Associate Professor Roy Briere of the Carnegie Mellon Physics Department has been elected co-spokesperson for the CLEO Collaboration, a group of about 140 scientists from 22 universities. CLEO is a high-energy particle physics experiment, running at the Cornell Electron Storage Ring (CESR) on the Cornell University campus. CESR is an electron-positron colliding beam accelerator with a center-of-mass energy in the 3-4 GeV range. The CLEO experiment studies properties of particles containing the charm quark, measuring the decays of both the bound-state psi resonances made up of a charm and an anti-charm quark, and the "open-charm" D mesons, which contain a charm quark bound to a non-charm quark. CLEO is now the preeminent experiment in the world for the study of charm particle decays. Professor Briere is joined in his work on CLEO by Professors Helmut Vogel and Thomas Ferguson of the Physics Department's experimental high-energy particle physics group.

For further information, see the CMU press release.