Discovering strong top dynamics at the LHC

doi:10.1103/PhysRevD.86.095017

	Discovering strong top dynamics at the LHC
	Chivukula, R. Sekhar 1; Ittisamai, Pawin 1; Simmons, Elizabeth H.1; Coleppa, Baradhwaj 2; Logan, Heather E.2; Martin, Adam 3; Ren, Jing 1,4,5
刊名	PHYSICAL REVIEW D
	2012-11-16
卷号	86
ISSN号	1550-7998
DOI	10.1103/PhysRevD.86.095017
文献子类	Article
英文摘要	We analyze the phenomenology of the top-pion and top-Higgs states in models with strong top dynamics, and translate the present LHC searches for the Standard Model Higgs into bounds on these scalar states. We explore the possibility that the new state at a mass of approximately 125 GeV observed at the LHC is consistent with a neutral pseudoscalar top-pion state. We demonstrate that a neutral pseudoscalar top pion can generate the diphoton signal at the observed rate. However, the region of model parameter space where this is the case does not correspond to classic top-color-assisted technicolor scenarios with degenerate charged and neutral top pions and a top-Higgs mass of order 2m(t); rather, additional isospin violation would need to be present and the top dynamics would be more akin to that in top seesaw models. Moreover, the interpretation of the new state as a top pion can be sustained only if the ZZ (four-lepton) and WW (two-lepton plus missing energy) signatures initially observed at the 3 sigma level decline in significance as additional data are accrued.
WOS关键词	TOPCOLOR-ASSISTED TECHNICOLOR ; HIDDEN LOCAL SYMMETRIES ; MODEL HIGGS-BOSON ; YANG-MILLS THEORY ; STANDARD MODEL ; ROOT-S=7 TEV ; ATLAS DETECTOR ; PP COLLISIONS ; GAUGE BOSONS ; BREAKING
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000311142800009
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/48725]
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.Carleton Univ, Ottawa Carleton Inst Phys, Ottawa, ON K1S 5B6, Canada 3.Fermilab Natl Accelerator Lab, Dept Theoret Phys, Batavia, IL 60510 USA 4.Tsinghua Univ, Ctr High Energy Phys, Beijing 100084, Peoples R China 5.Tsinghua Univ, Inst Modern Phys, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Chivukula, R. Sekhar,Ittisamai, Pawin,Simmons, Elizabeth H.,et al. Discovering strong top dynamics at the LHC[J]. PHYSICAL REVIEW D,2012,86.
APA	Chivukula, R. Sekhar.,Ittisamai, Pawin.,Simmons, Elizabeth H..,Coleppa, Baradhwaj.,Logan, Heather E..,...&Ren, Jing.(2012).Discovering strong top dynamics at the LHC.PHYSICAL REVIEW D,86.
MLA	Chivukula, R. Sekhar,et al."Discovering strong top dynamics at the LHC".PHYSICAL REVIEW D 86(2012).