g-factors measurement of magnetic rotation band in <SUP>85</SUP>Zr

YUAN Da-Qing; ZHENG Yong-Nan; ZHOU Dong-Mei; ZUO Yi; FAN Ping; LIU Meng; WU Xiao-Guang; ZHU Li-Hua; LI Guang-Sheng; XU Guo-Ji; FAN Qi-Wen; ZHANG Xi-Zhen; ZHU Sheng-Yun

Chinese Physics C> 2008, Vol. 32> Issue(S2) : 170-173

g-factors measurement of magnetic rotation band in ⁸⁵Zr

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The magnetic-rotational band in ⁸⁵Zr was populated by the fusion-evaporation reaction ⁶⁰Ni(²⁸Si, 2pn)⁸⁵Zr with a 98 MeV Si beam from the HI-13 tandem accelerator at China Institute of Atomic Energy. The g-factors of the high spin states of this magnetic rotation band in ⁸⁵Zr were measured by the TMF-IMPAD method for the first time. The measured g-factors decrease with the increasing of spin. It implies that the valence neutron alignment is more rapid than that of the valence proton, which leads to a decrease of g-factors along the band.

References

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. Bohr A. Phys. Rev., 1951, 81: 1342. Frauendorf S. Rev. Modern Phys., 2001, 73: 4623. Chmel S et al. Phys. Rev. Lett., 1997, 79: 20024. Hubel H. Progress in Particle and Nuclear Physics, 2005,54: 1-695. Baldsiefen G et al. Nucl. Phys. A, 1994, 574: 5216. Frauendorf S, Reif J, Winter G J. Nucl. Phys. A, 1996, 601:41-557. Frauendorf S, MENG J. Z Phys. A, 1996, 356: 263-2798. Clark R M, Macchiavelli A O. Annu. Rev. Nucl. Part. Sci.,2000, 50: 19. Chmel S et al. Phys. Rev. Lett., 1997, 79: 200210. WANG Zhi-Ming et al. HEP NP, 2003, 27: 24 (in Chi-nese)11. Tandel S K, Kore S R, Patel S B et al. Phy. Rev. C, 2002,65: 054307-112. ZHU Sheng-Yun et al. Chinese J. Nuclear Physics, 1996,18: 17113. ZHU Sheng-Yun, LUO Qi, LI Guang-Sheng et al. Chin.Phys. Lett., 2000, 17: 56014. Benczer-Koller, Hass N, Sak J. Ann. Rec. Nucl. Part. Sci.,1980, 30: 5315. SHU N K B, Melnik D, Brennan J M et al. Phys. Rev. C,1980, 21: 182816. Ribas R V. Nucl. Instr. Methods A, 1993, 328: 553-55817. Speidl K H, Kenn O, Nowacki F. Progress in Particle and Nuclear Physics, 2005, 49: 91

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YUAN Da-Qing, ZHENG Yong-Nan, ZHOU Dong-Mei, ZUO Yi, FAN Ping, LIU Meng, WU Xiao-Guang, ZHU Li-Hua, LI Guang-Sheng, XU Guo-Ji, FAN Qi-Wen, ZHANG Xi-Zhen and ZHU Sheng-Yun. g-factors measurement of magnetic rotation band in ⁸⁵Zr[J]. Chinese Physics C, 2008, 32(S2): 170-173.

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Received: 2008-07-17
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

g-factors measurement of magnetic rotation band in ⁸⁵Zr

Corresponding author: YUAN Da-Qing,

Received Date: 2008-07-17

Accepted Date: 1900-01-01

Available Online: 2008-01-03

Abstract: The magnetic-rotational band in ⁸⁵Zr was populated by the fusion-evaporation reaction ⁶⁰Ni(²⁸Si, 2pn)⁸⁵Zr with a 98 MeV Si beam from the HI-13 tandem accelerator at China Institute of Atomic Energy. The g-factors of the high spin states of this magnetic rotation band in ⁸⁵Zr were measured by the TMF-IMPAD method for the first time. The measured g-factors decrease with the increasing of spin. It implies that the valence neutron alignment is more rapid than that of the valence proton, which leads to a decrease of g-factors along the band.

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g-factors measurement of magnetic rotation band in 85Zr

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g-factors measurement of magnetic rotation band in 85Zr

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g-factors measurement of magnetic rotation band in ⁸⁵Zr

g-factors measurement of magnetic rotation band in ⁸⁵Zr