Roger Cashmore is an experimental physicist who has made numerous contributions to the study of fundamental particles and their interactions. He is particularly noted for the development of a new approach to the study of baryons — subatomic particles such as the proton and the neutron that are made up of three quarks.

Roger was also heavily involved in establishing a research programme on electron–proton annihilation using the TASSO detector at the DESY synchrotron in Hamburg, Germany. In this capacity, he was part of the team that produced the first experimental evidence for the gluon, the subatomic force-carrying particle responsible for binding quarks together.

A former Director of Research and Deputy Director General of CERN, Roger was made a Companion of the Order of St Michael and St George in 2004 for services to international particle physics. He also served as Principal of Brasenose College in Oxford and has twice been appointed Chairman of the UK Atomic Energy Authority.