Speaker
Description
The process of neutrino oscillation, where neutrinos created as one type (flavour) will be measured as another flavour after propagation with an oscillating probability, was confirmed by SNO in Canada and Super-Kamiokande in Japan approximately 25 years ago. Since then, experiments have gained increased reach and precision on the parameters involved. A new generation of experiments, led by the Deep Underground Neutrino Experiment (DUNE) in North America using a liquid argon detector and Hyper-Kamiokande in Japan using water Čerenkov detection, will aim to reach unprecedented sensitivity to CP violation in neutrinos and provide important results on several other parameters and processes. Meanwhile, a handful of other open questions remain related to neutrinos; for example could there be an additional “sterile” neutrino state participating in oscillations or other beyond Standard Model behaviour of neutrinos?
The Short Baseline Neutrino (SBN) Program at Fermilab near Chicago is an experimental program that will use the data from multiple detectors at a short distance from the neutrino beam origin in seeking to clarify this sterile neutrino possibility. Much like a typical two-detector oscillation measurement where a near and far detector are used to study the beam before and after oscillations, the SBN Program will use two detectors to gain sensitivity to short-baseline oscillatory effects or other beyond Standard Model signatures.
Specifically, the Short Baseline Near Detector (SBND) and Imaging Cosmic and Rare Underground Signals (ICARUS) detectors are operating at approximately 100 m and 600 m along a neutrino beamline with peak flux between several hundred MeV and approximately 1 GeV. ICARUS also operates approximately six degrees off-axis and 800 m away from a second neutrino beamline at Fermilab. Though significantly smaller than the DUNE far detectors, the SBN Program uses liquid argon detectors and provides key experience en route to DUNE. Likewise, in addition to oscillation searches, these detectors will collect neutrino interaction data on argon targets, enabling key measurements of neutrino interactions that will unlock the next generation of oscillation measurements. This talk will highlight the ICARUS detector, its experimental program, and recent results, highlighting a measurement of neutrino interactions and other analyses.
| Keyword-1 | Neutrino physics |
|---|---|
| Keyword-2 | Neutrino detector |
| Keyword-3 | Liquid argon TPC |