Negative parity baryon decays in the 1/N{sub c} expansion

Journal Article · Sat Oct 01 00:00:00 EDT 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.84.074012· OSTI ID:21607770

Jayalath, C ^[1]; Goity, J L ^[1]; Gonzalez de Urreta, E ^[2]; Scoccola, N N ^[2]

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1. Department of Physics, Hampton University, Hampton, Virginia 23668 (United States)
2. Department of Theoretical Physics, Comision Nacional de Energia Atomica, 1429 Buenos Aires (Argentina)

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 obtained.

• OSTI ID: 21607770
• Journal Information: Physical Review. D, Particles Fields, Vol. 84, Issue 7; Other Information: DOI: 10.1103/PhysRevD.84.074012; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
EMISSION
EXPANSION
PARITY
PARTICLE DECAY
PSEUDOSCALAR MESONS
RESONANCE
SU-3 GROUPS
SU-6 GROUPS
SYMMETRY BREAKING
BOSONS
DECAY
ELEMENTARY PARTICLES
FERMIONS
HADRONS
LIE GROUPS
MESONS
PARTICLE PROPERTIES
SU GROUPS
SYMMETRY GROUPS