S-wave and P-wave non-strange baryons in the potential model of QCD

Details S-wave and P-wave non-strange baryons in the potential model of QCD S-wave and P-wave non-strange baryons in the potential model of QCD

2005-11-16

arxiv.org/abs/hep-ph/0511195v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

26 pages, 1 figure

Scientific paper

In this paper, we study the nucleon energy spectrum in the ground-state (with orbital momentum L=0) and the first excited state (L=1). The aim of this study is to find the mass and mixing angles of excited nucleons using a potential model describing QCD. This potential is of the "Coulombian + linear" type and we take into account some relativistic effects, namely we use essentially a relativistic kinematic necessary for studying light flavors. By this model, we found the proton and $\Delta (1232)$ masses respectively equal to ($968MeV$, $1168MeV$), and the masses of the excited states are between $1564MeV$ and $1607MeV$.

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