Low-energy hadronic cross sections measurements at BaBar, and\n implication for the g-2 of the muon

2016/04/26 by D. Bernard, Bernard, Denis, Collaboration, The BaBar
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.1604.07641

openalex publication_date 2016/04/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The BaBar Collaboration has an intensive program studying the cross sections\nof hadron production in low-energy e+e- annihilation, accessible via\ninitial-state radiation. Our measurements allow a significant improvement in\nthe precision of the predicted value of the muon anomalous magnetic moment.\nThese improvements are necessary for shedding light on the current > 3 sigma\ndifference between the predicted and the experimental values. We have published\nresults on a number of processes with two to six hadrons in the final state,\nand other final states are currently under investigation. We report here on the\nmost recent results obtained by analysing the entire Babar dataset.\n

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• Measurement of hadronic cross sections at BABAR with ISR and implications for the muon (g-2)
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