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题名: 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
作者: Li, TJ ;  Maxin, JA ;  Nanopoulos, DV ;  Walker, J
刊名: EUROPEAN PHYSICAL JOURNAL C
出版日期: 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
学科分类: Physics
通讯作者: Li, TJ (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
部门归属: [Li, Tianjun] Chinese Acad Sci, State Key Lab Theoret Phys, Beijing 100190, Peoples R China; [Li, Tianjun] Chinese Acad Sci, Kavli Inst Theoret Phys China KITPC, Beijing 100190, Peoples R China; [Li, Tianjun] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China; [Li, Tianjun; Maxin, James A.; Nanopoulos, Dimitri V.] Texas A&M Univ, George P & Cynthia W Mitchell Inst Fundamental Ph, College Stn, TX 77843 USA; [Nanopoulos, Dimitri V.] Houston Adv Res Ctr HARC, Astroparticle Phys Grp, The Woodlands, TX 77381 USA; [Nanopoulos, Dimitri V.] Acad Athens, Div Nat Sci, Athens 10679, Greece; [Walker, Joelw.] Sam Houston State Univ, Dept Phys, Huntsville, TX 77341 USA
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.
资助者: DOE [DE-FG03-95-Er-40917]; Natural Science Foundation of China [10821504, 11075194, 11135003]; Mitchell-Heep Chair in High Energy Physics
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000314407400014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14963
Appears in Collections:理论物理所2012年知识产出_期刊论文

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Recommended Citation:
Li, TJ,Maxin, JA,Nanopoulos, DV,et al. 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.
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