Research Faculty: NAME GOES HERE
prof picture prof name
Professor

Experimental High Energy Physics: The ATLAS Experiment
at the CERN Large Hadron Collider.

Telephone: (416)978-6029
e-mail: orr@physics.utoronto.ca

Research Talks Papers Post-Docs Students Teaching



B.Sc. Imperial College, University of London, UK. (1968), Ph.D. Imperial College, University of London, UK. (1972), Post Doctoral, Rutherford Laboratory, UK. (1972-1974), University of Wisconsin, Madison, USA. (1974-1975), CERN Fellow and Staff Physicist, European Organization for Nuclear Research, Geneva (1976-1981), Research Scientist, Institute of Particle Physics (1981-1995),Visiting Scientist, CERN (1997-1998), JSPS Invitation Fellow, KEK - Japan (2005-2006), Fellow of American Physical Society (1995), Fellow of Royal Society of Canada (2009), Visiting Scholar Fermi National Accelerator Laboratory (2012), Rosi & Max Veron Visiting Professor Weizman Institute of Science, Israel (2013).


An elementary discussion of what interests me: What is the Universe Made Of? These are Slides from the introductory lecture in my third year undergraduate course PHY357

My research is part of a wide collaborative experimental effort to understand what lies beyond our present ideas on the most fundamental structure of matter. In the twenty years from 1975, the interplay between experiment (see for example my first two "Selected Publications") and theory, has led to a synthesis known as the standard model; it encompasses all presently known phenomena in particle physics. It also points to the existence of new phenomena which should be accessible to the generation of experiments now under construction.

My own work is part of the ATLAS collaboration. ATLAS is a large general purpose detector which operates at the CERN Large Hadron Collider. At Toronto during the period 1995 to 2006, I worked on the construction of an innovative particle detector which is instrumental in the search for at least two of the new phenomena mentioned above; Supersymmetry, and the origin of electroweak symmetry breaking ( the mechanism which generates the masses of particles). This detector is the outcome of a long term at programme at Toronto aimed at developing very radiation hard particle detectors. Only such detectors can function close to the high intensity LHC beams.

Research projects I have previously been involved in: ZEUS, ARGUS, CHARM, Split Field Magnet, HPWF , OMEGA , 1.5 meter Bubbble Chamber .

Apart from Physics, I'm interested in: Accelerators , Japanese , Animals , Railways , Jeeps , and Mountains .



Selected Publications

``Observations of New Particle Production by High Energy Neutrinos and Anti-Neutrinos'', A. Benvenuti et al., Phys. Rev. Lett. 34, 7, 419 (1975).
``Measurement of the Cross Section of Anti-Neutrino Scattering on Electrons'', M. Joner et al., Phys. Lett. 105B, 242 (1981).
``Observation of Mixing'', H. Albrecht et al., Phys. Lett. 129B, (1987) 245-252.
``Measurement of the proton structure function in ep scattering at Hera'', M. Derrick et al., Phys. Lett. B316, (1993) 412-426.
``Extraction of the gluon density of the proton at small x'', M. Derrick et al., Phys. Lett. B345, (1995) 576-588.
`` Comparison of ZEUS Data with Standard Model Predictions for e+p → e+p Scattering at High x and Q2 ", J. Breitweg et al., Z. f. Physik C74 (1997) 207-220.
``High Energy Beam Tests of the ATLAS Tungsten Forward Calorimeter.", J.K. Mayer et al., Proceedings of "5th International Conference on Advanced Technology and Particle Physics", Como, Italy, October 5-9, 1998
`` A particle consistent with the Higgs Boson observed with the ATLAS Detector at the Large Hadron Collider. " , the ATLAS Collaboration (Georges Aad et al.), Science 338 (2012) 1576-1582.

Post Docs

Teresa Spreitzer
Justin Keung

Graduate Students

Recently Graduated

Saminder Dhaliwal
Behi Fatholahzadeh
Reyhaneh Rezvani

Current

David DeMarco
Santiago Batista


This site is maintained by Robert S. Orr.  Last update December 2013