Antihydrogen production within a Penning-Ioffe trap.
Slow antihydrogen (H) is produced within a Penning trap that is located within a quadrupole Ioffe trap, the latter intended to ultimately confine extremely cold, ground-state H[over ] atoms. Observed H[over ] atoms in this configuration resolve a debate about whether positrons and antiprotons can be brought together to form atoms within the divergent magnetic fields of a quadrupole Ioffe trap. The number of detected H atoms actually increases when a 400 mK Ioffe trap is turned on.
Gabrielse
G
G
Department of Physics, Harvard University, Cambridge, MA 02138, USA. gabrielse@physics.harvard.edu
Larochelle
P
P
Le Sage
D
D
Levitt
B
B
Kolthammer
W S
WS
McConnell
R
R
Richerme
P
P
Wrubel
J
J
Speck
A
A
George
M C
MC
Grzonka
D
D
Oelert
W
W
Sefzick
T
T
Zhang
Z
Z
Carew
A
A
Comeau
D
D
Hessels
E A
EA
Storry
C H
CH
Weel
M
M
Walz
J
J