July 31, 2017 to August 4, 2017
Fermi National Accelerator Laboratory
US/Central timezone

Recent measurements of exclusive hadronic cross sections at BABAR and the implication for the muon g-2 calculation

Aug 1, 2017, 11:39 AM
18m
Racetrack (Fermi National Accelerator Laboratory)

Racetrack

Fermi National Accelerator Laboratory

Presentation QCD QCD

Speaker

Dr David Brown (University of Louisville)

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(4S) 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

Prof. Frank Porter (Caltech)

Co-author

Presentation materials