Speaker
Description
A program of measuring the light hadrons production in exclusive $e^+e^- \to$ hadrons processes is in place at BABAR, with the aim to improve the calculation of the hadronic contribution to the muon $g-2$. We present the most recent results obtained by using the full data set of about 470 fb$^{-1}$ collected by the BABAR experiment at the PEP-II $e^+e^-$ collider at a center-of-mass energy of about 10.6 GeV. In particular, we report the results on the channels $e^+e^- \to \pi^+\pi^-\pi^0\pi^0$, $e^+e^- \to \pi^+\pi^-\eta$, $K^0_S K^+\pi^-\pi^0$, $\bar{K^0}K^0\pi^0$, $\bar{K^0}K^0\pi^0\pi^0$, and $\bar{K^0}K^0\eta$.
The first reaction is the main source of uncertainty on the total hadronic cross section in the energy region between 1 and 2 GeV, while the other processes, together with previous BABAR results, complete the studies of the final states with two neutral or charged kaons.
