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2006-09-01 - Article/Dans un journal avec peer-review - Anglais - 7 page(s)

Mathieu Vincent , Semay Claude , Silvestre-Brac B., "Semirelativistic potential model for low-lying three-gluon glueballs" in Physical Review. D : Particles and Fields, 74, Issue 5, 054002 (7 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)
  • Instituts UMONS : Institut de Recherche sur les Systèmes Complexes (Complexys)
Texte intégral :

Abstract(s) :

(Anglais) The three-gluon glueball states are studied with the generalization of a semirelativistic potential model giving good results for two-gluon glueballs. The Hamiltonian depends only on 3 parameters fixed on two-gluon glueball spectra: the strong coupling constant, the string tension, and a gluon size which removes singularities in the potential. The Casimir scaling determines the structure of the confinement. Low-lying JPC states are computed and compared with recent lattice calculations. A good agreement is found for 1-- and 3-- states, but our model predicts a 2-- state much higher in energy than the lattice result. The 0-+ mass is also computed.

Identifiants :
  • arXiv : 0605205 [hep-ph]
  • DOI : 10.1103/PhysRevD.74.054002