论文标题
核巨型巨型共振来自改进的同胞依赖性玻尔兹曼 - uehling-uhlenbeck传输方法
Nucleus giant resonances from an improved isospin-dependent Boltzmann-Uehling-Uhlenbeck transport approach
论文作者
论文摘要
我们已经研究了Isoscal巨头四倍共振（ISGQR）和ISOVECTOR巨头偶极共振（IVGDR）$^{208} $ pb，基于改进的Isospin依赖性Boltzmann-Uehling-uehlling-uehlenbeck运输方法，使用了改进的等值依赖性和动量依赖性的互动。使用等核核子有效质量和核子核子横截面，分别重现了ISGQR强度函数的激发能和宽度，对称能量的斜率参数和中子有效的质量裂解在$ 36 <l <62 $ MEV和62 $ MEV和MEV和中子质量拆分内分别受到约束$0.08Δ<（m_ {n0}^* - m_ {p0}^*）/m <0.42Δ$，通过比较IVGDR的最终质心能量和电偶极极化性与实验数据。发现核子核子碰撞对产生的电偶极极化性具有相当大的影响，需要更准确地测量以限制等分源器核相互作用。
We have studied the isoscalar giant quadruple resonance (ISGQR) and the isovector giant dipole resonance (IVGDR) in $^{208}$Pb based on an improved isospin-dependent Boltzmann-Uehling-Uhlenbeck transport approach using an improved isospin- and momentum-dependent interaction. With the isoscalar nucleon effective mass and the nucleon-nucleon cross section which reproduces respectively the excitation energy and the width of the ISGQR strength function, the slope parameter of the symmetry energy and the neutron-proton effective mass splitting are constrained respectively within $36<L<62$ MeV and $0.08δ<(m_{n0}^*-m_{p0}^*)/m<0.42δ$, by comparing the resulting centroid energy of the IVGDR and the electric dipole polarizability with the experimental data. It is found that nucleon-nucleon collisions have considerable effects on the resulting electric dipole polarizability, which needs to be measured more accurately in order to pin down isovector nuclear interactions.
