Ultrahigh jet multiplicity signal of stringy no-scale F-SU(5) at the {radical}(s)=7 TeV LHC

Journal Article · Sat Oct 01 00:00:00 EDT 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.84.076003· OSTI ID:21607831

Tianjun, Li ^[1]; Maxin, James A ^[1]; Nanopoulos, Dimitri V ^[1]; Walker, Joel W ^[2]

---

1. George P. and Cynthia W. Mitchell Institute for Fundamental Physics, Texas A and M University, College Station, Texas 77843 (United States)
2. Department of Physics, Sam Houston State University, Huntsville, Texas 77341 (United States)

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)xU(1){sub 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 {radical}(s)=7 TeV LHC at only 1 fb{sup -1} of integrated luminosity. We suggest a modest alternative event cutting procedure based around a reduced minimal transverse momentum per jet (p{sub 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.

• OSTI ID: 21607831
• Journal Information: Physical Review. D, Particles Fields, Vol. 84, Issue 7; Other Information: DOI: 10.1103/PhysRevD.84.076003; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOUNDARY CONDITIONS
CERN LHC
DETECTION
GEV RANGE 10-100
HADRONS
LUMINOSITY
MASS
MASS SPECTRA
MULTIPLICITY
PARTICLE MULTIPLETS
SPARTICLES
STANDARD MODEL
SU-5 GROUPS
SUPERGRAVITY
SUPERSYMMETRY
TEV RANGE 01-10
TRANSVERSE MOMENTUM
ACCELERATORS
CYCLIC ACCELERATORS
ELEMENTARY PARTICLES
ENERGY RANGE
FIELD THEORIES
GEV RANGE
GRAND UNIFIED THEORY
LIE GROUPS
LINEAR MOMENTUM
MATHEMATICAL MODELS
MULTIPLETS
OPTICAL PROPERTIES
PARTICLE MODELS
PHYSICAL PROPERTIES
POSTULATED PARTICLES
QUANTUM FIELD THEORY
SPECTRA
STORAGE RINGS
SU GROUPS
SYMMETRY
SYMMETRY GROUPS
SYNCHROTRONS
TEV RANGE
UNIFIED GAUGE MODELS
UNIFIED-FIELD THEORIES