Author

M. Sen

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Preprint Sep 2026

A closer look at the LZ 248 keV event through the lens of cosmic-ray boosted dark matter

We investigate whether cosmic ray boosted dark matter (CRDM) can explain the 248 keV nuclear recoil event observed by the LUX-ZEPLIN (LZ) collaboration. We consider spin-dependent interactions, mediated by a pseudoscalar, and incorporate relativistic kinematics in CRDM production, propagation, and detection. We find th...

B. Chauhan, Soham Sahasrabuddhe, M. Sen · 12 citations

Preprint Jul 2026

Probing long-range $L_e-L_\mu$ forces with supernova neutronization burst neutrinos

Ultralight gauge bosons associated with flavour-dependent leptonic symmetries generate long-range potentials that can modify neutrino flavour evolution over astrophysical distances. We investigate the sensitivity of neutronization-burst neutrinos from core-collapse supernovae for such interactions in the anomaly-free $...

Amol Dighe, S. Sahoo, M. Sen · 1 citation