Next-to-next-to leading-order hard-thermal-loop perturbation-theory predictions for the curvature of the QCD phase transition line

We present predictions for the second- and fourth-order curvature coefficients of the QCD phase transition line using the NNLO HTLpt-resummed thermodynamic potential. We present three cases corresponding to (i) μs = μl = μB/3, (ii) μs = 0, μl = μB/3, and (iii) S = 0, Q/B = 0.4, μl = μB/3. In all thr...

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Bibliographic Details
Published in:Physical review. C 2021-03, Vol.103 (3), Article L031901
Main Authors: Haque, Najmul, Strickland, Michael
Format: Article
Language:English
Subjects:
Approximation methods for many-body systems
Many-body techniques
NUCLEAR PHYSICS AND RADIATION PHYSICS
Particle correlations and fluctuations
Perturbation theory
Phase diagrams
Phase transitions
Physics
Quark-gluon plasma
Relativistic heavy-ion collisions
Strong interaction
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Summary:We present predictions for the second- and fourth-order curvature coefficients of the QCD phase transition line using the NNLO HTLpt-resummed thermodynamic potential. We present three cases corresponding to (i) μs = μl = μB/3, (ii) μs = 0, μl = μB/3, and (iii) S = 0, Q/B = 0.4, μl = μB/3. In all three cases, we find excellent agreement with continuum extrapolated lattice QCD results for κ2, given current statistical uncertainties. We also make HTLpt predictions for κ4 in all three cases, finding again excellent agreement with lattice extractions of this coefficient where available.
ISSN:2469-9985
2469-9993
DOI:10.1103/PhysRevC.103.L031901