Speaker
Description
Dual-phase xenon time projection chambers achieve optimal sensitivity for 10-1000 GeV dark matter in the galactic halo, but sub-GeV dark matter particles lack sufficient energy to produce nuclear recoils above detection thresholds. However, relativistic blazar jets may accelerate sub-GeV dark matter particles in their host galaxy halo to energies detectable by liquid xenon dark matter detectors. We present a comprehensive blazar-boosted dark matter analysis using data from the XENON and LZ detectors, which have achieved some of the most sensitive dark matter direct detection limits. The results are interpreted with reference to blazar TXS 0506+056, the only blazar associated with detected high-energy neutrinos, which provides evidence of hadrons within the jet. We combine astrophysical modeling of the blazar jet with several dark matter density profiles and a detailed detector response analysis using the published XENON1T likelihood and extended energy range public LZ WIMP Search 2022 data for the first time, allowing us to incorporate the spectral shape information of the signal in a coherent manner.
| Main Contribution topic | Direct detection |
|---|---|
| Secondary contribution topic | Light Dark Matter |