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arXiv · hep-ph/9406227

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

Christopher D. Carone·Howard Georgi·Lev Kaplan·David Morin
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Abstract

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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Christopher D. Carone, Howard Georgi, Lev Kaplan, David Morin. 1994-06-15. Decays of $\ell=1$ Baryons --- Quark Model versus Large-$N_c$. https://doi.org/10.1103/physrevd.50.5793

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