Light dark matter: Models and constraints

Simon Knapen, Tongyan Lin, and Kathryn M. Zurek
Phys. Rev. D 96, 115021 – Published 26 December 2017

Abstract

We study the direct detection prospects for a representative set of simplified models of sub-GeV dark matter (DM), accounting for existing terrestrial, astrophysical and cosmological constraints. We focus on dark matter lighter than an MeV, where these constraints are most stringent, and find three scenarios with accessible direct detection cross sections: (i) DM interacting via an ultralight kinetically mixed dark photon, (ii) a DM subcomponent interacting with nucleons or electrons through a light scalar or vector mediator, and (iii) DM coupled with nucleons via a mediator heavier than 100keV.

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  • Received 30 October 2017

DOI:https://doi.org/10.1103/PhysRevD.96.115021

© 2017 American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
Particles & Fields

Authors & Affiliations

Simon Knapen1,2, Tongyan Lin1,2,3, and Kathryn M. Zurek1,2

  • 1Theory Group, Lawrence Berkeley National Laboratory, Berkeley, California 94709 USA
  • 2Berkeley Center for Theoretical Physics, University of California, Berkeley, California 94709 USA
  • 3Department of Physics, University of California, San Diego, California 92093, USA

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Issue

Vol. 96, Iss. 11 — 1 December 2017

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