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Rohrhofer, C. ; Aoki, Y. ; Cossu, G. ; Fukaya, H. ; Glozman, L. Ya. ; Hashimoto, S. ; Lang, C. B. ; Prelovsek, S.

Approximate degeneracy of J=1 spatial correlators in high temperature QCD

Article

Rohrhofer, C., Aoki, Y., Cossu, G., Fukaya, H., Glozman, L. Ya., Hashimoto, S., Lang, C. B. and Prelovsek, S. (2017) Approximate degeneracy of J=1 spatial correlators in high temperature QCD. Physical Review D 96 (9).

DOI to cite this document: 10.5283/epub.39588


Abstract

We study spatial isovector meson correlators in N-f = 2 QCD with dynamical domain-wall fermions on 32(3) x 8 lattices at temperatures T = 220-380 MeV. We measure the correlators of spin-one (J = 1) operators including vector, axial-vector, tensor and axial-tensor. Restoration of chiral U(1)(A) and SU(2)(L) x SU(2)(R) symmetries of QCD implies degeneracies in vector-axial-vector (SU(2)(L) x ...

We study spatial isovector meson correlators in N-f = 2 QCD with dynamical domain-wall fermions on 32(3) x 8 lattices at temperatures T = 220-380 MeV. We measure the correlators of spin-one (J = 1) operators including vector, axial-vector, tensor and axial-tensor. Restoration of chiral U(1)(A) and SU(2)(L) x SU(2)(R) symmetries of QCD implies degeneracies in vector-axial-vector (SU(2)(L) x SU(2)(R)) and tensor-axial-tensor (U(1)(A)) pairs, which are indeed observed at temperatures above T-c. Moreover, we observe an approximate degeneracy of all J = 1 correlators with increasing temperature. This approximate degeneracy suggests emergent SU(2)(CS) and SU(4) symmetries at high temperatures, that mix left- and right-handed quarks.



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Details

Item typeArticle
Journal or Publication TitlePhysical Review D
PublisherAMER PHYSICAL SOC
Open Access TypeDue to SHERPA/RoMEO
Place of PublicationCOLLEGE PK
Volume96
Number of Issue or Book Chapter9
Date2017
Date of publication20 Mar 2019 13:10
InstitutionsPhysics > Institute of Theroretical Physics
Identification Number
ValueType
10.1103/PhysRevD.96.094501DOI
KeywordsSCREENING MASSES; FLAVOR QCD;
Dewey Decimal Classification500 Science > 530 Physics
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgYes
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-395886
Item ID39588

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