SU(6) GUT origin of the TeV-scale vectorlike particles associated with the 750 GeV diphoton resonance

doi:http://dx.doi.org/10.1103/PhysRevD.94.036006

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	SU(6) GUT origin of the TeV-scale vectorlike particles associated with the 750 GeV diphoton resonance
	Dutta, B ; Gao, Y ; Ghosh, T ; Gogoladze, I 1; Li, TJ; Walker, JW
刊名	PHYSICAL REVIEW D
	2016
卷号	94 期号:3 页码:36006
关键词	HIGGS-BOSON MODELS EXCESS MASS LHC PHYSICS
DOI	http://dx.doi.org/10.1103/PhysRevD.94.036006
英文摘要	We consider the SU(6) grand unified theory (GUT) model as an explanation for the diphoton final state excess, where the masses of all associated particles are linked with a new symmetry breaking scale. In this model, the diphoton final states arise due to loops involving three pairs of new vectorlike particles having the same quantum numbers as down-type quarks and lepton doublets. These new vectorlike fermions arc embedded alongside the standard model (SM) fermions into minimal anomaly-free representations of the SU(6) gauge symmetry. The SU(6) symmetry is broken to the standard model times U(1)(x) at the GUT scale, and masses for the vectorlike fermions arise at the TeV scale only after the residual U(1)(x) symmetry is broken. The vectorlike fermions do not acquire masses via breaking of the SM symmetry at the electroweak scale. The field which is responsible for the newly observed resonance belongs to the 6(H) representation. The dark matter arises from the SM singlet fermion residing in 6 and is of Majorana type. We explicitly demonstrate gauge coupling unification in this model, and also discuss the origin of neutrino masses. In addition to the diphoton final states, we make distinctive predictions for other final states which are likewise accessible to the ongoing LHC experimental effort.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
资助机构	DOE Award [DE-FG02-13ER42020] ; Mitchell Institute for Fundamental Physics and Astronomy ; Bartol Research Institute ; Rustaveli National Science Foundation Grant [03/79] ; Natural Science Foundation of China [11135003, 11275246, 11475238] ; National Science Foundation Grant [PHY-1521105]
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/23341]
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.Texas A&M Univ, Mitchell Inst Fundamental Phys & Astron, Dept Phys & Astron, College Stn, TX 77843 USA 2.Univ Delaware, Bartol Res Inst, Dept Phys & Astron, Newark, DE 19716 USA 3.Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Inst Theoret Phys, KITPC, Beijing 100190, Peoples R China 5.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 6.Univ Elect Sci & Technol China, Sch Phys Elect, Chengdu 610054, Peoples R China 7.Walker, Joel W.] Sam Houston State Univ, Dept Phys, Huntsville, TX 77341 USA
推荐引用方式 GB/T 7714	Dutta, B,Gao, Y,Ghosh, T,et al. SU(6) GUT origin of the TeV-scale vectorlike particles associated with the 750 GeV diphoton resonance[J]. PHYSICAL REVIEW D,2016,94(3):36006.
APA	Dutta, B,Gao, Y,Ghosh, T,Gogoladze, I,Li, TJ,&Walker, JW.(2016).SU(6) GUT origin of the TeV-scale vectorlike particles associated with the 750 GeV diphoton resonance.PHYSICAL REVIEW D,94(3),36006.
MLA	Dutta, B,et al."SU(6) GUT origin of the TeV-scale vectorlike particles associated with the 750 GeV diphoton resonance".PHYSICAL REVIEW D 94.3(2016):36006.