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

• 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.

•  [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. Frobrich 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. Frobrich 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. Frobrich P. Phys. Rep. C, 1984, 116: 33729. Frobrich P. Nucl. Phys. A, 1992, 545: 85430. Frobrich 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

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
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.
Milestone
Revised: 2008-02-27
Article Metric

Article Views(2289)
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

Title:
Email:

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

###### Corresponding author: YE Wei,

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.

Reference (1)

/