The High Energy Physics Experimental group is involved in a major collaborative effort named CLEO at the Wilson Synchrotron Laboratory at Cornell. The Cornell Electron Storage Rings produce electron-positron annihilations; the CLEO experiment detects the results of these annihilations. The objective is to study details of new quark states and couplings. The energy range of the beams is perfect for investigation of particles containing bottom quarks, and is also very convenient for finding new states containing charm quarks.
Data from Cornell is analyzed using the large parallel processing computer farm located in Florida. This has led to many discoveries concerning in particular rare decays of B mesons and new charmed baryon states. Measurements such as these provide fundamental tests of the Standard Model description of strong, electromagnetic and weak decays.
This picture of the CLEO II detector with annotations is useful for getting a quick understanding.