Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-04-21
JCAP 0906:023,2009
Physics
High Energy Physics
High Energy Physics - Phenomenology
accepted for publication in JCAP
Scientific paper
10.1088/1475-7516/2009/06/023
In order to accommodate increasingly tighter observational constraints on dark matter, several models have been proposed recently in which dark matter particles are charged under some hidden gauge group. Hidden gauge charges are invisible for the standard model particles, hence such scenarios are very difficult to constrain directly. However black holes are sensitive to all gauge charges, whether they belong to the standard model or not. Here, we examine the constraints on the possible values of the dark matter particle mass and hidden gauge charge from the evolution of primordial black holes. We find that the existence of the primordial black holes with reasonable mass is incompatible with dark matter particles whose charge to mass ratio is of the order of one. For dark matter particles whose charge to mass ratio is much less than one, we are able to exclude only heavy dark matter in the mass range of 10^(11) GeV - 10^(16) GeV. Finally, for dark matter particles whose charge to mass ratio is much greater than one, there are no useful limits coming from primordial black holes.
Dai De-Chang
Freese Katherine
Stojkovic Dejan
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