https://doi.org/10.1140/epjd/e2013-40599-9
Regular Article
The GBAR experiment*
Gravitational behaviour of antihydrogen at rest
IRFU/SPP, CEA-Saclay, 91191
Gif-sur-Yvette Cedex,
France
a
e-mail: yves.sacquin@cea.fr
Received:
2
October
2013
Received in final form:
28
October
2013
Published online:
20
February
2014
Measuring the gravitational behaviour of antimatter is a crucial test of the Weak
Equivalence Principle. However, the gravitational force is so weak that the experiment
requires a cooling of antimatter never achieved so far. The GBAR experiment aims to
overcome this challenge using the anti-ion 
; a high-intensity positron source has been developed
for this purpose.
Key words: Topical issue: Electron and Positron Induced processes
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag 2014
