Tianjun Li, James A. Maxin, Dimitri V. Nanopoulos, Joel W. Walker
We present the reach of the Large Hadron Collider (LHC) into the parameter
space of No-Scale F-SU(5), starting our analysis with the current operating
energy of \sqrt{s} = 7 TeV, and extending it on through the bright future of a
14 TeV beam. No-Scale F-SU(5) is a model defined by the confluence of the
F-lipped SU(5) Grand Unified Theory, two pairs of hypothetical TeV scale
vector-like supersymmetric multiplets with origins in F-theory, and the
dynamically established boundary conditions of No-Scale Supergravity. When
searching for a five standard deviation signal, we find that the CMS experiment
at the \sqrt{s} = 7 TeV LHC began to penetrate the phenomenologically viable
parameter space of this model at just under 1/fb of integrated luminosity, and
that the majority of this space remains intact, subsequent to analyses of the
first 1.1/fb of CMS data. On the contrary, the ATLAS experiment had not reached
the F-SU(5) parameter space in its first 1.34/fb of luminosity. Since the CMS
and ATLAS detectors have now each amassed a milestone of 5/fb of collected
luminosity, the current LHC is presently effectively probing No-Scale F-SU(5).
Upon the crossing of the 5/fb threshold, the 7 TeV LHC will have achieved five
standard deviation discoverability for a unified gaugino mass of up to about
532 GeV, a light stop of 577 GeV, a gluino of 728 GeV, and heavy squarks of
just over 1 TeV. Extending the analysis to include a future LHC center-of-mass
beam energy of \sqrt{s} = 14 TeV, the full model space of No-Scale F-SU(5)
should be visible to CMS at about 30/fb of integrated luminosity. We stress
that the F-SU(5) discoverability thresholds discussed here are contingent upon
retaining only those events with nine jets or more for the CMS experiment and
seven jets or more for the ATLAS experiment.
View original:
http://arxiv.org/abs/1107.3825
No comments:
Post a Comment