UK Brian R. Martin is emeritus professor of physics at University College London, where he was Head of the Physics Department until 2004. His book on Nuclear and Particle Physics, now in its second edition, has become an established undergraduate textbook. US Brian R. Martin is emeritus professor of physics at University College London, where he chaired the physics department until 2004. His book Nuclear and Particle Physics (Wiley) is an established college textbook, now in its second edition.