The Pressure of hot QCD up to g6 ln(1/g)
By K. Kajantie, M. Laine, K. Rummukainen, Y. Schröder. 2002
355 citations recorded by the source corpus.
The free energy density, or pressure, of QCD has at high temperatures an expansion in the coupling constant g, known so far up to order g^5. We compute here the last contribution which can be determined perturbatively, g^6 ln(1/g), by summing together results for the 4-loop vacuum energy densities of two different three-dimensional effective field theories. We also demonstrate that the inclusion of the new perturbative g^6 ln(1/g) terms, once they are summed together with the so far unknown perturbative and non-perturbative g^6 terms, could potentially extend the applicability of the coupling constant series down to surprisingly low temperatures.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/317ef0bae7dd481358a141a4144fa1a6f6b4c9ce
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In Nuclear and High Energy Physics
Citations in the corpus
- Heavy Quark Thermalization in Classical Lattice Gauge Theory (2009, background): “equal-time) quantities such as the pressure [5], convergence remains debatable [6]; in the dynamical case at most the first non-trivial order has been reached so far [7–10], and the results certainly display very large O(g) corrections.”
- Strongly correlated quantum fluids: ultracold quantum gases, quantum chromodynamic plasmas and holographic duality (2012, background): “The perturbative expansion of the entropy density is [227, 228]”
- Formation of dense partonic matter in relativistic nucleus–nucleus collisions at RHIC: Experimental evaluation by the PHENIX Collaboration (2004, methodology): “Perturbative QCD results for the pressure as a function of temperature at various orders normalized to the Stefan-Boltzmann value pSB [29].”
- The effects of QCD equation of state on the relic density of WIMP dark matter (2015, background): “2 GeV, these were matched to perturbative calculations [37].”