Large Hadron Collider discovers new pentaquark particle

From BBC:
It was first predicted to exist in the 1960s but, much like the Higgs boson particle before it, the pentaquark eluded science for decades until its detection at the LHCb experiment. The findings have been submitted to the journal Physical Review Letters.The LHCb experiment is an experiment set up to understand what allowed matter to survive (as opposed to antimatter) by studying the properties of quarks.