Observation of collider neutrinos without final state muons with the SND@LHC experiment

We report the observation of neutrino interactions without final state muons at the LHC, with a significance of 6.4\( \sigma\). A data set of proton-proton collisions at \(\sqrt{s}= 13.6\) TeV collected by SND@LHC in 2022 and 2023 is used, corresponding to an integrated luminosity of 68.6 fb\(^{-1}\...

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Bibliographic Details
Published in:arXiv.org 2024-11
Main Author: SND@LHC Collaboration
Format: Article
Language:English
Subjects:
Large Hadron Collider
Luminosity
Muons
Neutrinos
Protons
Online Access:Get full text
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Summary:We report the observation of neutrino interactions without final state muons at the LHC, with a significance of 6.4\( \sigma\). A data set of proton-proton collisions at \(\sqrt{s}= 13.6\) 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.
ISSN:2331-8422