Partial Decay Widths of Negative Parity Baryons in the 1/N{sub c} Expansion

Conference · Mon Apr 01 00:00:00 EDT 2013 · AIP Conf. Proceedings

DOI:https://doi.org/10.1063/1.4795965· OSTI ID:1074396

Gonzalez de Urreta, Emiliano ^[1]; Scoccola, Norberto ^[1]; Jayalath, Chandala ^[2]; Goity, Jose ^[2]

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1. CNEA, Buenos Aires
2. JLAB, Hampton U.

The partial decay widths of lowest lying negative parity baryons belonging to the 70-plet of SU(6) are analyzed in the framework of the 1/N{sub c} expansion. The channels considered are those with single pseudoscalar meson emission. The analysis is carried out to sub-leading order in 1/N{sub c} and to first order in SU(3) symmetry breaking. Conclusions about the magnitude of SU(3) breaking effects along with predictions for some unknown or poorly determined partial decay widths of known resonances are given.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1074396
• Report Number(s): JLAB-THY-12-1673; DOE/OR/23177-2528; NSF Grant PHY-0555559; NSF Grant PHY-0855789; CONICET (Argentina) grant PIP 02368; ANPCyT (Argentina) grant PICT 07-03-00818
• Journal Information: AIP Conf. Proceedings, Vol. 1520; Conference: International Workshop XII on Hadron Physics, 22-27 Apr, 2012. Bento Gonçalves, Rio Grande do Sul, Brazil
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
baryon decay
baryon parity
baryon resonances
quantum chromodynamics
spontaneous symmetry breaking
SU(3) theory
SU(6) theory