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arXiv · 2503.18112

New physics from atmosphere: light sgoldstino case

S. V. Demidov
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Abstract

In a supersymmetric model with low scale supersymmetry breaking light sgoldstinos can appear in decays of mesons abundantly produced in atmospheric showers. We obtain bounds on parameter space of such a scenario from the Super-Kamiokande atmospheric neutrino oscillation data and estimate future sensitivity of the Hyper-Kamiokande project. We find that the bounds from the Super-Kamiokande results are weaker than constraints from existing searches by other experiments while the Hyper-Kamiokande detector can probe a still allowed part of the model parameter space.

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S. V. Demidov. 2025-03-23. New physics from atmosphere: light sgoldstino case. https://arxiv.org/abs/2503.18112

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