Quasielastic ( e , e sup prime ) sum rule saturation

Journal Article · Fri Sep 01 04:00:00 EDT 1989 · Physical Review (Section) C: Nuclear Physics; (USA)

DOI:https://doi.org/10.1103/PhysRevC.40.1159· OSTI ID:5395236

Chinn, C R ^[1]; Picklesimer, A ^[2]; Van Orden, J W ^[3]

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1. Department of Physics and Astronomy, University of Maryland, College Park, Maryland 20742 (US) Physics Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
2. Physics Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
3. Continuous Electron Beam Accelerator Facility, Newport News, Virginia 23606

A microscopic Green's function doorway formalism is used to study Coulomb sum rule saturation in inclusive quasielastic electron scattering as a function of momentum transfer. Form factor, kinematical restriction, and final-state interaction effects on the approach to saturation are examined in detail, as are the roles of nonhermiticity, energy dependence, and the analytic behavior of the final-state interactions. The implications of relativistic kinematics and dynamics for the approach to saturation at not-too-high values of the momentum transfer are assessed. Because the pair production of relativistic treatments destroys the asymptotic nature of the nonrelativistic Coulomb sum rule, the degree to which a regime of validity can be expected for this sum rule, and its location, is considered. The breakdown of the sum rule as the momentum transfer increases is also examined. Similar theoretical studies of an analogous nonrelativistic transverse sum in its saturation region are developed as well. Theoretical predictions are compared with the experimental data for {sup 40}Ca both directly and using a variety of theoretical prescriptions and limits. Neutron knockout contributions and associated uncertainties due to ambiguity in the free neutron form factors are examined.

• OSTI ID: 5395236
• Journal Information: Physical Review (Section) C: Nuclear Physics; (USA), Journal Name: Physical Review (Section) C: Nuclear Physics; (USA) Vol. 40:3; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CALCIUM 40 TARGET
CHARGED-PARTICLE REACTIONS
ELECTRON REACTIONS
EQUATIONS
FINAL-STATE INTERACTIONS
FUNCTIONS
GREEN FUNCTION
INTERACTIONS
LEPTON REACTIONS
NUCLEAR REACTIONS
SATURATION
SUM RULES
TARGETS