Langevin study of neutron emission in the reactions 16O+181Ta and 19F+178Hf

YE Wei; WU Feng; YANG Hong-Wei

doi:10.1088/1674-1137/32/10/010

Chinese Physics C> 2008, Vol. 32> Issue(10) : 816-819 DOI: 10.1088/1674-1137/32/10/010

Langevin study of neutron emission in the reactions ¹⁶O+¹⁸¹Ta and ¹⁹F+¹⁷⁸Hf

Abstract
HTML
Reference
Related

PDF

Abstract：
The pre-scission neutrons measured in the reactions ¹⁶O+¹⁸¹Ta and ¹⁹F+¹⁷⁸Hf are studied via a Langevin equation coupled with a statistical decay model. We find that because of the mass asymmetry of different entrance channels, the spin distributions of compound nuclei would be different, consequently, the measured neutrons in these two reactions would also different. This means that the entrance channel will affect the particle emission in the fission process of hot nuclei.

References

[1]

. Andersen U J et al. Phys. Rev. Lett., 2007, 99: 1625022. Schmitt C et al. Phys. Rev. Lett., 2007, 99: 0427013. Benlliure J et al. Phys. Rev. C, 2006, 74: 0146094. Tishchenko V et al. Phys. Rev. Lett., 2005, 95: 1627015. Jurado B et al. Phys. Rev. Lett., 2004, 93: 0725016. Frobrich P. Nucl. Phys. A, 2007, 787: 170c7. YE W. Phys. Lett. B, 2007, 647: 1188. YE W. Phys. Rev. C, 2007, 76: 021604(R)9. YE W. Phys. Rev. C, 2007, 76: 041601(R)10. YE W. Phys. Rev. C, 2008, 77: 011302(R)11. Hilscher D, Rossner H. Ann. Phys. Fr., 1992, 17: 47112. Paul P, Thoennessen M. Annu. Rev. Nucl. Part. Sci., 1994,44: 5513. Diósezegi I et al. Phys. Rev. C, 2000, 61: 02461314. Back B B et al. Phys. Rev. C, 1999, 60: 04460215. Shidling P D et al. Phys. Rev. C, 2006, 74: 06460316. Frobrich P, Gontchar I I. Phys. Rep., 1998, 292: 13117. Abe Y et al., Phys. Rep., 1996, 275: 4918. Pomorski K et al. Nucl. Phys. A, 2000, 679: 2519. Nadtochy P N et al., Phys. Rev. C, 2002, 65: 06461520. YE W. Eur. Phys. J. A, 2003, 18: 57121. Singh H et al. Phys. Rev. C, 2006, 76: 04461022. Ignatyuk A V et al. Sov. J. Nucl. Phys., 1975, 21: 61223. Myers W D, Swiatecki W J. Nucl. Phys., 1966, 81: 124. Myers W D, Swiatecki W J. Ark. Fys., 1967, 36: 34325. Blann M. Phys. Rev. C, 1980, 21: 177026. Lynn J E. Theory of Neutron Resonance Reactions. Clarendon,Oxford, 196927. YANG H W, YE W. Chin. Phys. C (HEP NP), 2008,32: 18228. Frobrich P. Phys. Rep. C, 1984, 116: 33729. Frobrich P. Nucl. Phys. A, 1992, 545: 85430. Frobrich P, Gontchar I I. Nucl. Phys. A, 1993, 563: 326.31. Karpov A V et al. Phys. Rev. C, 2001, 63: 05461032. Nadtochy P N et al. Phys. Rev. C, 2005, 72: 05460833. Borunov M V et al. Nucl. Phys. A, 2008, 799: 5634. YE W. HEP NP, 2006, 30(8): 759 (in Chinese)35. Pomorski P, Hofmann H. Phys. Lett. B, 1991, 26: 16436. Hofmann H. Phys. Rep., 1997, 284: 137

