Splitting of the pi - rho spectrum in a renormalized light-cone QCD-inspired model

Details Splitting of the pi - rho spectrum in a renormalized light-cone QCD-inspired model Splitting of the pi - rho spectrum in a renormalized light-cone QCD-inspired model

2002-07-17

arxiv.org/abs/hep-ph/0207207v2

Phys.Rev. D66 (2002) 054007

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 2 figures, revtex, accepted by Phys. Rev. D; Corrected typos

Scientific paper

10.1103/PhysRevD.66.054007

We show that the splitting between the light pseudo-scalar and vector meson states is due to the strong short-range attraction in the ^1S_0 sector which makes the pion and the kaon light particles. We use a light-cone QCD-inspired model of the mass squared operator with harmonic confinement and a Dirac-delta interaction. We apply a renormalization method to define the model, in which the pseudo-scalar ground state mass fixes the renormalized strength of the Dirac-delta interaction.

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