中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Realizing dark matter and Higgs inflation in light of LHC diphoton excess

文献类型:期刊论文

作者Ge, Shao-Feng1; He, Hong-Jian2,3,4; Ren, Jing5; Xianyu, Zhong-Zhi6,7
刊名PHYSICS LETTERS B
出版日期2016-06-10
卷号757页码:480-492
ISSN号0370-2693
关键词LHC New resonance Dark matter Higgs inflation
DOI10.1016/j.physletb.2016.04.008
英文摘要LHC Run-2 has provided intriguing di-photon signals of a new resonance around 750 GeV, which, if not due to statistical fluctuations, must call for new physics beyond the standard model (SM) at TeV scale. We propose a minimal extension of the SM with a complex singlet scalar S and a doublet of vector-like quarks. The scalar sector respects CP symmetry, with its CP-odd imaginary component chi providing a natural dark matter (DM) candidate. The real component of S serves as the new resonance (750GeV) and explains the diphoton excess of the LHC Run-2. The new scalar degrees of freedom of S help to stabilize the Higgs vacuum, and can realize the Higgs inflation around GUT scale, consistent with the current cosmological observations. We construct two representative samples A and B of our model for demonstration. We study the mono jet signals of DM production from invisible decays Re(S) -> chi chi at the LHC Run-2. We further derive the DM relic density bound, and analyze constraints from the direct and indirect DM detections. (C) 2016 The Authors. Published by Elsevier B.V.
WOS关键词STANDARD MODEL ; ATLAS DETECTOR ; PP COLLISIONS ; ROOT-S=8 TEV ; FINAL-STATES ; BOSON ; SEARCH ; RESONANCE ; PHYSICS ; MASS
资助项目National Natural Science Foundation of China[11275101] ; National Natural Science Foundation of China[11135003] ; National Basic Research Program[2010CB833000] ; Tsinghua University[20141081211]
WOS研究方向Astronomy & Astrophysics ; Physics
语种英语
出版者ELSEVIER SCIENCE BV
WOS记录号WOS:000376800300067
资助机构National Natural Science Foundation of China ; National Basic Research Program ; Tsinghua University
源URL[http://119.78.100.186/handle/113462/42699]  
专题中国科学院近代物理研究所
通讯作者He, Hong-Jian
作者单位1.Max Planck Inst Kernphys, D-69117 Heidelberg, Germany
2.Tsinghua Univ, Inst Modern Phys, Beijing 100084, Peoples R China
3.Tsinghua Univ, Ctr High Energy Phys, Beijing 100084, Peoples R China
4.Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China
5.Univ Toronto, Dept Phys, 60 St George St, Toronto, ON M5S 1A7, Canada
6.Harvard Univ, Ctr Math Sci & Applicat, Cambridge, MA 02138 USA
7.Harvard Univ, Dept Phys, Cambridge, MA 02138 USA
推荐引用方式
GB/T 7714
Ge, Shao-Feng,He, Hong-Jian,Ren, Jing,et al. Realizing dark matter and Higgs inflation in light of LHC diphoton excess[J]. PHYSICS LETTERS B,2016,757:480-492.
APA Ge, Shao-Feng,He, Hong-Jian,Ren, Jing,&Xianyu, Zhong-Zhi.(2016).Realizing dark matter and Higgs inflation in light of LHC diphoton excess.PHYSICS LETTERS B,757,480-492.
MLA Ge, Shao-Feng,et al."Realizing dark matter and Higgs inflation in light of LHC diphoton excess".PHYSICS LETTERS B 757(2016):480-492.

入库方式: OAI收割

来源:近代物理研究所

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。