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arXiv · 2004.10036

Constraint on Vector Coherent Oscillation Dark Matter with Kinetic Function

Kazunori Nakayama
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Abstract

A spatially uniform vector condensate can be formed during inflation if the vector boson is coupled to the inflaton through nontrivial kinetic function. The coherent oscillation of such a massive vector boson is a dark matter candidate. In this paper we consider the case where the vector boson energy density increases during inflation and show that the curvature/isocurvature perturbation gives stringent constraint on this scenario.

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Kazunori Nakayama. 2020-04-21. Constraint on Vector Coherent Oscillation Dark Matter with Kinetic Function. https://doi.org/10.1088/1475-7516/2020/08/033

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