A keV String Axion from High Scale Supersymmetry
arXiv:1408.0286 · doi:10.1103/PhysRevD.91.045036
Abstract
Various theoretical and experimental considerations motivate models with high scale supersymmetry breaking. While such models may be difficult to test in colliders, we propose looking for signatures at much lower energies. We show that a keV line in the X-ray spectrum of galaxy clusters (such as the recently disputed 3.5 keV observation) can have its origin in a universal string axion coupled to a hidden supersymmetry breaking sector. A linear combination of the string axion and an additional axion in the hidden sector remains light, obtaining a mass of order 10 keV through supersymmetry breaking dynamics. In order to explain the X-ray line, the scale of supersymmetry breaking must be about GeV. This motivates high scale supersymmetry as in pure gravity mediation or minimal split supersymmetry and is consistent with all current limits. Since the axion mass is controlled by a dynamical mass scale, this mass can be much higher during inflation, avoiding isocurvature (and domain wall) problems associated with high scale inflation. In an appendix we present a mechanism for dilaton stabilization that additionally leads to modifications of the gaugino mass from anomaly mediation.
12 pages with 2 appendices; v2: updates to emphasize general results, other minor updates, matches published version
References in corpus (47)
- Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
- Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
- de Sitter Vacua in String Theory
- BICEP2 I: Detection Of B-mode Polarization at Degree Angular Scales
- Axions In String Theory
- Gaugino Mass without Singlets
- Planck 2013 results. XXII. Constraints on inflation
- New Tools for Low Energy Dynamical Supersymmetry Breaking
- Symmetries and Strings in Field Theory and Gravity
- Detection of An Unidentified Emission Line in the Stacked X-ray spectrum of Galaxy Clusters
- Exact Results on the Space of Vacua of Four Dimensional SUSY Gauge Theories
- An unidentified line in X-ray spectra of the Andromeda galaxy and Perseus galaxy cluster
- Natural Chaotic Inflation in Supergravity
- Sterile neutrinos: the dark side of the light fermions
- Search for squarks and gluinos with the ATLAS detector in final states with jets and missing transverse momentum using TeV proton--proton collision data
- PeV-Scale Supersymmetry
- Toward an Understanding of Foreground Emission in the BICEP2 Region
- The Lightest Higgs Boson Mass in Pure Gravity Mediation Model
- Dynamical Supersymmetry Breaking in Vector-like Gauge Theories
- Dynamical Supersymmetry Breaking on Quantum Moduli Spaces
- In Wino Veritas? Indirect Searches Shed Light on Neutralino Dark Matter
- Cosmology of Supersymmetric Models with Low-energy Gauge Mediation
- Counting 4 pi 's in Strongly Coupled Supersymmetry
- Pure Gravity Mediation with m_{3/2} = 10-100TeV
- Wino Dark Matter Under Siege
- Possible Signals of Wino LSP at the Large Hadron Collider
- Search for charginos nearly mass-degenerate with the lightest neutralino based on a disappearing-track signature in pp collisions at sqrt(s) = 8 TeV with the ATLAS detector
- Simply Unnatural Supersymmetry
- Naive Dimensional Analysis and Supersymmetry
- The Poker Face of the Majoron Dark Matter Model: LUX to keV Line
- Constraints on 3.55 keV line emission from stacked observations of dwarf spheroidal galaxies
- A 3.55 keV hint for decaying axion-like particle dark matter
- Relaxing the Cosmological Moduli Problem
- The 7 keV axion dark matter and the X-ray line signal
- Strong moduli stabilization and phenomenology
- Cosmological Moduli Problem in Gauge-mediated Supersymmetry Breaking Theories
- Constraint on Cosmic Density of the String Moduli Field in Gauge-Mediated Supersymmetry-Breaking Theories
- Natural Inflation in Supergravity and Beyond
- Wino Dark Matter and Future dSph Observations
- Moduli dark matter and the search for its decay line using Suzaku X-ray telescope
- Cosmological Constraint on the String Dilaton in Gauge-mediated Supersymmetry Breaking Theories
- Calculable Dynamical Supersymmetry Breaking on Deformed Moduli Spaces
- Cluster X-ray line at from axion-like dark matter
- Notes on natural inflation
- Monodromy Inflation in SUSY QCD
- Gravity mediation without a Polonyi problem
- Testing the Minimal Direct Gauge Mediation at the LHC
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- A 3.55 keV line from : predictions for cool-core and non-cool-core clusters
- eXTP perspectives for the MSM sterile neutrino dark matter model
- Displaced Vertices from X-ray Lines
- A Couplet from Flavored Dark Matter
- Observational consistency and future predictions for a 3.5 keV ALP to photon line
- Structure formation in a mixed dark matter model with decaying sterile neutrino: the 3.5 keV X-ray line and the Galactic substructure
- R-symmetric Axion/Natural Inflation in Supergravity via Deformed Moduli Dynamics
- New emission line at ~3.5 keV - observational status, connection with radiatively decaying dark matter and directions for future studies