Collective Band Structures of the Nuclei near N=82 Closed Shell in A=135 Region

ZHU Sheng-Jiang; LI Ming-Liang; CHE Xing-Lai; XIAO Shu-Dong; CHEN Yong-Jing; YU Ying-Nan; DING Hui-Bo; XU Qiang; ZHU Li-Hua; WEN Shu-Xian; WU Xiao-Guang; LI Guang-Sheng

Chinese Physics C> 2006, Vol. 30> Issue(S2) : 141-145

Collective Band Structures of the Nuclei near N=82 Closed Shell in A=135 Region

Department of Physics,Tsinghua University,Beijing 100084,China2 China Institute of Atomic Energy,Beijing 102413,China

Abstract
HTML
Reference
Related

PDF

Abstract：
Through heavy-ion nuclear reactions and in-beam γ-ray spectroscopy technique, the high spin states of odd A ¹³⁷La and odd-odd ¹³⁸Pr nuclei which are located near the N=82 closed shell on A=135 region, have been studied. The ¹³⁰Te(¹¹B,4n) and ¹²⁸Te(¹⁴N,4n) reactions were used to populate the level states for ¹³⁷La and ¹³⁸Pr respectively. The level schemes of these two nuclei have been extended. In ¹³⁷La, four collective bands have been newly identified. Among them, the near-yrast band is with weak prolate deformation, and another one belongs to a oblate band. In ¹³⁸Pr，six collective bands have been observed. The yrast band is with weak prolate deformation also, and all the other five bands, two of which are newly identified by the present work, are assigned as the oblate bands. The characteristics for these collective bands, such as the signature inversion, the configuration origination etc. have been discussed.

References

[1]

. Paul E S et al. Phys. Rev. Lett., 1987, 58: 9842. Paul E S et al. Phys. Rev., 1989, C40: 12553. Bark R A et al. Nucl. Phys., 2001, A691: 5774. ZHU S J et al. Eur. Phys. J., 2005, A24: 1995. ZHU S J et al. Phys. Rev., 2000, C62: 0443106. ZHU S J et al. Chin. Phys. Lett., 1999, 16: 6357. LIU Y et al. Phys. Rev., 1996, C54: 718. Nakai K et al. Phys. Lett., 1973, B44: 4439. Kortelahti M et al. Nucl. Phys., 1982, A376: 110. Rizzutto M A et al. Z. Phys., 1992, A344: 22111. Gangopadhyay G et al. Eur. Phys. J., 2005, A24: 17312. Bengtsson R et al. Nucl. Phys., 1972, A237: 13913. Frauendorf S et al. Phys. Lett., 1981, B100: 21914. Frauendorf S et al. Phys. Lett., 1983, B125: 21915. Müller-Veggian M et al. Nucl. Phys., 1978, A304: 116. Ludziejewski J et al. Z. Phys., 1976, A277: 35717. Petrache C M et al. Nucl. Phys.,1988, A635: 36118. Petrache C M et al. Nucl. Phys., 1996, A597: 10619. Petrache C M et al. Nucl. Phys., 1996, A603: 5020. Kumar V et al. Eur. Phys. J., 2003, A17: 15321. Bark R A et al. Nucl. Phys., 2001, A691: 57722. LUO P et al. High Energy Phys. and Nucl. Phys., 2004,28: 495 (in Chinese)(骆鹏等. 高能物理与核物理, 2004, 28: 495)

