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Momentum transfer dependence of medium effects in the ([ital e],[ital e][prime]) longitudinal response

Journal Article · · Physical Review, C (Nuclear Physics); (United States)
 [1]
  1. Department of Physics, Hampton University, Hampton, Virginia 23668 (United States) Continuous Electron Beam Accelerator Facility, 12000 Jefferson Avenue, Newport News, Virginia 23606 (United States)
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Recent [sup 56]Fe([ital e],[ital e][prime]) data at momentum transfer [vert bar][bold q][vert bar]=1.14 GeV display behavior which is qualitatively different from that of lower momentum transfers. An explanation of this difference is offered based on an analysis of the longitudinal response in nuclear matter. An ansatz is made for the momentum dependence of the nucleon self-energy functions in the nuclear medium which suppresses medium effects for momenta above the nucleon mass scale. This suppression is shown to improve the agreement with the high momentum transfer data, and offers a motivation for further experimental investigation in the momentum transfer region between 0.5 and 1.0 GeV.
OSTI ID:
5409264
Journal Information:
Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 49:1; ISSN 0556-2813; ISSN PRVCAN
Country of Publication:
United States
Language:
English

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Related Subjects

662330* -- Photon & Charged-Lepton Interactions with Hadrons-- (1992)
663110 -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663420 -- Lepton-Induced Reactions & Scattering-- (1992-)
663540 -- Nuclear Mass Ranges-- A=39-58-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHARGED-PARTICLE REACTIONS
ELECTRON REACTIONS
ELECTRON-NUCLEON INTERACTIONS
ENERGY
ENERGY RANGE
FUNCTIONS
GEV RANGE
GEV RANGE 01-10
INTERACTIONS
IRON 56 TARGET
LEPTON REACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
MATTER
MOMENTUM TRANSFER
NUCLEAR MATTER
NUCLEAR REACTIONS
PARTICLE INTERACTIONS
RESPONSE FUNCTIONS
SELF-ENERGY
TARGETS