Low-energy Photoproduction and Electroproduction for Physical Pions. 1. Ward Identity and Chiral Breaking Structure - INSPIRE

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Low-energy Photoproduction and Electroproduction for Physical Pions. 1. Ward Identity and Chiral Breaking Structure

J.T. MacMullen
(
- Arizona U.
)
,
M.D. Scadron
(
- ICTP, Trieste
)

Feb, 1979

38 pages

Published in:

Phys.Rev.D 20 (1979) 1069

DOI:

10.1103/PhysRevD.20.1069

Report number:

IC/79/20

View in:

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Abstract: (APS)

The Ward identities of current algebra are combined with gauge-invariance constraints, on-shell partial conservation of the axial-vector current, and the Bjorken limit to obtain the low-energy expressions of the pion photo- and electroproduction invariant amplitudes for physical pions.

PHOTON NUCLEON: INELASTIC SCATTERING
INELASTIC SCATTERING: PHOTON NUCLEON
PI: PHOTOPRODUCTION
PHOTOPRODUCTION: PI
ELECTRON NUCLEON: INELASTIC SCATTERING
INELASTIC SCATTERING: ELECTRON NUCLEON
PI: ELECTROPRODUCTION
ELECTROPRODUCTION: PI
KINEMATICS
CURRENT ALGEBRA

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