Superheavy Dark Matter with Discrete Gauge Symmetries

Abstract

We show that there are discrete gauge symmetries protect naturally heavy X particles from decaying into the ordinary light particles in the supersymmetric standard model. This makes the proposal very attractive that the superheavy X particles constitute a part of the dark matter in the present universe. It is more interesting that there are a class of discrete gauge symmetries which naturally accommodate a long-lived unstable X particle. We find that in some discrete Z_{10} models, for example, a superheavy X particle has lifetime τ_X \simeq 10^{11}-10^{26} years for its mass M_X \simeq 10^{13}-10^{14} GeV. This long lifetime is guaranteed by the absence of lower dimensional operators (of light particles) couple to the X. We briefly discuss a possible explanation for the recently observed ultra-high-energy cosmic ray events by the decay of this unstable X particle.

arXiv comment9 pages, Latex

References in corpus (3)

• Ultra-high energy cosmic rays without GZK cutoff
• More About Discrete Gauge Anomalies
• Natural gauge-coupling unification at the string scale

Cited by in corpus (42)

• On the gravitational production of superheavy dark matter
• What is the Discrete Gauge Symmetry of the MSSM?
• Matter Creation via Vacuum Fluctuations in the Early Universe and Observed Ultra-High Energy Cosmic Ray Events
• Ultra-High-Energy Cosmic Rays
• The high energy cosmic ray spectrum from relic particle decay
• Astrophysical Origins of Ultrahigh Energy Cosmic Rays
• Ultrahigh Energy Cosmic Rays: The state of the art before the Auger Observatory
• Superheavy dark matter and IceCube neutrino signals:bounds on decaying dark matter
• Constraining Very Heavy Dark Matter Using Diffuse Backgrounds of Neutrinos and Cascaded Gamma Rays
• Classical inflaton field induced creation of superheavy dark matter
• Fragmentation functions in SUSY QCD and UHECR spectra produced in top-down models
• Isocurvature constraints on gravitationally produced superheavy dark matter
• Detailed analysis of the decay spectrum of a super-heavy X particle
• Dark matter within the minimal flavour violation ansatz
• Late Decaying Dark Matter, Bulk Viscosity and the Cosmic Acceleration
• On the status of superheavy dark matter
• Long Lived Superheavy Dark Matter with Discrete Gauge Symmetries
• Anisotropy of Ultra High Energy Cosmic Rays in the Dark Matter Halo Model
• IceHEP High Energy Physics at the South Pole
• Long-Lived Superheavy Particles in Dynamical Supersymmetry-Breaking Models in Supergravity
• Neutrino masses and superheavy dark matter in the 3-3-1-1 model
• Proton Hexality in Local Grand Unification
• Dark Matter from the vector of SO(10)
• Probing the Desert with Ultra--Energetic Neutrinos from the Sun and the Earth
• Primordial bound systems of superheavy particles as the source of ultra-high energy cosmic rays
• Supersymmetric superheavy dark matter
• SUSY In The Sky: Observing Ultra-High Energy Cosmic Neutralinos
• Searching the Footprint of WIMPZILLAs
• Relic Neutrinos and Z-Resonance Mechanism for Highest-Energy Cosmic Rays
• Computation of Gravitational Particle Production Using Adiabatic Invariants
• Ultra-high energy cosmic rays, cosmological constant, and $\theta$-vacua
• UHECR as Decay Products of Heavy Relics? The Lifetime Problem
• Matter Parity Violating Dark Matter Decay in Minimal SO(10), Unification, Vacuum Stability and Verifiable Proton Decay
• Ultra High Energy Cosmic Ray, Superheavy Dark Matter and Extra Dimension
• Superheavy Dark Matter and Thermal Inflation
• The Passage of Ultrarelativistic Neutralinos through Matter
• Gauged Inflation
• Super-heavy X particle decay and Ultra-High Energy Cosmic Rays
• A Model for the Effective Potential of Thermalized Pure SU(Large N) Gauge Theory
• Solutions to large B and L breaking in the Randall-Sundrum model
• Signals of Very High Energy Neutralinos in Future Cosmic Ray Detectors
• Ultra High Energy Cosmic Rays from decays of Holeums in Galactic Halos