Decays of nonstrange positive parity excited baryons in the 1/N{sub c} expansion
Journal Article
·
· Physical Review. D, Particles Fields
- Department of Physics, Hampton University, Hampton, Virginia 23668 (United States)
- Physics Department, Comision Nacional de Energia Atomica (1429) Buenos Aires (Argentina)
The decays of nonstrange positive parity excited baryons via emission of a pseudoscalar meson are studied in the framework of the 1/N{sub c} expansion to order 1/N{sub c}. In particular, the pionic decays of the l=0 Roper baryons and of the l=2 baryons in the mass interval 1680-1950 MeV are analyzed using the available partial decay widths. Decay widths by emission of an {eta} meson are shown to be suppressed by a factor 1/N{sub c}{sup 2} with respect to the pionic ones.
- OSTI ID:
- 20711232
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 72, Issue 3; Other Information: DOI: 10.1103/PhysRevD.72.034024; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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