Phenomenological consequences of right-handed down squark mixings

The mixings of d(R) quarks, hidden from view in the standard model (SM), ar e naturally the largest if one has an Abelian flavor symmetry. With supersy mmetry (SUSY) their effects can surface via (d) over tilde (R) squark loops . Squark and gluino masses are at TeV scale, but they can still induce effe cts comparable to SM in B-d (or B-s) mixings, while D-0 mixing could be clo se to recent hints from data. In general, CP phases would be different from SM, as may be indicated by recent B factory data. Presence of nonstandard soft SUSY breakings with large tan beta could enhance b --> d gamma (or s g amma) transitions.