Sharing but not caring: collider phenomenology

  • Nicolás BernalEmail author
  • Chee Sheng Fong
  • Alberto Tonero
Open Access
Regular Article - Experimental Physics


Based on a previous work on scenarios where the Standard Model and dark matter particles share a common asymmetry through effective operators at early time in the Universe and later on decouple from each other (not care), in this work, we study in detail the collider phenomenology of these scenarios. In particular, we use the experimental results from the Large Hadron Collider (LHC) to constrain the viable parameter space. Besides effective operators, we also constrain the parameter space of some representative ultraviolet complete models with experimental results from both the LHC and the Large Electron-Positron Collider. Specifically, we use measurements related to jets + missing transverse energy (MET), di-jets and photon + MET. In the case of ultraviolet models, depending on the assumptions on the couplings and masses of mediators, the derived constraints can become more or less stringent. We consider also the situation where one of the mediators has mass below 100 GeV, in this case we use the ultraviolet model to construct a new effective operator responsible for the sharing of the asymmetry and study its phenomenology.


Beyond Standard Model Dark matter Hadron-Hadron scattering (experiments) 


Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.


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Copyright information

© The Author(s) 2018

Authors and Affiliations

  1. 1.Centro de InvestigacionesUniversidad Antonio NariñoBogotáColombia
  2. 2.Instituto de FísicaUniversidade de São PauloSão PauloBrazil
  3. 3.Departamento de Física, Pontifícia Universidade Católica do Rio de JaneiroRio de JaneiroBrazil
  4. 4.UNIFAL-MGPoços de CaldasBrazil
  5. 5.Ottawa-Carleton, Institute for PhysicsCarleton UniversityOttawaCanada

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