(Lambda)over-bar production and (Lambda)over-bar/(p)over-bar ratio in relativistic heavy ion collisions
文献类型：期刊论文
| 作者 | Lu, ZD; Sa, BH |
| 刊名 | HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
 |
| 出版日期 | 2000-08-01 |
| 卷号 | 24页码:743-747 |
| 关键词 | relativistic heavy ion collision string-hadron fragmentation model (Lambda)over-bar multiplicity (Lambda)over-bar/(p)over-bar ratio |
| ISSN号 | 0254-3052 |
| 英文摘要 | The <(Lambda)over bar> multiplicity and <(Lambda)over bar>/(p) over bar ratio are studied by hadron transportation-string fragmentation model in relativistic heavy ion collisions. Firstly, the dependence of <(Lambda)over bar> multiplicity and <(Lambda)over bar>/(p) over bar ratio on the system size and the collision centrality is studied. It shows that the <(Lambda)over bar> and (p) over bar multiplicities go up as the increase of system size and the increase of collision centrality. However, their ratio keeps almost a constant. The effect of <(Lambda)over bar> annihilation cross section to <(Lambda)over bar> multiplicity and <(Lambda)over bar>/(p) over bar ratio is also studied. It is found that this effect is weak: <(Lambda)over bar> multiplicity and <(Lambda)over bar>/(p) over bar ratio have a little amount of increase by the decrease of <(Lambda)over bar> annihilation cross section. Even the cross section is down to zero, <(Lambda)over bar>/(p) over bar ratio is only 1.2 in 200A GeV AuAu head on collision. The <(Lambda)over bar>/(p) over bar ratio is obtained to be 0.28 in pp collision, lying in the range of experimental data: 0.2-0.3. It is also obtained that the ratio in AA collisions is 3-5 times of that in pp collision. |
| WOS关键词 | RESCATTERING ; MODEL |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000088798700008 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://119.78.100.186/handle/113462/36774]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Lu, ZD |
| 作者单位 | 1.China Ctr Adv Sci & Technol, Beijing 100080, Peoples R China 2.Inst Atom Energy, Beijing 102413, Peoples R China 3.Ctr Theoret Nucl Phys, Natl Lab Heavy Ion Accelerator Lanzhou, Lanzhou 730000, Peoples R China 4.Hiroshima Univ, Fac Integrated Arts & Sci, Hiroshima 730, Japan 5.Hiroshima Univ, Fac Sci, Hiroshima 730, Japan |
| 推荐引用方式 GB/T 7714 | Lu, ZD,Sa, BH. (Lambda)over-bar production and (Lambda)over-bar/(p)over-bar ratio in relativistic heavy ion collisions[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2000,24:743-747. |
| APA | Lu, ZD,&Sa, BH.(2000).(Lambda)over-bar production and (Lambda)over-bar/(p)over-bar ratio in relativistic heavy ion collisions.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,24,743-747. |
| MLA | Lu, ZD,et al."(Lambda)over-bar production and (Lambda)over-bar/(p)over-bar ratio in relativistic heavy ion collisions".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 24(2000):743-747. |
入库方式： OAI收割
来源：近代物理研究所
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