γ Degree of Freedom for the <SUP>178</SUP>Hf Isomeric State

TU Ya; CHEN Yong-Shou; GAO Zao-Chun

近期发现有不法分子冒充我刊与作者联系，借此进行欺诈等不法行为，请广大作者加以鉴别，如遇诈骗行为，请第一时间与我刊编辑部联系确认（《中国物理C》（英文）编辑部电话：010-88235947,010-88236950），并作报警处理。

本刊再次郑重声明：

（1）本刊官方网址为cpc.ihep.ac.cn和https://iopscience.iop.org/journal/1674-1137

（2）本刊采编系统作者中心是投稿的唯一路径，该系统为ScholarOne远程稿件采编系统，仅在本刊投稿网网址（https://mc03.manuscriptcentral.com/cpc）设有登录入口。本刊不接受其他方式的投稿，如打印稿投稿、E-mail信箱投稿等，若以此种方式接收投稿均为假冒。

（3）所有投稿均需经过严格的同行评议、编辑加工后方可发表，本刊不存在所谓的“编辑部内部征稿”。如果有人以“编辑部内部人员”名义帮助作者发稿，并收取发表费用，均为假冒。

《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 2006, Vol. 30> Issue(S2) : 109-111

γ Degree of Freedom for the ¹⁷⁸Hf Isomeric State

China Institute of Atomic Energy, Beijing 102413, China2 Institute of Theoretical Nuclear Physics, Chinese Academy of Sciences, Beijing 100080, China

Abstract
HTML
Reference
Related

PDF

Abstract：
We have perfomed calculations for the six rotational bands in ¹⁷⁸Hf which have been found experimentally by using triaxial projected shell model (TPSM). The γ band can be well reproduced with γ=22°. By using the same γ value, the present calculations predict a γ-band built on ^178m2Hf(16⁺) state, and its band head (I=14⁺)lies about 900keV above the ^178m2Hf(16⁺) state. This 14⁺ state should be rather easily excited from the 16⁺ isomeric state because of the same intrinsic configuration of these two states. It is hope that the 14⁺ state could have more probable chance to decay into the ground state band than that from the ^178m2Hf(16⁺) state, and then to realize the de-excitation of the isomeric state.

References

[1]

. Apranamian A, Sun Y. Nature Phys., 2005, 1: 80-812. Walker P M, Carroll J J. Phys. Today, 2005, 58: 39-443. Walker P M, Dracoulis G D. Nature, 1999, 399: 35-404. Sherman M S. Science Technol. Rev., 2005, July/August:24-255. Ahmad I, Banar J C, Becker J A et al. Phys. Rev., 2005,C71: 0243116. Sheikh J A, Hara K. Phys. Rev. Lett., 1999, 82: 39687. GAO Z C, SUN Y, CHEN Y S. Phys. Lett., 2006, B634:1958. Jain, Sheline, Sood. Rev. Mod. Phys., 1990, 62: 4009. Hayes A B, Cline D, WU C Y et al. Phys. Rev. Lett., 2002,89: 24250110. Mullins S M, Dracoulis G D, Byrne A P et al. Phys. Lett.,1997, B400: 40111. Mullins S M, Dracoulis G D, Byrne A P et al. Phys. Lett.,1997, B393: 279-284