[1]	Jian-Jun He , Ivano Lombardo , Daniele Dell'Aquila , Yi Xu , Li-Yong Zhang , Wei-Ping Liu . Thermonuclear ¹⁹F(p,α₀)¹⁶O reaction rate. Chinese Physics C, 2018, 42(1): 015001. doi: 10.1088/1674-1137/42/1/015001
[2]	Dong-Hong Zhang , Feng-Shou Zhang . Fragment distribution in ^78,86Kr+¹⁸¹Ta reactions. Chinese Physics C, 2018, 42(5): 054107. doi: 10.1088/1674-1137/42/5/054107
[3]	Mushtaq Abed Al-Jubbori , Khalaf Ajaj Al-Mtiuty , Khaliel. I. Saeed , Fadhil I. Sharrad . Properties of even ^168-178Hf isotopes using IBM-1 and SEF. Chinese Physics C, 2017, 41(8): 084103. doi: 10.1088/1674-1137/41/8/084103
[4]	H. Eslamizadeh , M. Pirpour . Study of pre-scission particle emissions and fission probability of the ¹⁷⁸W produced in fusion reactions. Chinese Physics C, 2014, 38(6): 064101. doi: 10.1088/1674-1137/38/6/064101
[5]	HOU Pei-You , SUN Xiao-Jun , YU Cheng-Gang , LU Xiao . Theoretical analysis of double-differential neutron emission cross sections for n+⁵⁶Fe reactions at incident energies of 7-13 MeV. Chinese Physics C, 2011, 35(1): 35-39. doi: 10.1088/1674-1137/35/1/008
[6]	ZHANG Jun-Jie , HU Bi-Tao . Cross section of reaction ¹⁸¹Ta(p,nγ)¹⁸¹W and the influence of the spin cut-off parameter on the cross section. Chinese Physics C, 2011, 35(12): 1100-1104. doi: 10.1088/1674-1137/35/12/004
[7]	LAN Chang-Lin , RUAN Xi-Chao , LIU Gang , ZHOU Zu-Ying , TANG Hong-Qing , KONG Xiang-Zhong . Development of a facility for research of charged particle emission induced by fast neutron reactions. Chinese Physics C, 2008, 32(S2): 183-185.
[8]	TU Ya , CHEN Yong-Shou , GAO Zao-Chun . γ Degree of Freedom for the ¹⁷⁸Hf Isomeric State. Chinese Physics C, 2006, 30(S2): 109-111.
[9]	GONG Lun-Xun , YU Lei . Low-Lying Excited High-K Multi-quasiparticle Bands in 178 179Hf. Chinese Physics C, 2005, 29(10): 960-963.
[10]	CHOU Jiu-Zi , YAN Xin-Yi , HE Ming , DONG Ke-Jun , ZHANG Chun-Hua , ZHANG Jin-Song , DENG Hui , CHEN Xi-Lin , JIANG Shan . Measurent of cross-section for ¹⁸¹Hf(n,γ)¹⁸²Hf Reaction. Chinese Physics C, 2005, 29(7): 648-650.
[11]	MING ZhaoYu , ZHANG FengShou , CHEN LieWen , ZHU ZhiYuan , ZHAN WenLong , GUO ZhongYan , XIAO GuoQing . Isospin Dependent Boltzmann-Langevin Equation and the Production Cross Section of ¹⁹Na. Chinese Physics C, 2000, 24(7): 656-661.
[12]	HU GuiQing , ZHAO Kui , JIANG Hua , GUO JiYu , FU ChangBo , LU XiuQin , LIANG Gang , LI ZhiChang , LI ShuYuan , LIU JianCheng . Measurement of Angular Distributions for Elastic Scattering of ¹⁶O+⁹⁴Zr and ¹⁶O+¹¹⁶Sn Reactions. Chinese Physics C, 2000, 24(8): 725-731.
[13]	Yao Lishan . Dispersion Optical Model Analysis of the Neutron Cross Section Anomalv for ¹⁶O. Chinese Physics C, 1997, 21(8): 740-744.
[14]	Liu Zuhua , Xu Jincheng , Zhang Huanqiao , Qian Xing , Qiao Yu , Lin Chengjian , Xu Kan . Subbarrier Complete Fusion-Fission Reactions of ¹⁶)O+²³²Th. Chinese Physics C, 1994, 18(6): 489-495.
[15]	Liu Zhuhua , Xu Jincheng , Zhang Huanqiao , Qian Xing , Qiao Yu , Lin Chengjian , Xu Kan . Subbarrier Complete Fusion-Fission Reactions of ¹⁶O+²³²Th. Chinese Physics C, 1994, 18(S2): 121-128.
[16]	LI Wen-Xin , LI Yun-Sheng , SUN Ru-Lin , SUN Tong-Yu , WU Ding-Qing , ZHAO Li-Li , ZHENG Yu-Ming , QI Da-Hai , SA Ben-Hao . Study on Target Residues From the Interaction of ¹⁸¹Ta with 45MeV/A ¹²C Ions. Chinese Physics C, 1991, 15(9): 832-835.
[17]	Li Wenxin , Li Yunsheng , Sun Rulin , Sun Tongyu , Wu Dingqing , Zhao Lili , Zheng Yuming , Qi Dahai , Sa Benhao . A Study of the Target Residues from the Interaction of ¹⁸¹Ta with 45 MeV/A ¹²C Ions. Chinese Physics C, 1991, 15(S4): 337-340.
[18]	YAO Li-Shan . Theoretical Calculation of a Complete Set of the Neutron Reaction Data for Ta-181. Chinese Physics C, 1991, 15(9): 852-860.
[19]	WANG Gao-Sheng , WANG Qi , ZHU Yong-Tai , WU Guo-Hua , WANG Xiao-Ming , LI Song-Lin , HU Xiao-Qing , YIN Xu , XU Hu-Shan , FAN Guo-Ying , FENG En-Pu , SONG Shi-Zhan , WU Zhong-Li , YIN Shu-Zhi , ZHANG Zhen . THE MEASUREMENT AND THEORETICAL ANALYSIS OF INCLUSIVE α-PARTICLE EMISSION IN 97MeV ¹⁶O+⁵¹V REACTION. Chinese Physics C, 1990, 14(3): 253-257.
[20]	ZHAN Wen-Long , SHEN Wen-Qing , ZHU Yong-Tai , QIAO Wei-Min , YIN Shu-Zhi , FAN Guo-Ying , JIN Gen-Ming , LI Song-Ling . THE STUDY OF α-EMISSION INDUCED BY ¹⁶O ON ²⁷Al. Chinese Physics C, 1986, 10(1): 63-67.

