Effective Theory for Dark Matter and a New Force in the Dark Matter Sector

Abstract

An effective theory for dark matter has recently been proposed. The key assumption is that the dark matter particle which is a Dirac fermion is protected from decaying by a global U(1) symmetry. We point out that quantum gravity effects will violate this symmetry and that the dark matter candidate thus decays very fast. In order to solve that problem, we propose to consider a local gauge symmetry which implies a new force in the dark matter sector. It is likely that this new local U(1) symmetry will need to be spontaneously broken leading for a range of the parameters of the model to a Sommerfeld enhancement of the annihilation cross-sections which is useful to explain the Pamela and ATIC results using a weakly interacting massive particle with a mass in the TeV range.

arXiv comment6 pages

References in corpus (20)

• Observation of an anomalous positron abundance in the cosmic radiation
• A Theory of Dark Matter
• Gauge Singlet Scalars as Cold Dark Matter
• First Results from the XENON10 Dark Matter Experiment at the Gran Sasso National Laboratory
• Solutions to the strong CP problem in a world with gravity
• A Search for WIMPs with the First Five-Tower Data from CDMS
• Dark Matter and Dark Radiation
• Hidden vector dark matter
• LHC Signals for a SuperUnified Theory of Dark Matter
• A Stueckelberg Extension of the Standard Model
• Massless Gauge Bosons other than the Photon
• Laser experiments explore the hidden sector
• Microwave Background Constraints on Mixing of Photons with Hidden Photons
• The minimal model of fermionic dark matter
• An Effective Theory of Dirac Dark Matter
• Probing Hidden Sector Photons through the Higgs Window
• A New Force in the Dark Sector?
• Dark matter and sub-GeV hidden U(1) in GMSB models
• A Seesaw Mechanism in the Higgs Sector
• Softening the Naturalness Problem

Cited by in corpus (13)

• $e^{\pm }$ Excesses in the Cosmic Ray Spectrum and Possible Interpretations
• Radio and gamma-ray constraints on dark matter annihilation in the Galactic center
• Gravitational lens effect of a holonomy corrected Schwarzschild black hole
• Excursion into Quantum Gravity via Inflation
• Absolute electron and positron fluxes from PAMELA/Fermi and Dark Matter
• Theoretical bounds on dark matter masses
• Hidden Sector and Gravity
• New results by low momentum approximation from relativistic quantum mechanics equations and suggestion of experiments
• Extracting the size of the cosmic electron-positron anomaly
• A Systematic Effective Operator Analysis of Semi-Annihilating Dark Matter
• An alternative view on the electroweak interactions
• Gravitational lensing in holonomy corrected spherically symmetric black holes with phantom global monopoles
• Implications of Quantum Gravity for Dark Matter