Large-x dependence of. nu. W/sub 2/ in the generalized vector-dominance model. [Potential, relativistic eikonal model]

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

DOI:https://doi.org/10.1103/PhysRevD.15.139· OSTI ID:7130437

Argyres, E N; Lam, C S

It is well known that the usual generalized vector-meson-dominance (GVMD) model gives too large a contribution to ..nu..W/sub 2/ for large x. Various heuristic modifications, for example making use of the t/sub min/ effect, have been proposed in order to achieve a reduction of this contribution. In this paper we examine within the GVMD context whether such reductions can rigorously be achieved. This is done utilizing a potential as well as a relativistic eikonal model. We find that whereas a reduction equivalent to that of t/sub min/ can be arranged in vector-meson photoproduction, the same is not true for virtual-photon Compton scattering in such diagonal models. The reason for this difference is discussed in detail. Finally we show that the desired reduction can be obtained if nondiagonal vector-meson scattering terms are properly taken into account. (AIP)

• Research Organization: Department of Physics, McGill University, Montreal, Quebec, Canada
• OSTI ID: 7130437
• Journal Information: Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 15:1; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645202* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BASIC INTERACTIONS
BOSONS
DEEP INELASTIC SCATTERING
EIKONAL APPROXIMATION
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
FUNCTIONS
HADRONS
INELASTIC SCATTERING
INTERACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
MATHEMATICAL MODELS
MESON RESONANCES
MESONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PHOTOPRODUCTION
RESONANCE PARTICLES
SCATTERING
STRUCTURE FUNCTIONS
VECTOR DOMINANCE MODEL
VECTOR MESONS