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2004-07-30 - Article/Dans un journal avec peer-review - Anglais - 8 page(s)

Brau Fabian, Semay Claude , "Semirelativistic potential model for glueball states" in Physical Review. D : Particles and Fields, 70, 014017 (8 p.)

  • Edition : American Physical Society, College Park (MD)
  • Codes CREF : Physique des particules élémentaires (DI1221), Physique théorique et mathématique (DI1210)
  • Unités de recherche UMONS : Physique nucléaire et subnucléaire (S824), Laboratoire Interfaces et Fluides complexes (S885)
  • Instituts UMONS : Institut de Recherche sur les Systèmes Complexes (Complexys)
Texte intégral :

Abstract(s) :

(Anglais) The masses of two-gluon glueballs are studied with a semirelativistic potential model whose interaction is a scalar linear confinement supplemented by a one-gluon exchange mechanism. The gluon is massless but the leading corrections of the dominant part of the Hamiltonian are expressed in terms of a state-dependent constituent gluon mass. The Hamiltonian depends only on three parameters: the strong coupling constant, the string tension, and a gluon size, which removes all singularities in the leading corrections of the potential. Accurate numerical calculations are performed with a Lagrange mesh method. The masses predicted are in rather good agreement with lattice results and with some experimental glueball candidates.

Identifiants :
  • arXiv : 0412173 [hep-ph]
  • DOI : 10.1103/PhysRevD.70.014017