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hep-ph2025
Large Neutrino-Dark Matter Interactions: From Effective Field Theory to Ultraviolet Completions
K. S. Babu, P. S. Bhupal Dev, Anil Thapa
We develop a general effective field theory (EFT) framework for neutrino-dark matter (DM) interactions, and apply it to systematically find all possible gauge-invariant ultraviolet…
hep-ph2025
Decaying scalar dark matter in the minimal left-right symmetric model
P. S. Bhupal Dev, Julian Heeck, Anil Thapa
In the minimal left-right symmetric theory, the dark matter candidate is usually ascribed to the lightest right-handed neutrino. Here we present an alternative decaying dark matter…
hep-ph2025
Pseudo-Dirac Neutrinos and Relic Neutrino Matter Effect on the High-energy Neutrino Flavor Composition
P. S. Bhupal Dev, Pedro A. N. Machado, Ivan Martinez-Soler
We show that if neutrinos are pseudo-Dirac, they can potentially affect the flavor ratio predictions for the high-energy astrophysical neutrino flux observed by IceCube. In this co…