Speaker
Description
FASER, operating at the CERN-LHC throughout Run 3, has a dedicated high-energy neutrino physics programme using a 1.1-tonne tungsten target. The FASER$\nu$ detector, composed of interleaved emulsion films and tungsten plates, is designed for neutrino interaction measurements. Using a sub-sample of 2022 data, the first electron neutrinos at the LHC have been observed, and cross-sections in the TeV regime for both electron and muon neutrinos were measured. To improve future results, incident neutrino energy must be reconstructed from topological and kinematic variables of charged final state particles. Different Machine Learning techniques are investigated for this purpose. Recent FASER results and the development of neutrino energy reconstruction methods will be presented.
