Measurement of hadronic cross sections with the BABAR detector
Résumé
A program of measuring exclusive e + e− to light 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 with the full data set of about 470 fb−1 collected by the BABAR experiment. In particular, we report the result on the channel e + e− → π + π− π 0 π0 , which gives the main uncertainty on the total cross section in the energy region between 1 and 2 GeV. We have also completed the studies of the final states with two neutral or charged kaons.