Decays of $\ell=1$ Baryons --- Quark Model versus Large-$N_c$

Details Decays of $\ell=1$ Baryons --- Quark Model versus Large-$N_c$ Decays of $\ell=1$ Baryons --- Quark Model versus Large-$N_c$

1994-06-03

arxiv.org/abs/hep-ph/9406227v2

Phys.Rev.D50:5793-5807,1994

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX 49pp. (38 pp. landscape), PicTex, PrePicTex, PostPicTex required for 3 figures, Harvard Preprint HUTP-94/A008. (Two addi

Scientific paper

10.1103/PhysRevD.50.5793

We study nonleptonic decays of the orbitally excited, \su6 \rep{70}-plet baryons in order to test the hypothesis that the successes of the nonrelativistic quark model have a natural explanation in the large-$N_c$ limit of QCD. By working in a Hartree approximation, we isolate a specific set of operators that contribute to the observed s- and d-wave decays in leading order in $1/N_c$. We fit our results to the current experimental decay data, and make predictions for a number of allowed but unobserved modes. Our tentative conclusion is that there is more to the nonrelativistic quark model of baryons than large-$N_c$.

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