Does dark matter consist of baryons of new stable family quarks?

G. Bregar and N. S. Mankoč Borštnik
Phys. Rev. D 80, 083534 – Published 30 October 2009

Abstract

We investigate the possibility that the dark matter consists of clusters of the heavy family quarks and leptons with zero Yukawa couplings to the lower families. Such a family is predicted by the approach unifying spin and charges as the fifth family. We make a rough estimation of properties of baryons of these new family members, of their behavior during the evolution of the Universe and when scattering on the ordinary matter, and study possible limitations on the family properties due to the cosmological and direct experimental evidences.

  • Figure
  • Received 14 November 2008

DOI:https://doi.org/10.1103/PhysRevD.80.083534

©2009 American Physical Society

Authors & Affiliations

G. Bregar and N. S. Mankoč Borštnik

  • Department of Physics, FMF, University of Ljubljana, Jadranska 19, 1000 Ljubljana, Slovenia

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Issue

Vol. 80, Iss. 8 — 15 October 2009

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