Fluctuation and Emission of Intermediate Mass Fragments inHeavy Ion Collisions at Medium Energy

Zhang Xiaodong; Ge Lingxiao

近期发现有不法分子冒充我刊与作者联系，借此进行欺诈等不法行为，请广大作者加以鉴别，如遇诈骗行为，请第一时间与我刊编辑部联系确认（《中国物理C》（英文）编辑部电话：010-88235947,010-88236950），并作报警处理。

本刊再次郑重声明：

（1）本刊官方网址为cpc.ihep.ac.cn和https://iopscience.iop.org/journal/1674-1137

（2）本刊采编系统作者中心是投稿的唯一路径，该系统为ScholarOne远程稿件采编系统，仅在本刊投稿网网址（https://mc03.manuscriptcentral.com/cpc）设有登录入口。本刊不接受其他方式的投稿，如打印稿投稿、E-mail信箱投稿等，若以此种方式接收投稿均为假冒。

（3）所有投稿均需经过严格的同行评议、编辑加工后方可发表，本刊不存在所谓的“编辑部内部征稿”。如果有人以“编辑部内部人员”名义帮助作者发稿，并收取发表费用，均为假冒。

《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 1995, Vol. 19> Issue(10) : 945-951

Fluctuation and Emission of Intermediate Mass Fragments inHeavy Ion Collisions at Medium Energy

Zhang Xiaodong ^, ,
Ge Lingxiao

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000

Abstract
HTML
Reference
Related

PDF

Abstract：
Based on the quantum molecular dynamics model, the time and energy evolutions of intermediate mass fragments (IMF)and its dynamical origin are systematically studied for ⁴⁰Ca+⁴⁰Ca central collision.The transition of reaction mechanism, the relation between the density fluctuation and IMF and the time scale of IMF emission are discussed in detail.The relative density fluctuation attains to maximum at energy region of 50-80MeV/u corresponding to an obvious increase of IMF. The possible occurrence of total disassembly at incident energy of about 65MeV/u for the studied reactions is predicted.Meanwhile, a saturation value (140fm/c) for time scale of multifragmentation is obtained.

References

[1]

J.Aichelin,Phys.Rep.,202（1991）233.[2] 朱全伶、葛凌霄、李祝霞，高能物理与核物理，16（1992）658.[3] 朱全伶、葛凌霄、张晓东，高能物理与核物理，18（1994）850.[4] U.Lynn,P.Kreutz,J.C.Adloff et al.,Nucl.Phys.,A545（1992）329c.[5] A.Milkau et al,GSI Preprint,GSI 91008,1991.[6] M.B.Tsang,Proceeding of the XXXII Int.Winter Meetingson Nucl.Phys.,ed by IORI（Ricerca Scientificed Educazion Permanente）1994,p512.[7] Ge Lingxiao,Zeng Xianhua,Zuo wei,Phys.Rev.,C50（1994）2129.[8] E.Bauge,A.Elmani,A.Lacey et al.,Phys.Rev.Lett.,70（1993）3705.[9] G.Peilert et al.,Phys.Rev.,C39（1989）1402.

