SENSITIVITY OF LOW-ENERGY PION-NUCLEON SCATTERING TO A PION-PION RESONANCE

Journal Article · Mon Aug 15 04:00:00 EDT 1960 · Phys. Rev. Letters

DOI:https://doi.org/10.1103/PhysRevLett.5.159· OSTI ID:4151402

Frautschi, S C

The possibility of explaining nucleon electromagnetic structure quantitatively by introducing a pi - pi resonance in the T = 1. J = 1 state was recognized by Frazer and Fulco. It is pointed out that in pi -N scattering the J = 1/2, P states are extremely sensitive to the pi - pi resonance. The pi - pi resonance parameters that fit the nucleon electromagnetic structure make it difficult to obtain agreement with experiment in several pi -N scattering states. This conclusion is especially strong in the P/sub 1/2/,1/2/, state where the pi - pi contribution represents an attractive, long-range interaction that should lead to a large positive phase shift, regardless of what form the unknown short- range interaction may take. (B.O.G.)

• Research Organization: Univ. of California, Berkeley
• NSA Number: NSA-14-024805
• OSTI ID: 4151402
• Journal Information: Phys. Rev. Letters, Journal Name: Phys. Rev. Letters Vol. Vol: 5
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ELECTROMAGNETISM
INTERACTIONS
NUCLEAR MODELS
NUCLEAR STRUCTURE
NUCLEONS
PARTICLE MODELS
PHYSICS
PIONS
RESONANCE
SCATTERING
SENSITIVITY
SPECTRAL SHIFT