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题名: Ultrahigh jet multiplicity signal of stringy no-scale F-SU(5) at the root s=7 TeV LHC
作者: Li, TJ ;  Maxin, JA ;  Nanopoulos, DV ;  Walker, JW
刊名: PHYSICAL REVIEW D
出版日期: 2011
卷号: 84, 期号:7, 页码:76003
关键词: X U(1)(X) MODELS ;  SU(5) ;  SUPERGRAVITY ;  GENERATION ;  SEARCHES ;  DETECTOR ;  MASS
学科分类: Physics
通讯作者: Li, TJ (reprint author), Texas A&M Univ, George P & Cynthia W Mitchell Inst Fundamental Ph, College Stn, TX 77843 USA.
部门归属: [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; [Li, Tianjun] Chinese Acad Sci, Key Lab Frontiers Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China; [Nanopoulos, Dimitri V.] Houston Adv Res Ctr, Astroparticle Phys Grp, The Woodlands, TX 77381 USA; [Nanopoulos, Dimitri V.] Acad Athens, Div Nat Sci, Athens 10679, Greece; [Walker, Joel W.] Sam Houston State Univ, Dept Phys, Huntsville, TX 77341 USA
英文摘要: We present the distinctive collider signatures of no-scale F-SU(5), a highly efficient and phenomenologically favored model built on the tripodal foundations of the F-lipped SU(5) x U(1)(X) grand unified theory, extra F-theory derived TeV scale vectorlike particle multiplets, and the dynamic high-scale boundary conditions of no-scale supergravity. The identifying features of the supersymmetric spectrum are a light stop and gluino, with both sparticles much lighter than all the additional squarks. This unique mass hierarchy leads to the enhanced production of events with an ultrahigh multiplicity of hadronic jets, which should be clearly visible to the root s = 7 TeV LHC at only 1 fb(-1) of integrated luminosity. We suggest a modest alternative event cutting procedure based around a reduced minimal transverse momentum per jet (p(T) > 20 GeV), and an increased minimal multiplicity (>= 9) of distinct jets per subscribed event. These criteria optimize the F-SU(5) signal-to-background ratio, while readily suppressing the contribution of all standard model processes, allowing moreover a clear differentiation from competing models of new physics, most notably minimal supergravity. The characteristic no-scale signature is quite stable across the viable parameter space, modulo an overall rescaling of the mass spectrum; detection by the LHC of the ultrahigh jet signal would constitute a suggestive evocation of the intimately linked stringy origins of F-SU(5) and could possibly provide a glimpse into the underlying structure of the fundamental string moduli.
资助者: DOE [DE-FG03-95-Er-40917]; Natural Science Foundation of China [10821504, 11075194]; 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:000296527700011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14254
Appears in Collections:理论物理所2011年知识产出_期刊论文

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Recommended Citation:
Li, TJ,Maxin, JA,Nanopoulos, DV,et al. Ultrahigh jet multiplicity signal of stringy no-scale F-SU(5) at the root s=7 TeV LHC[J]. PHYSICAL REVIEW D,2011,84(7):76003.
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