Observation of collider muon neutrinos with the SND@LHC experiment
- Albanese, R. et al
- arXiv:2305.09383CERN-EP-2023-092
| Schematic layout of the SND@LHC detector front view (left) and side view (right). The side view includes an illustration of a $\nu_\mu$ charged-current interaction in the target with a hadronic shower sampled in the emulsion target, target trackers, and hadronic calorimeter, and a muon track visible in the muon system. |
| Display of a \neum CC candidate event. Hits in the SciFi, and hadronic calorimeter and muon system are shown as blue markers and black bars, respectively, and the line represents the reconstructed muon track. |
| Distribution of SciFi hits for candidate events, along with the expectation from the neutrino signal. The dashed line shows the background-only hypothesis scaled up to a deviation from the nominal expectation at a level of five standard deviations. The vertical bars represent 68.3\% confidence intervals of the Poisson means. |
| Energy spectrum of neutral hadrons produced by muon interactions in the rock and concrete entering the \SND acceptance. The shaded area shows the spectrum after rejecting events with hits in the veto detector. |