R. W. Fearick, P. von Neumann-Cosel, S. Bacca, J. Birkhan, F. Bonaiti, I. Brandherm, G. Hagen, H. Matsubara, W. Nazarewicz, N. Pietralla, V. Yu. Ponomarev, P. -… 展开作者
R. W. Fearick, P. von Neumann-Cosel, S. Bacca, J. Birkhan, F. Bonaiti, I. Brandherm, G. Hagen, H. Matsubara, W. Nazarewicz, N. Pietralla, V. Yu. Ponomarev, P. -G. Reinhard, X. Roca-Maza, A. Richter, A. Schwenk, J. Simonis, A. Tamii
The electric dipole strength distribution in $^{40}$Ca between 5 and 25 MeV has been determined at RCNP, Osaka, from proton inelastic scattering experiments at very forward angles. Combined with total photoabsorption data at higher excitation energy, this enables an extraction of the electric dipole polarizability $α_\mathrm{D}$($^{40}$Ca) = 1.92(17) fm$^3$. Together with the measured $α_{\rm D}$ in $^{48}$Ca, it provides a stringent test of modern theoretical approaches, including coupled cluster calculations with chiral effective field theory interactions and state-of-the art energy density functionals. The emerging picture is that for this medium-mass region dipole polarizabilities are well described theoretically, with important constraints for the neutron skin in $^{48}$Ca and related equation of state quantities.
Revisiting neutron-skin thickness and dipole polarizability constraints on the symmetry energy in Antisymmetrized Molecular Dynamics
China Institute of Atomic Energy(中国原子能科学研究院);Tohoku University(东北大学);Guangxi Normal University(广西师范大学);Institute of Modern Physics, Chinese Academy of Sciences(中国科学院近代物理研究所)
Electric dipole polarizability constraints on neutron skin and symmetry energy
Technische Universität Darmstadt(达姆施塔特工业大学);Norwegian Nuclear Research Center and Department of Physics, University of Oslo(奥斯陆大学核研究中心与物理系);Research Center for Nuclear Physics, University of Osaka(大阪大学核物理研究中心)
本文通过实验研究核的电偶极极化度及其与中子皮肤厚度和中子富集物质方程 of state 的关系,利用相对论库仑激发技术,探讨中子皮肤和对称能量密度依赖性的约束。
Constraining the nuclear symmetry energy with electric dipole polarizability and neutron skin characteristics in \texorpdfstring{$^{208}\mathrm{Pb}$}{208Pb} within antisymmetrized molecular dynamics
China Institute of Atomic Energy(中国原子能科学研究院);Department of Physics, Graduate School of Science, Tohoku University(东北大学理学研究科物理学系);Guangxi Key Laboratory of Nuclear Physics and Technology, Guangxi Normal University(广西师范大学核物理与技术重点实验室);Southern Center for Nuclear-Science Theory (SCNT), Institute of Modern Physics, Chinese Academy of Sciences(中国科学院近代物理研究所南方核科学理论中心)
Precision extraction of the deuteron electric polarizability via the Baldin sum rule with full low-energy coverage
Shanghai Advanced Research Institute, Chinese Academy of Sciences(上海高等研究院,中国科学院);Shanghai Institute of Applied Physics, Chinese Academy of Sciences(上海应用物理研究所,中国科学院);University of Chinese Academy of Science(中国科学院大学);National Taiwan University(台湾大学);InQubator for Quantum Simulation (IQuS), Department of Physics, University of Washington(华盛顿大学物理学系量子模拟创新中心)