Kavli Affiliate: G. Ravichandran
| First 5 Authors: [#item_custom_name[1, [#item_custom_name[2, [#item_custom_name[3, [#item_custom_name[4, [#item_custom_name[5| Summary:Gravitational-wave detectors can probe the existence of dark matter with exquisite sensitivity. Here, we perform a search for three kinds of dark matter — dilatons (spin-0), dark photons (spin-1) and tensor bosons (spin-2) — using three independent methods on the first part of the most recent data from the fourth observing run of LIGO–Virgo–KAGRA. Each form of dark matter could have interacted with different standard-model particles in the instruments, causing unique differential strains on the interferometers. While we do not find any evidence for a signal, we place the most stringent upper limits to-date on each of these models. For scalars with masses between $[4times 10^-14,1.5times 10^-13]$ eV that couple to photons or electrons, our constraints improve upon those from the third observing run by one order of magnitude, with the tightest limit of $sim 10^-20,textGeV^-1$ at a mass of $sim2times 10^-13text eV$. For vectors with masses between $[7times 10^-13,8.47times 10^-12]$ eV that couple to baryons, our constraints supersede those from MICROSCOPE and Eöt-Wash by one to two orders of magnitude, reaching a minimum of $sim 5times 10^-24$ at a mass of $sim 10^-12$ eV. For tensors with masses of $[4times 10^-14,8.47times 10^-12]$ eV (the full mass range analyzed) that couple via a Yukawa interaction, our constraints surpass those from fifth-force experiments by four to five orders of magnitude, achieving a limit as low as $sim 8times 10^-9$ at $sim2times 10^-13$ eV. Our results show that gravitational-wave interferometers have become frontiers for new physics and laboratories for direct multi-model dark-matter detection.| Search Query: arXiv Query: search_query=au:Ravichandran OR all:Guruswami&id_list=&start=0&max_results=3Read More