Neutron star observations of pseudoscalar-mediated dark matter
John Coffey,
David McKeen,
David E. Morrissey
et al.
Abstract:Scattering interactions between dark matter and Standard Model states mediated by pseudoscalars are generically challenging to uncover at direct detection experiments due to rates suppressed by powers of the local dark matter velocity vDM ∼ 10 −3 c. However, they may be observed in the dark matter-induced heating of neutron stars, whose steep gravitational potentials prevent such suppression by accelerating infalling particles to semi-relativistic speeds. We investigate this phenomenon in the context of two sp… Show more
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