Decays of non-strange positive parity excited baryons in the 1/Nc expansion
Journal Article
·
OSTI ID:838471
The decays of non-strange positive parity baryons via emission of a pseudo-scalar meson are studied in the framework of the 1/Nc expansion to order 1/Nc. 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/Nc{sup 2} with respect to the pionic ones.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 838471
- Report Number(s):
- JLAB-THY-05-318; DOE/ER/40150-3258; TRN: US0501428
- Resource Relation:
- Other Information: No journal information given for this preprint; PBD: 1 Apr 2005
- Country of Publication:
- United States
- Language:
- English
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