Triaxial shape in Os-Pt region from ground states to collective rotational states

Shuifa Shen; Xiujie Wang; Tingdun Wen; Feng Pan; Jianzhong Gu; Lihua Zhu; Xiaoguang Wu; J. P. Draayer; Shijie Zheng; Hongliang Liu; Yongbo Chen; Tingtai Wang

doi:10.1142/S0217732310032329

Triaxial shape in Os-Pt region from ground states to collective rotational states

Shuifa Shen^*
, Xiujie Wang
, Tingdun Wen
, Feng Pan
, Jianzhong Gu
, Lihua Zhu
, Xiaoguang Wu
, J. P. Draayer
, Shijie Zheng
, Hongliang Liu
, Yongbo Chen
, Tingtai Wang

^*Corresponding author for this work

East China University of Technology
Fundamental Science for National Defense
Liaoning Normal University
Louisiana State University
Zhongyuan University of Technology
North University of China
China National Nuclear Corporation
Peking University

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

In order to study the deformation of the nuclei which belongs to the transitional region between strongly deformed and spherical nuclei, the calculations of the total Routhian surfaces by means of the pairing-deformation- frequency self-consistent cranked shell model were carried out in order to investigate shape evolution in even-mass Os and Pt isotopes ( ^176-202Os and ^182-204Pt) starting from the static nuclear ground states. It is found that some nuclear ground states such as in ¹⁹⁶Os and ^188-194Pt are neither oblate nor prolate. Instead, the ground-state minima in these nuclei are axially asymmetric in shape. In addition, a complementary approach is used to extract equilibrium γ₀ value (nonaxially symmetric equilibrium shape parameter), which support our predictions.

Original language	English
Pages (from-to)	805-813
Number of pages	9
Journal	Modern Physics Letters A
Volume	25
Issue number	10
DOIs	https://doi.org/10.1142/S0217732310032329
State	Published - 28 Mar 2010
Externally published	Yes

Keywords

Shape rigidity
Total Routhian surface
Triaxial shape

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10.1142/S0217732310032329

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title = "Triaxial shape in Os-Pt region from ground states to collective rotational states",

abstract = "In order to study the deformation of the nuclei which belongs to the transitional region between strongly deformed and spherical nuclei, the calculations of the total Routhian surfaces by means of the pairing-deformation- frequency self-consistent cranked shell model were carried out in order to investigate shape evolution in even-mass Os and Pt isotopes ( 176-202Os and 182-204Pt) starting from the static nuclear ground states. It is found that some nuclear ground states such as in 196Os and 188-194Pt are neither oblate nor prolate. Instead, the ground-state minima in these nuclei are axially asymmetric in shape. In addition, a complementary approach is used to extract equilibrium γ0 value (nonaxially symmetric equilibrium shape parameter), which support our predictions.",

keywords = "Shape rigidity, Total Routhian surface, Triaxial shape",

author = "Shuifa Shen and Xiujie Wang and Tingdun Wen and Feng Pan and Jianzhong Gu and Lihua Zhu and Xiaoguang Wu and Draayer, \{J. P.\} and Shijie Zheng and Hongliang Liu and Yongbo Chen and Tingtai Wang",

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day = "28",

doi = "10.1142/S0217732310032329",

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TY - JOUR

T1 - Triaxial shape in Os-Pt region from ground states to collective rotational states

AU - Shen, Shuifa

AU - Wang, Xiujie

AU - Wen, Tingdun

AU - Pan, Feng

AU - Gu, Jianzhong

AU - Zhu, Lihua

AU - Wu, Xiaoguang

AU - Draayer, J. P.

AU - Zheng, Shijie

AU - Liu, Hongliang

AU - Chen, Yongbo

AU - Wang, Tingtai

PY - 2010/3/28

Y1 - 2010/3/28

N2 - In order to study the deformation of the nuclei which belongs to the transitional region between strongly deformed and spherical nuclei, the calculations of the total Routhian surfaces by means of the pairing-deformation- frequency self-consistent cranked shell model were carried out in order to investigate shape evolution in even-mass Os and Pt isotopes ( 176-202Os and 182-204Pt) starting from the static nuclear ground states. It is found that some nuclear ground states such as in 196Os and 188-194Pt are neither oblate nor prolate. Instead, the ground-state minima in these nuclei are axially asymmetric in shape. In addition, a complementary approach is used to extract equilibrium γ0 value (nonaxially symmetric equilibrium shape parameter), which support our predictions.

AB - In order to study the deformation of the nuclei which belongs to the transitional region between strongly deformed and spherical nuclei, the calculations of the total Routhian surfaces by means of the pairing-deformation- frequency self-consistent cranked shell model were carried out in order to investigate shape evolution in even-mass Os and Pt isotopes ( 176-202Os and 182-204Pt) starting from the static nuclear ground states. It is found that some nuclear ground states such as in 196Os and 188-194Pt are neither oblate nor prolate. Instead, the ground-state minima in these nuclei are axially asymmetric in shape. In addition, a complementary approach is used to extract equilibrium γ0 value (nonaxially symmetric equilibrium shape parameter), which support our predictions.

KW - Shape rigidity

KW - Total Routhian surface

KW - Triaxial shape

UR - https://www.scopus.com/pages/publications/77951697441

U2 - 10.1142/S0217732310032329

DO - 10.1142/S0217732310032329

M3 - 文章

AN - SCOPUS:77951697441

SN - 0217-7323

VL - 25

SP - 805

EP - 813

JO - Modern Physics Letters A

JF - Modern Physics Letters A

IS - 10

ER -

Triaxial shape in Os-Pt region from ground states to collective rotational states

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Keywords

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