Radially excited baryons in the MIT bag model

Journal Article · Fri Jun 01 04:00:00 EDT 1979 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.19.3330· OSTI ID:6248961

Bowler, K C; Walters, P J

We investigate radially excited baryon states in the cavity approximation to the MIT bag, with particular reference to the phenomenology of NP11 states. We show that, contrary to earlier surmise, exchange gluon contributions to the energy are important. The model predicts NP11 states at 1525 and 1631 MeV in fair agreement with ..pi..N phase-shift analyses, both states having nonvanishing photoproduction matrix elements. We also examine the coupling of breathing modes of the bag and conclude that their effect is small on phenomenological grounds.

• Research Organization: Physics Department, University of Edinburgh, Edinburgh EH9 3JZ, Scotland
• OSTI ID: 6248961
• Journal Information: Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 19:11; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645206* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions
Baryon No. = 1-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BAG MODEL
BARYON RESONANCES
BARYONS
BASIC INTERACTIONS
BOUNDARY CONDITIONS
COMPOSITE MODELS
EIGENFUNCTIONS
EIGENVALUES
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY LEVELS
EXCHANGE INTERACTIONS
EXCITED STATES
EXTENDED PARTICLE MODEL
FERMIONS
FUNCTIONS
GLUON MODEL
HADRONS
HAMILTONIANS
INTERACTIONS
MAGNETIC MOMENTS
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
MATRIX ELEMENTS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PHASE SHIFT
PHOTOPRODUCTION
POSTULATED PARTICLES
QUANTUM OPERATORS
QUARK MODEL
QUARKS
RESONANCE PARTICLES