Lepton Flavor Violating decay and the τ→μμμ Search at the LHC

Open Access
Jaffe, Matthew Scott
Area of Honors:
Engineering Science
Bachelor of Science
Document Type:
Thesis Supervisors:
  • Jun Huang, Thesis Supervisor
  • Christine Masters, Honors Advisor
  • Judith A Todd, Faculty Reader
  • LHC
  • CERN
  • high energy physics
  • particle physics
  • flavor
  • decay
  • lepton
The Large Hadron Collider (LHC) is the largest, highest-energy particle accelerator ever constructed. It accelerates two counter-circulating proton beams around a 27 km ring, currently colliding them at center-of-mass energy √s = 8 TeV. Many searches for new physics and tests of the Standard Model (SM) of particle physics are being performed at the four detectors of the LHC. One of these detectors is the LHCb experiment, which seeks to catch glimpses of new physics through indirect means as a method of probing even higher energy scales. One candidate to yield such a glimpse is the observation of lepton flavor violating decays, such as the τ→μμμ decay. This thesis presents an analysis of the τ→μμμ decay; in particular, the effort to select the vanishingly rare candidate events from the overwhelming background.