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Arguelles, C. A. et al, & Barenboim, G. (2023). Snowmass white paper: beyond the standard model effects on neutrino flavor. Eur. Phys. J. C, 83(1), 15–57pp.
Abstract: Neutrinos are one of the most promising messengers for signals of new physics Beyond the Standard Model (BSM). On the theoretical side, their elusive nature, combined with their unknown mass mechanism, seems to indicate that the neutrino sector is indeed opening a window to new physics. On the experimental side, several long-standing anomalies have been reported in the past decades, providing a strong motivation to thoroughly test the standard three-neutrino oscillation paradigm. In this Snowmass21 white paper, we explore the potential of current and future neutrino experiments to explore BSM effects on neutrino flavor during the next decade.
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Garcia Soto, A., Garg, D., Reno, M. H., & Arguelles, C. A. (2023). Probing quantum gravity with elastic interactions of ultrahigh-energy neutrinos. Phys. Rev. D, 107(3), 033009–9pp.
Abstract: The next generation of radio telescopes will be sensitive to low-scale quantum gravity by measuring ultrahigh-energy neutrinos. In this work, we demonstrate for the first time that neutrino-nucleon soft interactions induced by TeV-scale gravity would significantly increase the number of events detected by the IceCube-Gen2 radio array in the EeV regime. However, we show that these experiments cannot measure the total cross section using only the angular and energy information of the neutrino flux, unless assumptions on the underlying inelasticity distribution of neutral interactions are made.
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