Mark Thomson (born 28 April 1966) is a British particle physicist. He is a Professor of Experimental Particle Physics at the Cavendish Laboratory at the University of Cambridge and a Fellow at Emmanuel College, Cambridge. Since January 2018, he has been the Executive Chair of the Science and Technology Facilities Council, one of the nine councils of UK Research and Innovation.^[1] Thomson is a delegate of the United Kingdom to CERN Council,^[2] the Square Kilometre Array Observatory (SKAO)^[3] and European Spallation Source ERIC (ESS).^[4]

From 1992 - 1994, Thomson was a postdoctoral research fellow in the High Energy Physics group at University College London. In 1994, he joined CERN firstly as a fellow and then as a staff research physicist where he worked on the OPAL experiment. Since 2000, Thomson has worked at the University of Cambridge as a Lecturer (2000 - 2004), Reader (2004 - 2008) and Professor of Experimental Particle Physics (2008–present).^[5]

From 2015 - 2018, Thomson was the co-leader and co-spokesperson for the Deep Underground Neutrino Experiment in the United States.^[6] Thomson also worked on MicroBooNE^[7] and the MINOS^[8] experiments.

Thomson completed a Bachelor of Arts degree in Physics (1988) and a DPhil (1991) in Experimental Astro-particle Physics at the University of Oxford.^[9] His DPhil was supervised by John H. Cobb.^[10]

Thomson is the author or co-author of more than 1100 publications in peer reviewed scientific journals covering a number of major areas in High Energy Particle Physics.^[11] His main research interests are in electron-positron collider physics, neutrino physics and the development of novel and powerful reconstruction techniques for cutting edge detector technologies. In addition to his research activities, he is the author of “Modern Particle Physics”.^[12]