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

β-Delayed Proton Decays of¹³³Sm and¹⁴⁹Yb

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

Abstract
HTML
Reference
Related

PDF

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

[1]	A. Gómez Camacho,J. Lubian,H. Q. Zhang,Shan-Gui Zhou. CDCC calculations of fusion of⁶Li with targets¹⁴⁴Sm and¹⁵⁴Sm:effect of resonance states. Chinese Physics C, 2017, 41(12): 124103.doi:10.1088/1674-1137/41/12/124103
[2]	Xing-Cai Guan,Yong-Kai Lu,Hou-Jun He,Jiang-Tao Zhao,Qiang Wang,Kai-Hong Fang,Xuan Meng,Tie-Shan Wang,Jirohta Kasagi. Deuterium depth distribution study in Yb. Chinese Physics C, 2017, 41(5): 054002.doi:10.1088/1674-1137/41/5/054002
[3]	H. Eslamizadeh,F. Bagheri. Simulation of the fission dynamics of the excited compound nuclei²⁰⁶Po and¹⁶⁸Yb produced in the reactions¹²C+¹⁹⁴Pt and¹⁸O+¹⁵⁰Sm. Chinese Physics C, 2017, 41(4): 044101.doi:10.1088/1674-1137/41/4/044101
[4]	CHEN Fang-Qi,SUN Yang,ZHOU Xian-Rong. Level statistics for the even-even Yb isotopes. Chinese Physics C, 2009, 33(S1): 24-26.doi:10.1088/1674-1137/33/S1/008
[5]	LOU Jian-Ling,LI Zhi-Huan,YE Yan-Lin,CAO Zhong-Xin,JIANG Dong-Xing,HUA Hui,ZHENG Tao,LI Xiang-Qing,GE Yu-Cheng,WU Cui-E,LI Chen,PANG Dan-Yang,LU Fei,FAN Feng-Ying,MA Li-Ying. Property Optimization and Test for β-Delayed Neutron Detection Array. Chinese Physics C, 2006, 30(S2): 205-207.
[6]	XU Shu-Wei,XIE Yuan-Xiang,XING Ye-Bing,XU Fu-Rong,LIU Hong-Liang,LI Zhan-Kui. β-Delayed Proton Decays of¹⁴⁰Tb and¹⁴¹Dy as Well as the Spin and Parity of¹⁴³Dy. Chinese Physics C, 2006, 30(6): 526-529.
[7]	XU Shu-Wei,LI Zhan-Kui,XIE Yuan-Xiang,GUO Wen-Tao. β-Delayed Proton Decays in the Rare-Earth Region Near Drip Line. Chinese Physics C, 2006, 30(S2): 131-135.
[8]	ZHOU Xian-Rong,LONG Gui-Lu,LI Yan-Song. Beta Decay in¹⁷⁶Yb. Chinese Physics C, 2004, 28(S1): 69-71.
[9]	XU Shu-Wei,LI Zhang-Kui,XIE Yuan-Xiang,HUANG Wen-Xue,SHU Neng-Chuan,CHEN Yong-Shou,XU Fu-Rong,WANG Kun. β-Delayed Proton Decays Near the Proton Drip Line. Chinese Physics C, 2004, 28(S1): 1-4.
[10]	WANG Xu-Dong,XU Shu-Wei,LI Zhan-Kui,XIE Yuan-Xiang,WU Zhe-Ying,XU Fu-Rong,GUO Bin,LENG Chang-Geng,WANG Chun-Fang,YU Yong. β-Delayed Proton Decay of⁹³Pd. Chinese Physics C, 2003, 27(4): 309-312.
[11]	ZHOU Xiao-Hong,ZHENG Yong,ZHANG Yu-Hu,GUO Ying-Xiang,LEI Xiang-Guo,LIU Zhong,HE Jian-Jun,LIU Min-Liang,LUO Wan-Ju,WEN Shu-Xian,ZHU Li-Hua,YANG Chun-Xiang. Shape Co-existence in¹⁵⁷Yb. Chinese Physics C, 2002, 26(5): 441-444.
[12]	WANG Xu-Dong,XIE Yuan-Xiang,XU Shu-Wei,LI Zhan-Kui,GUO Bin,LENG Chang-Geng,WANG Chun-Fang,YU Yong. (EC+β⁺) Decay of¹³³Sm and 1.1s Isomer of¹³³Pr. Chinese Physics C, 2002, 26(8): 797-802.
