collaborators

5 papers

hep-ph2026

Higgsino Dark Matter Interpretation of the LUX-ZEPLIN 248 keV Nuclear-Recoil Event

Katherine Freese, Dionysios P. Theodosopoulos

We propose Higgsino dark matter as a potential interpretation of the nuclear-recoil event of interest reported by the LUX-ZEPLIN (LZ) experiment. LZ studied seve…

astro-ph.CO2026

Paleo-Detectors as a Novel Probe of Dark Matter-Nucleus Effective Interactions

Dionysios P. Theodosopoulos

Paleo-detectors are a proposed approach to the direct detection of dark matter (DM) based on the observation of DM-induced nuclear recoils. Rather than relying on large detector ma…

astro-ph.CO2026

Reconstructing Dark Matter Mass and Discriminating Standard and Non-Standard WIMP-Nucleus Interactions with Paleo-Detectors

Dionysios P. Theodosopoulos, Katherine Freese, Chris Kelso +1

Paleo-detectors record and retain crystal damage in ancient minerals from nuclear recoils induced by dark matter scattering over geological timescales. Previous studies have shown…

hep-th2026

Self-Gravitating Magnetic Monopoles and Dyons in String-Inspired Models: Structure and Stability

Nick E. Mavromatos, Sarben Sarkar, Dionysios P. Theodosopoulos

We present classical magnetic--monopole (MM) and dyon solutions induced by global monopoles in string-inspired gravitational models. Although several ingredients of the constructio…

astro-ph.CO2026

Projected Sensitivity of Paleo-Detectors to Dark Matter Effective Interactions with Nuclei

Dionysios P. Theodosopoulos, Katherine Freese, Chris Kelso +1

Paleo-detectors are a proposed experimental technique for direct detection (DD) of dark matter (DM) via the read-out of DM-induced nuclear recoil tracks in natural minerals. The la…