LHC constraints on a Higgs boson partner from an extended color sector

doi:10.1103/PhysRevD.90.015013

	LHC constraints on a Higgs boson partner from an extended color sector
	Chivukula, R. Sekhar 1; Simmons, Elizabeth H.1; Farzinnia, Arsham 2; Ren, Jing 3,4
刊名	PHYSICAL REVIEW D
	2014-07-14
卷号	90
ISSN号	1550-7998
DOI	10.1103/PhysRevD.90.015013
文献子类	Article
英文摘要	We discuss the properties and LHC phenomenology of a potentially discoverable heavy scalar boson (s) that arises in the context of the renormalizable coloron model; the model also contains a light scalar, h, identifiable with the 125 GeV state discovered by the LHC. These two scalar mass eigenstates are admixtures of a weak doublet gauge eigenstate and a weak singlet gauge eigenstate. A previous study set exclusion limits on the heavy s scalar, using the stability of the scalar potential, unitarity, electroweak precision tests, and LHC searches for the 125 GeV Higgs; it also briefly discussed the root s = 7, 8 TeV LHC searches for a heavy Higgs. In this work, we show how the projected LHC sensitivity at root s = 14 TeV to the presence of a heavy Higgs and to the detailed properties of the 125 GeV Higgs will further constrain the properties of the new heavy s scalar. Since the renormalizable coloron model may contain spectator fermions to remove anomalies, we examine several representative scenarios with different numbers of spectator fermions. Our results are summarized in plots that overlay the current exclusion limits on the s boson with the projected sensitivity of the root s = 14 TeV LHC to the new state. We find that the upcoming LHC searches should be sensitive to an s scalar of mass less than 1 TeV for essentially all of the model parameter space in which the h state differs from the Higgs boson of the SM. More precisely, unless the mixing between the weak doublet and weak singlet gauge-eigenstate scalars is zero, the 14 TeV LHC will be sensitive to the presence of the nonstandard heavy s state that is characteristic of the renormalizable coloron model.
WOS关键词	STANDARD MODEL ; CHIRAL COLOR ; TEVATRON ; MASS
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000339446800006
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/49513]
专题	中国科学院近代物理研究所
通讯作者	Chivukula, R. Sekhar
作者单位	1.Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA 2.Ctr Theoret Phys Universe, IBS, Taejon 305811, South Korea 3.Tsinghua Univ, Inst Modern Phys, Beijing 100084, Peoples R China 4.Tsinghua Univ, Ctr High Energy Phys, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Chivukula, R. Sekhar,Simmons, Elizabeth H.,Farzinnia, Arsham,et al. LHC constraints on a Higgs boson partner from an extended color sector[J]. PHYSICAL REVIEW D,2014,90.
APA	Chivukula, R. Sekhar,Simmons, Elizabeth H.,Farzinnia, Arsham,&Ren, Jing.(2014).LHC constraints on a Higgs boson partner from an extended color sector.PHYSICAL REVIEW D,90.
MLA	Chivukula, R. Sekhar,et al."LHC constraints on a Higgs boson partner from an extended color sector".PHYSICAL REVIEW D 90(2014).