Search for charginos with a small mass difference to the lightest supersymmetric particle 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 | 482期号:1--3页码:31-42 |
| 关键词 | W-PAIR PRODUCTION MONTE-CARLO E(+)E(-) COLLIDERS L3 EXPERIMENT ENERGIES DETECTOR PHYSICS LEP LEP2/NLC |
| 通讯作者 | Acciarri, M (reprint author), Ist Nazl Fis Nucl, Sez Milan, I-20133 Milan, Italy. |
| 英文摘要 | A search for charginos nearly mass-degenerate with the lightest supersymmetric particle is performed using the 176 pb(-1) of data collected at 189 GeV in 1998 with the L3 detector. Mass differences between the chargino and the lightest supersymmetric particle below 4 GeV are considered. The presence of a high transverse momentum photon is required to single out the signal from the photon-photon interaction background. Na evidence for charginos is found and upper Limits on the cross section for chargino pail production are set, For the first time at LEP2, in the case of heavy scalar leptons, chargino <(chi)over tilde>(+/-)(1) - <(chi)over tilde>(0)(1) mass difference. (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:000087518900004 |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212047]  |
| 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 with a small mass difference to the lightest supersymmetric particle at root s=189 GeV[J]. PHYSICS LETTERS B,2000,482(1--3):31-42. |
| APA | (2000).Search for charginos with a small mass difference to the lightest supersymmetric particle at root s=189 GeV.PHYSICS LETTERS B,482(1--3),31-42. |
| MLA | "Search for charginos with a small mass difference to the lightest supersymmetric particle at root s=189 GeV".PHYSICS LETTERS B 482.1--3(2000):31-42. |
入库方式： OAI收割
来源：高能物理研究所
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