Density effect of the neutron halo nucleus induced reactions in intermediate energy heavy ion collisions

CAO Xi-Guang; CHEN Jin-Gen; MA Yu-Gang; FANG De-Qing; TIAN Wen-Dong; YAN Ting-Zhi; CAI Xiang-Zhou

doi:10.1088/1674-1137/33/S1/016

Chinese Physics C> 2009, Vol. 33> Issue(S1) : 49-51 DOI: 10.1088/1674-1137/33/S1/016

Density effect of the neutron halo nucleus induced reactions in intermediate energy heavy ion collisions

Abstract
HTML
Reference
Related

PDF

Abstract：
Using an isospin-dependent quantum molecular dynamics (IQMD) model, we study the ¹⁵C induced reactions from 30—120 MeV/nucleon systematically. Here the valence neutron of ¹⁵C is assigned at both 1d 5/2 and 2s 1/2 states respectively in order to study the density effect of reaction mechanism. It is believed that the existent neutron halo structure at the 2s 1/2 state of ¹⁵C will affect the light particle emission evidently. In our calculation, the different density distributions of ¹⁵C at two states are calculated by relativistic mean field (RMF) model and introduced in the initiation of IQMD model, respectively. It is found that some observables such as emission fragmentation multiplicity, emission neutron/proton ratio and emission neutrons' kinetic energy spectrum are sensitive to the initial density distribution.

References

[1]

. Tanihata I et al. Phys. Lett. B, 1985, 160: 380; TanihataI et al. Phys. Rev. Lett., 1985, 55: 2676; Tanihata I et al.Phys. Lett. B, 1988, 206: 592; Tanihata I et al. Nucl. Phys.A, 1991, 522: 2752. Ogawa Y et al. Nucl. Phys. A, 1992, 543: 7223. MA Y G, SHEN W Q et al. Phys. Rev. C, 1993, 48: 850;MA Y G, SHEN W Q et al. Phys. Lett. B, 1993, 302: 3864. REN Z Z et al. Phys. Lett. B, 1990, 252: 311; REN Z Z etal. Phys. Lett. B, 1995, 351: 115. MENG J, RING P. Phys. Rev. Lett., 1998, 80: 4606. GUO W J et al. Commun. Theor. Phys., 2003 40: 5777. FANG De-Qing, SHENWen-Qing et al. Phys. Rev. C, 2000,61: 064311; FANG De-Qing, SHEN Wen-Qing et al. Chin.Phys. Lett., 2000, 17: 655; FANG D Q, Yamaguchi T et al. Phys. Rev. C, 2004, 69: 0346138. LIU Jian-Ye, GUO Wen-Jun et al. Phys. Rev. Lett., 200186: 975; LIU Jian-Ye, GUO Wen-Jun et al. Acta Phys.Sin., 2006 55: 1068 (in Chinese); LIU Jian-Ye, GUO Wen-Jun et al. HEP NP, 2006, 30: 317 (in Chinese)9. LIU Jian-Ye, GUO Wen-Jun et al. Phys. Lett. B, 2005,617: 2410. Aichelin J et al. Phys. Rev. Lett., 1987, 58: 192611. Aichelin J. Phys. Rep., 1991, 202: 23312. MA Y G, SHEN W Q. Phys. Rev. C, 1995, 51: 71013. LIU Y J, YANG Y F, ZUO W et al. Phys. Rev. C, 2001,63: 05461214. WEI Y B, MA Y G, SHEN W Q et al. Phys. Lett. B, 2004,586: 225; WEI Y B, MA Y G, SHEN W Q et al. J. Phys.G, 2004, 30: 201915. MA Y G, ZHANG H Y, SHEN W Q. Prog. Phys., 2002,22: 99 (in Chinese)16. MA Y G, WEI Y B, SHEN W Q et al. Phys. Rev. C, 2006,73: 014604

