TY - JOUR
T1 - The ingredients of cold antihydrogen
T2 - Simultaneous confinement of antiprotons and positrons at 4 K
AU - Gabrielse, G.
AU - Hall, D. S.
AU - Roach, T.
AU - Yesley, P.
AU - Khabbaz, A.
AU - Estrada, J.
AU - Heimann, C.
AU - Kalinowsky, H.
N1 - Funding Information:
We are grateful to the LEAR staff and the CERN management for providing the MeV antiprotons that we used over eleven years to develop the slowing, trapping and cooling techniques that will be used to make cold antihydrogen. It is fitting that the last nine days of LEAR operation were devoted to demonstrating that these techniques could produce the simultaneous confinement of cold antiprotons and positrons, opening the way to a new era of antihydrogen studies at the new Antiproton Decelerator now under construction at CERN. This work was supported by AFOSR, NSF and ONR of the US, and by the BMBF of Germany.
PY - 1999
Y1 - 1999
N2 - Low energy antiprotons and cold positrons are stored together and observed to interact for the first time. The particles and the nested Penning trap that confines them are cooled to 4.2 K, within a vacuum better than 5 × 10-17 Torr. The simultaneous confinement clearly demonstrates the potential of a nested Penning trap for the production of cold antihydrogen. Contaminant ions play a deleterious role, and we observe a surprising coupling between the positron and antiproton accumulation mechanisms.
AB - Low energy antiprotons and cold positrons are stored together and observed to interact for the first time. The particles and the nested Penning trap that confines them are cooled to 4.2 K, within a vacuum better than 5 × 10-17 Torr. The simultaneous confinement clearly demonstrates the potential of a nested Penning trap for the production of cold antihydrogen. Contaminant ions play a deleterious role, and we observe a surprising coupling between the positron and antiproton accumulation mechanisms.
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U2 - 10.1016/S0370-2693(99)00453-0
DO - 10.1016/S0370-2693(99)00453-0
M3 - Article
AN - SCOPUS:0001283193
SN - 0370-2693
VL - 455
SP - 311
EP - 315
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 1-4
ER -