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research article

Observation of Collider Neutrinos without Final State Muons with the SND@LHC Experiment

Abbaneo, D.
•
Ahmad, S.
•
Albanese, R.
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June 13, 2025
Physical Review Letters

We report the observation of neutrino interactions without final state muons at the LHC, with a significance of 6.4σ. A dataset of proton-proton collisions at s=13.6 TeV collected by SND@LHC in 2022 and 2023 is used, corresponding to an integrated luminosity of 68.6 fb−1. Neutrino interactions without a reconstructed muon are selected, resulting in an event sample consisting mainly of neutral-current and electron neutrino charged-current interactions in the detector. After selection cuts, 9 neutrino interaction candidate events are observed with an estimated background of 0.32 events. Published by the American Physical Society 2025

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10.1103_r2qy-9hft.pdf

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