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# Splitting of the π ? ρ spectrum in a renormalized light-cone QCD-inspired model

## Abstracts

 We show that the splitting between the light pseudo-scalar and vector meson states is due to the strong short-range attraction in the 1S0 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.
Recommended references： T. Frederico,Hans-Christian Pauli,Shan-Gui Zhou.(2017).Splitting of the π ? ρ spectrum in a renormalized light-cone QCD-inspired model.[ChinaXiv:201708.00279] (Click&Copy)
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