Analysis of pion-nucleon scattering

Thesis/Dissertation · Fri Jan 01 04:00:00 EST 1988

OSTI ID:5539332

Ford, J M

A phase-shift analysis of elastic pion-nucleon scattering data from threshold to a pion kinetic energy of 1100 MeV was performed. The resulting partial-wave amplitudes were investigated in the complex energy plane, and the resonance states with their associated zeros and poles were determined. Particular emphasis was given on elucidating the nature of the P{sub 11} partial wave. The phase-shift analysis consisted of both energy-independent and energy-dependent analyses. The energy-dependent partial waves were parametrized as a coupled channel K-matrix whose elements are polynomials in energy plus an explicit pole term. A complete description of the investigation and the experimental data used are included as in a description of the theoretical models used for interpretation of the results.

• Research Organization: Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (USA)
• OSTI ID: 5539332
• Country of Publication: United States
• Language: English

Related Subjects

653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AMPLITUDES
COUPLED CHANNEL THEORY
ELASTIC SCATTERING
FUNCTIONS
HADRON-HADRON INTERACTIONS
INTERACTIONS
K MATRIX
MATHEMATICAL MODELS
MATRICES
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
PARTIAL WAVES
PARTICLE INTERACTIONS
PHASE SHIFT
PION-NUCLEON INTERACTIONS
POLYNOMIALS
SCATTERING