[1]	FAN Ping , YUAN Da-Qing , ZUO Yi , ZHENG Yong-Nan , ZHOU Dong-Mei , WU Xiao-Guang , LI Guang-Sheng , ZHU Li-Hua , XU Guo-Ji , FAN Qi-Wen , ZHANG Xi-Zhen , ZHU Sheng-Yun . Proton alignment in ⁸²Sr investigated by g-factor measurements. Chinese Physics C, 2009, 33(S1): 206-208. doi: 10.1088/1674-1137/33/S1/066
[2]	GUO Yun-Jun , HE Kang-Lin . Muon Identification Using the Efficiencies Ratio Method at BESⅡ. Chinese Physics C, 2007, 31(11): 1050-1055.
[3]	HUANG Wen-Xue , WANG Yue , ZHU Zhi-Chao , TIAN Yu-Lin , XU Hu-Shan , SUN Zhi-Yu , XIAO Guo-Qing , ZHAN Wen-Long . Experimental Study of the High-Voltage Breakdown and Simulations for the RFQ Cooler and Buncher RFQ1L. Chinese Physics C, 2006, 30(S2): 261-264.
[4]	YE Wei . Possible Dependence of Dissipation Strength on Angular Momentum. Chinese Physics C, 2006, 30(8): 759-760.
[5]	SHEN Shui-Fa , YU Xiao-Han . Decay of ⁸³Sr and Discussion of Its Daughter's Band Structures. Chinese Physics C, 2004, 28(S1): 78-80.
[6]	LI Ming-Liang , ZHU Sheng-Jiang , CHE Xing-Lai , YU Ying-Nan . Research on Two-Quasiparticle Bands in ⁹⁸Sr. Chinese Physics C, 2004, 28(S1): 75-77.
[7]	Guo Hua . In-medium QMC Model Parameters and Quark Condensation in Nuclear Matter. Chinese Physics C, 1999, 23(5): 459-468.
[8]	Yang Jianjun , Ma Boqiang , Li Guanglie . Non-perturbative Quark Propagator and the Study of the Non-trivial Q² Dependence in the Nucleon Structure Functions. Chinese Physics C, 1997, 21(2): 146-156.
[9]	Li Yangguo . Antiproton -Nucleus Charge Exchange Reaction and Inelastic Scattering. Chinese Physics C, 1996, 20(11): 1021-1027.
[10]	BES Collaboration . Experimental Study of Resonance f₂(1270) in the J/ψ Hadronic Decay. Chinese Physics C, 1993, 17(2): 97-106.
[11]	SANG Jian-Ping , LIU Chao-Shan , LIU Yong . Relation Between the Gap at Z=64 Subshell and the Abrupt Transition in the Region N=88～90. Chinese Physics C, 1991, 15(2): 150-157.
[12]	Sa Ben-hao , Zhang Xi-zhen , Li Zhu-xia , Shi Yi-jin . A PRIMARY RESEARCH OF THE PHONON RENORMALIZATION OF NUCLEAR FIELD THEORY. Chinese Physics C, 1980, 4(3): 398-400.
[13]	WU SHI-SHU . ON NUCLEAR SINGLE-PARTICLE POTENTIALS（Ⅲ）SINGLEPARTICLE ENERGIES DETERMINED BY THE NONHERMITIAN POTENTIAL U_αβ=M_αβ（ε_β）. Chinese Physics C, 1979, 3(4): 469-483.

Access

Get Citation

ZHU Sheng-Jiang, LI Ming-Liang, CHE Xing-Lai, XIAO Shu-Dong, CHEN Yong-Jing, YU Ying-Nan, DING Hui-Bo, XU Qiang, ZHU Li-Hua, WEN Shu-Xian, WU Xiao-Guang, LI Guang-Sheng and Collective Band Structures of the Nuclei near N=82 Closed Shell in A=135 Region[J]. Chinese Physics C, 2006, 30(S2): 141-145.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(3909)
PDF Downloads(650)
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

Collective Band Structures of the Nuclei near N=82 Closed Shell in A=135 Region

Corresponding author: ZHU Sheng-Jiang,

Department of Physics,Tsinghua University,Beijing 100084,China2 China Institute of Atomic Energy,Beijing 102413,China

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

Abstract: Through heavy-ion nuclear reactions and in-beam γ-ray spectroscopy technique, the high spin states of odd A ¹³⁷La and odd-odd ¹³⁸Pr nuclei which are located near the N=82 closed shell on A=135 region, have been studied. The ¹³⁰Te(¹¹B,4n) and ¹²⁸Te(¹⁴N,4n) reactions were used to populate the level states for ¹³⁷La and ¹³⁸Pr respectively. The level schemes of these two nuclei have been extended. In ¹³⁷La, four collective bands have been newly identified. Among them, the near-yrast band is with weak prolate deformation, and another one belongs to a oblate band. In ¹³⁸Pr，six collective bands have been observed. The yrast band is with weak prolate deformation also, and all the other five bands, two of which are newly identified by the present work, are assigned as the oblate bands. The characteristics for these collective bands, such as the signature inversion, the configuration origination etc. have been discussed.