Access

Get Citation

YE Wei, WU Feng and YANG Hong-Wei. Langevin study of neutron emission in the reactions ¹⁶O+¹⁸¹Ta and ¹⁹F+¹⁷⁸Hf[J]. Chinese Physics C, 2008, 32(10): 816-819. doi: 10.1088/1674-1137/32/10/010

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2008-01-07
Revised: 2008-02-27

Article Metric

Article Views(2755)
PDF Downloads(640)
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

Langevin study of neutron emission in the reactions ¹⁶O+¹⁸¹Ta and ¹⁹F+¹⁷⁸Hf

Corresponding author: YE Wei,

Received Date: 2008-01-07

Accepted Date: 2008-02-27

Available Online: 2008-10-05

Abstract:

The pre-scission neutrons measured in the reactions ¹⁶O+¹⁸¹Ta and ¹⁹F+¹⁷⁸Hf are studied via a Langevin equation coupled with a statistical decay model. We find that because of the mass asymmetry of different entrance channels, the spin distributions of compound nuclei would be different, consequently, the measured neutrons in these two reactions would also different. This means that the entrance channel will affect the particle emission in the fission process of hot nuclei.

HTML

Reference (1)

Langevin study of neutron emission in the reactions ¹⁶O+¹⁸¹Ta and ¹⁹F+¹⁷⁸Hf

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Langevin study of neutron emission in the reactions ¹⁶O+¹⁸¹Ta and ¹⁹F+¹⁷⁸Hf

Corresponding author: YE Wei,

HTML

目录