Dark photon bursts from compact binary systems and constraints


In this work, we consider the burst signal of the dark photon, the hypothetical vector boson of the U_B or U_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 ϵ to the ordinary matter. It turns out that if the dark photon is massless, ϵ^2 is at the order of 10^-37–10^-33 at most; in the massive case, the upper bound of ϵ^2 is about 10^-38–10^-31 in the mass range from 10^-19 to 10^-11 eV. These are the first bounds derived from the interferometer observations independent of the assumption of dark photons being dark matter.

Shaoqi Hou 侯绍齐 (@WHU)
Online Zoom meeting ID: 822 8287 7472 , Passcode: astroPKU , Link: https://us02web.zoom.us/j/82282877472?pwd=VXFOYmtaRUhZMVplYWp1OFQ4OGsvQT09
Monday, June 13, 2022 - 1:30PM to Monday, June 13, 2022 - 2:30PM