Gustaaf Brooijmans
Columbia University, Physics Department
Pupin 716, MC 5226
538 West 120th Street
New York , NY 10027
Tel:+1 212 854 4527


Falls: G6050 Particle Physics Phenomenology


I am currently primarily involved in ATLAS, one of the experiments at CERN's LHC (in Geneva, Switzerland). The Higgs boson discovery was a major step forward, and my focus is on the discovery of new physics, primarily using events in which top quarks are produced in the decays of new particles. I am also very interested in the violation of global symmetries. I am trying to bring together a collaboration to search for baryon number violation through observation of neutron-anti-neutron oscillations, and am very interested in the mu2e experiment at Fermilab.

ATLAS specifics: The discovery of the Higgs boson using data collected at center of mass energies of 7 and 8 TeV represents a huge step forward, confirming our superb understanding of electroweak physics through the Standard Model, but is also puzzling, as in the absence of new physics the Higgs boson mass should be much larger. The upcoming run at 13-14 TeV holds great promise for discovery of the new physics that keeps the Higgs boson mass low. My contributions to ATLAS are:
  • Searches for New Physics: I was convener of the Exotics group in ATLAS, and have led/contributed to many searches for new physics where new particles decay to top quarks or Higgs bosons.
  • Construction, testing and installation of the front-end boards for the liquid Argon calorimeter
  • Upgrades of the liquid Argon calorimeter readout to improve the detector for running at higher luminosities.
  • Here's a link to the activities of the Nevis ATLAS group

In the past I also worked on the D0 experiment at the Fermilab Tevatron, and on neutrino oscillations.
GB, October 2014