Low-energy pion-nucleon scattering

Journal Article · Thu Sep 01 04:00:00 EDT 1977 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.16.1334· OSTI ID:5350066

Banerjee, M K; Cammarata, J B

Using the divergence of the axial-vector current as the pion interpolating field and a soft-pion limit we derive a once-subtracted Low equation for the off-mass-shell ..pi..N amplitude. The sigma commutator term and the once-subtracted z graphs are the main isoscalar and isovector driving terms. The calculated S-wave phase shifts are in good agreement with the experimental data when we use vertical-barg/sub ..pi..//sub( 4M2/) vertical-bar = 11.69 and 25.5 MeV for the sigma commutator term.

• Research Organization: Department of Physics and Astronomy, University of Maryland, College Park, Maryland 20742
• OSTI ID: 5350066
• Journal Information: Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 16:5; 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
ALGEBRAIC CURRENTS
AMPLITUDES
AXIAL-VECTOR CURRENTS
CURRENTS
EQUATIONS
HADRON-HADRON INTERACTIONS
INTERACTIONS
ISOVECTORS
LOW EQUATION
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
PARTIAL WAVES
PARTICLE INTERACTIONS
PHASE SHIFT
PION-NUCLEON INTERACTIONS
S WAVES
SCATTERING AMPLITUDES
T CHANNEL
TENSORS
VECTORS