Search for new physics phenomena in fermion-pair production at LEP
文献类型：期刊论文
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 1998 |
| 卷号 | 433期号:1--2页码:163-175 |
| 关键词 | E+E ANNIHILATION L3 EXPERIMENT LEPTOQUARKS QUARK |
| 通讯作者 | Acciarri, M (reprint author), Rhein Westfal TH Aachen, Inst Phys 1, D-52056 Aachen, Germany. |
| 英文摘要 | The measurements of hadron and lepton-pair production cross sections and lepton-pair forward-backward asymmetries performed with the L3 detector at centre-of-mass energies between 130 GeV and 172 GeV are used to search for new physics phenomena. New physics effects involving four fermion vertices - contact interactions - are looked for in all channels. For hadron production the exchange of virtual leptoquarks and scalar quarks is studied. No evidence for deviations from the Standard Model expectations is found. Lower limits on the scale Lambda of contact interactions in the range 1.2-7.1 TeV are obtained at the 95% confidence level for various models. Upper limits on the coupling strengths of leptoquarks and scalar quarks are derived. (C) 1998 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:000075193300023 |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/211930]  |
| 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 new physics phenomena in fermion-pair production at LEP[J]. PHYSICS LETTERS B,1998,433(1--2):163-175. |
| APA | (1998).Search for new physics phenomena in fermion-pair production at LEP.PHYSICS LETTERS B,433(1--2),163-175. |
| MLA | "Search for new physics phenomena in fermion-pair production at LEP".PHYSICS LETTERS B 433.1--2(1998):163-175. |
入库方式： OAI收割
来源：高能物理研究所
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