2-PROTON EMISSION INDUCED BY REAL AND VIRTUAL PHOTONS

被引:36
作者
GIUSTI, C [1 ]
PACATI, FD [1 ]
RADICI, M [1 ]
机构
[1] IST NAZL FIS NUCL,PAVIA,ITALY
关键词
D O I
10.1016/0375-9474(92)90547-W
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
The cross sections of the (e, e'2p) and (gamma, 2p) reactions are calculated in an unfactorized form by integrating over the coordinates of the two ejected protons. Realistic short-range correlations and distorted wave functions for the two outgoing particles are included in the calculation. The nuclear current is the sum of a one- and a two-body part, corresponding to the process where a DELTA-resonance is excited in the intermediate state. The (e, e'2p) cross section essentially depends on correlations, while the two-body current gives a minor contribution. In the (gamma, 2p) cross section both effects are important. The asymmetry of the cross section produced by linearly polarized photons is extremely sensitive to the two-body current and could be exploited to investigate its contribution.
引用
收藏
页码:607 / 621
页数:15
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