Published September 1, 2015 | Version v1
Journal article

The 14 TeV LHC takes aim at SUSY: a No-Scale supergravity model for LHC Run 2

  • 1. State Key Laboratory of Theoretical Physics and Kavli Institute for Theoretical Physics China (KITPC), Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190 (China)
  • 2. Department of Physics and Engineering Physics, The University of Tulsa, Tulsa, OK 74104 (United States)
  • 3. George P. and Cynthia W. Mitchell Institute for Fundamental Physics and Astronomy, Texas A and M University, College Station, TX 77843 (United States)
  • 4. Department of Physics, Sam Houston State University, Huntsville, TX 77341 (United States)

Description

The supergravity model named No-Scale F S U ( 5 ), which is based upon the flipped SU(5) grand unified theory (GUT) with additional TeV-scale vector-like flippon multiplets, has been partially probed during the Large Hadron Collider Run 1 at 7–8 TeV, though the majority of its model space remains viable and should be accessible by the 13–14 TeV LHC during Run 2. The model framework possesses the rather unique capacity to provide a light CP-even Higgs boson mass in the favored 124–126 GeV window while simultaneously retaining a testably light supersymmetry spectrum. We summarize the outlook for No-Scale F S U ( 5 ) at the 13–14 TeV LHC and review a promising methodology for the discrimination of its long-chain cascade decay signature. We further show that proportional dependence of all model scales upon the unified gaugino mass M 1 / 2 minimizes electroweak fine-tuning, allowing the Z-boson mass MZ to be expressed as an explicit function of M 1 / 2 , M Z 2 = M Z 2 ( M 1 / 2 2 ), with implicit dependence upon a dimensionless ratio c of the supersymmetric Higgs mixing parameter μ and M 1 / 2 . Finally, we elucidate an empirical connection between recent scalar tensor measurements and No-Scale supergravity cosmological models that mimic the Starobinsky model of inflation. (invited comment)

Availability note (English)

Available from http://dx.doi.org/10.1088/0031-8949/90/9/098001

Additional details

Publishing Information

Journal Title
Physica Scripta (Online)
Journal Volume
90
Journal Issue
9
Journal Page Range
[12 p.]
ISSN
1402-4896