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Conferences > LS > 2012 > LW2I > LW2I.3

Precision determination of the Fine Structure Constant from atomic recoil

Rym Bouchendira, Pierre Cladé, Saïda Guelatti-Khélifa, François Nez, and François Biraben

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Abstract

This contribution deals with an accurate determination of the fine structure constant (Δα/α=0.66 ppb) deduced from the measurement of the atomic recoil using atom interferometry and Bloch oscillations in a vertical accelerated lattice. Using this determination, a theoretical value of the electron anomaly can be deduced, in good agreement with the experimental one of Gabrielse’s group. More over our “optical value of the fine structure constant” is precise enough to test for the first time the muonic and hadronic contributions to theoretical expression of the electron anomaly.

© 2012 Optical Society of America

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