Masses and widths of {ital N} and {Delta} resonances

Journal Article · Mon May 01 00:00:00 EDT 1995 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.51.4837· OSTI ID:44751

Manley, D M ^[1]

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1. Department of Physics and Center for Nuclear Research, Kent State University, Kent, Ohio 44242 (United States)

A simple approximation is derived to relate the complex pole in a resonant partial-wave {ital T}-matrix amplitude to the conventional Breit-Wigner parameters that describe the scattering resonance. The approximation is tested by using well-established resonance parameters for the {Delta}(1232)3/2{sup +}. This new result facilitates a comparison of both Breit-Wigner parameters and pole positions for 17 resonances described by four major analyses of {pi}{ital N} scattering.

• OSTI ID: 44751
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 9 Vol. 51; ISSN 0556-2821; ISSN PRVDAQ
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
AMPLITUDES
BREIT-WIGNER FORMULA
DELTA BARYONS
MASS
NUCLEONS
PARTIAL WAVES
PION-NUCLEON INTERACTIONS
RESONANCE
SCATTERING
WIDTH