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2008-11-01 - Article/Dans un journal avec peer-review - Anglais - 6 page(s)

Buisseret Fabien , "Gluelump model with transverse constituent gluons" in European Physical Journal A -- Hadrons & Nuclei, 38, Issue 2, 233-238

  • Edition : Springer Science & Business Media B.V., New York (NY)
  • Codes CREF : Physique théorique et mathématique (DI1210), Mécanique quantique classique et relativiste (DI1211)
  • Unités de recherche UMONS : Physique nucléaire et subnucléaire (S824)
Texte intégral :

Abstract(s) :

(Anglais) We show that C -odd gluelumps can be successfully described as bound states of a single transverse constituent gluon evolving in the flux-tube-like potential generated by a static color-octet source. The use of a helicity degree of freedom rather than a spin one for the constituent gluon forbids the states that are not observed in lattice QCD. Our model leads to a gluelump mass spectrum in remarkable agreement with the available lattice data provided that an additional parity splitting mass term is introduced. We argue that such a term is due to instanton-induced interactions in gluelumps.

Notes :
  • (Anglais) arXiv:0808.2399
Identifiants :
  • DOI : 10.1140/epja/i2008-10663-9