Testing naturalness at 100 TeV

doi:10.1007/JHEP09(2017)129

IHEP OpenIR > 理论物理室

	Testing naturalness at 100 TeV
	Chen, CR; Hajer, J; Liu, T; Low, I; Zhang, H; Zhang H(张昊)
	2017
发表期刊	JOURNAL OF HIGH ENERGY PHYSICS (IF:6.063[JCR-2016],4.992[5-Year])
ISSN	1029-8479
期号	9 页码:129
文章类型	Article
摘要	Solutions to the electroweak hierarchy problem typically introduce a new symmetry to stabilize the quadratic ultraviolet sensitivity in the self-energy of the Higgs boson. The new symmetry is either broken softly or collectively, as for example in supersymmetric and little Higgs theories. At low energies such theories contain naturalness partners of the Standard Model fi elds which are responsible for canceling the quadratic divergence in the squared Higgs mass. Post the discovery of any partner-like particles, we propose to test the aforementioned cancellation by measuring relevant Higgs couplings. Using the fermionic top partners in little Higgs theories as an illustration, we construct a simpli fi ed model for naturalness and initiate a study on testing naturalness. After electroweak symmetry breaking, naturalness in the top sector requires alpha(T) = -lambda(2)(t) at leading order, where lambda(t) and alpha(T) are the Higgs couplings to a pair of top quarks and top partners, respectively. Using a multivariate method of Boosted Decision Tree to tag boosted particles in the Standard Model, we show that, with a luminosity of 30 ab(-1) at a 100TeV pp-collider, naturalness could be tested with a precision of 10% for a top partner mass up to 2.5TeV.
关键词	Beyond Standard Model Higgs Physics Technicolor and Composite Models
DOI	10.1007/JHEP09(2017)129
关键词[WOS]	SYMMETRY-BREAKING ; STANDARD MODEL ; ATLAS DETECTOR ; HIGGS-BOSON ; SEARCH ; LHC ; PHYSICS
收录类别	SCI ; SCOPUS ; ADS ; INSPIREHEP
语种	英语
WOS研究方向	Physics
WOS类目	Physics, Particles & Fields
WOS记录号	WOS:000412019300004
ADS Bibcode	2017JHEP...09..129C
ADS URL	https://ui.adsabs.harvard.edu/abs/2017JHEP...09..129C
ADS引文	https://ui.adsabs.harvard.edu/abs/2017JHEP...09..129C/citations
AXRIV号	175
INSPIRE ID	1600815
INSPIRE URL	https://inspirehep.net/record/1600815
引用统计	正在获取... 被引频次：7 [ADS]
文献类型	期刊论文
条目标识符	https://ir.ihep.ac.cn/handle/311005/284563
专题	理论物理室多学科研究中心
作者单位	中国科学院高能物理研究所
第一作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Chen, CR,Hajer, J,Liu, T,et al. Testing naturalness at 100 TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2017(9):129.
APA	Chen, CR,Hajer, J,Liu, T,Low, I,Zhang, H,&张昊.(2017).Testing naturalness at 100 TeV.JOURNAL OF HIGH ENERGY PHYSICS(9),129.
MLA	Chen, CR,et al."Testing naturalness at 100 TeV".JOURNAL OF HIGH ENERGY PHYSICS .9(2017):129.