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Chiral structure of the nucleon

Conference · · AIP Conference Proceedings (American Institute of Physics); (United States)
OSTI ID:6933412
 [1]
  1. Institute for Theoretical Physics, University of Bern, Sidlerstr. 5, CH-3102 Bern (Switzerland)
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I consider some applications of baryon chiral perturbation theory in the heavy fermion formulation. The electric and magnetic polarizabilities of the neutron and the proton are in good agreement with the available data. Predictions are made for the nucleon spin-flip Compton amplitude and for the hyperon polarizabilities. Then, I discuss a modification of the pion electro-production theorem of Nambu, Lurie, and Shrauner. This novel pion loop effect closes the discrepancy between the values of the nucleon axial radius determined from (anti)neutrino-proton scattering and pion electroproduction data. Some remarks on the chiral corrections to the [ital S]-wave [pi][ital N] scattering lengths are made.
OSTI ID:
6933412
Report Number(s):
CONF-920837--
Conference Information:
Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Journal Volume: 272:2
Country of Publication:
United States
Language:
English

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Related Subjects

662310 -- Weak & Electromagnetic Interactions of Leptons-- (1992-)
662340* -- Hadron Interactions-- (1992-)
662440 -- Properties of Other Particles Including Hypothetical Particles-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
BARYONS
BASIC INTERACTIONS
BOSONS
CHIRALITY
COMPTON EFFECT
ELASTIC SCATTERING
ELECTROMAGNETIC INTERACTIONS
ELECTROPRODUCTION
ELEMENTARY PARTICLES
FERMIONS
HADRON-HADRON INTERACTIONS
HADRONS
HYPERONS
INTERACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
NEUTRINO-NUCLEON INTERACTIONS
NEUTRINO-PROTON INTERACTIONS
NUCLEONS
PARTIAL WAVES
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PION-NUCLEON INTERACTIONS
PIONS
POLARIZATION
PSEUDOSCALAR MESONS
S WAVES
SCATTERING
SCATTERING AMPLITUDES
SPIN FLIP
STRANGE PARTICLES