Search for first-generation scalar and vector leptoquarks
文献类型：期刊论文
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2001 |
| 卷号 | 64期号:9 |
| 关键词 | PRODUCTION CROSS-SECTION LEPTON FLAVOR VIOLATION TOP-QUARK MASS PAIR PRODUCTION P(P)OVER-BAR COLLISIONS ROOT-S=1.8 TEV HERA DETECTOR JETS COLLABORATION |
| 通讯作者 | Abazov, VM (reprint author), Joint Inst Nucl Res, Dubna, Russia. |
| 英文摘要 | We describe a search for the pair production of first-generation scalar and vector leptoquarks in the eejj and evjj channels by the DO Collaboration. The data are from the 1992-1996 p (p) over bar run at roots = 1.8 TeV at the Fermilab Tevatron collider. We find no evidence for leptoquark production: in addition. no kinematically interesting events are observed using relaxed selection criteria. The results from the eejj and evjj channels are combined with those from a previous DO analysis of the vvjj channel to obtain 95% confidence level (C.L.) upper limits on the leptoquark pair-production cross section as a function of mass and of beta. the branching fraction to a charged lepton. These limits are compared to next-to-leading-order theory to set 95% C.L. lower limits on the mass of a first-generation scalar leptoquark of 225, 204, and 79 GeV/c(2) for beta = 1. 1/2. and 0, respectively. For vector leptoquarks with gauge (Yang-Mills) couplings, 95% C.L. lower limits of 345. 337, and 206 GeV/c(2) are set on the mass for beta = 1, 1/2, and 0. respectively. Mass limits for vector leptoquarks are also set for anomalous vector couplings. |
| 学科主题 | Astronomy & Astrophysics; Physics |
| 类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000171852100006 |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212149]  |
| 专题 | 高能物理研究所_实验物理中心 |
| 推荐引用方式 GB/T 7714 | . Search for first-generation scalar and vector leptoquarks[J]. PHYSICAL REVIEW D,2001,64(9). |
| APA | (2001).Search for first-generation scalar and vector leptoquarks.PHYSICAL REVIEW D,64(9). |
| MLA | "Search for first-generation scalar and vector leptoquarks".PHYSICAL REVIEW D 64.9(2001). |
入库方式： OAI收割
来源：高能物理研究所
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