Karlsruhe 2024 – scientific programme

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T: Fachverband Teilchenphysik

T 55: Methods in particle physics 4 (HCAL, jets)

T 55.7: Talk

Wednesday, March 6, 2024, 17:30–17:45, Geb. 20.30: 2.066

Studies of the SND@LHC HCAL SiPM PCB using dedicated laser measurements — •Andrew Conaboy, Heiko Lacker, Anupama Reghunath, and Eduard Ursov — Humboldt University of Berlin

The Scattering and Neutrino Detector at the LHC (SND@LHC) is a compact experiment installed 480 m from the ATLAS interaction point. SND@LHC allows for a novel investigation of all three neutrino flavours in the pseudo-rapidity range 7.2 < η < 8.6, with energies from 100 GeV to the TeV scale. Last year the SND@LHC collaboration published the observation of LHC muon-neutrino deep inelastic scattering (DIS) charged current interactions. The collaboration requires an energy calibration of the HCAL to reconstruct the energy deposition from the hadronic final states of DIS. This requirement necessitates dedicated laser studies in order to understand how effects such as timewalk and signal saturation impact the timing and charge digitisation of the SiPM PCB used in the HCAL of SND@LHC. Latest results from these laser studies are presented in this contribution.

Keywords: SiPMs