We present results [1,2] from the BABAR experiment on searches for low-mass new physics. This includes a search for a light CP-odd Higgs boson (A~0) in Y(1S) →γA~0, A~0 →cc decays, which provides limits on the product branching fraction B(Y(1S) →γA~0) × B(A~0 →cc) at the level of 7 × 10~(-5) - 2 × 10~(-3) for A~0 masses between 4.0 GeV/c~2 and 9.25 GeV/c~2 and a search for a dark photon (A'), a new light gauge boson introduced by dark sector models obtaining 90% confidence level upper limits on the mixing strength between the photon and dark photon at the level of 10~(-4) - 10~(-3) for dark photon masses in the range 0.02 - 10.2 GeV/c~2.
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