Low mass New Physics search for a CP-odd Higgs boson $A^0$ deacying to $s\bar{s}$ or gluon gluon at BaBar

We report on the search for the decay $\mathrm{{\rm Y}}(1S)\to \gamma A^0$, $A^0 \to gg$or$s\bar s$,where$A^0$ is the pseudoscalar light Higgs boson predicted by the next-to-minimal supersymmetric standard model. A sample of $\sim 18 \times 10^6$ $\mathrm{{\rm Y}}(1S)$ resonances, produced in the BaBar experiment via $e^{+}{e}^{-}\to \mathrm{{\rm Y}}(2S)\to {\pi }^{+}{\pi }^{-}\mathrm{{\rm Y}}(1S)$, is used for this search. No significant signal has been found, and upper limits at the $90\mathrm{\%}$ of confidence level are set on the product branching fraction of the process.