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ATHENA -- First Production of Cold Antihydrogen and Beyond
ATHENA Collaboration, A. Kellerbauer, M. Amoretti +33
Atomic systems of antiparticles are the laboratories of choice for tests of CPT symmetry with antimatter. The ATHENA experiment was the first to report the production of copious am…
Production of Cold Antihydrogen with ATHENA for Fundamental Studies
ATHENA Collaboration, A. Kellerbauer, M. Amoretti +33
Since the beginning of operations of the CERN Antiproton Decelerator in July 2000, the successful deceleration, storage and manipulation of antiprotons has led to remarkable progre…
Three Dimensional Annihilation Imaging of Antiprotons in a Penning Trap
M. C. Fujiwara, M. Amoretti, G. Bonomi +28
We demonstrate three-dimensional annihilation imaging of antiprotons trapped in a Penning trap. Exploiting unusual feature of antiparticles, we investigate a previously unexplored…
The First Cold Antihydrogen
M. C. Fujiwara, M. Amoretti, C. Amsler +29
Antihydrogen, the atomic bound state of an antiproton and a positron, was produced at low energy for the first time by the ATHENA experiment, marking an important first step for pr…
Systematic study of the decay rates of antiprotonic helium states
H. Yamaguchi, R. S. Hayano, T. Ishikawa +8
A systematic study of the decay rates of antiprotonic helium (\pbhef and \pbhet) at CERN AD (Antiproton Decelerator) has been made by a laser spectroscopic method. The decay rates…