Surveying the role of excitation energy in probing nuclear dissipation

YE Wei

doi:10.1088/1674-1137/33/7/005

Chinese Physics C> 2009, Vol. 33> Issue(7) : 528-531 DOI: 10.1088/1674-1137/33/7/005

Surveying the role of excitation energy in probing nuclear dissipation

YE Wei ^,

Department of Physics, Southeast University, Nanjing 210096, China

Abstract
HTML
Reference
Related

PDF

Abstract：
A dynamical Langevin model is employed to calculate the excess of the evaporation residue cross sections of the ¹⁹⁴Pb nucleus over that
predicted by the standard statistical model as a function of nuclear dissipation strength. It is shown that large excitation energy can increase the effects of nuclear dissipation on the excess of the evaporation residues and the sensitivity of this excess to the dissipation strength, and that more higher excitation energies have little contribution to further raising this sensitivity. These results suggest that on the experimental side, producing those compound systems with moderate excitation energy is sufficient for a good determination of the pre-saddle nuclear dissipation strength by measuring the evaporation residue cross
section, and that forming an extremely highly excited system does not considerably improve the sensitivity of evaporation residues to the dissipation strength.

References

[1]

. Schmitt C et al. Phys. Rev. Lett., 2007, 99: 0427012. Andersen J U et al. Phys. Rev. Lett., 2007, 99: 1625023. Benlliure J et al. Phys. Rev. C, 2006, 74: 0146094. Mahata K et al. Phys. Rev. C, 2006, 74: 0413015. Shidling P D et al. Phys. Rev. C, 2006, 74: 0646036. Frobrich P, Gontchar I I. Phys. Rep., 1998, 292: 1317. Frobrich P. Nucl. Phys. A, 2007, 787: 170c8. Nadtochy P N et al. Phys. Rev. C, 2002, 65: 0646159. YE W. Phys. Lett. B, 2007, 647: 11810. YE W. Phys. Rev. C, 2007, 76: 021604(R)11. YE W. Phys. Rev. C, 2007, 76: 041601(R)12. Sadhukhan J, Pal S. Phys. Rev. C, 2008, 78: 011603(R)13. Hilscher D, Rossner H. Ann. Phys. Fr., 1992, 17: 47114. Back B B et al. Phys. Rev. C, 1999, 60: 04460215. Hui S K et al. Phys. Rev. C, 2000, 62: 05460416. Tishchenko V et al. Phys. Rev. Lett., 2005, 95: 16270117. Lott B et al. Phys. Rev. C, 2001, 63: 03461618. Jahnke U et al. Phys. Rev. Lett., 1999, 83: 495919. Jurado B et al. Phys. Rev. Lett., 2004, 93: 07250120. Chaudhuri G, Pal S. Eur. Phys. J. A, 2002, 14: 28721. YE W. Phys. Rev. C, 2008,77: 011302(R)22. Ignatyuk A V et al. Sov. J. Nucl. Phys., 1975, 21: 61223. Myers W D, Swiatecki W J. Nucl. Phys., 1961, 81:124. Myers W D, Swiatecki W J. Ark. Fys., 1967, 36: 34325. Blann M. Phys. Rev. C, 1980, 21: 177026. Lazarev A Yu, Gontchar I I, Mavlitov D N. Phys. Rev.Lett., 1993, 70: 1220

