Saturation of the Drell-Hearn-Gerasimov sum rule reexamined

Journal Article · Sun Mar 01 04:00:00 EST 1992 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.45.1789· OSTI ID:7277706

Workman, R L; Arndt, R A ^[1]

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1. Department of Physics, Virginia Polytechnic Institute and State University, Blacksburg, Virgnia 24061 (United States)

The isospin decomposed Drell-Hearn-Gerasimov sum rule is examined. The single-pion photoproduction contribution is integrated out to 1.7 GeV in the laboratory photon energy. We obtain an improved estimate of the contribution of this process to the isovector and isovector-isoscalar sum rules. The qualitative features of Karliner's results remain valid. The isoscalar sum rule shows no indication of convergence.

• DOE Contract Number: AS05-76ER04928
• OSTI ID: 7277706
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 45:5; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662330* -- Photon & Charged-Lepton Interactions with Hadrons-- (1992)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
BASIC INTERACTIONS
BOSONS
CROSS SECTIONS
DISPERSION RELATIONS
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
EQUATIONS
FERMIONS
GEV RANGE
GEV RANGE 01-10
HADRONS
HELICITY
INELASTIC SCATTERING
INTERACTIONS
ISOSPIN
MAGNETIC MOMENTS
MESONS
NUCLEONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PHOTON-BARYON INTERACTIONS
PHOTON-HADRON INTERACTIONS
PHOTON-NUCLEON INTERACTIONS
PHOTON-PROTON INTERACTIONS
PHOTOPRODUCTION
PIONS
PROTONS
PSEUDOSCALAR MESONS
SCATTERING
SUM RULES