The SM extension with color-octet scalars: diphoton enhancement and global fit of LHC Higgs data
文献类型：期刊论文
| 作者 | Yang, JM
|
| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
 |
| 出版日期 | 2013 |
| 期号 | 8页码:9 |
| 关键词 | ELECTROWEAK SYMMETRY-BREAKING EQUIVALENCE THEOREM STANDARD MODEL PRECISE FORMULATION BOSON ANATOMY BOUNDS MASS |
| ISSN号 | 1029-8479 |
| 通讯作者 | Cao, JJ (reprint author), Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China. |
| 英文摘要 | In light of the significant progress of the LHC to determine the properties of the Higgs boson, we investigate the capability of the Manohar-Wise model in explaining the Higgs data. This model extends the SM by one family of color-octet and isospin-doublet scalars, and it can sizably alter the coupling strengths of the Higgs boson with gluons and photons. We first examine the current constraints on the model, which are from unitarity, the LHC searches for the scalars and the electroweak precision data (EWPD). In implementing the unitarity constraint, we use the properties of the SU(3) group to simplify the calculation. Then in the allowed parameter space we perform a fit of the model, using the latest ATLAS and CMS data, respectively. We find that the Manohar-Wise model is able to explain the data with chi(2) significantly smaller than the SM value. We also find that the current Higgs data, especially the ATLAS data, are very powerful in further constraining the parameter space of the model. In particular, in order to explain the gamma gamma enhancement reported by the ATLAS collaboration, the sign of the hgg coupling is usually opposite to that in the SM. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China (NNSFC) [10775039, 11075045, 11275245, 10821504, 11135003]; Specialized Research Fund for the Doctoral Program of Higher Education [20104104110001]; Project of Knowledge Innovation Program (PKIP) of Chinese Academy of Sciences [KJCX2.YW.W10] |
| 原文出处 | http://dx.doi.org/10.1007/JHEP08(2013)009 |
| 语种 | 英语 |
| WOS记录号 | WOS:000324113700009 |
| 公开日期 | 2014-04-25 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15301]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Yang, JM. The SM extension with color-octet scalars: diphoton enhancement and global fit of LHC Higgs data[J]. JOURNAL OF HIGH ENERGY PHYSICS,2013(8):9. |
| APA | Yang, JM.(2013).The SM extension with color-octet scalars: diphoton enhancement and global fit of LHC Higgs data.JOURNAL OF HIGH ENERGY PHYSICS(8),9. |
| MLA | Yang, JM."The SM extension with color-octet scalars: diphoton enhancement and global fit of LHC Higgs data".JOURNAL OF HIGH ENERGY PHYSICS .8(2013):9. |
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。