Lepton-Flavored Dark Matter
arXiv:1411.1407 · doi:10.1016/j.physletb.2015.04.005
Abstract
In this work, we address two paradoxes. The first is that the measured dark-matter relic density can be satisfied with new physics at O(100 GeV - 1 TeV), while the null results from direct-detection experiments place lower bounds of O(10 TeV) on a new-physics scale. The second puzzle is that the severe suppression of lepton-flavor-violating processes involving electrons, e.g. mu->3e, tau->e mu mu, etc., implies that generic new-physics contributions to lepton interactions cannot exist below O(10 - 100 TeV), whereas the 3.6sigma deviation of the muon g-2 from the standard model can be explained by a new-physics scale < O(1 TeV). Here, we suggest that it may not be a coincidence that both the muon g-2 and the relic density can be satisfied by a new-physics scale < 1 TeV. We consider the possibility of a gauged lepton-flavor interaction that couples at tree level only to mu- and tau-flavored leptons and the dark sector. Dark matter thus interacts appreciably only with particles of mu and tau flavor at tree level and has loop-suppressed couplings to quarks and electrons. Remarkably, if such a gauged flavor interaction exists at a scale O(100 GeV - 1 TeV), it allows for a consistent phenomenological framework, compatible with the muon g-2, the relic density, direct detection, indirect detection, charged-lepton decays, neutrino trident production, and results from hadron and e+e- colliders. We suggest experimental tests for these ideas at colliders and for low-energy observables.
includes additional discussions, results unchanged
References in corpus (17)
- Big-Bang Nucleosynthesis
- Precise Relic WIMP Abundance and its Impact on Searches for Dark Matter Annihilation
- LEP Shines Light on Dark Matter
- Constraints on Dark Matter annihilations from reionization and heating of the intergalactic gas
- Dark Matter: The Leptonic Connection
- Cosmic rays from Leptonic Dark Matter
- Search for narrow resonances in dilepton mass spectra in pp collisions at sqrt(s) = 7 TeV
- Cosmic Rays from Leptophilic Dark Matter Decay via Kinetic Mixing
- Leptophilic Dark Matter with interactions
- Gamma Rays From The Galactic Center and the WMAP Haze
- Supersymmetric U(1)B x U(1)L model with leptophilic and leptophobic cold dark matters
- AMEND: A Model Explaining Neutrino masses and Dark matter testable at the LHC and MEG
- Universally Leptophilic Dark Matter From Non-Abelian Discrete Symmetry
- Pure Leptonic Gauge Symmetry, Neutrino Masses and Dark Matter
- PAMELA/ATIC anomaly from the meta-stable extra dark matter component and the leptophilic Yukawa interaction
- Natural model with an inverse seesaw and leptonic dark matter
- Dark Matter with Time-Varying Leptophilic Couplings