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Gherghetta Returns to the School


Tony Gherghetta will be re-joining the School as a Professor in August 2013. Since 2008, Tony Gherghetta has been a Professor and Australian Research Council Federation Fellow in the School of Physics at the University of Melbourne. He has also been a Visiting Professor in the Physics Department at Stanford University since 2010.

Gherghetta earned his doctorate and M.S. from the University of Chicago, and received his B.Sc. in physics and mathematics from the University of Western Australia. He was a research fellow at the University of Michigan in the Department of Physics (1994-97), and at CERN in the Theory Division (1997-99). He originally joined the School of Physics as an Assistant Professor in 2002 and was promoted to Associate Professor in 2006.
Gherghetta’s research is primarily focused on addressing the question of the origin of mass in the Standard Model. The recent discovery of the Higgs boson at the Large Hadron Collider confirms that the Higgs mechanism is responsible for generating the elementary particle masses, such as the electron. However it is not known whether the Higgs boson is a fundamental or composite particle. What seems certain is that new physics beyond the standard model is required to incorporate either of these possibilities in a natural way. If the Higgs is fundamental then supersymmetry is needed, while the composite Higgs scenarios require new strong dynamics at the TeV scale. In the past decade new ideas associated with extra dimensions and the anti-de Sitter/conformal field theory (AdS/CFT) correspondence have provided a number of interesting possibilities. This new paradigm for particle physics has been far-reaching, allowing one to address the fermion mass hierarchy and flavor problem, as well as dark matter and neutrino physics in a complete framework.
Over the past 15 years, Gherghetta has played an active and leading role in the new ideas of beyond the standard model physics. Achievements include low-scale grand unification, neutrinos and axions in the fifth dimension, supersymmetry breaking and AdS/CFT, and solving the fermion mass hierarchy problem.
He plans to continue to investigate all possibilities for understanding the origin of mass in the Standard Model.