Chinese Physics C > 2000, Vol. 24 > Issue(5): 408-413

Identification and Study of a High-Spin Isomer in¹⁴³Nd

ZHOU XiaoHong^,

Institute of Modern Physics,The Chinese Academy of Sciences,Lanzhou 730000,China2 RIKEN,Hirosawa 2—1, Wako,Saitama 351—01,Japan3 Department of Physics,Kyushu University,Hakozaki 6-10-1,Fukuoka812,Japan

Abstract
HTML
Reference
Related

PDF

Abstract：
The high spin states of ¹⁴³Nd have been studied in ¹³⁰Te( ¹⁸O,5n) reaction at a beam energy of 80MeV. Based on delayed γ-γ coincidence,γ ray angular distribution,and γ ray linear polarization measurements,a high-spin isomer in ¹⁴³Nd was identified for the first time with a measured half-life of (35±8) ns and J ^π=49/2 ⁺. The characteristic of the high-spin isomer in ¹⁴³Nd was stressed with a deformed independent particle model. The model assigned a stretched configuration of [ν(f _7/2h _9/2i _13/2)π(h2 11/2)] to the 49/2 ⁺isomer in ¹⁴³Nd As the isomers in the N=83 heavier isotones,the occurrence of the 49/2 ⁺isomer in ¹⁴³Nd can be interpreted to be caused by the sudden change in nuclear shape along the yrast line.

References

[1]

Andre S et al. Z. Phys. ,1990, A337:349[2] Mcneill J et al. Z. Phys.,1986,A325:27[3] Pedetsen J et al. Phys. Rev. Lett. ,1977,39:990[4] Hr}t}nan D C J M et al. Phys. Lett. ,1979,B84;301[5] Borggreen J et al. Z. Phys. ,1980,A294;113[6] Ferragut A et al. J. Phys. Soc. Jpn. ,1993,62:3343[7] Murakami T et al. Z. Phys. ,1993,A350:123[8] Ideguchi E et al. Z. Phys.,1995,A352:363[9] Odahara A et al. Nucl. Phys,1997,A620:363[10] bussing T et al. Phys. Scr. ,1981, 24: 258[11] Hatuser O et al. Nucl. Phys. ,1982, A379:287[12] Dafni E et al. Nucl. Phys. ,1985, A443;135[13] Tekyi-Mertsah O J et al. Phys. Rev. ,1994,050:R1759[14] Aziz S M et al. Phys. Rev. ,1990,041:1268[15] Caussyn D D et al. Phys. Rev. ,1991, 043: 2098[16] Fauerhach M et al. Phys. Rev.,1998, C58;826

Access

Get Citation

ZHOU XiaoHong. Identification and Study of a High-Spin Isomer in ¹⁴³Nd[J]. Chinese Physics C, 2000, 24(5): 408-413.

ZHOU XiaoHong. Identification and Study of a High-Spin Isomer in ¹⁴³Nd[J]. Chinese Physics C, 2000, 24(5): 408-413. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1999-04-16
Revised: 1900-01-01

Article Metric

Article Views(3560)
PDF Downloads(559)
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

Identification and Study of a High-Spin Isomer in¹⁴³Nd

ZHOU XiaoHong^,

Corresponding author:ZHOU XiaoHong,

Institute of Modern Physics,The Chinese Academy of Sciences,Lanzhou 730000,China2 RIKEN,Hirosawa 2—1, Wako,Saitama 351—01,Japan3 Department of Physics,Kyushu University,Hakozaki 6-10-1,Fukuoka812,Japan

Received Date:1999-04-16
Accepted Date:1900-01-01
Available Online:2000-04-05

Abstract:The high spin states of¹⁴³Nd have been studied in¹³⁰Te(¹⁸O,5n) reaction at a beam energy of 80MeV. Based on delayed γ-γ coincidence,γ ray angular distribution,and γ ray linear polarization measurements,a high-spin isomer in¹⁴³Nd was identified for the first time with a measured half-life of (35±8) ns and J^π=49/2⁺. The characteristic of the high-spin isomer in¹⁴³Nd was stressed with a deformed independent particle model. The model assigned a stretched configuration of [ν(f_7/2h_9/2i_13/2)π(h2 11/2)] to the 49/2⁺isomer in¹⁴³Nd As the isomers in the N=83 heavier isotones,the occurrence of the 49/2⁺isomer in¹⁴³Nd can be interpreted to be caused by the sudden change in nuclear shape along the yrast line.