Three-Body Forces and Neutron-Rich Exotic Nuclei
Three-Body Forces and Neutron-Rich Exotic Nuclei
复制标题
三体力和富中子奇异核
DOI：
10.1007/s00601-013-0667-4
复制
发表时间：
2013
期刊：
影响因子：
1.6
通讯作者：
Toshio Suzuki
中科院分区：
文献类型：
--
作者：
T. Otsuka;Toshio Suzuki
将讨论与奇异核有关的三体力物理。三核子力（3 NF），特别是Fujita-Miyazawa 3 NF，被证明是解决长期存在的氧滴线问题的关键，这偏离了稳定线的基本趋势。三体力对价中子之间的有效相互作用产生排斥作用，使基态束缚减少。然后将氧气滴注管放置在正确的位置。与中子物质的关系。将介绍钙同位素的应用。3 NF引起的壳层演化描述了单粒子能量的提高和轨道之间分裂的扩大。这与所谓的壳淬火相反。计算了Ca同位素的2+能级，表明N = 32和34的亚幻数结构大致相同。
Physics of three-body forces in connection to exotic nuclei will be discussed. Three-nucleon forces (3NF), especially Fujita–Miyazawa 3NF, are shown to be the key for the solution to the long-standing problem of oxygen drip line, which deviates from basic trend towards the stability line. Three-body forces produce repulsive modifications to effective interaction between valence neutrons, and make the ground states less bound. The oxygen drip line is then located at the right place. The relation to the neutron matter is presented. Applications to Ca isotopes will be presented. The shell evolution due to the 3NF depicts the raising of single-particle energies and the widening of splitting among the orbits. This is in contrast to the so-called shell quenching. The 2+ levels are calculated for Ca isotopes, suggesting about the same sub-magic structure for N = 32 and 34.