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MESON-EXCHANGE CURRENT EFFECTS IN THE MAGNETIC ELECTROEXCITATION OF CA-48

被引：18
作者：
AMARO, JE
LALLENA, AM
机构：
[1] Departamento de Física Moderna, Universidad de Granada
来源：
NUCLEAR PHYSICS A | 1992年 / 537卷 / 3-4期
关键词：
D O I：
10.1016/0375-9474(92)90369-U
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 effects of the meson-exchange currents in the electroexcitation of magnetic states in 48Ca below l4 MeV of excitation energy and for momentum transfers up to 3.5 fm-1 have been calculated. In particular, their dependence with the momentum transferred to the target nucleus as well as with the excitation energy and the multipolarity of the nuclear states involved is analyzed in detail. Results for both pure 1p1h and RPA excitations are shown and compared. Two magnetic transition with multipolarity 2- have been found to be appreciably influenced by the exchange currents of pionic range.
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收藏
页码：585 / 605
页数：21
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