[1]	S.Manly⁸ , B.Alver⁴ , B.B.Back¹ , M.D.Baker² , M.Ballintijn⁴ , D.S.Barton² , R.R.Betts⁶ , R.Bindel⁷ , W.Busza⁴ , Z.Chai² , V.Chetluru⁶ , E.Garcia⁶ , T.Gburek³ . Eccentricities of Flow-Elliptic Flow Fluctuations and Evidence for Transverse Localization in the Initial State of the Matter in Relativistic Heavy Ion Collisions. Chinese Physics C, 2007, 31(12): 1133-1136.
[2]	WANG Gang , Declan Keane , Aihong Tang , Sergei A . A Method for Measuring Event-by-Event Elliptic Flow Fluctuations with the First-Order Event Plane in Heavy-Ion Collisions. Chinese Physics C, 2007, 31(12): 1165-1169.
[3]	LI Zhu-Xia , ZHANG Ying-Xun , LI Qing-Feng , ZHAO Kai , WU Xi-Zhen . Isospin Effect in Intermediate Energy Heavy Ion Collisions. Chinese Physics C, 2004, 28(12): 1343-1348.
[4]	GUO Wen-Jun , LIU Jian-Ye , ZUO Wei , XING Yong-Zhong , LI Xi-Guo , LI Zeng-Hua . Isospin Effect of Neutron (Proton) Emission Number in Intermediate Energy Heavy Ion Collisions. Chinese Physics C, 2002, 26(12): 1264-1270.
[5]	ZHAO Qiang , GUO Wen-Jun , LIU Jian-Ye , ZUO Wei , WANG Shun-Jin . Isospin Dependence of Preequilibrium Nucleon Emission in Intermediate Energy Heavy Ion Collision. Chinese Physics C, 2001, 25(3): 244-250.
[6]	ZHANG FengShou , CHEN LieWen , MING ZhaoYu , ZHU ZhiYuan . Determination of Impact Parameter at Intermediate Energy Heavy Ion Collision. Chinese Physics C, 2000, 24(4): 320-325.
[7]	Li Zuyu , Wang Hongwei , He Zhiyong , Duan Limin , Zhang Baoguo , Dai Guangxi , Fu Yanbiao , Jin Genming , Wu Heyu . Origins of Intermediate Mass Fragments for ⁴⁰Ar+^natAg Reaction at 30 MeV/u. Chinese Physics C, 1999, 23(8): 753-759.
[8]	Li Zuyu , Wang Hongwei , He Zhiyong , Dun Limin , Zhang Baoguo , Dai Guangxi , Fu Yanbiao , Jin Genming . Time Scsle for Emission of Intermediate Mass Fragments in E/A=30MeV ⁴⁰Ar+^natAg Reaction. Chinese Physics C, 1998, 22(8): 684-689.
[9]	He Zhiyong , Li Zuyu , Duan Limin , Zhang Baoguo , Jin Genming , Dai guangxi , Wang Hongwei , Fu Yanbiao . Space-Time Evolution During Emission of Intermediate Mass Fragmentform ⁴⁰Ar+¹⁵⁹Tb Reaction at 30 MeV/u. Chinese Physics C, 1998, 22(8): 678-683.
[10]	Zeng Xianghua , Ge Lingxiao . Thermalization,Expansion and Radial Flow in HIC. Chinese Physics C, 1997, 21(2): 157-161.
[11]	Liu Jianye , Zhang Shaoguang . Dynamical Study on Processes of Intermediate-Energy Heavy Ion Collisions. Chinese Physics C, 1995, 19(1): 53-58.
[12]	Zhu Quanling , Ge Lingxiao , Zhang Xiaodong . Isospin Effects on Dynamics of Heavy Ion Collisions. Chinese Physics C, 1994, 18(9): 853-857.
[13]	Zhang Shaoguang , Liu Jianye . Multifragmentation in Heavy Ion Collisions. Chinese Physics C, 1994, 18(S1): 64-70.
[14]	HO Yu-Kun , YUAN Zhu-Shu , PAN Zheng-Ying . Shuttle Acceleration Mechanism of Nucleons in hi Reactions. Chinese Physics C, 1992, 16(3): 285-288.
[15]	LIU Jian-Ye , LI Jun-Qing , QIAO Wei-Min , CHEN Pei-Jun , SHEN Wen-Qing , TAN Nan-Hong . THE SHELL EFFECTS IN HEAVY ION COLLISIONS FOR LOW BOBARDMENT ENERGIES. Chinese Physics C, 1988, 12(6): 840-847.
[16]	WU Guo-Hua , GE Ling-Xiao . EMISSION OF LIGHT PARTICLES IN HEAVY ION COLLISIONS. Chinese Physics C, 1988, 12(4): 541-547.
[17]	LI Jun-Qing , ZHU Jie-Ding , LIU Jan-Ye , ZHU Yong-Tai . MASS DRIFT FLUCTUATION AND THE SHELL EFFECT IN HEAVY ION COLLISIONS. Chinese Physics C, 1988, 12(1): 109-115.
[18]	CAI Xu , ZHOU Zhuo-Wei . TWO TEMPERATURES EMISSION OF RELATIVISTIC α-PARTICLES IN HIGH-ENERGY HEAVY-ION COLLISIONS. Chinese Physics C, 1987, 11(1): 51-56.
[19]	GE Ling-Xiao , SHEN Wen-Qing , LIU Jian-Ye , WU Guo-Hua . MASS DRIFT IN HEAVY ION REACTION. Chinese Physics C, 1987, 11(5): 674-681.
[20]	WANG RU-LIN , MA WEI-XING . INVESTIGATION ON MULTIPLE SCATTERING MECHANISM IN HEAVY-IONS COLLISIONS. Chinese Physics C, 1981, 5(2): 192-196.

Access

Get Citation

Zhang Xiaodong and Ge Lingxiao. Fluctuation and Emission of Intermediate Mass Fragments inHeavy Ion Collisions at Medium Energy[J]. Chinese Physics C, 1995, 19(10): 945-951.

Zhang Xiaodong and Ge Lingxiao. Fluctuation and Emission of Intermediate Mass Fragments inHeavy Ion Collisions at Medium Energy[J]. Chinese Physics C, 1995, 19(10): 945-951. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1900-01-01
Revised: 1900-01-01

Article Metric

Article Views(2913)
PDF Downloads(505)
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

Fluctuation and Emission of Intermediate Mass Fragments inHeavy Ion Collisions at Medium Energy

Zhang Xiaodong ^,
Ge Lingxiao

Corresponding author: Zhang Xiaodong,

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1995-10-05

Abstract: Based on the quantum molecular dynamics model, the time and energy evolutions of intermediate mass fragments (IMF)and its dynamical origin are systematically studied for ⁴⁰Ca+⁴⁰Ca central collision.The transition of reaction mechanism, the relation between the density fluctuation and IMF and the time scale of IMF emission are discussed in detail.The relative density fluctuation attains to maximum at energy region of 50-80MeV/u corresponding to an obvious increase of IMF. The possible occurrence of total disassembly at incident energy of about 65MeV/u for the studied reactions is predicted.Meanwhile, a saturation value (140fm/c) for time scale of multifragmentation is obtained.