Variational formulation of nuclear fluid dynamics.
Variational formulation of nuclear fluid dynamics.
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核流体动力学的变分公式。
DOI：
10.1103/physrevc.32.2049
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发表时间：
1985
期刊：
影响因子：
--
通讯作者：
Constança da Providncia
中科院分区：
文献类型：
--
作者：
Lucília P. Brito;Constança da Providncia
本文提出了一种新的巨共振的流体动力学描述，它避免了标度近似，并考虑了第一声和零声之间的相互作用。新的方法导致方程满足求和规则S/sub -/1，S/sub 1/，和S/sub 3/的电模式和求和规则S/sub 1/的磁模式。该模型描述了表面模，并将低激发模与巨共振分离。给出了/sup 208/Pb能谱的数值计算结果。
A new fluid dynamical description of giant resonances which avoids the scaling approximation and takes into account the interplay between first sound and zero sound is presented. The new method leads to equations satisfying the sum rules S/sub -/1, S/sub 1/, and S/sub 3/ for the electric modes and the sum rule S/sub 1/ for the magnetic modes. The model describes surface modes and separates the low lying modes from the giant resonances. Numerical results for the energy spectrum of /sup 208/Pb are presented.