Pion-nucleon scattering in the cloudy bag model

Journal Article · Tue Apr 01 04:00:00 EST 1986 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.33.1859· OSTI ID:5931267

Veit, E A; Jennings, B K; Thomas, A W

We investigate s- and p-wave pion-nucleon scattering in the volume-coupling version of the cloudy bag model. The earlier conclusions about the nature of the ..delta..(1232), based on surface coupling, are not altered. This model also provides a good description of the ''small'' p-wave phase shifts, and the s-wave scattering lengths. However, there are indications from the s waves at energies above 100 MeV, and from the P/sub 11/ channel, that some physics is still missing.

• Research Organization: Departamento de Fisica, Universidade Federal do Rio Grande do Sul, Rua Luiz Englert, S/N 90000, Porto Alegre, Brasil
• OSTI ID: 5931267
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 33:7; 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
COMPOSITE MODELS
DELTA-1236 RESONANCES
ELEMENTARY PARTICLES
EXTENDED PARTICLE MODEL
FUNCTIONS
HADRON-HADRON INTERACTIONS
INTERACTIONS
LAGRANGIAN FUNCTION
LIE GROUPS
MATHEMATICAL MODELS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
P WAVES
PARTIAL WAVES
PARTICLE INTERACTIONS
PARTICLE MODELS
PION-NUCLEON INTERACTIONS
POSTULATED PARTICLES
QUARK MODEL
QUARKS
S WAVES
SU GROUPS
SU-2 GROUPS
SYMMETRY GROUPS