Signatures of top flavour-changing dark matter

  • Jorgen D’Hondt
  • Alberto Mariotti
  • Kentarou Mawatari
  • Seth Moortgat
  • Pantelis Tziveloglou
  • Gerrit Van Onsem
Open Access
Regular Article - Theoretical Physics

DOI: 10.1007/JHEP03(2016)060

Cite this article as:
D’Hondt, J., Mariotti, A., Mawatari, K. et al. J. High Energ. Phys. (2016) 2016: 60. doi:10.1007/JHEP03(2016)060

Abstract

We develop the phenomenology of scenarios in which a dark matter candidate interacts with a top quark through flavour-changing couplings, employing a simplified dark matter model with an s-channel vector-like mediator. We study in detail the top-charm flavour-changing interaction, by investigating the single top plus large missing energy signature at the LHC as well as constraints from the relic density and direct and indirect dark matter detection experiments. We present strategies to distinguish between the top-charm and top-up flavour-changing models by taking advantage of the lepton charge asymmetry as well as by using charm-tagging techniques on an extra jet. We also show the complementarity between the LHC and canonical dark matter experiments in exploring the viable parameter space of the models.

Keywords

Beyond Standard Model Cosmology of Theories beyond the SM 

Copyright information

© The Author(s) 2016

Authors and Affiliations

  • Jorgen D’Hondt
    • 1
  • Alberto Mariotti
    • 1
  • Kentarou Mawatari
    • 1
    • 2
  • Seth Moortgat
    • 1
  • Pantelis Tziveloglou
    • 1
  • Gerrit Van Onsem
    • 1
    • 3
  1. 1.Theoretische Natuurkunde and IIHE/ELEM, Vrije Universiteit Brussel, International Solvay InstitutesBrusselsBelgium
  2. 2.Laboratoire de Physique Subatomique et de Cosmologie, Université Grenoble-Alpes, CNRS/IN2P3GrenobleFrance
  3. 3.DESYHamburgGermany

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