ATRAP - On the way to trapped antihydrogen

D. Grzonka; D. Comeau; G. Gabrielse; F. Goldenbaum; T. W. Hänsch; E. A. Hessels; P. Larochelle; D. Lesage; B. Levitt; W. Oelert; H. Pittner; T. Sefzick; A. Speck; C. H. Storry; J. Walz; Z. Zhang

doi:10.1063/1.2121975

ATRAP - On the way to trapped antihydrogen

D. Grzonka^*, D. Comeau, G. Gabrielse, F. Goldenbaum, T. W. Hänsch, E. A. Hessels, P. Larochelle, D. Lesage, B. Levitt, W. Oelert, H. Pittner, T. Sefzick, A. Speck, C. H. Storry, J. Walz, Z. Zhang

^*Corresponding author for this work

Physics and Astronomy

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The ATRAP experiment at the CERN antiproton decelerator AD aims for a test of the CPT invariance by a high precision comparison of the 1s-2s transition in the hydrogen and the antihydrogen atom. Antihydrogen production is routinely operated at ATRAP and detailed studies have been performed in order to optimize the production efficiency of useful antihydrogen. The shape parameters of the antiproton and positron clouds, the n-state distribution of the produced Rydberg antihydrogen atoms and the antihydrogen velocity have been studied. Furthermore an alternative method of laser controlled antihydrogen production was successfully applied. For high precision measurements of atomic transitions cold antihydrogen in the ground state is required which must be trapped due to the low number of available antihydrogen atoms compared to the cold hydrogen beam used for hydrogen spectroscopy. To ensure a reasonable antihydrogen trapping efficiency a magnetic trap has to be superposed the nested Penning trap. First trapping tests of charged particles within a combined magnetic/Penning trap have started at ATRAP.

Original language	English (US)
Title of host publication	PHYSICS WITH ULTRA SLOW ANTIPROTON BEAMS
Pages	122-135
Number of pages	14
DOIs	https://doi.org/10.1063/1.2121975
State	Published - Oct 19 2005
Event	PHYSICS WITH ULTRA SLOW ANTIPROTON BEAMS - Wako, Japan Duration: Mar 14 2005 → Mar 16 2005

Publication series

Name	AIP Conference Proceedings
Volume	793
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	PHYSICS WITH ULTRA SLOW ANTIPROTON BEAMS
Country/Territory	Japan
City	Wako
Period	3/14/05 → 3/16/05

Keywords

Antihydrogen
Laser controlled recombination
Nested trap

ASJC Scopus subject areas

General Physics and Astronomy

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10.1063/1.2121975

Cite this

Grzonka, D., Comeau, D., Gabrielse, G., Goldenbaum, F., Hänsch, T. W., Hessels, E. A., Larochelle, P., Lesage, D., Levitt, B., Oelert, W., Pittner, H., Sefzick, T., Speck, A., Storry, C. H., Walz, J., & Zhang, Z. (2005). ATRAP - On the way to trapped antihydrogen. In PHYSICS WITH ULTRA SLOW ANTIPROTON BEAMS (pp. 122-135). (AIP Conference Proceedings; Vol. 793). https://doi.org/10.1063/1.2121975

@inproceedings{28f33703dfb747b78b6f142be01e2490,

title = "ATRAP - On the way to trapped antihydrogen",

abstract = "The ATRAP experiment at the CERN antiproton decelerator AD aims for a test of the CPT invariance by a high precision comparison of the 1s-2s transition in the hydrogen and the antihydrogen atom. Antihydrogen production is routinely operated at ATRAP and detailed studies have been performed in order to optimize the production efficiency of useful antihydrogen. The shape parameters of the antiproton and positron clouds, the n-state distribution of the produced Rydberg antihydrogen atoms and the antihydrogen velocity have been studied. Furthermore an alternative method of laser controlled antihydrogen production was successfully applied. For high precision measurements of atomic transitions cold antihydrogen in the ground state is required which must be trapped due to the low number of available antihydrogen atoms compared to the cold hydrogen beam used for hydrogen spectroscopy. To ensure a reasonable antihydrogen trapping efficiency a magnetic trap has to be superposed the nested Penning trap. First trapping tests of charged particles within a combined magnetic/Penning trap have started at ATRAP.",

