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 $\sim 3\sigma$ 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 exclusive $e^+e^-\to$ hadrons cross sections.
Volume 310 -
XVII International Conference on Hadron Spectroscopy and Structure (Hadron2017) -
Session 6: QCD and hadron structure
Recent measurements of exclusive hadronic cross sections at BABAR and the implication for the muon $g-2$ calculation
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Pre-published on:
February 16, 2018
Published on:
March 20, 2018
Abstract
DOI: https://doi.org/10.22323/1.310.0165
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.