Remarkable suppression of the $e^{+}e^{-}\toπ^{+}π^{-}$ contribution error into muon $g-2$

Details Remarkable suppression of the $e^{+}e^{-}\toπ^{+}π^{-}$ contribution error into muon $g-2$ Remarkable suppression of the $e^{+}e^{-}\toπ^{+}π^{-}$ contribution error into muon $g-2$

2009-10-11

arxiv.org/abs/0910.2006v1

Nucl.Phys.Proc.Suppl.198:194-198,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 Latex pages,1 figure. Talk at the HSQCD 2009 Int. Conference, Tatranska Strba, 29.8.3.9.2009, Slovak Republic

Scientific paper

10.1016/j.nuclphysbps.2009.12.03

We use the unitary and analytic model of the pion electromagnetic form factor in order to evaluate in the lowest order the $e^{+}e^{-}\to\pi^{+}\pi^{-}$ contribution into the muon magnetic anomaly. We demonstrate, that this technique enables us to reduce the uncertainty of the theoretical prediction importantly in comparison to usual approaches, where the measured data are integrated directly.

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