John Ellison's Home Page

Research

My research has concentrated on the area of electroweak physics. I have been active in the DØ Collaboration's measurements of electroweak boson pair production. These processes are particularly interesting since they probe the non-Abelian gauge boson trilinear couplings of the Standard Model (i.e. the WWγ and WWZ couplings). These processes are also sensitive to deviations from the tree-level Standard Model couplings, which may arise due to compositeness of the W and Z bosons, SUSY radiative loop corrections, or other non-SM phenomena. For a review see hep-ph/9804322. I have also made many contributions to measurements of other properties of the W and Z bosons.

Another aspect of my work has focussed on building the DØ Silicon Microstrip Tracker (SMT). I was co-leader of the project in the early R&D and construction phase, and I worked on the design, fabrication, and testing of the silicon microstrip sensors. These charged particle detectors have the capability of selecting events containing B-hadron decays by precisely measuring secondary vertices which, due to the B lifetime of 1.5 psec, are significantly detached from the primary proton-antiproton interaction vertex. This capability is crucial for the DØ top quark and B physics programs as well as for the search for the Higgs boson. The SMT is now installed in DØ and is fully operational. For more information about the SMT and the DØ detector see physics/0507191.

I have recently joined the CMS experiment at CERN. CMS is one of several large experiments at the Large Hadron Collider at CERN which are seeking the answers to fundamental questions about our universe, such as: what is the origin of mass; why does matter dominate over antimatter in the universe; is nature supersymmetric; and what is dark matter made of? My current interests focus on tests of the electroweak sector of the Standard Model and searches for the Higgs boson.

Selected Talks

CP Violation Results from DØ, presented at the 34th International Conference on High Energy Physics, Philadelphia, July 29 - August 5, 2008.

Searches for the Higgs Boson at the Tevatron, presented at the 9th Conference on the Intersections of Particle and Nuclear Physics, Puerto Rico, May 30 - June 3, 2006.

Diboson Production and Drell-Yan Forward-Backward Asymmetry Measurements using the DØ Detector at Fermilab, presented at Frontiers in Contemporary Physics III, Vanderbilt University, Nashville, 23-28 May 2005.

Top Quark Physics Results from DØ, presented at the Lake Louise Winter Institute, Lake Louise, Alberta, Canada, 15-21 February 2004.

Experimental Summary Talk, presented at the XVth International Workshop on Quantum Field Theory and High Energy Physics, Tver, Russia, 14-20 September 2000.

The DØ Detector Upgrade and Physics Program, presented at the XVth International Workshop on Quantum Field Theory and High Energy Physics, Tver, Russia, 14-20 September 2000.

W and Z Boson Proterties at the Tevatron, presented at the International Europhysics Conference on High Energy Physics, Tampere, Finland, 15-21 July 1999.

The DØ Detector Upgrade and Physics with DØ in 2000, seminar presented at SLAC April 28, 1998 (note - some sections not included as postscript, e.g. the section on future top quark physics!).

Measurements of the W Boson Mass and Trilinear Gauge Boson Couplings at the Tevatron, presented at the XXXIInd Recontres de Moriond, March 14-12 1998.

W Boson Physics at the Fermilab Tevatron, presented at the Cracow Epiphany Conference on the W Boson, January 4-6, 1997.

Selected Conference Proceedings and Reports (or see full publication list)

Searches for the Higgs Boson at the Tevatron, Proceedings of the 9th Conference on the Intersections of Particle and Nuclear Physics, AIP Conference Proceedings 870, 243 (2006), T.M. Liss (Ed.).

Top Quark Physics Results from DØ, Proceedings of the Lake Louise Winter Institute, Lake Louise, Alberta, Canada, 15-21 February 2004.

The DØ Detector Upgrade and Physics Program, Proceedings of the 15th International Workshop on High Energy Physics and Quantum Field Theory, Tver, Russia, 14-20 September, 2000, Moscow State University Press (2001) M.N. Dubibib and V.I. Savrin (Eds.)

Report of the Working Group on Precision Measurements, Proceedings of Physics at Run II: QCD and Weak Boson Physics Workshop, Batavia, Illinois, 4-6 March 1999, FERMILAB-CONF-01-282-E.

W and Z Properties at the Tevatron, Proceedings of the International Europhysics Conference on High Energy Physics, Tampere, Finland, 15-21 July, 1999, Institute of Physics (2000) K. Huito, H. Kurki-Suonio, and J. Maatampi (Eds.)

Study of Trilinear Gauge Boson Couplings at the Tevatron Collider, Annual Review of Nuclear and Particle Science, 48, 33 (1998).

Measurements of the W Boson Mass and Trilinear Gauge Boson Couplings at the Tevatron, Proceedings of the XXXIInd Recontres de Moriond Electroweak Interactions and Unified Theories, Les Arcs, Savoie, France March 14-12 1998, Editions Frontiers (Paris) J. Tran Thanh Van Ed. (1999).

W Boson Physics at the Fermilab Tevatron, Acta Physica Polonica B28, 1271 (1997).