Flavor-Change with Ultra-Light Sbottom and Gluinos

Implications of a 2-5.5 GeV sbottom and 12-16 GeV gluino masses for rare B decay phenomenology are discussed. An effective Hamiltonian is constructed in which the gluinos are integrated out and a squark remains among the light flavor degrees of freedom. Restrictive constraints come from b {yields} s{gamma} and b {yields} sg, but they allow a substantially enhanced inclusive b decay rate into charmless hadronic final states, and {Omicron}(10%) direct CP asymmetries in B {yields} X{sub s}{gamma} and B{sup {+-}} {yields} K{sup 0}{pi}{sup {+-}} decays, which are an order of magnitude larger than in the Standard Model. New contributions to B{sub s} mixing are negligible but significant effects in B{sub d} mixing may be possible.