by Ian Randall. Published: 06 April 2011

“Right now the LHC is about to start a short run with proton-proton collisions at a center of mass energy 2.76 TeV. This is lower than what we ran last year and is a special request from the heavy ion physicists. So you’ve heard a lot about why the particle physicists want to go to higher energy. But why do we heavy ion physicists want to go to lower energy?”


Matters encourages readers to visit the US LHC blog, where Christine Nattrass – subject of a previous issue’s ‘Focus On’ segment – explains why ALICE requested a lower energy proton-proton run.