Looking forward with FASER

Speaker: 
David Casper
Institution: 
University of California, Irvine
Date: 
Thursday, January 9, 2025
Time: 
3:30 pm
Location: 
NS 1201

Abstract: The Large Hadron Collider (LHC) has led the search for new physics at the energy frontier for over a decade. Its flagship experiments, ATLAS and CMS, were designed to search for the Higgs boson and other phenomena with large transverse momentum to the beam, but are insensitive to particles produced the far-forward direction where the beams enter them. Initially conceived here at UCI, the Forward Search Experiment, FASER, was designed to complement the larger detectors by covering this blind-spot. Located along the collision axis, 480 meters downstream of ATLAS, FASER has operated successfully since the start of LHC Run 3 in July 2022. FASER searches for exotic, long-lived, weakly interacting particles that could help resolve the mystery of dark matter, and has already set world-leading limits on dark photons and axion-like particles. In addition, for the first time, FASER directly detected both electron and muon flavor neutrinos from the LHC (the highest-energy man-made neutrinos in the world), and measured their interaction cross sections. Upgrades to the detector are being completed during this winter’s accelerator downtime, and will improve its sensitivity for the final two years of Run 3.

Host: 
Daniel Whiteson