[1]	Mushtaq Abed Al-Jubbori , Khalaf Ajaj Al-Mtiuty , Khaliel. I. Saeed , Fadhil I. Sharrad . Properties of even ^168-178Hf isotopes using IBM-1 and SEF. Chinese Physics C, 2017, 41(8): 084103. doi: 10.1088/1674-1137/41/8/084103
[2]	YE Wei , WU Feng , YANG Hong-Wei . Langevin study of neutron emission in the reactions ¹⁶O+¹⁸¹Ta and ¹⁹F+¹⁷⁸Hf. Chinese Physics C, 2008, 32(10): 816-819. doi: 10.1088/1674-1137/32/10/010
[3]	ZHOU Feng-Qun , ZHAI Zi-Nan , TUO Fei , LUO Jun-Hua , KONG Xiang-Zhong . A Formula Used to Calculate Cross Section of Isomerous State with Characteristic Gamma-Ray of Ground State in a Special Case and Its Application. Chinese Physics C, 2007, 31(7): 625-628.
[4]	AN Guang-Peng , YU Shao-Ying , SHEN Cai-Wan , CHEN Yong-Shou . Study of Triaxial Superdeformation in ¹⁶⁸Hf. Chinese Physics C, 2006, 30(7): 625-627.
[5]	GONG Lun-Xun , YU Lei . Low-Lying Excited High-K Multi-quasiparticle Bands in 178 179Hf. Chinese Physics C, 2005, 29(10): 960-963.
[6]	WU He-Yu , WANG Jun-Xiang , JIN Gen-Ming . Lifetime of Isomer in High Charge States. Chinese Physics C, 2003, 27(7): 603-609.
[7]	GAN Zai-Guo , LIU Zhong , ZHANG Yu-Hu , PAN Qiang-Yan . A New Isomer State in ¹³⁶Ba. Chinese Physics C, 2002, 26(8): 814-817.
[8]	HUANG Xiao-Long . Systematics of Isomeric Cross Section Ratio for Neutron-Induced Reactions. Chinese Physics C, 2001, 25(3): 229-236.
[9]	ZHOU XiaoHong . Identification and Study of a High-Spin Isomer in ¹⁴³Nd. Chinese Physics C, 2000, 24(5): 408-413.
[10]	Sun Baoxi , Li Lei , Ning Pingzhi , Zhao Enguang . Effect of △-Isobar in Strange Hadronic Matter. Chinese Physics C, 1999, 23(12): 1203-1208.
[11]	Liu Zhong , Sun Xiangfu , Guo Yingxiang , Lei Xiangguo , Chen Xinfeng , Zhou Xiaohong , Zhang Yuhu , Jin Hanjuan , Luo Yixiao , Wen Shuxian , Yuan Guanjun , Li Guangsheng , Yang Chunxiang , Liu Xiang . Lifetime Measurement of the Negative-Parity Isomers in ¹¹⁷Xe. Chinese Physics C, 1997, 21(10): 881-885.
[12]	Zhong Jiquan , Zhang Xueqian . Non-axial Parameter γ Effects on Even-Even Er Isotopes. Chinese Physics C, 1997, 21(2): 176-179.
[13]	Huang Xiaolong , Cai Dunjiu . Isomeric Cross Section Ration for (n,2n)Reaction. Chinese Physics C, 1997, 21(5): 453-457.
[14]	Lin Xinwei , Liao Boqin , Zheng Renrong . A Study for Nuclei ¹⁶⁶Hf₉₄—¹⁷⁰Hf₉₈ Using Cranking Shell Model with PNC Method. Chinese Physics C, 1995, 19(4): 359-364.
[15]	DI Yao-Min . g-Boson Degree of Freedom in Vibrational Regions. Chinese Physics C, 1991, 15(7): 660-668.
[16]	GE Ling-Xiao , LIU Jian-Ye , WANG Shun-Jin . RELAXATION OF SINGLE PARTICLE DEGREES OF FREEDOM IN HEAVY ION COLLISION. Chinese Physics C, 1989, 13(3): 245-251.
[17]	HUANG Chao-Hui , WANG De-An , MA Wei-Xing . THE QUARK DEGREES OF FREEDOM IN HIGH ENERGY COMPOSITE PARTICLE SCATTERING. Chinese Physics C, 1989, 13(6): 535-538.
[18]	DI Yao-Min , SU Yao-Zhong . THE DEGREE OF FREEDOM OF F-SPIN AND NUCLEAR ROTATIONAL SPECTRA. Chinese Physics C, 1987, 11(2): 277-281.
[19]	GUI Shou-Zao , LIU Jing-Yi , XIAO Gen-Lai , TIAN Jia-Qi . A NEW TRANSITION BRANCH OF THE 5.2 SEC ISOMER IN ¹⁸³W. Chinese Physics C, 1986, 10(3): 354-357.
[20]	Fission group , Nuclear physics laboratory . THE SHAPE ISOMER ^240mPu. Chinese Physics C, 1978, 2(1): 83-86.

Access

Get Citation

TU Ya, CHEN Yong-Shou and GAO Zao-Chun. γ Degree of Freedom for the ¹⁷⁸Hf Isomeric State[J]. Chinese Physics C, 2006, 30(S2): 109-111.

TU Ya, CHEN Yong-Shou and GAO Zao-Chun. γ Degree of Freedom for the ¹⁷⁸Hf Isomeric State[J]. Chinese Physics C, 2006, 30(S2): 109-111. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2006-10-16
Revised: 1900-01-01

Article Metric

Article Views(3169)
PDF Downloads(695)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

γ Degree of Freedom for the ¹⁷⁸Hf Isomeric State

Corresponding author: TU Ya,

China Institute of Atomic Energy, Beijing 102413, China2 Institute of Theoretical Nuclear Physics, Chinese Academy of Sciences, Beijing 100080, China

Received Date: 2006-10-16
Accepted Date: 1900-01-01
Available Online: 2006-01-03

Abstract: We have perfomed calculations for the six rotational bands in ¹⁷⁸Hf which have been found experimentally by using triaxial projected shell model (TPSM). The γ band can be well reproduced with γ=22°. By using the same γ value, the present calculations predict a γ-band built on ^178m2Hf(16⁺) state, and its band head (I=14⁺)lies about 900keV above the ^178m2Hf(16⁺) state. This 14⁺ state should be rather easily excited from the 16⁺ isomeric state because of the same intrinsic configuration of these two states. It is hope that the 14⁺ state could have more probable chance to decay into the ground state band than that from the ^178m2Hf(16⁺) state, and then to realize the de-excitation of the isomeric state.