BaBar
Queen Mary has a very active role in the BaBar experiement.
The BaBar experiment has been built, primarily, to measure CP-violation, a delicate asymmetry between matter and antimatter. This asymmetry is thought to explain why the Universe is made pre-dominantly of matter (and not of antimatter). BaBar has measured this asymmetry for the first time in the decays of neutral Beauty mesons.
The experiment has been running at the PEP-II electron-positron collider (also known as the Beauty Factory), at the Stanford Linear Accelerator Center in California, since May 1999 and has just stopped taking data.
Related links:
http://www.slac.stanford.edu/B[...]