Search for charginos and neutralinos in e(+)e(-) collisions at root s=189 GeV
文献类型：期刊论文
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2000 |
| 卷号 | 472期号:3--4页码:420-433 |
| 关键词 | ELECTRON-POSITRON COLLISIONS STATE QED CORRECTIONS W-PAIR PRODUCTION MONTE-CARLO L3 EXPERIMENT STANDARD MODEL SUPERSYMMETRY LEP DETECTOR ENERGIES |
| 通讯作者 | Acciarri, M (reprint author), Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy. |
| 英文摘要 | We report the result of a search for charginos and neutralinos, in e(+)e(-) collisions at 189 GeV centre-of-mass energy at LEP, No evidence for such particles is found in a data sample of 176 pb(-1). Improved upper limits for these particles are set on the production cross sections. New exclusion contours in the parameter space of the Minimal Supersymmetric Standard Model are derived, as well as new lower limits on the masses of these supersymmetric particles. Under the assumptions of common gaugino and scalar masses at the GUT scale, we set an absolute lower limit on the mass of the lightest neutralino of 32.5 GeV, and a limit on the mass of the lightest chargino of 67.7 GeV for M-2 < 2TeV. (C) 2000 Published by 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:000085123800027 |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212022]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 推荐引用方式 GB/T 7714 | . Search for charginos and neutralinos in e(+)e(-) collisions at root s=189 GeV[J]. PHYSICS LETTERS B,2000,472(3--4):420-433. |
| APA | (2000).Search for charginos and neutralinos in e(+)e(-) collisions at root s=189 GeV.PHYSICS LETTERS B,472(3--4),420-433. |
| MLA | "Search for charginos and neutralinos in e(+)e(-) collisions at root s=189 GeV".PHYSICS LETTERS B 472.3--4(2000):420-433. |
入库方式： OAI收割
来源：高能物理研究所
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