Dilaton-Assisted Dark Matter

Yang Bai, Marcela Carena, and Joseph Lykken
Phys. Rev. Lett. 103, 261803 – Published 30 December 2009

Abstract

A dilaton could be the dominant messenger between standard model fields and dark matter. The measured dark matter relic abundance relates the dark matter mass and spin to the conformal breaking scale. The dark matter-nucleon spin-independent cross section is predicted in terms of the dilaton mass. We compute the current constraints on the dilaton from LEP and Tevatron experiments, and the gamma-ray signal from dark matter annihilation to dilatons that could be observed by Fermi Large Area Telescope.

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  • Received 14 September 2009

DOI:https://doi.org/10.1103/PhysRevLett.103.261803

©2009 American Physical Society

Authors & Affiliations

Yang Bai1, Marcela Carena1,2, and Joseph Lykken1

  • 1Theoretical Physics Department, Fermilab, Batavia, Illinois 60510, USA
  • 2Enrico Fermi Institute, University of Chicago, 5640 Ellis Avenue, Chicago, Illinois 60637, USA

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Issue

Vol. 103, Iss. 26 — 31 December 2009

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