Negative Parity Baryon Decays in the 1∕N[sub c] Expansion | Zendy

C. Jayalath | Zendy; José Goity | Zendy; N. N. Scoccola | Zendy; V. Credé | Zendy; P. Eugenio | Zendy; A. Ostrovidov | Zendy

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Negative Parity Baryon Decays in the 1∕N[sub c] Expansion

Author(s) -

C. Jayalath,

José Goity,

N. N. Scoccola,

V. Credé,

P. Eugenio,

A. Ostrovidov

Publication year - 2010

Publication title -

aip conference proceedings

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.177

H-Index - 75

eISSN - 1551-7616

pISSN - 0094-243X

DOI - 10.1063/1.3483391

Subject(s) - physics , particle physics , baryon , excited state , parity (physics) , pseudoscalar , symmetry breaking , quantum chromodynamics , pseudoscalar meson , meson , amplitude , hyperon , nuclear physics , quantum mechanics

The 1/Nc expansion of QCD provides a useful framework for phenomenological studies of both ground state and excited baryons. Here, we focus on its application to the excited baryon strong decays via emission of single pseudoscalar meson. The S‐ and D‐wave decay amplitudes of the negative parity baryons in the [70,1−] of SU (6) are analyzed to subleading order in 1/Nc and to first order in SU(3) symmetry breaking. In particular, the SU(3) symmetry breaking is studied in detail through SU(3) breaking decay operators and state mixing.

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