Observation of collider muon neutrinos with the SND@LHC experiment

Abstract

We report the direct observation of muon neutrino interactions with the SND@LHC detector at the Large Hadron Collider. A data set of proton-proton collisions at $\sqrt{s}=13.6$TeV collected by SND@LHC in 2022 is used, corresponding to an integrated luminosity of 36.8${\mathrm{fb}}^{-1}$. The search is based on information from the active electronic components of the SND@LHC detector, which covers the pseudo-rapidity region of $7.2<\eta <8.4$, inaccessible to the other experiments at the collider. Muon neutrino candidates are identified through their charged-current interaction topology, with a track propagating through the entire length of the muon detector. After selection cuts, 8 ${\nu }_{\mu }$ interaction candidate events remain with an estimated background of 0.076 events, yielding a significance of seven standard deviations for the observed ${\nu }_{\mu }$ signal.

Submitted to Phys. Rev. Lett

References in corpus (4)

• PYTHIA 6.4 Physics and Manual
• Luminosity determination in pp collisions at $\sqrt{s}$ = 8 TeV using the ATLAS detector at the LHC
• First Direct Observation of Collider Neutrinos with FASER at the LHC
• New physics with ultra-high-energy neutrinos

Cited by in corpus (20)

• First Measurement of the ${\nu }_e$ and ${\nu }_{\mu }$ Interaction Cross Sections at the LHC with FASER's Emulsion Detector
• Investigating the fluxes and physics potential of LHC neutrino experiments
• First Measurement of the Muon Neutrino Interaction Cross Section and Flux as a Function of Energy at the LHC with FASER
• Forward Neutrinos from Charm at Large Hadron Collider
• Discovering neutrino tridents at the Large Hadron Collider
• Sibyll${}^{★}$
• Theoretical and Experimental Challenges in the Measurement of Neutrino Mass
• A Phenomenological Analysis of LHC Neutrino Scattering at NLO Accuracy Matched to Parton Showers
• Neutrino Experiments at the Large Hadron Collider
• Final state radiation from high and ultrahigh energy neutrino interactions
• The LHC as a TeV Muon Beam Dump: Muonphilic Scalars at FASER
• Deep-Inelastic Scattering at TeV Energies with LHC Muons
• Installation and performance of the 3rd Veto plane at the SND@LHC detector
• Neutrino-Portal Dark Matter Detection Prospects at a Future Muon Collider
• Tau polarization effects in ${\nu }_{\tau }/{\bar{\nu }}_{\tau }$-tungsten interactions at the LHC energies
• A roadmap for neutrino detection at LHC, HL-LHC and SPS
• New determination of the neutrino hadronic production cross sections from GeV to beyond PeV energies
• Letter of Intent: The Forward Physics Facility
• Muon trident process at far-forward LHC detectors
• Forward neutrino production and event rates at the Future Circular Collider for hadron collisions