Nuclear structure of 178Hf related to the spin-16, 31-year isomer

Yang Sun; Xian Rong Zhou; Gui Lu Long; En Guang Zhao; Philip M. Walker

doi:10.1016/j.physletb.2004.03.066

Nuclear structure of ¹⁷⁸Hf related to the spin-16, 31-year isomer

Yang Sun
, Xian Rong Zhou
, Gui Lu Long
, En Guang Zhao
, Philip M. Walker^*

^*Corresponding author for this work

Department of Physics
University of Notre Dame
Jiangsu Normal University
Tsinghua University
Department of Physics
Chinese Academy of Sciences
CAS - Institute of Theoretical Physics
Department of Physics
University of Surrey
Department of Physics

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

46 Scopus citations

Abstract

The projected shell model is used to study the multi-quasiparticle and collective excitations of ¹⁷⁸Hf. With an axially symmetric basis, the spin-16 isomer at 2.4 MeV appears to be well separated in energy/spin space from other configurations. However, projected energy surface calculations suggest that ¹⁷⁸Hf has significant softness to axially asymmetric shapes, which can strongly modify the level distribution. The implications for photodeexcitation of the isomer are discussed.

Original language	English
Pages (from-to)	83-88
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	589
Issue number	3-4
DOIs	https://doi.org/10.1016/j.physletb.2004.03.066
State	Published - 10 Jun 2004
Externally published	Yes

Keywords

21.60.Cs
23.20.Lv
23.90.+w
27.70.+q
Isomers
Nuclear structure
Projected shell model

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10.1016/j.physletb.2004.03.066

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@article{59a5407ddd154fb2bb3ee91084bef585,

title = "Nuclear structure of 178Hf related to the spin-16, 31-year isomer",

abstract = "The projected shell model is used to study the multi-quasiparticle and collective excitations of 178Hf. With an axially symmetric basis, the spin-16 isomer at 2.4 MeV appears to be well separated in energy/spin space from other configurations. However, projected energy surface calculations suggest that 178Hf has significant softness to axially asymmetric shapes, which can strongly modify the level distribution. The implications for photodeexcitation of the isomer are discussed.",

keywords = "21.60.Cs, 23.20.Lv, 23.90.+w, 27.70.+q, Isomers, Nuclear structure, Projected shell model",

author = "Yang Sun and Zhou, \{Xian Rong\} and Long, \{Gui Lu\} and Zhao, \{En Guang\} and Walker, \{Philip M.\}",

year = "2004",

month = jun,

day = "10",

doi = "10.1016/j.physletb.2004.03.066",

language = "英语",

volume = "589",

pages = "83--88",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "3-4",

}

TY - JOUR

T1 - Nuclear structure of 178Hf related to the spin-16, 31-year isomer

AU - Sun, Yang

AU - Zhou, Xian Rong

AU - Long, Gui Lu

AU - Zhao, En Guang

AU - Walker, Philip M.

PY - 2004/6/10

Y1 - 2004/6/10

N2 - The projected shell model is used to study the multi-quasiparticle and collective excitations of 178Hf. With an axially symmetric basis, the spin-16 isomer at 2.4 MeV appears to be well separated in energy/spin space from other configurations. However, projected energy surface calculations suggest that 178Hf has significant softness to axially asymmetric shapes, which can strongly modify the level distribution. The implications for photodeexcitation of the isomer are discussed.

AB - The projected shell model is used to study the multi-quasiparticle and collective excitations of 178Hf. With an axially symmetric basis, the spin-16 isomer at 2.4 MeV appears to be well separated in energy/spin space from other configurations. However, projected energy surface calculations suggest that 178Hf has significant softness to axially asymmetric shapes, which can strongly modify the level distribution. The implications for photodeexcitation of the isomer are discussed.

KW - 21.60.Cs

KW - 23.20.Lv

KW - 23.90.+w

KW - 27.70.+q

KW - Isomers

KW - Nuclear structure

KW - Projected shell model

UR - https://www.scopus.com/pages/publications/2442451660

U2 - 10.1016/j.physletb.2004.03.066

DO - 10.1016/j.physletb.2004.03.066

M3 - 文章

AN - SCOPUS:2442451660

SN - 0370-2693

VL - 589

SP - 83

EP - 88

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 3-4

ER -

Nuclear structure of ¹⁷⁸Hf related to the spin-16, 31-year isomer

Abstract

Keywords

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