Published November 24, 2006
| Version v1
Journal article
Search for Laser-Induced Formation of Antihydrogen Atoms
Creators
- Amoretti, M.1
- Macri, M.1
- Testera, G.1
- Variola, A.1
- Amsler, C.2
- Pruys, H.2
- Regenfus, C.2
- Bonomi, G.3, 4
- Bowe, P. D.5
- Ejsing, A. M.5
- Hangst, J. S.5
- Madsen, N.5
- Canali, C.6, 1
- Carraro, C.6, 1
- Lagomarsino, V.6, 1
- Manuzio, G.6, 1
- Cesar, C. L.7
- Charlton, M.8
- Joergensen, L. V.8
- Mitchard, D.8
- and others
- ATHENA Collaboration
- 1. Istituto Nazionale di Fisica Nucleare, Sezione di Genova, 16146 Genova (Italy)
- 2. Physik-Institut, Zuerich University, 8057 Zuerich (Switzerland)
- 3. Istituto Nazionale di Fisica Nucleare, Universita di Pavia, 27100 Pavia (Italy)
- 4. Dipartimento di Ingegneria Meccanica, Universita di Brescia, 25123 Brescia (Italy)
- 5. Department of Physics and Astronomy, University of Aarhus, 8000 Aarhus C (Denmark)
- 6. Dipartimento di Fisica, Universita di Genova, 16146 Genova (Italy)
- 7. Instituto de Fisica, Univesidade Federal do Rio de Janeiro, Rio de Janeiro 21945-970 (Brazil)
- 8. Department of Physics, University of Wales Swansea, Swansea SA2 8PP (United Kingdom)
Description
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
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 97
- Journal Issue
- 21
- Journal Page Range
- p. 213401-213401.4
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38024363
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Descriptors DEI
- ANTIPROTONS; CARBON DIOXIDE LASERS; HYDROGEN; POSITRONS; RECOMBINATION
- Descriptors DEC
- ANTIBARYONS; ANTILEPTONS; ANTIMATTER; ANTINUCLEI; ANTINUCLEONS; ANTIPARTICLES; BARYONS; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; GAS LASERS; HADRONS; LASERS; LEPTONS; MATTER; NONMETALS; NUCLEI; NUCLEONS; PROTONS
Optional Information
- Notes
- (c) 2006 The American Physical Society
- Collaborations
- ATHENA Collaboration