CP Violation In Charm Decays: 3.5 Sigma From LHCb!
Today I wish to briefly discuss a recent important measurement produced by the LHCb collaboration, a measurement of CP violation in the decay of charmed mesons. Before I do, I think I need to explain some details of the LHCb experimental arrangement, because it is different from what most readers here are familiar with.Some pedestrian kinematicsLHCb is one of the four detectors you may run into these days, if you are a 3.5 TeV proton. Less known than its bigger brothers ATLAS and CMS, LHCb still looks at the 7-TeV collisions delivered by LHC, but does so "sideways": only particles produced in and around the direction of one of the two beams are studied. The figure below shows a side view of LHCb, with a graph to decode the various pieces. read more
