Planck-scale effects on WIMP dark matter

Abstract

There exists a widely known conjecture that gravitational effects violate global symmetries. We study the effect of global-symmetry violating higher-dimension operators induced by Planck-scale physics on the properties of WIMP dark matter. Using an effective description, we show that the lifetime of the WIMP dark matter candidate can satisfy cosmological bounds under reasonable assumptions regarding the strength of the dimension-five operators. On the other hand, the indirect WIMP dark matter detection signal is significantly enhanced due to new decay channels.

12 pages, 4 figures. Version accepted for publication in Frontiers

References in corpus (24)

• 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
• First results from the LUX dark matter experiment at the Sanford Underground Research Facility
• Dark Matter Results from 225 Live Days of XENON100 Data
• Gauge Singlet Scalars as Cold Dark Matter
• First results from DAMA/LIBRA and the combined results with DAMA/NaI
• Symmetries and Strings in Field Theory and Gravity
• Results from a Search for Light-Mass Dark Matter with a P-type Point Contact Germanium Detector
• Results from 730 kg days of the CRESST-II Dark Matter Search
• micrOMEGAs2.0: a program to calculate the relic density of dark matter in a generic model
• Constraining Dark Matter Models from a Combined Analysis of Milky Way Satellites with the Fermi Large Area Telescope
• Results from a Low-Energy Analysis of the CDMS II Germanium Data
• A Tentative Gamma-Ray Line from Dark Matter Annihilation at the Fermi Large Area Telescope
• Decaying Dark Matter can explain the electron/positron excesses
• Singlet-Doublet Dark Matter
• Decaying warm dark matter and neutrino masses
• Probing Dark Matter Decay and Annihilation with Fermi LAT Observations of Nearby Galaxy Clusters
• Probing the stability of superheavy dark matter particles with high-energy neutrinos
• A dark matter interpretation for the ARCADE excess?
• Cosmic Rays from Leptophilic Dark Matter Decay via Kinetic Mixing
• Updated CMB, X- and gamma-ray constraints on majoron dark matter
• Gravitino dark matter and neutrino masses with bilinear R-parity violation
• Complementarity of Indirect and Accelerator Dark Matter Searches
• Decaying neutralino dark matter in anomalous $U(1{)}_H$ models

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• Dark Matter from the vector of SO(10)
• Scotogenic R\nuMDM at Three-Loop Level
• Theoretical bounds on dark matter masses
• Thermal dark matter implies new physics not far above the weak scale
• Matter Parity Violating Dark Matter Decay in Minimal SO(10), Unification, Vacuum Stability and Verifiable Proton Decay