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Resonant [ital P][sub 33] [ital S][sub 1+][sup (3/2)]([ital q][sup 2]) electroproduction multipole amplitude and the [Delta][ital N][gamma] scalar form factor [ital G][sub [ital C]][sup *]([ital q][sup 2])

Journal Article · · Physical Review, C (Nuclear Physics); (United States)
OSTI ID:7116896
 [1]
  1. Department of Physics, University of New Orleans, New Orleans, Louisiana 70148 (United States)
The resonant [ital P][sub 33] single-pion electroproduction multipole amplitude [ital S][sub 1][sup +(3/2)]([ital q][sup 2]) and the [Delta][ital N][gamma] scalar form factor [ital G][sub [ital C]][sup *]([ital q][sup 2]) are calculated nonperturbatively in terms of the well-known nucleon form factors [ital g][sub [ital A]]([ital q][sup 2]) and [ital G][sub [ital E]][sup [ital V]]([ital q][sup 2]). Results are in good agreement with experiment. Our treatment is completely relativistic with current conservation guaranteed. Assuming the usual dipole behavior for [ital g][sub [ital A]]([ital q][sup 2]) and [ital G][sub [ital E]][sup [ital V]]([ital q][sup 2]), we confirm that [ital G][sub [ital C]][sup *]([ital q][sup 2]) falls off asymptotically at the rate [ital q][sup [minus]6] as expected in perturbative QCD.
OSTI ID:
7116896
Journal Information:
Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 49:6; ISSN 0556-2813; ISSN PRVCAN
Country of Publication:
United States
Language:
English

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