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Nuclear interactions and net-proton number fluctuations in heavy ion collisions at the SIS18 accelerator

文献类型：期刊论文

作者Steinheimer, Jan1; Wang, Yongjia2; Mukherjee, Ayon1,6; Ye, Yunxiao2,3; Guo, Chenchen4; Li, Qingfeng2,5; Stoecker, Horst1,6,7
刊名PHYSICS LETTERS B
出版日期2018-10-10
卷号785页码:40-45
关键词Proton number fluctuations Nuclear interactions
ISSN号0370-2693
DOI10.1016/j.physletb.2018.07.068
英文摘要The effect of nuclear interactions on measurable net-proton number fluctuations in heavy ion collisions at the SIS18/GSI accelerator is investigated. The state of the art UrQMD model including interaction potentials is employed. It is found that the nuclear forces enhance the baryon number cumulants, as predicted from grand canonical thermodynamical models. The effect however is smeared out for proton number fluctuations due to iso-spin randomization and global baryon number conservation, which decreases the cumulant ratios. For a rapidity acceptance window larger than Delta y > 0.4 the effects of global baryon number conservation dominate and all cumulant ratios are significantly smaller than 1. (C) 2018 The Author(s). Published by Elsevier B.V.
WOS关键词MOLECULAR-DYNAMICS ; EQUATION ; ENERGY ; STATE ; RATIO
资助项目Zhejiang Provincial Natural Science Foundation of China[LY18A050002]
WOS研究方向Astronomy & Astrophysics ; Physics
语种英语
WOS记录号WOS:000447424000005
出版者ELSEVIER SCIENCE BV
源URL[http://119.78.100.186/handle/113462/64457]  
专题中国科学院近代物理研究所
通讯作者Steinheimer, Jan
作者单位1.Frankfurt Inst Adv Studies, Ruth Moufang Str 1, D-60438 Frankfurt, Germany
2.Huzhou Univ, Sch Sci, Huzhou 313000, Peoples R China
3.Zhejiang Univ, Dept Phys, Hangzhou 310027, Zhejiang, Peoples R China
4.Sun Yat Sen Univ, Sinofrench Inst Nucl Engn & Technol, Zhuhai 519082, Peoples R China
5.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China
6.Goethe Univ Frankfurt, Inst Theoret Phys, Max von Laue Str 1, D-60438 Frankfurt, Germany
7.GSI Helmholtzzentrum Schwerionenforsch GmbH, D-64291 Darmstadt, Germany
推荐引用方式
GB/T 7714		 Steinheimer, Jan,Wang, Yongjia,Mukherjee, Ayon,et al. Nuclear interactions and net-proton number fluctuations in heavy ion collisions at the SIS18 accelerator[J]. PHYSICS LETTERS B,2018,785:40-45.
APA Steinheimer, Jan.,Wang, Yongjia.,Mukherjee, Ayon.,Ye, Yunxiao.,Guo, Chenchen.,...&Stoecker, Horst.(2018).Nuclear interactions and net-proton number fluctuations in heavy ion collisions at the SIS18 accelerator.PHYSICS LETTERS B,785,40-45.
MLA Steinheimer, Jan,et al."Nuclear interactions and net-proton number fluctuations in heavy ion collisions at the SIS18 accelerator".PHYSICS LETTERS B 785(2018):40-45.

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来源：近代物理研究所

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