Shadowing in photon-nucleus scattering and the two-component model. [Cross sections]

Journal Article · Tue Mar 01 04:00:00 EST 1977 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.15.1274· OSTI ID:7312018

Argyres, E N; Lam, C S

A recently proposed two-component model for deep-inelastic electroproduction, in which the generalized-vector-meson-dominance (GVMD) component was augmented by a component due to direct photon interaction with the valence quarks, is applied to the study of nuclear shadowing. We calculate the effective number of nucleons (A/sub eff/) as a function of the photon energy for various values of -q/sup 2/ and several nuclei in a GVMD model. The resulting photon-nucleus cross section as a function of energy is consistent with the data and the rho-nucleon cross section is in agreement with expectations. The results for A/sub eff/ are in satisfactory agreement with experiment and represent an improvement of the pure GVMD result.

• Research Organization: Department of Physics, McGill University, Montreal, Canada
• OSTI ID: 7312018
• Journal Information: Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 15:5; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BASIC INTERACTIONS
BOSONS
COMPOSITE MODELS
CROSS SECTIONS
ELECTROMAGNETIC INTERACTIONS
ELECTROPRODUCTION
ELEMENTARY PARTICLES
ENERGY DEPENDENCE
HADRONS
INELASTIC SCATTERING
INTERACTIONS
MATHEMATICAL MODELS
MESON RESONANCES
MESONS
NUCLEAR POTENTIAL
NUCLEAR REACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PHOTONUCLEAR REACTIONS
QUARK MODEL
RESONANCE PARTICLES
SCATTERING
SHADOW EFFECT
VECTOR DOMINANCE MODEL
VECTOR MESONS