Dark photon bursts from compact binary systems and constraints

Abstract

In this work, we consider the burst signal of the dark photon, the hypothetical vector boson of the $U(1{)}_B$ or $U(1{)}_{B-L}$ gauge group, generated by a compact binary star system. The absence of the signal in the laser interferometer puts bounds on the coupling constant $\epsilon$ to the ordinary matter. It turns out that if the dark photon is massless, ${\epsilon }^2$ is on the order of $10^{-37}-10^{-33}$ at most; in the massive case, the upper bound of ${\epsilon }^2$ is about $10^{-38}-10^{-31}$ in the mass range from $10^{-19}$ eV to $10^{-11}$ eV. These are the first bounds derived from the interferometer observations independent of the assumption of dark photons being dark matter.

11 pages, 2 figures. Modified according to Referee's suggestions

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• Fundamental Physics and Cosmology with TianQin
• Electromagnetic Radiation from Binary Stars Mediated by Ultralight Scalar
• Gravitational and electromagnetic radiations from binary black holes with electric and magnetic charges