First measurement of the velocity of slow antihydrogen atoms

G. Gabrielse; A. Speck; C. H. Storry; D. LeSage; N. Guise; D. Grzonka; W. Oelert; G. Schepers; T. Sefzick; H. Pittner; J. Walz; T. W. Hänsch; D. Comeau; E. A. Hessels

doi:10.1103/PhysRevLett.93.073401

First measurement of the velocity of slow antihydrogen atoms

G. Gabrielse^*, A. Speck, C. H. Storry, D. LeSage, N. Guise, D. Grzonka, W. Oelert, G. Schepers, T. Sefzick, H. Pittner, J. Walz, T. W. Hänsch, D. Comeau, E. A. Hessels

^*Corresponding author for this work

Physics and Astronomy

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71 Scopus citations

Abstract

The speed of antihydrogen atom which was deduced from the fraction that passed through an oscillating electric field without ionizing was discussed. The measurements were found to be accurate for most weakly bound states. The measurements revealed that the velocity of antihydrogen atom depended on the strength of the driving force, the number and density of the e⁺ and p̄ and the binding energy or size of the H̄ atoms. A slower H̄ was found to be produced by slowly lowering the depth of the center well in the nested Penning trap.

Original language	English (US)
Article number	073401
Pages (from-to)	073401-1-073401-4
Journal	Physical review letters
Volume	93
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevLett.93.073401
State	Published - Aug 13 2004

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.93.073401

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title = "First measurement of the velocity of slow antihydrogen atoms",

abstract = "The speed of antihydrogen atom which was deduced from the fraction that passed through an oscillating electric field without ionizing was discussed. The measurements were found to be accurate for most weakly bound states. The measurements revealed that the velocity of antihydrogen atom depended on the strength of the driving force, the number and density of the e+ and {\=p} and the binding energy or size of the {\=H} atoms. A slower {\=H} was found to be produced by slowly lowering the depth of the center well in the nested Penning trap.",

author = "G. Gabrielse and A. Speck and Storry, {C. H.} and D. LeSage and N. Guise and D. Grzonka and W. Oelert and G. Schepers and T. Sefzick and H. Pittner and J. Walz and H{\"a}nsch, {T. W.} and D. Comeau and Hessels, {E. A.}",

note = "Funding Information: We are grateful to CERN, its PS Division and the AD team for delivering antiprotons. This work was supported by the NSF and AFOSR of the U.S., the BMBF, MPG, and FZ-J of Germany, and the NSERC, CRC, CFI, and OIT of Canada.",

year = "2004",

month = aug,

day = "13",

doi = "10.1103/PhysRevLett.93.073401",

language = "English (US)",

volume = "93",

pages = "073401--1--073401--4",

journal = "Physical Review Letters",

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publisher = "American Physical Society",

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First measurement of the velocity of slow antihydrogen atoms. / Gabrielse, G.; Speck, A.; Storry, C. H.; LeSage, D.; Guise, N.; Grzonka, D.; Oelert, W.; Schepers, G.; Sefzick, T.; Pittner, H.; Walz, J.; Hänsch, T. W.; Comeau, D.; Hessels, E. A.

In: Physical review letters, Vol. 93, No. 7, 073401, 13.08.2004, p. 073401-1-073401-4.

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

TY - JOUR

T1 - First measurement of the velocity of slow antihydrogen atoms

AU - Gabrielse, G.

AU - Speck, A.

AU - Storry, C. H.

AU - LeSage, D.

AU - Guise, N.

AU - Grzonka, D.

AU - Oelert, W.

AU - Schepers, G.

AU - Sefzick, T.

AU - Pittner, H.

AU - Walz, J.

AU - Hänsch, T. W.

AU - Comeau, D.

AU - Hessels, E. A.

N1 - Funding Information: We are grateful to CERN, its PS Division and the AD team for delivering antiprotons. This work was supported by the NSF and AFOSR of the U.S., the BMBF, MPG, and FZ-J of Germany, and the NSERC, CRC, CFI, and OIT of Canada.

PY - 2004/8/13

Y1 - 2004/8/13

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First measurement of the velocity of slow antihydrogen atoms

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