Cold quark matter at N3LO: Soft contributions
APS, 2021
Online
academicJournal
- 43
Zugriff:
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 (N3LO) 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 N3LO result for this quantity.
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Cold quark matter at N3LO: Soft contributions
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Autor/in / Beteiligte Person: | Gorda, Tyler ; Kurkela, Aleksi ; Paatelainen, Risto ; Säppi, Saga ; Vuorinen, Aleksi |
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Veröffentlichung: | APS, 2021 |
Medientyp: | academicJournal |
Umfang: | 43 |
DOI: | 10.1103/PhysRevD.104.074015 |
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