Journal
PHYSICAL REVIEW C
Volume 88, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.88.032201
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Funding
- China Scholarship Council [2010634019]
- US Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357]
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The gamma*N -> Delta(1232) transition is a window onto hadron shape deformation, the applicability of perturbative QCD at moderate momentum transfers, and the influence of nonperturbative phenomena on hadronic observables. We explain that the Ash-convention magnetic transition form factor must fall faster than the neutron's magnetic form factor and that nonzero values for the associated quadrupole ratios reveal the impact of quark orbital angular momentum within the nucleon and Delta(1232); and we show that these quadrupole ratios do approach their predicted asymptotic limits, albeit slowly.
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