  A very light scalar top (stop) superpartner is motivated by naturalness and
electroweak baryogenesis. When the mass of the stop is less than the sum of the
masses of the top quark and the lightest neutralino superpartner, as well as
the of the masses of the lightest chargino and the bottom quark, the dominant
decay channels of the stop will be three-body, four-body, or flavour violating.
In this work, we investigate the direct and indirect constraints on a light
stop, we compute the relative decay branching fractions to these channels, and
we study the sensitivity of existing LHC searches to each of them.
