The BTeV experiment — for B meson TeV (teraelectronvolt) — was an experiment in high-energy particle physics designed to challenge the Standard Model explanation of CP violation, mixing and rare decays of bottom and charm quark states. The Standard Model has been the baseline particle physics theory for several decades and BTeV aimed to find out what lies beyond the Standard Model. In doing so, the BTeV results could have contributed to shed light on phenomena associated with the early universe such as why the universe is made up of matter and not anti-matter.