Speaker
Fabio Anulli
(Sapienza Universita e INFN, Roma I (IT))
Description
The BABAR Collaboration has an intensive program studying hadronic cross sections in low-energy $e^+e^-$ annihilations, which are accessible with data taken near the $\Upsilon(4{\mathrm{S}})$ via initial-state radiation.
Our measurements allow significant improvements in the precision of the predicted value of the muon anomalous magnetic moment.
These improvements are necessary for shedding light on the current ~3 sigma difference between the predicted and the experimental values.
We have previously published results on a number of processes with two to six hadrons in the final state. We report here on several recent measurements of hadronic cross sections in $e^+e^-$ annihilations.
Primary author
Fabio Anulli
(Sapienza Universita e INFN, Roma I (IT))
