Challenges for models with composite states

doi:http://dx.doi.org/10.1103/PhysRevD.94.055029

CORC > 理论物理研究所 > 中国科学院理论物理研究所 > 理论物理所科研产出 > 理论物理所1978-2010年知识产出

	Challenges for models with composite states
	Cline, JM ; Huang, WC ; Moore, GD
刊名	PHYSICAL REVIEW D
	2016
卷号	94 期号:5 页码:55029
关键词	COLLISIONS PARTICLES SEARCH QCD PP
DOI	http://dx.doi.org/10.1103/PhysRevD.94.055029
英文摘要	Composite states of electrically charged and QCD-colored hyperquarks (HQs) in a confining SU(N-HC) hypercolor gauge sector are a plausible extension of the standard model at the TeV scale and have been widely considered as an explanation for the tentative LHC diphoton excess. Additional new physics is required to avoid a stable charged hyperbaryon in such theories. We classify renormalizable models allowing the decay of this unwanted relic directly into standard model states, showing that they are significantly restricted if the new scalar states needed for UV completion are at the TeV scale. Alternatively, if hyperbaryon number is conserved, the charged relic can decay into a neutral hyperbaryon. Such theories are strongly constrained by direct detection, if the neutral constituent hyperquark carries color or weak isospin, and by LHC searches for leptoquarks if it is a color singlet. We show that the neutral hyperbaryon can have the observed relic abundance if the confinement scale and the hyperquark mass are above TeV scale, even in the absence of any hyperbaryon asymmetry.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
资助机构	National Science Foundation [PHY-1066293] ; Postgraduate Scholarship Program of China Scholarship Council [201504910563] ; NSERC (Natural Sciences and Engineering Research Council of Canada) ; FRQNT (Fonds de recherche du Quebec-Nature et technologies) ; Land Hessen
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/23051]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China 2.McGill Univ, Dept Phys, 3600 Rue Univ, Montreal, PQ H3A 2T8, Canada 3.Moore, Guy D.] Tech Univ Darmstadt, Inst Kernphys, Schlossgartenstr 2, D-64289 Darmstadt, Germany
推荐引用方式 GB/T 7714	Cline, JM,Huang, WC,Moore, GD. Challenges for models with composite states[J]. PHYSICAL REVIEW D,2016,94(5):55029.
APA	Cline, JM,Huang, WC,&Moore, GD.(2016).Challenges for models with composite states.PHYSICAL REVIEW D,94(5),55029.
MLA	Cline, JM,et al."Challenges for models with composite states".PHYSICAL REVIEW D 94.5(2016):55029.