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2002-10-17 - Article/Dans un journal avec peer-review - Anglais - 11 page(s)

Brau Fabian, Semay Claude , "A mass formula for light mesons from a potential model" in Journal of Physics : G Nuclear & Particle Physics, 28, 2771–2781

  • Edition : Institute of Physics, Bristol (United Kingdom)
  • 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 quark dynamics inside light mesons, except pseudoscalar ones, can be quite well described by a spinless Salpeter equation supplemented by a Cornell interaction (possibly partly vector, partly scalar). A mass formula for these mesons can then be obtained by computing analytical approximations of the eigenvalues of the equation. We show that such a formula can be derived by combining the results of two methods: the dominantly orbital state description and the Bohr-Sommerfeld quantization approach. The predictions of the mass formula are compared with accurate solutions of the spinless Salpeter equation computed with a Lagrange-mesh calculation method.

Identifiants :
  • arXiv : 0412177 [hep-ph]