Background-Free Observation of Cold Antihydrogen with Field-Ionization Analysis of Its States

G. Gabrielse; N. S. Bowden; P. Oxley; A. Speck; C. H. Storry; J. N. Tan; M. Wessels; D. Grzonka; W. Oelert; G. Schepers; T. Sefzick; J. Walz; H. Pittner; T. W. Hänsch; E. A. Hessels

doi:10.1103/PhysRevLett.89.213401

Background-Free Observation of Cold Antihydrogen with Field-Ionization Analysis of Its States

G. Gabrielse^*, N. S. Bowden, P. Oxley, A. Speck, C. H. Storry, J. N. Tan, M. Wessels, D. Grzonka, W. Oelert, G. Schepers, T. Sefzick, J. Walz, H. Pittner, T. W. Hänsch, E. A. Hessels

^*Corresponding author for this work

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

555 Scopus citations

Abstract

A background-free observation of cold antihydrogen atoms is made using field ionization followed by antiproton storage, a detection method that provides the first experimental information about antihydrogen atomic states. More antihydrogen atoms can be field ionized in an hour than all the antimatter atoms that have been previously reported, and the production rate per incident high energy antiproton is higher than ever observed. The high rate and the high Rydberg states suggest that the antihydrogen is formed via three-body recombination.

Original language	English (US)
Journal	Physical review letters
Volume	89
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevLett.89.213401
State	Published - 2002

ASJC Scopus subject areas

Physics and Astronomy(all)

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Gabrielse, G., Bowden, N. S., Oxley, P., Speck, A., Storry, C. H., Tan, J. N., Wessels, M., Grzonka, D., Oelert, W., Schepers, G., Sefzick, T., Walz, J., Pittner, H., Hänsch, T. W., & Hessels, E. A. (2002). Background-Free Observation of Cold Antihydrogen with Field-Ionization Analysis of Its States. Physical review letters, 89(21). https://doi.org/10.1103/PhysRevLett.89.213401

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abstract = "A background-free observation of cold antihydrogen atoms is made using field ionization followed by antiproton storage, a detection method that provides the first experimental information about antihydrogen atomic states. More antihydrogen atoms can be field ionized in an hour than all the antimatter atoms that have been previously reported, and the production rate per incident high energy antiproton is higher than ever observed. The high rate and the high Rydberg states suggest that the antihydrogen is formed via three-body recombination.",

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doi = "10.1103/PhysRevLett.89.213401",

language = "English (US)",

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AU - Gabrielse, G.

AU - Bowden, N. S.

AU - Oxley, P.

AU - Speck, A.

AU - Storry, C. H.

AU - Tan, J. N.

AU - Wessels, M.

AU - Grzonka, D.

AU - Oelert, W.

AU - Schepers, G.

AU - Sefzick, T.

AU - Walz, J.

AU - Pittner, H.

AU - Hänsch, T. W.

AU - Hessels, E. A.

PY - 2002

Y1 - 2002

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AB - A background-free observation of cold antihydrogen atoms is made using field ionization followed by antiproton storage, a detection method that provides the first experimental information about antihydrogen atomic states. More antihydrogen atoms can be field ionized in an hour than all the antimatter atoms that have been previously reported, and the production rate per incident high energy antiproton is higher than ever observed. The high rate and the high Rydberg states suggest that the antihydrogen is formed via three-body recombination.

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Background-Free Observation of Cold Antihydrogen with Field-Ionization Analysis of Its States

Abstract

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