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 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.
Evidence for the production of slow antiprotonic hydrogen in vacuum
FONTANA, ANDREA;GENOVA, PABLO;MONTAGNA, PAOLO MARIA;ROTONDI, ALBERTO
2006-01-01
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 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.File in questo prodotto:
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