β-Delayed Proton Decays of <SUP>133</SUP>Sm and <SUP>149</SUP>Yb

XU Shu-Wei; XIE Yuan-Xiang; LI Zhan-Kui; XU Fu-Rong; LIU Hong-Liang

Chinese Physics C> 2006, Vol. 30> Issue(11) : 1067-1070

β-Delayed Proton Decays of ¹³³Sm and ¹⁴⁹Yb

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 Department of Technical Physics, Peking University, Beijing 100871, China

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Abstract：
¹³³Sm was produced via fusion evaporation in the reaction ⁴⁰Ca+⁹⁶Ru. Its β-delayed proton decay was studied by means of “p-γ” coincidence in combination with a He-jet tape transport system, including half-lives, proton energy spectra, γ-transitions following the proton emissions, and the branching ratios to the low-lying states in the grand-daughter nuclei. The possible spins and parities of ¹³³Sm were extracted by fitting the experimental data with a statistical model calculation. The configuration-constrained nuclear potential energy surfaces of ¹³³Sm were calculated by using the Woods-Saxon Strutinsky method. Comparing the experimental and calculated results, the spins and parities of ¹³³Sm were assigned to be 5/2⁺ and 1/2^－, which is reconciled with our published simple (EC+β⁺) decay scheme of ¹³³Sm in 2001. In addition, our experimental data on the beta-delayed proton decay of ¹⁴⁹Yb reported in Eur. Phys. J., 2001, A12: 1—4 was also analyzed by using the same method. The spin and parity of ¹⁴⁹Yb was assigned to be 1/2^－.

References

[1]

. Bogdanov D ., Demyanov A ., Karnaukhov V A et al.Nucl. Phys., 1977, A276: 229-2362. Wilmarth P ., Nitschke J ., Lemmertz P K et al. Z. Phys., 1985, A321: 179-1803. Breitenbach ., Braga ., Wood J L et al. Inst. of PhysicsConf. Serie., 1993, 132: 575-5784. XU Shu-We., XIE Yuan-Xian., WANG Xu-Dong et al. Eur.Phys. J., 200., A11: 277-278; Eur. Phys. J., 2001, A12: 375. (Erratum)5. Galindo-Uribarri ., Ward ., Andrews H R et al. Phys.Rev., 1996, C54: 1057-10696. XU Shu-We., LI Zhan-Ku., XIE Yuan-Xiang et al. Eur.Phys. J., 2001, A12: 1-47. XU Shu-We., LI Zhan-Ku., XIE Yuan-Xiang et al. Phys.Rev., 2005, C71: 0543188. XU Shu-We., XIE Yuan-Xian., LI Zhan-Kui et al. Phys.Rev., 1999, C60: 061302(R)9. XU Shu-We., XIE Yuan-Xian., LI Zhan-Kui et al. Z. Phys., 1999, A356: 227-22910. Khazov Y., Rodinov A A., Sakharov S et al. Nucl. DataSheet., 2005, 104: 497-79011. Hornshoj ., Wilsky ., Hansen P G et al. Nucl. Phys., 1972, A187: 609-62312. Hardy J C. Phys. Lett., 1982, B109: 242-24613. Nazarewicz ., Dudek ., Bengtsson R et al. Nucl. Phys., 1985, A435: 397-44714. Bhat M R. Nucl. Data Sheet., 2000, 89: 972-974

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[14]	WU Chong-Shi . Signature Partners in Superdeformed ¹⁴⁹Tb. Chinese Physics C, 2001, 25(3): 205-211.
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[16]	Zhang Yuhu . Experimental Observation of High Spin States in ¹⁴⁶Sm Nucleus. Chinese Physics C, 1997, 21(2): 110-115.
[17]	Xu Shuwei , Xie Yuanxiang , Pan Qiangyan , Zhang Juping , Zhang Xueqian , Wang Yihao , Ge Yuanxiu , Yin Xijin , Wang Chunfang , Zhang Tianmei , Liu Zhong , Guo Bing , Luo Yixiao , Xing Zheng , Chen Xingqu . First Study of EC/β⁺ Decay Schemes for Neutron-Deficient Isotopes ¹⁵³Er and ¹⁵⁷Yb. Chinese Physics C, 1995, 19(3): 193-202.
[18]	YANG Wei-Fan , ZHAO Zhi-Zheng , LI Zong-Wei , SUN Xiu-Rong , XIE Xiu-Jun , MU Wan-Tong , QIN Zhi , ZHANG Li , YANG Yong-Feng , SUN Ru-Lin . Measurment of the Iodine Isotopic Yields from the Interaction of 47MeV/u ¹²C with ¹³³Cs. Chinese Physics C, 1993, 17(10): 873-877.
[19]	ZHOU Zong-Yuan . HALF-LIFE MEASUREMENT OF THE β-DELAYED TWO-PROTON DECAY NUCLIDE ²⁶P. Chinese Physics C, 1988, 12(2): 246-251.
[20]	MA HUI-FANG , YANG ZHEN-GUO , GE LIN-XIAO . MEASUREMENT OF ISOMERIC CROSS-SECTION RATIO IN ¹³³Cs(n,γ) ¹³⁴Cs REACTION. Chinese Physics C, 1982, 6(3): 373-377.

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XU Shu-Wei, XIE Yuan-Xiang, LI Zhan-Kui, XU Fu-Rong and LIU Hong-Liang. β-Delayed Proton Decays of ¹³³Sm and ¹⁴⁹Yb[J]. Chinese Physics C, 2006, 30(11): 1067-1070.

XU Shu-Wei, XIE Yuan-Xiang, LI Zhan-Kui, XU Fu-Rong and LIU Hong-Liang. β-Delayed Proton Decays of ¹³³Sm and ¹⁴⁹Yb[J]. Chinese Physics C, 2006, 30(11): 1067-1070. shu

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Received: 2006-01-24
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

β-Delayed Proton Decays of ¹³³Sm and ¹⁴⁹Yb

Corresponding author: XU Shu-Wei,

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 Department of Technical Physics, Peking University, Beijing 100871, China

Received Date: 2006-01-24

Accepted Date: 1900-01-01

Available Online: 2006-11-05

Abstract: ¹³³Sm was produced via fusion evaporation in the reaction ⁴⁰Ca+⁹⁶Ru. Its β-delayed proton decay was studied by means of “p-γ” coincidence in combination with a He-jet tape transport system, including half-lives, proton energy spectra, γ-transitions following the proton emissions, and the branching ratios to the low-lying states in the grand-daughter nuclei. The possible spins and parities of ¹³³Sm were extracted by fitting the experimental data with a statistical model calculation. The configuration-constrained nuclear potential energy surfaces of ¹³³Sm were calculated by using the Woods-Saxon Strutinsky method. Comparing the experimental and calculated results, the spins and parities of ¹³³Sm were assigned to be 5/2⁺ and 1/2^－, which is reconciled with our published simple (EC+β⁺) decay scheme of ¹³³Sm in 2001. In addition, our experimental data on the beta-delayed proton decay of ¹⁴⁹Yb reported in Eur. Phys. J., 2001, A12: 1—4 was also analyzed by using the same method. The spin and parity of ¹⁴⁹Yb was assigned to be 1/2^－.

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β-Delayed Proton Decays of ¹³³Sm and ¹⁴⁹Yb

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β-Delayed Proton Decays of 133Sm and 149Yb

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β-Delayed Proton Decays of 133Sm and 149Yb

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β-Delayed Proton Decays of ¹³³Sm and ¹⁴⁹Yb

β-Delayed Proton Decays of ¹³³Sm and ¹⁴⁹Yb