论文标题
$ n = 126 $封闭外壳的异构配置的难题
A puzzle on isomeric configurations in and around $N=126$ closed shell
论文作者
论文摘要
寻找一致的核配置的难题，以解释$ {9/2}^ - $，$ {8}^+$和$ {21/2}^ - $ n = 126 $ n = 126 $ obles的$ {9/2}^ - $，$ {8}^+$ n = 126 $ n = 126 $ obles的封闭式壳。 Though $h_{9/2}$ is the dominant orbital near Fermi energy, the role of configuration mixing from the surrounding $f_{7/2}$ and $i_{13/2}$ orbitals is found to be very important for the consistent explanation of all the isomeric properties such as the $B(E2)$ rates, $Q-$moments and $g-$factors.封闭的外壳$ n = 126 $同性异构体的结构性行为与$ n = 124 $和$ n = 128 $ sisotonic异构体非常相似，这些异构体分别具有两个中子孔和两个中子粒子。这是由于核多体哈密顿式的配对对称性。作为确认，还计算了这些异构体的微观壳模型占用，以$ n = 126 $链，支持普遍的资历结果。还介绍了使用Odd-Proton $ {9/2}^ - $状态（$ z = 81 $），BI（$ z = 83 $），AT（$ z = 85 $）和FR（$ z = 87 $）同位素的其他参数。
The puzzle of finding consistent nuclear configurations for explaining both the decay probabilities and moments of the ${9/2}^-$, ${8}^+$ and ${21/2}^-$ isomers in and around $N=126$ closed shell has been approached in the generalized seniority scheme. Though $h_{9/2}$ is the dominant orbital near Fermi energy, the role of configuration mixing from the surrounding $f_{7/2}$ and $i_{13/2}$ orbitals is found to be very important for the consistent explanation of all the isomeric properties such as the $B(E2)$ rates, $Q-$moments and $g-$factors. The structural behavior of the closed shell $N=126$ isotonic isomers turns out to be very similar to the $N=124$ and $N=128$ isotonic isomers which have two neutron-holes and two neutron-particles, respectively. This is due to the pairing symmetries of nuclear many-body Hamiltonian. As a confirmation, the microscopic shell model occupancies are also calculated for these isomers in $N=126$ chain which support the generalized seniority results. Additional arguments using the systematics of odd-proton ${9/2}^-$ states in Tl ($Z=81$), Bi ($Z=83$), At ($Z=85$) and Fr ($Z=87$) isotopes are also presented.
