Title: BaBar Results on e+ e- --> pi+ pi- and the Muon g-2 Prediction
Speaker:  Dr. Michel Davier, LAL-Orsay, France
Date/Time: Thurs, Jan. 29, 2009, 3:00 PM EST
Place:  BNL Physics Department, Small Seminar Room


Abstract:

Preliminary results have been obtained recently on the precise
measurement of the cross section for e+ e- --> pi+ pi- using the
radiative return method with BaBar. Small systematic uncertainties
are achieved through determinations of all the relevant efficiencies
with data and by measuring the ratio of pion to muon pairs. The
impact of these results on the muon g-2 prediction is discussed.

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