Since 1986, Burchat has been a member of multiple particle physics experiments: the Mark II experiment at the SLAC Linear Collider, the E791 experiment at Fermilab, and she was a founding member of the BaBar experiment at SLAC,[6] exploring fundamental interactions, especially the weak interaction. Topics she explored in these experiments included the Z-zero neutral carriers of the weak interaction, heavy neutral leptons, semileptonic decay of charm mesons, charm mixing, and CP violation in B meson decays, or differences in the way matter and antimatter evolve in time.[6]