Elliptic flow splitting between protons and antiprotons from hadronic potentials
文献类型：期刊论文
| 作者 | Li, Pengcheng2,3; Wang, Yongjia3; Steinheimer, Jan1; Li, Qingfeng3,4; Zhang, Hongfei2 |
| 刊名 | MODERN PHYSICS LETTERS A
 |
| 出版日期 | 2020-11-20 |
| 卷号 | 35期号:35页码:14 |
| 关键词 | Heavy ion collisions elliptic flow mean field potential |
| ISSN号 | 0217-7323 |
| DOI | 10.1142/S0217732320502892 |
| 通讯作者 | Li, Qingfeng(liqf@zjhu.edu.cn) |
| 英文摘要 | The difference in elliptic flow between protons and antiprotons, produced in Au-197 +Au-197 collisions at center-of-mass energies root s(NN) = 5-12GeV, is studied within a modified version of the ultra-relativistic quantum molecular dynamics (UrQMD) model. Two different model scenarios are compared: the cascade mode and the mean field mode which includes potential interactions for both formed and pre-formed hadrons. The model results for the elliptic flow of protons and the relative elliptic flow difference between protons and antiprotons obtained from the mean field mode agree with the available experimental data, while the elliptic flow difference is near zero for the cascade mode. Our results show that the elliptic flow splitting, observed for particles and antiparticles, can be explained by the inclusion of proper hadronic interactions. In addition, the difference in elliptic flow between protons and antiprotons depends on the centrality and the rapidity window. With smaller centrality and/or rapidity acceptance, the observed elliptic flow splitting is more sensitive to the beam energy, indicating a strong net baryon density dependence of the effect. We propose to confirm this splitting at the upcoming experiments from Beam Energy Scan (BES) Phase-II at Relativistic Heavy Ion Collider (RHIC), the Compressed Baryonic Matter (CBM) at Facility for Antiproton and Ion Research (FAIR), High Intensity heavy ion Accelerator Facility (HIAF) and Nuclotron-based Ion Collider fAcility (NICA). |
| WOS关键词 | QUANTUM MOLECULAR-DYNAMICS ; NUCLEAR-EQUATION ; COLLISIONS ; STATE ; DENSITY |
| 资助项目 | National Natural Science Foundation of China[11875125] ; National Natural Science Foundation of China[11947410] ; National Natural Science Foundation of China[11675066] ; Zhejiang Provincial Natural Science Foundation of China[LY19A050001] ; Zhejiang Provincial Natural Science Foundation of China[LY18A050002] ; Ten Thousand Talent Program of Zhejiang province ; Samson AG ; Walter Greiner Gesellschaft zur Forderung der physikalischen Grundlagenforschung e.V. |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000599872300006 |
| 出版者 | WORLD SCIENTIFIC PUBL CO PTE LTD |
| 资助机构 | National Natural Science Foundation of China ; Zhejiang Provincial Natural Science Foundation of China ; Ten Thousand Talent Program of Zhejiang province ; Samson AG ; Walter Greiner Gesellschaft zur Forderung der physikalischen Grundlagenforschung e.V. |
| 源URL | [http://119.78.100.186/handle/113462/138465]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Li, Qingfeng |
| 作者单位 | 1.Frankfurt Inst Adv Studies, Ruth Moufang Str 1, D-60438 Frankfurt, Germany 2.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China 3.Huzhou Univ, Sch Sci, Huzhou 313000, Peoples R China 4.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Pengcheng,Wang, Yongjia,Steinheimer, Jan,et al. Elliptic flow splitting between protons and antiprotons from hadronic potentials[J]. MODERN PHYSICS LETTERS A,2020,35(35):14. |
| APA | Li, Pengcheng,Wang, Yongjia,Steinheimer, Jan,Li, Qingfeng,&Zhang, Hongfei.(2020).Elliptic flow splitting between protons and antiprotons from hadronic potentials.MODERN PHYSICS LETTERS A,35(35),14. |
| MLA | Li, Pengcheng,et al."Elliptic flow splitting between protons and antiprotons from hadronic potentials".MODERN PHYSICS LETTERS A 35.35(2020):14. |
入库方式： OAI收割
来源：近代物理研究所
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