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Hadron production in e^+e^- annihilation at BABAR, and implication for the muon anomalous magnetic moment

Porter, Frank C. (2013) Hadron production in e^+e^- annihilation at BABAR, and implication for the muon anomalous magnetic moment. . (Submitted) http://resolver.caltech.edu/CaltechAUTHORS:20131028-140659194

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Abstract

The BABAR collaboration has an extensive program of studying hadronic cross sections in low-energy e^+e^- collisions, accessible 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 illuminating the current 3.6 sigma difference between the predicted and the experimental values. We have published results on a number of processes with two to six hadrons in the final state. We report here the results of recent studies with final states that constitute the main contribution to the hadronic cross section in the energy region between 1 and 3 GeV, as e^+e^- → K^+K^-, π^+π^-, and e^+e^- → 4 hadrons.


Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription
http://arxiv.org/abs/1310.3300arXivDiscussion Paper
Additional Information:Paper presented at: DPF 2013. The Meeting of the American Physical Society Division of Particles and Fields Santa Cruz, California, August 13-17, 2013. I am grateful to my BABAR colleagues for many stimulating discussions. This work is supported in part by the U. S. Department of Energy under grant DE-FG02-92-ER40701.
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)DE-FG02-92-ER40701
Record Number:CaltechAUTHORS:20131028-140659194
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20131028-140659194
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:42099
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:28 Oct 2013 22:11
Last Modified:28 Oct 2013 22:11

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