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arxiv: hep-ph/0202137 · v1 · pith:JLXE2DP3new · submitted 2002-02-14 · ✦ hep-ph · nucl-th

Relativistic dynamics of Qqq systems

E.F. Suisso (Dep. de Fisica , Instituto Tecnologico da Aeronautica Centro Tecnico Aeroespacial , S~ao Jos'e dos Campos , SP , Brazil) , J. P. B. C. de Melo (Instituto de Fisica Teorica , Universidade Estadual Paulista , Sao Paulo
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T. Frederico (Dep. de Fisica Instituto Tecnologico da Aeronautica Centro T\'ecnico Aeroespacial S\~ao Jos\'e dos Campos
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classification ✦ hep-ph nucl-th
keywords lambdadataeffectivelight-frontbaryonboundcomparedcomposite
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The bound state of constituent quarks forming a $Qqq$ composite baryon is investigated in a QCD-inspired effective light-front model. The light-front Faddeev equations are derived and solved numerically. The masses of the spin 1/2 low-lying states of the nucleon, $\Lambda^0$, $\Lambda^+_c$ and $\Lambda^0_b$ are found and compared to the experimental data. The data is qualitatively described with a flavor independent effective interaction.

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