Ab Initio Study of Electroweak Responses of 4He
Ab Initio Study of Electroweak Responses of 4He
复制标题
4He 电弱响应的从头算研究
DOI：
10.1007/s00601-012-0555-3
复制
发表时间：
2013
期刊：
影响因子：
1.6
通讯作者：
K. Arai
中科院分区：
文献类型：
--
作者：
W. Horiuchi;Y. Suzuki;K. Arai
在这篇文章中，我们讨论了基于完整四体计算的4he的电弱响应。利用显式相关基精确地得到了基态的波函数。将四核系统的四体终态明确地表示为包含具有3+1和2+1+1簇分区的构型的许多基函数的叠加。连续介质的处理方法有两种：一种是复标度法，另一种是显微icr -矩阵法。计算的光吸收截面与介子的静止能量一致。给出了自旋偶极子强度函数，并讨论了其与4he谱的关系。
In this contribution, we discuss the electroweak responses of4He based on a full four-body calculation. The wave function of the ground state is obtained accurately using an explicitly correlated basis. Four-body final states are expressed in a superposition of many basis functions including configurations which have 3+1 and 2+1+1 cluster partitions of four-nucleon system explicitly. The continuum is properly treated by taking the two approaches: one is the complex scaling method and the other is the microscopicR-matrix method. The calculated photoabsorption cross sections agree up to the rest energy of a pion. The spin–dipole strength function is also presented and its relationship between the spectrum of4He is discussed.