Abstract
We present evidence showing how antiprotonic hydrogen, the quasistable antiproton ()-proton bound system, has been synthesized following the interaction of antiprotons with the molecular ion 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 , and with low angular momenta. The slow antiprotonic hydrogen may be studied using laser spectroscopic techniques.
- Received 17 July 2006
DOI:https://doi.org/10.1103/PhysRevLett.97.153401
©2006 American Physical Society