Negative parity nonstrange baryons in large $N_c$ QCD: quark excitation versus meson-nucleon scattering

Details Negative parity nonstrange baryons in large $N_c$ QCD: quark excitation versus meson-nucleon scattering Negative parity nonstrange baryons in large $N_c$ QCD: quark excitation versus meson-nucleon scattering

2011-12-21

arxiv.org/abs/1112.5061v1

Proceedings of the Bled Workshop on ''Understanding Hadronic Spectra", Bled, Slovenia, July 3-10, 2011, Bled Workshops in Phys

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, based on a talk given by Fl. Stancu at the Bled Workshop 2011 on "Understanding Hadronic Spectra"; proceedings edited

Scientific paper

We show that the two complementary pictures of large $N_c$ baryons - the
single-quark orbital excitation about a symmetric core and the meson-nucleon
resonance -- are compatible for $\ell$ = 3 SU(4) baryons. The proof is based on
a simple Hamiltonian including operators up to order $\mathcal{O}(N^0_c)$ used
previously in the literature for $\ell$ = 1.

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