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Article Dans Une Revue New Journal of Physics Année : 2022

Analysis of the timing of freely falling antihydrogen

Pierre Cladé
Saïda Guellati-Khélifa
Serge Reynaud

Résumé

We evaluate the accuracy to be expected for the measurement of free fall acceleration of antihydrogen in the GBAR experiment, accounting for the recoil transferred in the photodetachment process. We show that the uncertainty on the measurement of gravity comes mainly from the initial velocity dispersion in the ion trap so that the photodetachment recoil is not the limiting factor to the precision as a naive analysis would suggest. This result will ease the constraints on the choice of the photodetachment laser parameters.

Dates et versions

hal-03431981 , version 1 (17-11-2021)

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Citer

Olivier Rousselle, Pierre Cladé, Saïda Guellati-Khélifa, Romain Guérout, Serge Reynaud. Analysis of the timing of freely falling antihydrogen. New Journal of Physics, 2022, 24, pp.033045. ⟨10.1088/1367-2630/ac5b57⟩. ⟨hal-03431981⟩
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