Stephen Parke

Stephen Parke (born 1950) is a New Zealand physicist. He is a Senior Scientist and Head of the Theoretical Physics Department at the Fermi National Accelerator Laboratory (Batavia, Illinois).
Born in Gisborne, New Zealand, Parke attended St Peter's College, Auckland and the University of Auckland in New Zealand. He was a graduate student of Sidney Coleman at Harvard University, obtaining a PhD in theoretical particle physics. He held a postdoctoral fellowship at the Stanford Linear Accelerator Center (1980–1983) before moving to the Fermi National Accelerator Laboratory.

He is an originator of Parke-Taylor amplitudes, which represent a new approach to computing scattering amplitudes in quantum chromodynamics using symmetry methods such as supersymmetry. Parke is also an expert on neutrino physics as well as the physics of the top quark.