论文标题
形状共存岛：理论预测和实验证据
Islands of shape coexistence: theoretical predictions and experimental evidence
论文作者
论文摘要
基于基于双壳机制（3）原子核的对称性的双壳机制的无参数理论预测，以及使用DDME2使用DDME2函数的协变密度功能理论计算，这表明形状共存（SC）基于粒子激励机制在核图上的任何地方都无法限制在核图上，但属于核图的3.4-众所周知，是7-众所周知，是7-在岛屿上的限制4-7-7-在核心图中限制了4-7，是7-众所周知，是7-众所周知。 59-70、96-112、146-168质子或中子。 Systematics of data for even-even nuclei possessing K=0 (beta) and K=2 (gamma) bands support the existence of these islands, on which shape coexistence appears whenever the K=0 bandhead 0_2^+ and the first excited state of the ground state band 2_1^+ lie close in energy, with nuclei characterized by 0_2^+ lying below the 2_1^+ found in the center of these islands.此外，简要讨论了导致多种形状共存的简单理论机制。
Parameter-free theoretical predictions based on a dual shell mechanism within the proxy-SU(3) symmetry of atomic nuclei, as well as covariant density functional theory calculations using the DDME2 functional indicate that shape coexistence (SC) based on the particle-hole excitation mechanism cannot occur everywhere on the nuclear chart, but is restricted on islands lying within regions of 7-8, 17-20, 34-40, 59-70, 96-112, 146-168 protons or neutrons. Systematics of data for even-even nuclei possessing K=0 (beta) and K=2 (gamma) bands support the existence of these islands, on which shape coexistence appears whenever the K=0 bandhead 0_2^+ and the first excited state of the ground state band 2_1^+ lie close in energy, with nuclei characterized by 0_2^+ lying below the 2_1^+ found in the center of these islands. In addition a simple theoretical mechanism leading to multiple shape coexistence is briefly discussed.
