Cold quark matter at (NLO)-L-3 : Soft contributions

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http://hdl.handle.net/10138/335923

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Gorda , T , Kurkela , A , Paatelainen , R , Säppi , S & Vuorinen , A 2021 , ' Cold quark matter at (NLO)-L-3 : Soft contributions ' , Physical Review D , vol. 104 , no. 7 , 074015 . https://doi.org/10.1103/PhysRevD.104.074015

Title: Cold quark matter at (NLO)-L-3 : Soft contributions
Author: Gorda, Tyler; Kurkela, Aleksi; Paatelainen, Risto; Säppi, Saga; Vuorinen, Aleksi
Other contributor: University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Department of Physics

Date: 2021-10-15
Language: eng
Number of pages: 43
Belongs to series: Physical Review D
ISSN: 2470-0010
DOI: https://doi.org/10.1103/PhysRevD.104.074015
URI: http://hdl.handle.net/10138/335923
Abstract: High-order perturbative calculations for thermodynamic quantities in QCD are complicated by the physics of dynamical screening that affects the soft, long-wavelength modes of the system. Here, we provide details for the evaluation of this soft contribution to the next-to-next-to-next-to-leading order ((NLO)-L-3) pressure of high-density, zero-temperature quark matter (QM), complementing our accompanying Letter [T. Gorda et al., Phys. Rev. Lett. 127, 162003 (2021)]. Our calculation requires the determination of the pressure of the hard-thermal-loop effective theory to full two-loop order at zero temperature, which we go through in considerable detail. In addition to this, we comprehensively discuss the structure of the weak-coupling expansion of the QM pressure, and lay out a roadmap towards the evaluation of the contributions missing from a full (NLO)-L-3 result for this quantity.
Subject: GAUGE VECTOR-MESONS
GROUND-STATE ENERGY
FINITE-TEMPERATURE
FERMIONS
QCD
DENSITY
114 Physical sciences
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