Evidence For The Production Of Slow Antiprotonic Hydrogen In Vacuum
Abstract
We present evidence showing how antiprotonic hydrogen, the quasistable antiproton (p¯)-proton bound system, has been synthesized following the interaction of antiprotons with the molecular ion H2+ in a nested Penning trap environment. From a careful analysis of the spatial distributions of antiproton annihilation events, evidence is presented for antiprotonic hydrogen production with sub-eV kinetic energies in states around n=70, and with low angular momenta. The slow antiprotonic hydrogen may be studied using laser spectroscopic techniques.
- Publication:
-
Physical Review Letters
- Pub Date:
- October 2006
- DOI:
- arXiv:
- arXiv:0708.3717
- Bibcode:
- 2006PhRvL..97o3401Z
- Keywords:
-
- 36.10.-k;
- 34.80.Lx;
- 52.20.Hv;
- Exotic atoms and molecules;
- Electron-ion recombination and electron attachment;
- Atomic molecular ion and heavy-particle collisions;
- High Energy Physics - Experiment
- E-Print:
- 5 pages with 4 figures. Published as Phys. Rev. Letters 97, 153401 (2006), in slightly different form