Lattice QCD calculations of b decays and the search for BSM physics

by Matt Wingate

I will talk about the use of lattice field theory in the search for new sources of quark flavour-changing interactions, especially those starting with a b quark. On one hand I will summarize for nonexperts the crux of our theoretical and computational methods, and on the other hand present some results of our work computing form factors for rare, exclusive semileptonic B decays.