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

2024/11/27 by LHC Collaboration · 1 citation
Physics and Astronomy · #Particle physics theoretical and experimental studies #Particle Detector Development and Performance #Dark Matter and Cosmic Phenomena

paper · pdf · doi:10.48550/arxiv.2411.18787

Abstract

We report the observation of neutrino interactions without final state muons at the LHC, with a significance of 6.4 σ. A data set 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.

Cited by

• Forward neutrino production and event rates at the Future Circular Collider for hadron collisions

Related

• Results from SND@LHC
• The Scattering and Neutrino Detector at the LHC
• Neutrino Physics at the LHC: Status and Prospects
• Non-Standard Neutrino Interactions at a Muon Collider Neutrino Detector
• Searching for neutrino self-interactions at future muon colliders