Theta in new QCD-like sectors
文献类型：期刊论文
| 作者 | Draper, P; Kozaczuk, J; Yu, JH
|
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2018 |
| 卷号 | 98期号:1页码:15028 |
| ISSN号 | 2470-0010 |
| 关键词 | STRONG CP PROBLEM PROTON-PROTON COLLISIONS PAIR-PRODUCED RESONANCES ROOT-S=13 TEV FINAL-STATES NATURAL SUPPRESSION INVISIBLE AXION ATLAS DETECTOR STRONG P SEARCH |
| DOI | 10.1103/PhysRevD.98.015028 |
| 英文摘要 | New QCD-like "hypercolor" sectors can generate a broad class of new signatures at hadron colliders and furnish a variety of dark matter candidates. Paired diboson resonances are a particularly important collider signature, arising both from CP-conserving vector hypermeson decays of the form (rho) over tilde -> (pi) over tilde(pi) over tilde -> 4V and from CP-violating pseudoscalar hypermeson decays of the form (eta) over tilde -> (pi) over tilde(pi) over tilde -> 4V. The latter are sensitive to the vacuum angle (theta) over tilde in the hypercolor sector. We study single- and paired-diboson resonance signatures in final states involving gluons and photons at the LHC and a future 100 TeV pp collider, illustrating the discovery potential at both colliders in simple benchmark models. We also describe some of the theoretical and cosmological consequences of (theta) over tilde. If CP-violating hypermeson decays are observable at hadron colliders, ordinary QCD must have an axion. Such scenarios also provide a natural setting for a dark pion component of dark matter, with its relic abundance set by CP-violating annihilations. If the new vacuum angle is relaxed to zero by a dark axion, the relic density can instead be a mixture of axions and dark axions. Overproduction of dark axions is most easily avoided if the Universe underwent a period of early matter domination. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/22859]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.[Draper, Patrick 2.Univ Massachusetts, Amherst Ctr Fundamental Interact, Dept Phys, Amherst, MA 01003 USA 3.Chinese Acad Sci, CAS Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China 4.Kozaczuk, Jonathan |
| 推荐引用方式 GB/T 7714 | Draper, P,Kozaczuk, J,Yu, JH. Theta in new QCD-like sectors[J]. PHYSICAL REVIEW D,2018,98(1):15028. |
| APA | Draper, P,Kozaczuk, J,&Yu, JH.(2018).Theta in new QCD-like sectors.PHYSICAL REVIEW D,98(1),15028. |
| MLA | Draper, P,et al."Theta in new QCD-like sectors".PHYSICAL REVIEW D 98.1(2018):15028. |
入库方式： OAI收割
来源：理论物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。