Effect of Rotational Degree of Freedom on the Enhanced Prescission Particle Emission in 10.6MeV/u <SUP>84</SUP>Kr+<SUP>27</SUP>Al Reaction

YE Wei

Chinese Physics C> 2002, Vol. 26> Issue(1) : 52-57

Effect of Rotational Degree of Freedom on the Enhanced Prescission Particle Emission in 10.6MeV/u ⁸⁴Kr+²⁷Al Reaction

YE Wei ^,

Department of Physics,Southeast of University,Nanjing 210096,China

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Abstract：
Effect of the rotational degree of freedom of In nucleus in three dimension space on prescission particle emission in 10.6MeV/u and 8.5MeV/u ⁸⁴Kr+²⁷Al collisions was studied in the framework of a statistical model. The calculation results show that for the latter incident energy,particle emission is insensitive to the rotational degree of freedom,while for the former one,the incorporation of this factor leads to the reduction of the extracted fission delay time from 20×10^－21s to 7.5×10^－21s,indicating the existence of this effect. The result also demonstrates that this effect is unable to completely account for the experimental data. In addition,the effect of rotational degree of freedom on particle evaporation prior to scission was found to depend on the excitation energy.

References

[1]

. Newton J O et al. Nucl. Phys., 1988, A483: 126—1522. Hinde D J et al. Phys. Rev., 1992, C45: 1229—1259 3. Lestone J P et al. Phys. Rev. Lett., 1991, 67: 1078—10814. Paul P, Thoennessen M. Annu. Rev. Nucl. Part. Sci., 1994, 44: 65—1085. Kramers H A. Physica, 1940, 7: 2846. Weidenmuller H A et al. Phys. Rev., 1984, C29: 879—884 7. Frobrich P et al. Nucl. Phys., 1993, A556: 281—3068. Lestone J P. Phys. Rev., 1999, C59: 1540—1544 9. Charity R J et al. Nucl. Phys., 1988, A483: 371—405 10. Nakagawa T et al. Phys. Rev., 1996, C53: 977—1000 11. JIANG D X et al. Chin. Phys. Lett., 1998, 15(2): 95—97

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[4]	YE Wei , SHEN WenQing . Effect of Deformation on Prescission Particle Emission in the Reaction of 10.6 MeV/u ⁸⁴Kr+²⁷Al. Chinese Physics C, 2000, 24(10): 945-948.
[5]	Tian Wendong , Wang Qi , Li Songlin , Lu Jun , Luo Yixiao . Measurement of Excitation Function and Analysis of StatisticalProperty in ²⁷Al+²⁷Al mssipative Reaction. Chinese Physics C, 1999, 23(4): 334-339.
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[8]	Ye Wei , Shen Wenqing , Ma Yugang , Feng Jun . Fission Time of the Reaction of 10.6MeV/u ⁸⁴Kr(²⁷Al,Quasi-fission)in Dynamical Model. Chinese Physics C, 1997, 21(4): 348-355.
[9]	Ye Wei , Shen Wenqing , Ma Yugang , Feng Jun . Azimuthal Distribution and Azimuthal Correlation of the Particles in 10.6MeV/u ⁸⁴Kr+²⁷Al Collision. Chinese Physics C, 1997, 21(1): 1-7.
[10]	He Zhiyong¹ , J.Peter² , J.C.Angelique² , G.Bizard² , R.Brou² , D.Cussol² , A.Kerambrun² , J.P.Patry² , R.Regimbart² , J.C.Steckmeyerr² , B.Tamain² , E.Vient² , G.Auger³ , C.Cabot<sup . Study of Collective Flow for ⁶⁴Zn+²⁷Al, Collisions at 57 MeV/u. Chinese Physics C, 1994, 18(9): 800-806.
[11]	YIN Xu , SHEN Wen-Qing , ZHU Yong-Tai , ZHAN Wen-Long , FENG En-Pu , XIE Yuan-Xiang , WANG Qi , LI Song-Lin . THE RESEARCH OF THE DISSIPATION PROCESS AND THE NUCLEON TRANSFER PRODUCED BY 80.9MeV ¹⁶O ON ²⁷Al. Chinese Physics C, 1988, 12(4): 521-528.
[12]	CAI Xu , QIAN Wan-Yan , ZHOU Dai-Cui , ZHOU Jing-Chen . INTERACTION FREE PATH AND PROJECTILE α-FRAGMENT MULTIPLICITY DISTRIBUTIONS IN ⁸⁴Kr-EMULSION COLLISIONS AT 1.4A GeV. Chinese Physics C, 1988, 12(5): 581-583.
[13]	SHEN Wen-Qing , ZHU Yong-Tai , ZHAN Wen-Long , GUO Zhong-Yan , YIN Shu-Zhi , QIAO Wei-Min , WU En-Jiu . INVESTIGATION OF ¹⁶O+²⁷Al REACTION AT BOMBARDING ENERGIES BELOW 5.3MeV/A. Chinese Physics C, 1987, 11(2): 250-258.
[14]	SHEN Wen-Qing , ZHAN Wen-Long , ZHU Yong-Tai , YIN Shu-Zhi , GUO Zhong-Yan , QI Wei-Min , FAN Guo-Ying , JIN Gen-Ming , LI Song-Lin , ZHANG Zhen , ZHANG Yu-Hu . COINCIDENCE MEASUREMENT BETWEEN α-PARTICLES AND PROJECTILE-LIKE FRAGMENTS IN REACTION OF 82.7MeV ¹⁶O ON ²⁷Al. Chinese Physics C, 1987, 11(1): 104-110.
[15]	FENG En-Pu , WANG Qi , ZHU Yong-Tai , YIN Xu , MIAO He-Bin , SUN Shu-Ming , LI Song-Lin , WU Zhong-Li , FAN Guo-Ying , XIE Yuan-Xiang , ZHAN Wen-Long . STUDY OF DEEP INELASTIC COLLISION ¹²C+²⁷Al AT ENERGY 61.8MeV. Chinese Physics C, 1986, 10(3): 323-329.
[16]	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.
[17]	SHEN Wen-Qing , ZHU Yong-Tai , YIN Shu-Zhi , GUO Zhong-Yan , ZHAN Wen-Long , JIN Gen-Ming , QIAO Wei-Min , WU En-Jiu , JIANG Cheng-Lie . RESEARCH OF RELAXATION PROCESS INDUCED BY 80.6MeV ¹⁶O ON ²⁷Al. Chinese Physics C, 1985, 9(5): 611-617.
[18]	SHEN Wen-Qing , YIN Shu-Lan , GUO Zhong-Yan , ZHAN Wen-Long , ZHU Yong-Tai , JIN Gen-Ming , QIAO Wei-Min , WU En-Jiu , JIANG Cheng-Lie . MEASURMENT OF PROJECTILE-LIKE FRAGMENTS PRODUCED BY 80.6MeV¹⁶O ON ²⁷Al. Chinese Physics C, 1985, 9(3): 332-340.
[19]	XIE Yuan-Xiang , WU Guo-Hua , ZHU Yong-Tai , MIAO Rong-Zhi , FENG En-Pu , YIN Xu , MIAO He-Bin , CAI Jing-Xiang , SHEN Wen-Qing , SUN Shu-MiNG , WEI Jian-Jun , LI Song-Lin . MEASUREMENT AND ANALYSIS OF EMITTED α PARTICLES IN REACTIONS OF ¹²C BOMBARDING ¹²C,²⁷Al AND ^natCa. Chinese Physics C, 1985, 9(1): 71-76.
[20]	XIE Yuan-Xiang , ZHU Young-Tai , FEN En-Pu , YIN Xu , MIAO He-Bing , CAI Jing-Xiang , LI Fa-Wei , SHEN Wen-Qing , SUN Shu-Ming , WEI Jian-Jun , LI Song-Ling , XIAO Qing-Xian , WANG Qi , JIA Sheng-Ming , DUO Han-Hong . INVESTIGATION OF DIC FOR REACTION ¹²C+²⁷Al AT ENERGY 68MeV AND FOR REACTION ¹²C+^natCa AT ENERGY 68.6MeV. Chinese Physics C, 1984, 8(6): 748-754.

