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arXiv · 2407.02729

Neutrino Lorentz invariance violation and ultralight axion-like dark matter searches at the European Spallation Source

Rubén Cordero·Luis A. Delgadillo
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Abstract

The dark matter conundrum stands out as one of the central challenges to understand in both particle physics and cosmology. The ultralight axion-like particle (UALP) is an appealing dark matter candidate that can be searched for in neutrino oscillation experiments. In this work, we examine the interaction among neutrinos and a UALP; such interaction might induce violations of the Lorentz and $CPT$ symmetries. We assess the sensitivity to both the isotropic $CPT-$odd Standard Model Extension (SME) coefficients $(a_L)^T$ and effective neutrino-UALP couplings $\tilde{g}$ at the next-to-next generation neutrino oscillation experiment at the European Spallation Source (ESS).

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Rubén Cordero, Luis A. Delgadillo. 2024-07-03. Neutrino Lorentz invariance violation and ultralight axion-like dark matter searches at the European Spallation Source. https://arxiv.org/abs/2407.02729

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