Speaker
Badal Bhalla
(University of Oklahoma)
Description
Binary inspirals can serve as probes of dark mediators, under the assumption that the spiraling objects are charged under a new long-range dark force. The range of mediator masses probed by the inspirals of astrophysical bodies spans O(10^-14)eV–O(10^-22)eV. The sensitivity of the spectroscopy in all cases depends on the strength of the dark coupling and the amount of dark charge. We calculate the sensitivity to mediator masses in the case of extreme mass ratio inspirals (EMRI) probed by LISA in the MHz frequency range. Due to the precision nature of EMRI measurements, we are able to better distinguish the effects of dark force from pure gravity.
Authors
Badal Bhalla
(University of Oklahoma)
Dr
Chen Sun
(Los Alamos Natl. Lab., Theor. Div.)
Huai-ke Guo
(ICTP-AP, Beijing)
Kuver Sinha
(University of Oklahoma)
Tao Xu
(The University of Oklahoma)
