Δ-isobar effects in the four-nucleon system

被引：0
|
作者：
A. Deltuva
A. C. Fonseca
P. U. Sauer
机构：
[1] Centro de Física Nuclear da Universidade de Lisboa,Institut für Theoretische Physik
[2] Universität Hannover,undefined
来源：
Few-Body Systems | 2008年 / 44卷
关键词：
Single Nucleon;
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摘要：
The four-nucleon bound state and scattering below three-body breakup threshold are described. The description is based on a realistic coupled-channel potential which allows the excitation of a single nucleon to a Δ isobar. In the four-nucleon system the Δ isobar mediates effective two-, three- and four-nucleon forces. The effect of the four-nucleon force is found to be much smaller than the effect of the three-nucleon force.
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页码：183 / 185
页数：2
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