The find should be the first of many beauty decays that LHCb, the LHC's beauty experiment, will observe, and demonstrates the detector is working as planned.
LHCb will look at many such decays in order to shed light on what happened to the antimatter that should have been created alongside the matter that makes up our universe.
Andrei Golutvin, spokesperson for the LHCb collaboration, proudly showed a movie of protons 'splashing' through his group's detector. "The beam conditions are excellent, " he told the crowd.