[1]	V. Dehghani , S. A. Alavi . Empirical formulas for proton decay half-lives: Role of nuclear deformation and Q-value. Chinese Physics C, 2018, 42(10): 104101. doi: 10.1088/1674-1137/42/10/104101
[2]	Jian Tian , Wei Ye . Effect of pre-equilibrium emission on probing postsaddle nuclear dissipation with neutrons. Chinese Physics C, 2016, 40(9): 094103. doi: 10.1088/1674-1137/40/9/094103
[3]	SONG Li-Hua , MIAO Wen-Dan , DUAN Chun-Gui . Energy loss of charm quarks from J/ψ production incold nuclear matter. Chinese Physics C, 2014, 38(12): 124103. doi: 10.1088/1674-1137/38/12/124103
[4]	LIU Bei-Bei , OUYANG Fei , CHEN Wei . Influence of coupling constants on nuclear symmetry energy. Chinese Physics C, 2013, 37(4): 044103. doi: 10.1088/1674-1137/37/4/044103
[5]	WANG Hong-Min , HOU Zhao-Yu , LIU Jia-Fu , SUN Xian-Jing . J/ψ-N center of mass energy dependence of nuclear absorption effect on J/ψ production. Chinese Physics C, 2010, 34(1): 22-27. doi: 10.1088/1674-1137/34/1/004
[6]	YE Wei . Surveying post-saddle nuclear dissipation with protons and α particles as probes. Chinese Physics C, 2010, 34(1): 45-48. doi: 10.1088/1674-1137/34/1/008
[7]	WU Feng , YE Wei . System size effects on probing nuclear dissipation with neutrons. Chinese Physics C, 2010, 34(5): 551-554. doi: 10.1088/1674-1137/34/5/007
[8]	FENG Sheng-Qin , DU Xiao-Chao . Dependence of multiplicity and transverse energy distributions on nuclear geometry at RHIC. Chinese Physics C, 2009, 33(S1): 52-54. doi: 10.1088/1674-1137/33/S1/017
[9]	DUAN Chun-Gui , LIU Na . Influence of quark energy loss on extracting nuclear sea quark distribution from nuclear Drell-Yan experimental data. Chinese Physics C, 2009, 33(6): 411-414. doi: 10.1088/1674-1137/33/6/002
[10]	YE Wei , WU Feng . Influence of angular momentum on evaporation residue cross section as a probe of nuclear dissipation. Chinese Physics C, 2008, 32(6): 433-436. doi: 10.1088/1674-1137/32/6/004
[11]	MA YuGang , SU QianMin , SHEN WenQing , WANG JianSong , FANG DeQing , CAI XiangZhou , ZHANG HuYong . Role of Excitation Energy in Nuclear Dissociation. Chinese Physics C, 2000, 24(6): 528-534.
[12]	Wei Zhiyong , Zhu Yongtai . Influence of IMF Internal Excitation on the Extraction of the Isotope Nuclear Temperature. Chinese Physics C, 1997, 21(S3): 57-62.
[13]	Wu Heyu , Dai Guangxi . Test of Sequential Decay of Hot Nuclei Around 3 MeV/u Excitation Energy. Chinese Physics C, 1995, 19(S1): 13-20.
[14]	EMU01 Collaboration . Relative Information Entropy of Particle Production in High-Energy Induced Nuclear Reactions. Chinese Physics C, 1994, 18(Z1): 61-68.
[15]	Liu Lianggang , Ma Weixing , Jiang Huanqing . Particle-Hole and Delta-Hole Excitation in Nuclear Mater. Chinese Physics C, 1994, 18(S4): 391-398.
[16]	Zuo Wei , Ge Lingxiao , Zhang Fengshou . Dynamics of Heavy Ion Collisions in the Fermi Domain (III) Multifragmentation and Limiting Excitation Energy. Chinese Physics C, 1993, 17(S3): 277-283.
[17]	Huo Yukun , Zhang Baohui , Yuan Zhushu . Nuclear Excitation by Electron Transition and γ-Ray Laser. Chinese Physics C, 1992, 16(S3): 321-328.
[18]	Liu Yuxin , Long Guilin , Sun Hongzhou . The Staggering Phenomenon in the Nuclear Energy Spectrum and the Quadruple Interaction. Chinese Physics C, 1991, 15(S2): 189-195.
[19]	Li Zhuxia , Shi Yijing , Wu Xizhen , Wang Zhongqi , Zhuo Yizhong . Quantum Effect and One-Body Dissipation. Chinese Physics C, 1990, 14(S3): 291-299.
[20]	Cao Zhijun , Shen Jianping , Li Guanglie . The Role of Nucleon-Nucleon Short-Range Correlations in the Nuclear Structure Function in the x > 1 Region. Chinese Physics C, 1989, 13(S3): 281-288.

Access

Get Citation

YE Wei. Surveying the role of excitation energy in probing nuclear dissipation[J]. Chinese Physics C, 2009, 33(7): 528-531. doi: 10.1088/1674-1137/33/7/005

YE Wei. Surveying the role of excitation energy in probing nuclear dissipation[J]. Chinese Physics C, 2009, 33(7): 528-531. doi: 10.1088/1674-1137/33/7/005 shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2008-10-13
Revised: 2008-11-04

Article Metric

Article Views(3973)
PDF Downloads(591)
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

Surveying the role of excitation energy in probing nuclear dissipation

Corresponding author: YE Wei,

Department of Physics, Southeast University, Nanjing 210096, China

Received Date: 2008-10-13

Accepted Date: 2008-11-04

Available Online: 2009-07-05

Abstract:

A dynamical Langevin model is employed to calculate the excess of the evaporation residue cross sections of the ¹⁹⁴Pb nucleus over that
predicted by the standard statistical model as a function of nuclear dissipation strength. It is shown that large excitation energy can increase the effects of nuclear dissipation on the excess of the evaporation residues and the sensitivity of this excess to the dissipation strength, and that more higher excitation energies have little contribution to further raising this sensitivity. These results suggest that on the experimental side, producing those compound systems with moderate excitation energy is sufficient for a good determination of the pre-saddle nuclear dissipation strength by measuring the evaporation residue cross
section, and that forming an extremely highly excited system does not considerably improve the sensitivity of evaporation residues to the dissipation strength.

HTML

Reference (1)

Surveying the role of excitation energy in probing nuclear dissipation

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article