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2013-03-20 - Article/Dans un journal avec peer-review - Anglais - 19 page(s)

Lacroix Gwendolyn , Semay Claude , Cabrera Daniel, Buisseret Fabien , "Glueballs and the Yang-Mills plasma in a T-matrix approach" in Physical Review. D : Particles and Fields, 87, 054025

  • Edition : American Physical Society, College Park (MD)
  • Codes CREF : Physique des particules élémentaires (DI1221), Physique statistique classique et relativiste (DI1212)
  • Unités de recherche UMONS : Physique nucléaire et subnucléaire (S824)
  • Instituts UMONS : Institut de Recherche sur les Systèmes Complexes (Complexys)
  • Centres UMONS : Algèbre, Géométrie et Interactions fondamentales (AGIF)
Texte intégral :

Abstract(s) :

(Anglais) The strongly coupled phase of Yang-Mills plasma with arbitrary gauge group is studied in a T-matrix approach. The existence of lowest-lying glueballs, interpreted as bound states of two transverse gluons (quasi-particles in a many-body set up), is analyzed in a non-perturbative scat- tering formalism with the input of lattice-QCD static potentials. Glueballs are actually found to be bound up to 1.3 Tc. Starting from the T-matrix, the plasma equation of state is computed by resorting to Dashen, Ma and Bernstein’s formulation of statistical mechanics and favorably compared to quenched lattice data. Special emphasis is put on SU(N) gauge groups, for which analytical results can be obtained in the large-N limit, and predictions for a G2 gauge group are also given within this work

Identifiants :
  • DOI : 10.1103/PhysRevD.87.054025
  • arXiv : 1210.1716

Mots-clés :
  • (Anglais) quark-gluon plasma
  • (Anglais) T-matrix