Speaker
Description
The ICARUS-T600 liquid argon time projection chamber (LArTPC) detector is taking data at shallow depth as the far detector of the Short Baseline Neutrino program at Fermilab, to search for a possible sterile neutrino signal at $\Delta m^{2} \approx 1~\text{eV}^{2}$ with the Booster (BNB) and Main Injector (NuMI) neutrino beams at $\sim 0.8 \ \text{GeV}$ and $\sim 2 \ \text{GeV}$ average energies respectively.
The ICARUS trigger system exploits the coincidence of the BNB and NuMI beams with scintillation light signals detected by 360 8" photo-multiplier tubes, and is based on a PMT-multiplicity within 6-m TPC regions along the beam direction, where tpyical neutrino interactions are expected to be contained.
The trigger efficiency measurement leverages cosmic ray minimum-bias data, collected without imposing any scintillation light requirement, and the timing from an external cosmic ray tagger system.
The efficiency measured with stopping muons saturates at $E_{\mu} \approx 300 ~ \text{MeV}$, covering most of the BNB and NuMI charged-current neutrino interactions.
For the latest ICARUS run, special adder boards, performing the analog sum of light signals, were introduced as a complementary trigger to possibly recover low-energy neutrino interactions.
Finally, the ns-scale timing resolution on the interaction times allows to reconstruct the bunched structures of the BNB and NuMI beams, with the aim of introducing an off-line time-based trigger to cut cosmogenic background in-between beam bunches.
Details
Riccardo Triozzi, University of Padova & INFN Padova, Italy, https://www.pd.infn.it/it/
| Internet talk | No |
|---|---|
| Is this an abstract from experimental collaboration? | Yes |
| Name of experiment and experimental site | ICARUS |
| Is the speaker for that presentation defined? | Yes |
