Majorana dark matter cross sections with nucleons at high energies

Yu Seon Jeong, C. S. Kim, Mary Hall Reno

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Nonrelativistic dark matter scattering with nucleons is constrained by direct detection experiments. We use the XENON constraints on the spin-independent and spin-dependent cross section for dark matter scattering with nucleons to constrain a hypothetical Majorana fermionic dark matter particle's couplings to the Higgs boson and Z boson. In this paper, we illustrate the change in the dark matter nucleon cross section as one goes from nonrelativistic, coherent scattering to relativistic, incoherent scattering. While the Z invisible decay width excludes directly couplings of dark matter to ordinary matter, by introducing a light Z portal to the dark sector, a relatively large dark matter nucleon cross section can be preserved even with accelerator experiment constraints for dark matter with a mass of ∼10GeV.

Original languageEnglish
Article number094025
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume86
Issue number9
DOIs
Publication statusPublished - 2012 Nov 16

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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