Signatures of Majorana dark matter with t-channel mediators

  title={Signatures of Majorana dark matter with t-channel mediators},
  author={Mathias Garny and Alejandro Ibarra and S. Vogl},
  journal={International Journal of Modern Physics D},
Three main strategies are being pursued to search for nongravitational dark matter signals: direct detection, indirect detection and collider searches. Interestingly, experiments have reached sensitivities in these three search strategies which may allow detection in the near future. In order to take full benefit of the wealth of experimental data, and in order to confirm a possible dark matter signal, it is necessary to specify the nature of the dark matter particle and of the mediator to the… 
Production and signatures of multi-flavour dark matter scenarios with t-channel mediators
We investigate the phenomenology of a dark matter scenario containing two generations of the dark matter particle, differing only by their mass and their couplings to the other particles, akin to the
Dark sequential Z′ portal: Collider and direct detection experiments
We revisit the status of a Majorana fermion as a dark matter candidate when a sequential Z' gauge boson dictates the dark matter phenomenology. Direct dark matter detection signatures rise from dark
Simplified dark matter models with charged mediators: prospects for direct detection
A bstractWe consider direct detection prospects for a class of simplified models of fermionic dark matter (DM) coupled to left and right-handed Standard Model fermions via two charged scalar
Top-philic dark matter within and beyond the WIMP paradigm
We present a comprehensive analysis of top-philic Majorana dark matter that interacts via a colored t-channel mediator. Despite the simplicity of the model -- introducing three parameters only -- it
Direct detection and LHC constraints on a t-channel simplified model of Majorana dark matter at one loop
A bstractAn interesting class of models posits that the dark matter is a Majorana fermion which interacts with a quark together with a colored scalar mediator. Such a theory can be tested in direct
The Pursuit of Dark Matter at Collider - An Overview
Dark matter is one of the main puzzles in fundamental physics and the goal of a diverse, multi-pronged research program. Underground and astrophysical searches search for dark matter particles in the
Collide and conquer: constraints on simplified dark matter models using mono-X collider searches
A bstractThe use of simplified models as a tool for interpreting dark matter collider searches has become increasingly prevalent, and while early Run II results are beginning to appear, we look to
A feeble window on leptophilic dark matter
Abstract In this paper we study a leptophilic dark matter scenario involving feeble dark matter coupling to the Standard Model (SM) and compressed dark matter-mediator mass spectrum. We consider a
Hunting for dark matter coannihilation by mixing dijet resonances and missing transverse energy
A bstractSimplified models of the dark matter (co)annihilation mechanism predict striking new collider signatures untested by current searches. These models, which were codified in the coannihilation
Leptonic WIMP coannihilation and the current dark matter search strategy
A bstractWe discuss the extent to which models of Weakly Interacting Massive Particle (WIMP) Dark Matter (DM) at and above the electroweak scale can be probed conclusively in future high energy and


Majorana dark matter with a coloured mediator: collider vs direct and indirect searches
A bstractWe investigate the signatures at the Large Hadron Collider of a minimal model where the dark matter particle is a Majorana fermion that couples to the Standard Model via one or several
Fermion portal dark matter
A bstractWe study a class of simplified dark matter models in which one dark matter particle couples with a mediator and a Standard Model fermion. In such models, collider and direct detection
On the importance of electroweak corrections for Majorana dark matter indirect detection
Recent analyses have shown that the inclusion of electroweak corrections can alter significantly the energy spectra of Standard Model particles originated from dark matter annihilations. We
Lepton Portal dark matter
A bstractWe study a class of simplified dark matter models in which dark matter couples directly with a mediator and a charged lepton. This class of Lepton Portal dark matter models has very rich
Closing in on mass-degenerate dark matter scenarios with antiprotons and direct detection
Over the last years both cosmic-ray antiproton measurements and direct dark matter searches have proved particularly effective in constraining the nature of dark matter candidates. The present work
Internal bremsstrahlung signatures in light of direct dark matter searches
Although proposed long ago, the search for internal bremsstrahlung signatures has only recently been made possible by the excellent energy resolution of ground-based and satellite-borne gamma-ray
Complementarity of direct dark matter detection and indirect detection through gamma-rays
We show, by using an extensive sample of viable supersymmetric models as templates, that indirect detection of dark matter through gamma rays may have a large potential for identifying the nature of
Robust collider limits on heavy-mediator Dark Matter
A bstractWe discuss how to consistently use Effective Field Theories (EFTs) to set universal bounds on heavy-mediator Dark Matter at colliders, without prejudice on the model underlying a given
Electroweak bremsstrahlung for wino-like Dark Matter annihilations
If the Dark Matter is the neutral Majorana component of a multiplet which is charged under the electroweak interactions of the Standard Model, its main annihilation channel is into W+W−, while the
Missing Energy Signatures of Dark Matter at the LHC
We use ATLAS and CMS searches in the mono-jet + missing energy and mono-photon + missing energy final state to set limits on the couplings of dark matter to quarks and gluons. Working in an effective