Search for supersymmetric particles in e(+)e(-) collisions at root s up to 202 GeV and mass limit for the lightest neutralino
文献类型：期刊论文
| 作者 | ALEPH Collaboration |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2001 |
| 卷号 | 499期号:1--2页码:67-84 |
| 关键词 | SCALAR BOTTOM QUARKS ROOT-S=189 GEV MONTE-CARLO P(P)OVER-BAR COLLISIONS EVENT GENERATOR PAIR PRODUCTION CHARGINOS LEP SQUARKS TEV |
| 通讯作者 | Barate, R (reprint author), IN2P3, CNRS, Phys Particules Lab, LAPP, F-74019 Annecy Le Vieux, France. |
| 英文摘要 | Searches for pair production of squarks, sleptons, charginos and neutralinos are performed with the data collected by the ALEPH detector at LEP at centre-of-mass energies from 188.6 to 201.6 GeV. No evidence for any such signals is observed in a total integrated luminosity of about 410 ph(-1). The negative results of the searches are translated into exclusion domains in the space of the relevant MSSM parameters, which improve significantly on the constraints set previously. Under the assumptions of gaugino and sfermion mass unification, these results allow a 95% C.L. lower limit of 37 GeV/c(2) to be set on the mass of the lightest neutralino for any tan beta and sfermion mass. Additional constraints in the MSSM parameter space are derived from the negative results of ALEPH searches for Higgs bosons. The results are also interpreted in the framework of minimal supergravity. (C) 2001 Published by Elsevier Science B.V. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000166949100007 |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212099]  |
| 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 supersymmetric particles in e(+)e(-) collisions at root s up to 202 GeV and mass limit for the lightest neutralino[J]. PHYSICS LETTERS B,2001,499(1--2):67-84. |
| APA | ALEPH Collaboration.(2001).Search for supersymmetric particles in e(+)e(-) collisions at root s up to 202 GeV and mass limit for the lightest neutralino.PHYSICS LETTERS B,499(1--2),67-84. |
| MLA | ALEPH Collaboration."Search for supersymmetric particles in e(+)e(-) collisions at root s up to 202 GeV and mass limit for the lightest neutralino".PHYSICS LETTERS B 499.1--2(2001):67-84. |
入库方式： OAI收割
来源：高能物理研究所
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