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

Abstract : The ISR method has been largely exploited by the BABAR experiment, for measuring numerous channels of the cross section e+e- into hadrons. For the pi+pi-(gamma) and K+K-(gamma) channels, BABAR has pioneered the method based on the ratio between the hadronic mass spectra and the mu+mu-(gamma) one. This method allows to cancel many systematic uncertainties in the ratio, hence the precise measured cross sections. Many multihadronic channels have also been studied using the ISR method, and cross sections have been published. These experimental results have also been exploited for phenomenological studies, like the determination of the hadronic contribution to the anomalous magnetic moment of the muon (g-2)_mu.
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http://hal.in2p3.fr/in2p3-00955497
Contributor : Sabine Starita <>
Submitted on : Tuesday, April 29, 2014 - 9:59:43 AM
Last modification on : Wednesday, September 16, 2020 - 4:23:19 PM

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  • HAL Id : in2p3-00955497, version 1
  • ARXIV : 1404.6887

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B. Malaescu. Measurement of hadronic cross sections at BaBar with ISR and implications for the muon (g-2). Photon 2013, May 2013, Paris, France. pp.044. ⟨in2p3-00955497⟩

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