Testing No-Scale Supergravity with the Fermi Space Telescope LAT

Abstract

We describe a methodology for testing No-Scale Supergravity by the LAT instrument onboard the Fermi Space Telescope via observation of gamma ray emissions from lightest supersymmetric (SUSY) neutralino annihilations. For our test vehicle we engage the framework of the supersymmetric grand unified model No-Scale Flipped $SU(5)$ with extra vector-like flippon multiplets derived from F-Theory, known as $\mathcal{F}$-$SU(5)$. We show that through compression of the light stau and light bino neutralino mass difference, where internal bremsstrahlung (IB) photons give a dominant contribution, the photon yield from annihilation of SUSY dark matter can be elevated to a number of events potentially observable by the Fermi-LAT in the coming years. Likewise, the increased yield in No-Scale $\mathcal{F}$-$SU(5)$ may also have rendered the existing observation of a 133 GeV monochromatic gamma ray line visible, if additional data should exclude systematic or statistical explanations. The question of intensity aside, No-Scale $\mathcal{F}$-$SU(5)$ can indeed provide a natural weakly interacting massive particle (WIMP) candidate with a mass in the correct range to yield $\gamma \gamma$ and $\gamma Z$ emission lines at $m_{\chi }\sim 133$ GeV and $m_{\chi }\sim 145$ GeV, respectively. Additionally, we elucidate the emerging empirical connection between recent Planck satellite data and No-Scale Supergravity cosmological models which mimic the Starobinsky model of inflation. Together, these experiments furnish rich alternate avenues for testing No-Scale $\mathcal{F}$-$SU(5)$, and similarly structured models, the results of which may lend independent credence to observations made at the LHC.

Journal of Physics G: Nuclear and Particle Physics Version, 12 pages, 1 figure, 2 tables

References in corpus (16)

• First results from the LUX dark matter experiment at the Sanford Underground Research Facility
• Dark Matter Results from 225 Live Days of XENON100 Data
• A Tentative Gamma-Ray Line from Dark Matter Annihilation at the Fermi Large Area Telescope
• Indirect search for dark matter with micrOMEGAs2.4
• Gamma Ray Signals from Dark Matter: Concepts, Status and Prospects
• Testable Flipped SU(5) x U(1)_X Models
• A No-Scale Framework for Sub-Planckian Physics
• The Golden Strip of Correlated Top Quark, Gaugino, and Vectorlike Mass In No-Scale, No-Parameter F-SU(5)
• The Golden Point of No-Scale and No-Parameter $\mathcal{F}$-SU(5)
• 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
• Correlating LHCb B_s^0 to μ^+ μ^- Results with the ATLAS-CMS Multijet Supersymmetry Search
• Testing No-Scale F-SU(5): A 125 GeV Higgs Boson and SUSY at the 8 TeV LHC
• A Multi-Axis Best Fit to the Collider Supersymmetry Search: The Aroma of Stops and Gluinos at the \sqrt{s} = 7 TeV LHC
• Chanel No5 (fb^-1): The Sweet Fragrance of SUSY
• Non-trivial Supersymmetry Correlations between ATLAS and CMS Observations
• Primordial Synthesis: F-SU(5) SUSY Multijets, 145-150 GeV LSP, Proton & Rare Decays, 125 GeV Higgs Boson, and WMAP7

Cited by in corpus (3)

• Resolving the $(g-2{)}_{\mu }$ Discrepancy with $\mathcal{F}$-$SU$(5) Intersecting D-branes
• Spinning No-Scale $\mathcal{F}$-$SU$(5) in the Right Direction
• Notes on Various Methods for Constructing Directed Strongly Regular Graphs