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YE Wei. Effect of Rotational Degree of Freedom on the Enhanced Prescission Particle Emission in 10.6MeV/u ⁸⁴Kr+²⁷Al Reaction[J]. Chinese Physics C, 2002, 26(1): 52-57.

YE Wei. Effect of Rotational Degree of Freedom on the Enhanced Prescission Particle Emission in 10.6MeV/u ⁸⁴Kr+²⁷Al Reaction[J]. Chinese Physics C, 2002, 26(1): 52-57. shu

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Received: 2001-02-21
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通讯作者: 陈斌, [email protected]

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Effect of Rotational Degree of Freedom on the Enhanced Prescission Particle Emission in 10.6MeV/u ⁸⁴Kr+²⁷Al Reaction

Corresponding author: YE Wei,

Department of Physics,Southeast of University,Nanjing 210096,China

Received Date: 2001-02-21

Accepted Date: 1900-01-01

Available Online: 2002-01-05

Abstract: Effect of the rotational degree of freedom of In nucleus in three dimension space on prescission particle emission in 10.6MeV/u and 8.5MeV/u ⁸⁴Kr+²⁷Al collisions was studied in the framework of a statistical model. The calculation results show that for the latter incident energy,particle emission is insensitive to the rotational degree of freedom,while for the former one,the incorporation of this factor leads to the reduction of the extracted fission delay time from 20×10^－21s to 7.5×10^－21s,indicating the existence of this effect. The result also demonstrates that this effect is unable to completely account for the experimental data. In addition,the effect of rotational degree of freedom on particle evaporation prior to scission was found to depend on the excitation energy.

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Effect of Rotational Degree of Freedom on the Enhanced Prescission Particle Emission in 10.6MeV/u ⁸⁴Kr+²⁷Al Reaction

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Effect of Rotational Degree of Freedom on the Enhanced Prescission Particle Emission in 10.6MeV/u ⁸⁴Kr+²⁷Al Reaction

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Effect of Rotational Degree of Freedom on the Enhanced Prescission Particle Emission in 10.6MeV/u 84Kr+27Al Reaction

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通讯作者: 陈斌, [email protected]

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Effect of Rotational Degree of Freedom on the Enhanced Prescission Particle Emission in 10.6MeV/u 84Kr+27Al Reaction

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Effect of Rotational Degree of Freedom on the Enhanced Prescission Particle Emission in 10.6MeV/u ⁸⁴Kr+²⁷Al Reaction

Effect of Rotational Degree of Freedom on the Enhanced Prescission Particle Emission in 10.6MeV/u ⁸⁴Kr+²⁷Al Reaction