MOMENTUM-TRANSFER DEPENDENCE OF MEDIUM EFFECTS IN THE (E,E') LONGITUDINAL RESPONSE

被引：11

作者：

FRANK, MR

机构：

[1] HAMPTON UNIV, DEPT PHYS, HAMPTON, VA 23668 USA

[2] CONTINUOUS ELECTRON BEAM ACCELERATOR FACIL CTR, NEWPORT NEWS, VA 23606 USA

来源：

PHYSICAL REVIEW C | 1994年 / 49卷 / 01期

关键词：

D O I：

10.1103/PhysRevC.49.555

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Recent Fe-56(e,e(l)) data at momentum transfer /q/ = 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.

引用

页码：555 / 558

页数：4

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