Plasmon-Enhanced Direct-Detection Method for Boosted Sub-MeV Dark Matter

Author(s): Zheng-Liang Liang, Liangliang Su, Lei Wu, and Bin Zhu A plasmon, a collective mode of electronic excitation in solid-state detectors, provides a novel way to detect light dark matter (DM). In this work, we present the conditions of DM to produce a plasmon resonance, requiring relativistic velocities for light DM, and generalize the collective excitatio… [Phys. Rev. Lett. 134, 071001] Published Tue Feb 18, 2025