Interplay between shape-phase transitions and shape coexistence in the Zr isotopes

被引：13

作者：

Gavrielov, N. ^{[1
]}

Leviatan, A. ^{[1
]}

Iachello, F. ^{[2
]}

机构：

[1] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel

[2] Yale Univ, Ctr Theoret Phys, Sloane Phys Lab, New Haven, CT 06520 USA

来源：

PHYSICA SCRIPTA | 2020年 / 95卷 / 02期

关键词：

quantum phase transitions in nuclei; nuclear shape-phase transitions; nuclear shape coexistence; Zr isotopes; interacting boson model of nuclei; INTERACTING BOSON MODEL; INTRUDER STATES; CLASSICAL LIMIT; DEFORMATION;

D O I：

10.1088/1402-4896/ab456b

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the evolution of structure in the zirconium isotopes where one of the most complex situations encountered in nuclear physics occurs. We demonstrate the role of two concurrent types of quantum phase transitions, sharing a common critical point. The first type, involves an abrupt crossing of coexisting normal and intruder configurations. The second type, involves a gradual shape-phase transition within the intruder configuration, changing from weakly-deformed to prolate-deformed and finally to gamma-unstable. Evidence for this scenario is provided by a detailed comparison with experimental data, using a definite algebraic framework.

引用

页数：10

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