Momentum transfer dependence of medium effects in the (e,e{prime}) longitudinal response
- Hampton Univ., VA (United States). Dept. of Physics
Recent {sup 56}Fe(e,e{prime}) data at momentum transfer {vert_bar}{bar 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.
- Research Organization:
- Washington Univ., Seattle, WA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
- DOE Contract Number:
- FG06-90ER40561
- OSTI ID:
- 10128233
- Report Number(s):
- DOE/ER/40561--117; ON: DE94007267; IN: INT93-00-42; BR: 35KB01000/KB0300000; CNN: Grant HRD91-54080
- Country of Publication:
- United States
- Language:
- English
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