[1]	Ya-Fei Guo , Peng-Hui Chen , Fei Niu , Zhao-Qing Feng . Isospin effect in peripheral heavy-ion collisions at Fermi energies. Chinese Physics C, 2018, 42(12): 124106. doi: 10.1088/1674-1137/42/12/124106
[2]	Feng-Lan Shao , Jun Song , Rui-Qin Wang , Mao-Sheng Zhang . Energy dependence of resonance production in relativistic heavy ion collisions. Chinese Physics C, 2017, 41(1): 014101. doi: 10.1088/1674-1137/41/1/014101
[3]	Su-Ya-La-Tu Zhang , Mei-Rong Huang , R. Wada , Xing-Quan Liu , Wei-Ping Lin , Jian-Song Wang . Symmetry energy and experimentally observed cold fragments in intermediate heavy-ion collisions. Chinese Physics C, 2017, 41(4): 044001. doi: 10.1088/1674-1137/41/4/044001
[4]	Xiao-Ji Zhang , Wen-Jun Guo , Xian-Jie Li , Kuo Wang . Study of entropy in intermediate-energy heavy ion collisions. Chinese Physics C, 2016, 40(3): 034103. doi: 10.1088/1674-1137/40/3/034103
[5]	YAN Ting-Zhi , LI Shan . Impact parameter dependence of the scaling of anisotropic flowsin intermediate energy heavy-ion collisions. Chinese Physics C, 2014, 38(8): 084104. doi: 10.1088/1674-1137/38/8/084104
[6]	YAN Ting-Zhi . Energy dependence for directed and elliptic flow in in termediate-energy heavy ion collisions. Chinese Physics C, 2013, 37(1): 014105. doi: 10.1088/1674-1137/37/1/014105
[7]	MA Chun-Wang , SONG Heng-Li , PU Jie , ZHANG Tong-Lin , ZHANG Sha , WANG Shan-Shan , ZHAO Xin-Li , CHEN Li . Symmetry energy from neutron-rich fragments in heavy-ion collisions, and its dependence on incident energy, and impact parameters. Chinese Physics C, 2013, 37(2): 024102. doi: 10.1088/1674-1137/37/2/024102
[8]	CHEN Shuang , CHU Yan-Yun , REN Zhong-Zhou . Density-dependent potential for multi-neutron halo nuclei. Chinese Physics C, 2009, 33(8): 639-644. doi: 10.1088/1674-1137/33/8/008
[9]	LIU Gui-Hua , MA Yu-Gang , CAI Xiang-Zhou , FANG De-Qing , SHEN Wen-Qing , TIAN Wen-Dong , WANG Kun . Impact parameter and beam energy dependence for azimuthal asymmetry of direct photons and free protons in intermediate energy heavy-ion collisions. Chinese Physics C, 2009, 33(S1): 89-91. doi: 10.1088/1674-1137/33/S1/029
[10]	GUO Wen-Jun , LIU Jian-Ye . Isospin effects of the Skyrme potential and the momentum dependent interaction at intermediate energy heavy ion collisions. Chinese Physics C, 2008, 32(3): 172-176. doi: 10.1088/1674-1137/32/3/002
[11]	Chen Liewen , Ge Lingxiao , Zhang Fengshou . “Neck” Formation and Fragmentation in Intermediate Energy Heavy-ion Collisions. Chinese Physics C, 1997, 21(S4): 73-78.
[12]	Qi Zhong , Guo Zhongyan , Zhan Wenlong , Zhou Jianqun , Liu Guanhua , Zhang Wansheng , Wang Jinchuan , Lin Yuangen , Zhu Yongtai , Xu Hushan , Xie Yuanxiang . NE102A+ CsI(Tl) + PMT Detector Telescope for Intermediate Energy Heavy Ion Reactions. Chinese Physics C, 1997, 21(S2): 33-38.
[13]	Li Junqing , Yuan Xiuqing , Liu Jianye , Zhu Jieding . Behavior of an Individual Nucleon in Intermediate Energy Heavy Ion Reactions. Chinese Physics C, 1996, 20(S4): 363-371.
[14]	Liu Jianye , Zhang Shaoguang . Dynamics Study on the Intermediate Energy Heavy Ion Collisions. Chinese Physics C, 1995, 19(S1): 103-109.
[15]	Liu Bo , Jiang Huanqing . The K⁺/π⁺ Ratio in High-Energy Nucleus Collisions and the Effect of Secondary Collisions. Chinese Physics C, 1993, 17(S4): 403-409.
[16]	Soren P. Sorensen , Zhao Weiqin . Influence of Finite Collision Time on Energy Density in Relativistic Heavy Ion Collisions. Chinese Physics C, 1993, 17(S1): 89-93.
[17]	Wang Bing , Zeng Yaowu , Shen Wenqing , Zhan Wenlong , Zhou Jianqun , Feng Enpu , Zhu Yongtai , Feng Jun . Light-Particle Multidetector for the Intermediate Energy Heavy-Ion Reaction. Chinese Physics C, 1991, 15(S1): 79-84.
[18]	Zhuang Pengfei , Liu Lianshou . Estimation of the Maximum Energy Density in High Energy Heavy Ion Collisions and the Space-time Region for the Formation of Quark Matter. Chinese Physics C, 1991, 15(S3): 297-305.
[19]	Liu Yiming , Huo Lei , Jiang Yuzhen , Wang Shan , D. Keane , S. Y. Fung , S. Y. Chu . Source Density Distribution and Intensity Interferometry in High-energy Heavy-ion Collisions. Chinese Physics C, 1991, 15(S1): 33-41.
[20]	Li Junqing , Liu Janye , Zhu Yongtai , Zhu Jieding . The Mass Drift Fluctuation and the Shell Effect in Heavy Ion Collisions. Chinese Physics C, 1988, 12(S2): 189-198.

Access

Get Citation

CAO Xi-Guang, CHEN Jin-Gen, MA Yu-Gang, FANG De-Qing, TIAN Wen-Dong, YAN Ting-Zhi and CAI Xiang-Zhou. Density effect of the neutron halo nucleus induced reactions in intermediate energy heavy ion collisions[J]. Chinese Physics C, 2009, 33(S1): 49-51. doi: 10.1088/1674-1137/33/S1/016

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2008-10-22
Revised: 1900-01-01

Article Metric

Article Views(4061)
PDF Downloads(659)
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

Density effect of the neutron halo nucleus induced reactions in intermediate energy heavy ion collisions

Corresponding author: CAO Xi-Guang,

Received Date: 2008-10-22

Accepted Date: 1900-01-01

Available Online: 2009-01-10

Abstract: Using an isospin-dependent quantum molecular dynamics (IQMD) model, we study the ¹⁵C induced reactions from 30—120 MeV/nucleon systematically. Here the valence neutron of ¹⁵C is assigned at both 1d 5/2 and 2s 1/2 states respectively in order to study the density effect of reaction mechanism. It is believed that the existent neutron halo structure at the 2s 1/2 state of ¹⁵C will affect the light particle emission evidently. In our calculation, the different density distributions of ¹⁵C at two states are calculated by relativistic mean field (RMF) model and introduced in the initiation of IQMD model, respectively. It is found that some observables such as emission fragmentation multiplicity, emission neutron/proton ratio and emission neutrons' kinetic energy spectrum are sensitive to the initial density distribution.

HTML

Reference (1)

Density effect of the neutron halo nucleus induced reactions in intermediate energy heavy ion collisions

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article