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arXiv · 2307.15760

Light Neutrinophilic Dark Matter from a Scotogenic Model

Johannes Herms·Sudip Jana·Vishnu P. K.·Shaikh Saad
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Abstract

We present a minimal sub-GeV thermal Dark Matter (DM) model where the DM primarily interacts with neutrinos and participates in neutrino mass generation through quantum loop corrections at one-loop level. We discuss the challenges in achieving this in the scotogenic framework and identify a viable variant. Due to minimality and the interplay between obtaining the correct DM relic abundance and neutrino oscillation data, the model predicts (i) a massless lightest neutrino, (ii) enhanced rate of $0\nu \beta \beta$ decay due to loop corrections involving light DM exchange, and (iii) testable lepton flavor-violating signal $\mu\to e\gamma$. Detecting monoenergetic neutrinos from DM annihilation in next-generation neutrino detectors offers a promising way to test this scenario.

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Johannes Herms, Sudip Jana, Vishnu P. K., Shaikh Saad. 2023-07-28. Light Neutrinophilic Dark Matter from a Scotogenic Model. https://doi.org/10.1016/j.physletb.2023.138167

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