Search for Quark Compositeness with the Dijet Centrality Ratio in pp Collisions at root s=7 TeV
文献类型：期刊论文
| 作者 | CMS Collaboration |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2010 |
| 卷号 | 105期号:26 |
| 关键词 | PHENOMENOLOGY DISTRIBUTIONS COLLIDER LIMIT |
| 通讯作者 | Khachatryan, V (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia. |
| 英文摘要 | A search for quark compositeness in the form of quark contact interactions, based on hadronic jet pairs (dijets) produced in proton-proton collisions at root s = 7 eV, is described. The data sample of the study corresponds to an integrated luminosity of 2.9 pb(-1) collected with the CMS detector at the LHC. The dijet centrality ratio, which quantifies the angular distribution of the dijets, is measured as a function of the invariant mass of the dijet system and is found to agree with the predictions of the standard model. A statistical analysis of the data provides a lower limit on the energy scale of quark contact interactions. The sensitivity of the analysis is such that the expected limit is 2.9 TeV; because the observed value of the centrality ratio at high invariant mass is below the expectation, the observed limit is 4.0 TeV at the 95% confidence level. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000286754700004 |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/213006]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | CMS Collaboration. Search for Quark Compositeness with the Dijet Centrality Ratio in pp Collisions at root s=7 TeV[J]. PHYSICAL REVIEW LETTERS,2010,105(26). |
| APA | CMS Collaboration.(2010).Search for Quark Compositeness with the Dijet Centrality Ratio in pp Collisions at root s=7 TeV.PHYSICAL REVIEW LETTERS,105(26). |
| MLA | CMS Collaboration."Search for Quark Compositeness with the Dijet Centrality Ratio in pp Collisions at root s=7 TeV".PHYSICAL REVIEW LETTERS 105.26(2010). |
入库方式： OAI收割
来源：高能物理研究所
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