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physics.atom-ph2011★ 12 cited
First observation of two hyperfine transitions in antiprotonic He-3
S. Friedreich, D. Barna, F. Caspers +11
We report on the first experimental results for microwave spectroscopy of the hyperfine structure of antiprotonic He-3. Due to the helium nuclear spin, antiprotonic He-3 has a more…
physics.atom-ph2009
Collision Induced Relaxations within the Antiprotonic Helium Hyperfine Structure
T. Pask, D. Barna, A. Dax +10
We report the first measurements of the inelastic spin exchange collision rate between the Hyperfine (HF) levels of antiprotonic helium. We measure the time dependent evolution of…