Search for pair production of light scalar top quarks in p(p)over-bar collisions at root s=1.8 TeV
文献类型：期刊论文
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2004 |
| 卷号 | 93期号:1 |
| 关键词 | FERMILAB TEVATRON SUPERSYMMETRY COLLIDER DETECTOR SQUARKS PHYSICS |
| 通讯作者 | Abazov, VM (reprint author), Joint Inst Nucl Res, Dubna, Russia. |
| 英文摘要 | Using 85.2+/-3.6 pb(-1) of p (p) over bar collisions collected at roots=1.8 TeV with the D0 detector at Fermilab's Tevatron Collider, we present the results of a search for direct pair production of scalar top quarks ((t) over bar), the supersymmetric partners of the top quark. We examined events containing two or more jets and missing transverse energy, the signature of light scalar top quark decays to charm quarks and neutralinos. After selections, we observe 27 events while expecting 31.1+/-6.4 events from known standard model processes. Comparing these results to next-to-leading-order production cross sections, we exclude a significant region of (t) over tilde and neutralino phase space. In particular, we exclude the (t) over tilde mass m((t) over tilde)<122 GeV/c(2) for a neutralino mass of 45 GeV/c(2). |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000222390900008 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212406]  |
| 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 pair production of light scalar top quarks in p(p)over-bar collisions at root s=1.8 TeV[J]. PHYSICAL REVIEW LETTERS,2004,93(1). |
| APA | (2004).Search for pair production of light scalar top quarks in p(p)over-bar collisions at root s=1.8 TeV.PHYSICAL REVIEW LETTERS,93(1). |
| MLA | "Search for pair production of light scalar top quarks in p(p)over-bar collisions at root s=1.8 TeV".PHYSICAL REVIEW LETTERS 93.1(2004). |
入库方式： OAI收割
来源：高能物理研究所
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