Anomaly constraints on deconfinement and chiral phase transition

Hiroyuki Shimizu, Kazuya Yonekura

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

We study the constraints on thermal phase transitions of SU(Nc) gauge theories by using the 't Hooft anomaly involving the center symmetry and chiral symmetry. We consider two cases of massless fermions: (i) adjoint fermions and (ii) Nf flavors of fundamental fermions with a nontrivial greatest common divisor, gcd(Nc,Nf)≠1. For the first case (i), we show that the chiral symmetry restoration in terms of the standard Landau-Ginzburg effective action is impossible at a temperature lower than that of deconfinement. For the second case (ii), we introduce a modified version of the center symmetry, which we call center-flavor symmetry, and draw similar conclusions under a certain definition of confinement. Moreover, at zero temperature, our results give a partial explanation of the appearance of dual magnetic gauge groups in (supersymmetric) QCD when gcd(Nc,Nf)≠1.

Original languageEnglish
Article number105011
JournalPhysical Review D
Volume97
Issue number10
DOIs
Publication statusPublished - May 15 2018
Externally publishedYes

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anomalies
symmetry
fermions
restoration
gauge theory
quantum chromodynamics
temperature

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Anomaly constraints on deconfinement and chiral phase transition. / Shimizu, Hiroyuki; Yonekura, Kazuya.

In: Physical Review D, Vol. 97, No. 10, 105011, 15.05.2018.

Research output: Contribution to journalArticle

Shimizu, Hiroyuki ; Yonekura, Kazuya. / Anomaly constraints on deconfinement and chiral phase transition. In: Physical Review D. 2018 ; Vol. 97, No. 10.
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