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24 April 2024

» pubmed » pmid17155742

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Search for laser-induced formation of antihydrogen atoms
M Amoretti ; C Amsler ; G Bonomi ; P D Bowe ; C Canali ; C Carraro ; C L Cesar ; M Charlton ; A M Ejsing ; A Fontana ; M C Fujiwara ; R Funakoshi ; P Genova ; J S Hangst ; R S Hayano ; L V Jørgensen ; A Kellerbauer ; V Lagomarsino ; E Lodi Rizzini ; M Macrì ; N Madsen ; G Manuzio ; D Mitchard ; P Montagna ; L G C Posada ; H Pruys ; C Regenfus ; A Rotondi ; H H Telle ; G Testera ; D P Van der Werf ; A Variola ; L Venturelli ; Y Yamazaki ; N Zurlo ; ;
Date:	24 Nov 2006
Journal:	Phys Rev Lett, 97 (21), 213401
Abstract:	Antihydrogen can be synthesized by mixing antiprotons and positrons in a Penning trap environment. Here an experiment to stimulate the formation of antihydrogen in the n = 11 quantum state by the introduction of light from a CO2 continuous wave laser is described. An overall upper limit of 0.8% with 90% C.L. on the laser-induced enhancement of the recombination has been found. This result strongly suggests that radiative recombination contributes negligibly to the antihydrogen formed in the experimental conditions used by the ATHENA Collaboration.
Source:	PubMed, pmid17155742
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