Disappearance of flow and the in-medium nucleon-nucleon cross section for Zn-64+Al-27 collisions at intermediate energies
文献类型：期刊论文
| 作者 | He, ZY; Angelique, JC; Auger, A; Bizard, G; Brou, R; Buta, A; Cabot, C; Crema, E; Cussol, D; Dai, GX |
| 刊名 | NUCLEAR PHYSICS A
 |
| 出版日期 | 1996-02-26 |
| 卷号 | 598页码:248-262 |
| ISSN号 | 0375-9474 |
| 英文摘要 | Light charged particles emitted from the reactions Zn-64+Al-27 at beam energies 49, 57, 69 and 79 MeV/u have been measured with a 4 pi multidetector array. The collective transverse momentum in the reaction plane (in-plane flow) is observed to vary strongly with the impact parameter and the emitted fragments. The flow parameter decreases monotonically from 49 to 79 MeV/u and falls to zero at a beam energy about 79 MeV/u in central collisions. This energy of vanishing flow increases with impact parameter and may be the same for different fragments. The disappearance of flow is also studied with the Boltzmann-Uehling-Uhlenbeck equation and it is demonstrated that the flow parameter and E(VF) are very sensitive to the in-medium cross section sigma(NN) and weakly sensitive to the nuclear compressibility in central collisions. Comparisons with experimental data indicate that sigma(NN) is around 35 to 45 mb in central collisions. |
| WOS关键词 | HEAVY-ION COLLISIONS ; REACTION PLANE DETERMINATION ; COLLECTIVE MOTION ; MEAN FIELD ; DISTRIBUTIONS ; DEFLECTION ; MATTER ; MEV/U ; MASS |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:A1996UA66100005 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://119.78.100.186/handle/113462/56536]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | He, ZY |
| 作者单位 | 1.UNIV CAEN,IN2P3,CNRS,F-14050 CAEN,FRANCE 2.ACAD SINICA,INST MODERN PHYS,LANZHOU 730000,PEOPLES R CHINA 3.GANIL,F-14021 CAEN,FRANCE 4.UNIV CATHOLIQUE LOUVAIN,INST PHYS NUCL,B-1348 LOUVAIN,BELGIUM 5.SUBATECH,F-44072 NANTES,FRANCE 6.TEXAS A&M UNIV,INST CYCLOTRON,COLLEGE STN,TX 77843 7.ACAD SINICA,INST NUCL RES,SHANGHAI 201800,PEOPLES R CHINA 8.UNIV NAPLES,DIPARTIMENTO SCI FIS,I-80125 NAPLES,ITALY |
| 推荐引用方式 GB/T 7714 | He, ZY,Angelique, JC,Auger, A,et al. Disappearance of flow and the in-medium nucleon-nucleon cross section for Zn-64+Al-27 collisions at intermediate energies[J]. NUCLEAR PHYSICS A,1996,598:248-262. |
| APA | He, ZY.,Angelique, JC.,Auger, A.,Bizard, G.,Brou, R.,...&Zhang, FS.(1996).Disappearance of flow and the in-medium nucleon-nucleon cross section for Zn-64+Al-27 collisions at intermediate energies.NUCLEAR PHYSICS A,598,248-262. |
| MLA | He, ZY,et al."Disappearance of flow and the in-medium nucleon-nucleon cross section for Zn-64+Al-27 collisions at intermediate energies".NUCLEAR PHYSICS A 598(1996):248-262. |
入库方式： OAI收割
来源：近代物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。