magnitude smaller than those currently accessible in lattice QCD calculations.
Erscheinungsjahr
2020
Zeitschriftentitel
arXiv:2008.11678
Page URI
https://pub.uni-bielefeld.de/record/2949881

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Clarke D, Kaczmarek O, Karsch F, Lahiri A, Sarkar M. Sensitivity of the Polyakov loop and related observables to chiral symmetry restoration. arXiv:2008.11678. 2020.
Clarke, D., Kaczmarek, O., Karsch, F., Lahiri, A., & Sarkar, M. (2020). Sensitivity of the Polyakov loop and related observables to chiral symmetry restoration. arXiv:2008.11678
Clarke, D., Kaczmarek, O., Karsch, F., Lahiri, A., and Sarkar, M. (2020). Sensitivity of the Polyakov loop and related observables to chiral symmetry restoration. arXiv:2008.11678.
Clarke, D., et al., 2020. Sensitivity of the Polyakov loop and related observables to chiral symmetry restoration. arXiv:2008.11678.
D. Clarke, et al., “Sensitivity of the Polyakov loop and related observables to chiral symmetry restoration”, arXiv:2008.11678, 2020.
Clarke, D., Kaczmarek, O., Karsch, F., Lahiri, A., Sarkar, M.: Sensitivity of the Polyakov loop and related observables to chiral symmetry restoration. arXiv:2008.11678. (2020).
Clarke, David, Kaczmarek, Olaf, Karsch, Frithjof, Lahiri, Anirban, and Sarkar, Mugdha. “Sensitivity of the Polyakov loop and related observables to chiral symmetry restoration”. arXiv:2008.11678 (2020).
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Data Publication: Sensitivity of the Polyakov loop and related observables to chiral symmetry restoration
Clarke D, Kaczmarek O, Karsch F, Lahiri A, Sarkar M (2021)
Bielefeld University.

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arXiv: 2008.11678

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