Pion electroproduction from the deuteron in the delta (1230) resonance region

Thesis/Dissertation · Thu Jan 01 04:00:00 EST 1981

OSTI ID:5165281

Mehrotra, S

Using a model based on the pseudo-vector Born terms, the ..delta.. (1230) in the s and u channels, and the ..omega.. meson, we have obtained pion electroproduction amplitudes from the nucleon in the nonrelativistic limit. This model is an extension of the Blomquist-Laget pion photoproduction model and is in good agreement with experimental data for electron four momentum transfer squared up to approximately 0.3 GeV/sup 2/. The pion electroproduction amplitude we obtain may be used in the investigation of pion electroproduction from nuclei. As an example we have calculated the exclusive pion electroproduction cross sections from the deuteron in the kinematic domain where the pion-nucleon final state interaction is most important. We find that the transverse cross sections dominate and the contributions due to longitudinal terms are small. We have also studied the dependence of the transverse cross section on the four momentum of the virtual photon, i.e., the transverse form factor. We suggest that major experimental deviations from our results could signal additional short-ranged parts of the two body current and/or possible ..delta..-..delta.. components in the deuteron.

• Research Organization: Ohio Univ., Athens (USA)
• OSTI ID: 5165281
• 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
AMPLITUDES
BARYON RESONANCES
BARYONS
BASIC INTERACTIONS
BOSONS
CROSS SECTIONS
DELTA-1236 RESONANCES
ELECTROMAGNETIC INTERACTIONS
ELECTRON-DEUTERON INTERACTIONS
ELECTROPRODUCTION
ELEMENTARY PARTICLES
FERMIONS
FORM FACTORS
HADRONS
INTERACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
MESONS
N RESONANCES
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PIONS
PSEUDOSCALAR MESONS
RESONANCE PARTICLES