Time : 2021/4/19 (Mon.) 12:30
Place : R517, New Physics Building, NTU
Abstract:

FASER is a new experiment to search for long-lived weakly-coupled particles and to measure interaction cross-sections of neutrinos that are produced in proton-proton collisions at the LHC. The detector will be installed 480 m downstream from the interaction point of the ATLAS experiment during 2021, aiming to collect physics data during Run 3 of the LHC. The LHC collisions produce an enormous flux of light mesons (MeV-GeV) in the forward direction and further decays to dark photons, Axion-like particle, heavy neutral leptons. FASER will be the first dedicated far-detector collider experiment for long-lived new particle searches. In addition, the LHC collisions also produce a copious number of neutrinos at uncharted energies. There are no existing neutrino cross-section measurements in this energy range (~TeV). In addition, the measurement will reduce systematic errors on the forward charm production rate and constrain the prompt atmospheric neutrino background for the extragalactic neutrino searches at IceCube. In this talk, the physics prospects for FASER as well as status of the detector construction and installation will be presented.

BioSktech:

Shih-Chieh Hsu is an associate professor in the Physics department at the University of Washington and a visiting associate professor in the Department of Physics National Tsinghua University. His research interests are in the field of experimental particle physics with a specific focus on searching for Beyond the Standard Model physics with the Large Hadron Collider (LHC) data. His major activities include dark matter searches with the ATLAS experiment, dark photon searches and neutrino cross-section measurements with the FASER experiment, high-speed FPGA read-out system for the ATLAS Pixel detector, and accelerated data-intensive algorithms with the Fast Machine Learning Lab. His specialized expertise include Machine Learning algorithms, High Performance Computing, and Coprocessor Applications.

Hsu received his Ph.D. degree (2003-2008) from the University of California San Diego after he earned a bachelor degree (1995-1999) and a master degree (2000) in National Taiwan University, all in Physics. He worked as a Chamberlain Fellow (2008–2012) at the Lawrence Berkeley National Laboratory and joined the faculty at the University of Washington in Fall 2012. He received an DOE Early Career Award (2016), UW Undergraduate Research Mentor Award (2015), and US ATLAS Scholarship (2014).