[13]	XIAO Zhi-Gang,WANG Hong-Wei,WU He-Yu,LIU Yong-Ying,JIN Gen-Ming,ZHANG Bao-Guo,LI Zu-Yu,DUAN Li-Min,WEI Zhi-Yong,WANG Su-Fang,LU Zhao-Hui,HU Rong-Jiang,ZHU Hai-Dong,CEN Ling,CHEN Ke-Liang,LI Xiang-Qing,CHEN Tao,HUA Hui. In-beam Measurement of β⁺Delay Particle Decay on RIBLL. Chinese Physics C, 2001, 25(5): 394-398.
[14]	WU Chong-Shi. Signature Partners in Superdeformed¹⁴⁹Tb. Chinese Physics C, 2001, 25(3): 205-211.
[15]	XU Shu-Wei,LI Zhan-Kui,XIE Yuan-Xiang,YU Yong,PAN Qiang-Yan,WANG Chun-Fang,XING Jian-Ping,MA Rui-Chang,CE Yuan-Xiu,WANG Xu-Dong. Nen β-Delayed Proton Decays in the Rare-Enrth Region Near the Proton Drip Line. Chinese Physics C, 2000, 24(S1): 73-80.
[16]	Xing Zheng,Chen Xingqu,Wang Xiaochun. △I=2 Energy Staggering in Superdeformed Bands in¹⁴⁹Gd(b1) and¹⁵³Dy(b1). Chinese Physics C, 1997, 21(S4): 87-92.
[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 Isotopes¹⁵³Er and¹⁵⁷Yb. 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/u¹²C with¹³³Cs. Chinese Physics C, 1993, 17(10): 873-877.
[19]	ZHOU Zong-Yuan. HALF-LIFE MEASUREMENT OF THE β-DELAYED TWO-PROTON DECAY NUCLIDE²⁶P. Chinese Physics C, 1988, 12(2): 246-251.
[20]	MA HUI-FANG,YANG ZHEN-GUO,GE LIN-XIAO. MEASUREMENT OF ISOMERIC CROSS-SECTION RATIO IN¹³³Cs(n,γ)¹³⁴Cs REACTION. Chinese Physics C, 1982, 6(3): 373-377.

Access

Get Citation

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

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2006-01-24
Revised: 1900-01-01

Article Metric

Article Views(5539)
PDF Downloads(666)
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

β-Delayed Proton Decays of¹³³Sm and¹⁴⁹Yb

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 reaction⁴⁰Ca+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 of¹³³Sm were extracted by fitting the experimental data with a statistical model calculation. The configuration-constrained nuclear potential energy surfaces of¹³³Sm were calculated by using the Woods-Saxon Strutinsky method. Comparing the experimental and calculated results, the spins and parities of¹³³Sm were assigned to be 5/2⁺and 1/2^－, which is reconciled with our published simple (EC+β⁺) decay scheme of¹³³Sm in 2001. In addition, our experimental data on the beta-delayed proton decay of¹⁴⁹Yb reported in Eur. Phys. J., 2001, A12: 1—4 was also analyzed by using the same method. The spin and parity of¹⁴⁹Yb was assigned to be 1/2^－.

HTML

Reference (1)

β-Delayed Proton Decays of¹³³Sm and¹⁴⁹Yb

Abstract：

References

Access

Article Metrics

Metrics

通讯作者:陈斌, bchen63@163.com

Email This Article