A 125.5 GeV Higgs boson in F-SU(5): imminently observable proton decay, a 130 GeV gamma-ray line, and SUSY multijets & light stops at the LHC8

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	A 125.5 GeV Higgs boson in F-SU(5): imminently observable proton decay, a 130 GeV gamma-ray line, and SUSY multijets & light stops at the LHC8
	Li, TJ
刊名	EUROPEAN PHYSICAL JOURNAL C
	2012
卷号	72 期号:12 页码:2246
关键词	X U(1)(X) MODELS NO-SCALE F-SU(5) SU(5) SUPERGRAVITY SEARCH MASS
ISSN号	1434-6044
通讯作者	Li, TJ (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
英文摘要	We establish that the light Higgs boson mass in the context of the No-Scale Flipped SU(5) GUT with TeV-scale vector-like matter multiplets (flippons) is consistent with m(h) = 125.5 +/- 0.5 GeV in the region of the best supersymmetry (SUSY) spectrum fit to low statistics data excesses observed by ATLAS in multijet and light stop 5 fb(-1) SUSY searches at the LHC7. Simultaneous satisfaction of these disparate goals is achieved by employing a minor decrease in the SU(5) partial unification scale M-32 to lower the flippon mass, inducing a larger Higgs boson mass shift from the flippon loops. The reduction in M-32, which is facilitated by a phenomenologically favorable reduction of the low-energy strong coupling constant, moreover suggests an imminently observable (e vertical bar mu)(+)pi(0) proton decay with a central value time scale of 1.7 x 10(34) years. At the same point in the model space, we find a lightest neutralino mass of m(chi) = 145 GeV, which is suitable for the production of 130 GeV monochromatic gamma-rays through annihilations yielding associated Z-bosons; a signal with this energy signature has been identified within observations of the galactic center by the FERMI-LAT Space Telescope. In conjunction with direct correlations to the fate of the ATLAS multijet and light stop production channels presently being tested at the LHC8, we suggest that the reality of a 125.5 GeV Higgs boson affords a particularly rich company of specific and imminently testable associated observables.
学科主题	Physics
收录类别	SCI
资助信息	DOE [DE-FG03-95-Er-40917]; Natural Science Foundation of China [10821504, 11075194, 11135003]; Mitchell-Heep Chair in High Energy Physics
原文出处	http://dx.doi.org/10.1140/epjc/s10052-012-2246-0
语种	英语
WOS记录号	WOS:000314407400014
公开日期	2014-04-24
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/14963]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Li, TJ. A 125.5 GeV Higgs boson in F-SU(5): imminently observable proton decay, a 130 GeV gamma-ray line, and SUSY multijets & light stops at the LHC8[J]. EUROPEAN PHYSICAL JOURNAL C,2012,72(12):2246.
APA	Li, TJ.(2012).A 125.5 GeV Higgs boson in F-SU(5): imminently observable proton decay, a 130 GeV gamma-ray line, and SUSY multijets & light stops at the LHC8.EUROPEAN PHYSICAL JOURNAL C,72(12),2246.
MLA	Li, TJ."A 125.5 GeV Higgs boson in F-SU(5): imminently observable proton decay, a 130 GeV gamma-ray line, and SUSY multijets & light stops at the LHC8".EUROPEAN PHYSICAL JOURNAL C 72.12(2012):2246.