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Title: Decays of non-strange positive parity excited baryons in the 1/Nc expansion

Abstract

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.

Authors:
;
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
838471
Report Number(s):
JLAB-THY-05-318; DOE/ER/40150-3258
TRN: US0501428
DOE Contract Number:  
AC05-84ER40150
Resource Type:
Journal Article
Resource Relation:
Other Information: No journal information given for this preprint; PBD: 1 Apr 2005
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BARYONS; DECAY; ETA MESONS; MESONS; PARITY

Citation Formats

Goity, Jose L, and Scoccola, Norberto N. Decays of non-strange positive parity excited baryons in the 1/Nc expansion. United States: N. p., 2005. Web.
Goity, Jose L, & Scoccola, Norberto N. Decays of non-strange positive parity excited baryons in the 1/Nc expansion. United States.
Goity, Jose L, and Scoccola, Norberto N. 2005. "Decays of non-strange positive parity excited baryons in the 1/Nc expansion". United States. https://www.osti.gov/servlets/purl/838471.
@article{osti_838471,
title = {Decays of non-strange positive parity excited baryons in the 1/Nc expansion},
author = {Goity, Jose L and Scoccola, Norberto N},
abstractNote = {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.},
doi = {},
url = {https://www.osti.gov/biblio/838471}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Apr 01 00:00:00 EST 2005},
month = {Fri Apr 01 00:00:00 EST 2005}
}