Search for scalar quarks in e(+)e(-) collisions at root s up to 209 GeV
文献类型：期刊论文
| 作者 | ALEPH Collaboration |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2002 |
| 卷号 | 537期号:1--2页码:5-20 |
| 关键词 | ROOT-S=189 GEV BOTTOM QUARKS MONTE-CARLO SUPERSYMMETRIC PARTICLES LIGHTEST NEUTRALINO STANDARD MODEL TOP-QUARK LEP SQUARKS PHYSICS |
| 通讯作者 | Heister, A (reprint author), Rhein Westfal TH Aachen, Inst Phys, D-52056 Aachen, Germany. |
| 英文摘要 | Searches for scalar top, scalar bottom and mass-degenerate scalar quarks are performed in the data collected by the ALEPH detector at LEP. at centre-of-mass energies up to 209 GeV, corresponding to an integrated luminosity of 675 pb(-1). No evidence for the production of such particles is found in the decay channels (t) over tilde -->C/uchi, (t) over tilde -->bl (nu) over tilde, (q) over tilde -->bchi, ($) over tilde -->qchi or in the stop four-body decay channel (t) over tilde -->bchif (f) over bar' studied for the first time at LEP. The results of these searches yield improved mass lower limits. In particular, an absolute lower limit of 63 GeV/c(2) is obtained for the stop mass, at 95% confidence level, irrespective of the stop lifetime and decay branching ratios. (C) 2002 Elsevier Science B.V All rights reserved. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000176427800002 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212211]  |
| 专题 | 高能物理研究所_实验物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | ALEPH Collaboration. Search for scalar quarks in e(+)e(-) collisions at root s up to 209 GeV[J]. PHYSICS LETTERS B,2002,537(1--2):5-20. |
| APA | ALEPH Collaboration.(2002).Search for scalar quarks in e(+)e(-) collisions at root s up to 209 GeV.PHYSICS LETTERS B,537(1--2),5-20. |
| MLA | ALEPH Collaboration."Search for scalar quarks in e(+)e(-) collisions at root s up to 209 GeV".PHYSICS LETTERS B 537.1--2(2002):5-20. |
入库方式： OAI收割
来源：高能物理研究所
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