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Two-loop HTL-resummed thermodynamics for $$\mathcal{N}$$ = 4 supersymmetric Yang-Mills theory

Journal Article · · Journal of High Energy Physics (Online)
 [1];  [2];  [2];  [3]
  1. Central China Normal Univ., Wuhan (China); Kent State Univ., Kent, OH (United States); OSTI
  2. Kent State Univ., Kent, OH (United States)
  3. Central China Normal Univ., Wuhan (China)
We compute the two-loop hard-thermal-loop (HTL) resummed thermodynamic potential for \( \mathcal{N} \) = 4 supersymmetric Yang-Mills (SYM). Our final result is manifestly gauge-invariant and was renormalized using only simple vacuum energy, gluon mass, scalar mass, and quark mass counter terms. The HTL mass parameters mD, MD, and mq are then determined self-consistently using a variational prescription which results in a set of coupled gap equations. Based on this, we obtain the two-loop HTL-resummed thermodynamic functions of \( \mathcal{N} \) = 4 SYM. We compare our final result with known results obtained in the weak- and strong-coupling limits. We also compare to previously obtained approximately self-consistent HTL resummations and Padé approximants. We find that the two-loop HTL resummed results for the scaled entropy density is a quantitatively reliable approximation to the scaled entropy density for 0 ≤ λ ≲ 2 and is in agreement with previous approximately self-consistent HTL resummation results for λ ≲ 6.
Research Organization:
Kent State Univ., Kent, OH (United States)
Sponsoring Organization:
Chinese Scholarship Council; National Natural Science Foundation of China (NNSFC); USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
SC0013470
OSTI ID:
1715516
Journal Information:
Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 9 Vol. 2020; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English

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