Beam preparation for studying the gravitational behavior of antimatter at rest (GBAR)

D. Lunney (1) , P. Dupre (1) , P. Grandemange (1) , V. Manea (1) , T. Mortensen (1) , S. Cabaret (2) , S. Pitrel (3) , P. Comini (4) , P. Debu (4) , L. Liszkay (4) , P. Lotrus (4) , P. Perez (4) , -M. Rey J. (4) , -M. Reymond J. (4) , N. Ruiz (4) , Y. Sacquin (4) , B. Vallage (4) , D. Brook-Roberge (4) , Ph. Hardy (4)

1 CSNSM SNO
2 CSNSM MECA
3 CSNSM INSTR
4 DPhP - Département de Physique des Particules (ex SPP)

The specific antiproton- and positron-beam requirements of the CERN AD-7 experiment, GBAR (Gravitational Behavior of Antimatter at Rest) are presented. GBAR will synthesize antihydrogen ions which will be sympathetically cooled before performing a free-fall experiment on the atom. Antiprotons delivered by CERN's ELENA facility in 100-keV, 300-ns pulses will be electrostatically decelerated and transformed to keV energies using a pulsed drift tube. Positrons are created using a linear electron accelerator and collected into a Penning-Malmberg trap. Descriptions of these ion optical systems are given along with the status.

Mots clés: Antihydrogen; Charged-particle beams; Gravitation; Traps

Domaines: Physique [physics]; Physique Nucléaire Expérimentale [nucl-ex]

D. Lunney, P. Dupre, P. Grandemange, V. Manea, T. Mortensen, et al.. Beam preparation for studying the gravitational behavior of antimatter at rest (GBAR). 11th International Conference on Low Energy Antiproton Physics (LEAP), Jun 2013, Uppsala, Sweden. pp.1-6, ⟨10.1007/s10751-014-1056-1⟩. ⟨in2p3-01149101⟩