Collective Inertial Masses in Nuclear Reactions
Collective Inertial Masses in Nuclear Reactions
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DOI：
10.3389/fphy.2020.00016
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发表时间：
2020-01
期刊：
影响因子：
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通讯作者：
K. Wen;T. Nakatsukasa
中科院分区：
文献类型：
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作者：
K. Wen;T. Nakatsukasa
在大振幅集体动力学的微观理论描述方面，我们计算了低能核反应的惯性质量系数。在能量密度泛函的框架下，我们应用绝热自洽集体坐标（ASCC）方法和Inglis推转公式计算了平动和相对运动的惯性以及转动的惯性。以两个α粒子间的散射为例，研究了平均场势的奇次分量对集体惯性质量的影响. ASCC方法渐近地再现了相对运动和平移运动的精确质量。另一方面，当时间奇分量存在时，曲柄公式不能做到这一点。
Toward the microscopic theoretical description for large amplitude collective dynamics, we calculate the coefficients of inertial masses for low-energy nuclear reactions. Under the scheme of energy density functional, we apply the adiabatic self-consistent collective coordinate (ASCC) method, as well as the Inglis' cranking formula to calculate the inertias for the translational and the relative motions, in addition to those for the rotational motion. Taking the scattering between two α particles as an example, we investigate the impact of the time-odd components of the mean-field potential on the collective inertial masses. The ASCC method asymptotically reproduces the exact masses for both the relative and translational motions. On the other hand, the cranking formula fails to do so when the time-odd components exist.