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SIMP spectroscopy

  • Yonit Hochberg
  • Eric Kuflik
  • Hitoshi Murayama
Open Access
Regular Article - Theoretical Physics

Abstract

We study the interactions between strongly interacting massive particle dark matter and the Standard Model via a massive vector boson that is kinetically mixed with the hypercharge gauge boson. The relic abundance is set by 3 → 2 self-interactions of the dark matter, while the interactions with the vector mediator enable kinetic equilibrium between the dark and visible sectors. We show that a wide range of parameters is phenomenologically viable and can be probed in various ways. Astrophysical and cosmological constraints are evaded due to the p-wave nature of dark matter annihilation into visible particles, while direct detection methods using electron recoils can be sensitive to parts of the parameter space. In addition, we propose performing spectroscopy of the strongly coupled dark sector at e + e colliders, where the energy of a mono-photon can track the resonance structure of the dark sector. Alternatively, some resonances may decay back into Standard Model leptons or jets, realizing ‘hidden valley’ phenomenology at the LHC and ILC in a concrete fashion.

Keywords

Beyond Standard Model Cosmology of Theories beyond the SM Chiral Lagrangians 

Notes

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) 2016

Authors and Affiliations

  • Yonit Hochberg
    • 1
    • 2
  • Eric Kuflik
    • 3
  • Hitoshi Murayama
    • 1
    • 2
    • 4
    • 5
  1. 1.Ernest Orlando Lawrence Berkeley National LaboratoryUniversity of CaliforniaBerkeleyU.S.A.
  2. 2.Department of PhysicsUniversity of CaliforniaBerkeleyU.S.A.
  3. 3.Department of PhysicsLEPP, Cornell UniversityIthacaU.S.A.
  4. 4.Kavli Institute for the Physics and Mathematics of the Universe (WPI)University of Tokyo Institutes for Advanced Study, University of TokyoKashiwaJapan
  5. 5.Center for Japanese StudiesUniversity of CaliforniaBerkeleyU.S.A.

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