Hadronic Contributions to R and g-2 from Initial-State-Radiation Data

2009/10/19 by D. Bernard, Bernard, D.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Particle Detector Development and Performance #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex

paper · pdf · doi:10.48550/arxiv.0910.3294

4 pages, 10 figures. To appear in the proceedings for XXIX Physics in Collision, International Symposium in Kobe, Japan, August 30 - September 2, 2009

arxiv created 2009/10/19 · openalex publication_date 2009/10/19 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

I review the recent efforts to improve the precision of the prediction of the anomalous moment of the muon, in particular of the hadronic contribution of the vacuum polarization, which is the contribution with the largest uncertainty. Focus is given to the recent result for e+e- -> pi+pi- by the BaBar collaboration, obtained using events with radiation in the initial state.

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• New BaBar studies of high-order radiation and the new landscape of data-driven HVP predictions of the muon g-2
• Hadronic Contribution to (g-2)_mu
• Theory review for hadronic corrections to g-2
• The muon g-2: a brief overview of hadronic cross section data