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29 March 2024
 
  » pubmed » pmid17155325

 Article overview


Evidence for the production of slow antiprotonic hydrogen in vacuum
N Zurlo ; M Amoretti ; C Amsler ; G Bonomi ; C Carraro ; C L Cesar ; M Charlton ; M Doser ; A Fontana ; R Funakoshi ; P Genova ; R S Hayano ; L V Jørgensen ; A Kellerbauer ; V Lagomarsino ; R Landua ; E Lodi Rizzini ; M Macrì ; N Madsen ; G Manuzio ; D Mitchard ; P Montagna ; L G Posada ; H Pruys ; C Regenfus ; A Rotondi ; G Testera ; D P Van der Werf ; A Variola ; L Venturelli ; Y Yamazaki ; ;
Date 13 Oct 2006
Journal Phys Rev Lett, 97 (15), 153401
AbstractWe 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.
Source PubMed, pmid17155325
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