Karlsruhe 2024 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 39: Detectors 4 (calorimeters)

T 39.2: Vortrag

Dienstag, 5. März 2024, 16:15–16:30, Geb. 30.23: 2/1

Energy calibration of the SND@LHC hadronic calorimeter — •Eduard Ursov, Andrew Conaboy, Heiko Lacker, and Anupama Reghunath — Humboldt University of Berlin, Berlin, Germany

SND@LHC (Scattering & Neutrino Detector at the LHC) is a compact and stand-alone experiment measuring neutrinos produced in proton-proton collisions at the LHC. The experiment aims to study all three neutrino flavours in the yet unexplored pseudo-rapidity region of 7.2 < η < 8.4, specifically electron neutrinos that are mainly coming from charmed hadron decays. In July 2023, the SND@LHC collaboration reported observation of 8 muon neutrino charged-current candidates with a significance of 6.8σ. To reconstruct the neutrino energy and filter out background from neutral hadrons that are produced from muons downstream of the detector, the energy calibration of the hadronic calorimeter is required. To calibrate the detector, a test beam experiment with 100-300 GeV pion beams has been performed and is compared to a corresponding Geant4-based simulation. The results of the test beam analysis and the simulation are presented in this work.

Keywords: Hadronic calorimeter; Hadronic shower; Neutrino registration