TRIPLE-SHAPE COEXISTENCE AND SUPERDEFORMATION IN Pb ISOTOPES

被引:7
|
作者
Naz, Tabassum [1 ]
Ahmad, Shakeb [2 ]
Abusara, H. [3 ]
机构
[1] Aligarh Muslim Univ, Dept Phys, Aligarh, Uttar Pradesh, India
[2] Aligarh Muslim Univ, Womens Coll, Phys Sect, Aligarh, Uttar Pradesh, India
[3] Birzeit Univ, Dept Phys, Birzeit, Palestine
来源
ACTA PHYSICA POLONICA B | 2018年 / 49卷 / 09期
关键词
NEUTRON-DEFICIENT PB; MEAN-FIELD-THEORY; EXCITATION-ENERGIES; CHARGE RADII; INTRUDER STATES; ALPHA-DECAY; OCTUPOLE STRUCTURE; FINE-STRUCTURE; EVEN-EVEN; BANDS;
D O I
10.5506/APhysPolB.49.1653
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Triple-shape coexistence and superdeformation in Pb isotopes with neutron numbers N = 96-138 is studied. The constrained calculations are performed within the Relativistic Hartree-Bogoliubov (RHB) model using DD-ME2, DD-PC1, and NL3* force parameters, and pairing interaction separable in momentum space. Triple-shape coexistence (spherical, prolate and oblate) manifests themselves in a clear manner in Pb184-190 nuclei with axial RHB calculations. Triaxial RHB calculations further confirm the findings. Superdeformed minimum is observed for Pb188-220 isotopes, and the corresponding excitation energy, deformation and depth of well are comparable within different force parameters used. The behaviour with neutron number of the superdeformed excitation energy, two-neutron separation energy in the ground state and superdeformed minimum, and its differential are fairly reproducing the trend of the available experimental data. The present numerical results are compared with Macro-microscopic Finite Range Droplet Model (FRDM) and Hartree-Fock-Bogoliubov (HFB) model based on the interaction Gogny-D1S force. Overall, a fairly satisfactory agreement is found within the different force parameters and the calculated and experimental results.
引用
收藏
页码:1653 / 1681
页数:29
相关论文
共 50 条
  • [1] Shape coexistence in Sr isotopes
    Maya-Barbecho, E.
    Garcia-Ramos, J. E.
    PHYSICAL REVIEW C, 2022, 105 (03)
  • [2] Nuclear shape coexistence in Po isotopes: An interacting boson model study
    Garcia-Ramos, J. E.
    Heyde, K.
    PHYSICAL REVIEW C, 2015, 92 (03):
  • [3] Quest of shape coexistence in Zr isotopes
    Garcia-Ramos, Jose-Enrique
    Heyde, Kris
    PHYSICAL REVIEW C, 2019, 100 (04)
  • [4] Nuclear shape evolution and shape coexistence in Zr and Mo isotopes
    Kumar, Pankaj
    Thakur, Virender
    Thakur, Smriti
    Kumar, Vikesh
    Dhiman, Shashi K.
    EUROPEAN PHYSICAL JOURNAL A, 2021, 57 (01):
  • [5] Triaxiality softness and shape coexistence in Mo and Ru isotopes
    Abusara, H.
    Ahmad, Shakeb
    Othman, S.
    PHYSICAL REVIEW C, 2017, 95 (05)
  • [6] Correlation between the shape coexistence and stability in Mo and Ru isotopes
    Aggarwal, Mamta
    Saxena, G.
    Parab, Pranali
    NUCLEAR PHYSICS A, 2024, 1044
  • [7] Investigation of shape coexistence in 118-128Te isotopes
    Sabri, H.
    Jahangiri, Z.
    Mohammadi, M. A.
    NUCLEAR PHYSICS A, 2016, 946 : 11 - 28
  • [8] Nuclear shape coexistence: A study of the even-even Hg isotopes using the interacting boson model with configuration mixing
    Garcia-Ramos, J. E.
    Heyde, K.
    PHYSICAL REVIEW C, 2014, 89 (01):
  • [9] Study of shape coexistence in the 180-190Hg isotopes by SO(6) representation of eigenstates
    Sabri, H.
    Asadi, A. Ghale
    Jabbarzade, O.
    Mobarake, S. K. Mousavi
    INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS, 2017, 26 (09)
  • [10] Interplay between shape-phase transitions and shape coexistence in the Zr isotopes
    Gavrielov, N.
    Leviatan, A.
    Iachello, F.
    PHYSICA SCRIPTA, 2020, 95 (02)