keywords = "Antihydrogen, Laser controlled recombination, Nested trap",

author = "D. Grzonka and D. Comeau and G. Gabrielse and F. Goldenbaum and H{\"a}nsch, {T. W.} and Hessels, {E. A.} and P. Larochelle and D. Lesage and B. Levitt and W. Oelert and H. Pittner and T. Sefzick and A. Speck and Storry, {C. H.} and J. Walz and Z. Zhang",

year = "2005",

month = oct,

day = "19",

doi = "10.1063/1.2121975",

language = "English (US)",

isbn = "0735402825",

series = "AIP Conference Proceedings",

pages = "122--135",

booktitle = "PHYSICS WITH ULTRA SLOW ANTIPROTON BEAMS",

note = "PHYSICS WITH ULTRA SLOW ANTIPROTON BEAMS ; Conference date: 14-03-2005 Through 16-03-2005",

}

Grzonka, D, Comeau, D, Gabrielse, G, Goldenbaum, F, Hänsch, TW, Hessels, EA, Larochelle, P, Lesage, D, Levitt, B, Oelert, W, Pittner, H, Sefzick, T, Speck, A, Storry, CH, Walz, J & Zhang, Z 2005, ATRAP - On the way to trapped antihydrogen. in PHYSICS WITH ULTRA SLOW ANTIPROTON BEAMS. AIP Conference Proceedings, vol. 793, pp. 122-135, PHYSICS WITH ULTRA SLOW ANTIPROTON BEAMS, Wako, Japan, 3/14/05. https://doi.org/10.1063/1.2121975

TY - GEN

T1 - ATRAP - On the way to trapped antihydrogen

AU - Grzonka, D.

AU - Comeau, D.

AU - Gabrielse, G.

AU - Goldenbaum, F.

AU - Hänsch, T. W.

AU - Hessels, E. A.

AU - Larochelle, P.

AU - Lesage, D.

AU - Levitt, B.

AU - Oelert, W.

AU - Pittner, H.

AU - Sefzick, T.

AU - Speck, A.

AU - Storry, C. H.

AU - Walz, J.

AU - Zhang, Z.

PY - 2005/10/19

Y1 - 2005/10/19

N2 - The ATRAP experiment at the CERN antiproton decelerator AD aims for a test of the CPT invariance by a high precision comparison of the 1s-2s transition in the hydrogen and the antihydrogen atom. Antihydrogen production is routinely operated at ATRAP and detailed studies have been performed in order to optimize the production efficiency of useful antihydrogen. The shape parameters of the antiproton and positron clouds, the n-state distribution of the produced Rydberg antihydrogen atoms and the antihydrogen velocity have been studied. Furthermore an alternative method of laser controlled antihydrogen production was successfully applied. For high precision measurements of atomic transitions cold antihydrogen in the ground state is required which must be trapped due to the low number of available antihydrogen atoms compared to the cold hydrogen beam used for hydrogen spectroscopy. To ensure a reasonable antihydrogen trapping efficiency a magnetic trap has to be superposed the nested Penning trap. First trapping tests of charged particles within a combined magnetic/Penning trap have started at ATRAP.

AB - The ATRAP experiment at the CERN antiproton decelerator AD aims for a test of the CPT invariance by a high precision comparison of the 1s-2s transition in the hydrogen and the antihydrogen atom. Antihydrogen production is routinely operated at ATRAP and detailed studies have been performed in order to optimize the production efficiency of useful antihydrogen. The shape parameters of the antiproton and positron clouds, the n-state distribution of the produced Rydberg antihydrogen atoms and the antihydrogen velocity have been studied. Furthermore an alternative method of laser controlled antihydrogen production was successfully applied. For high precision measurements of atomic transitions cold antihydrogen in the ground state is required which must be trapped due to the low number of available antihydrogen atoms compared to the cold hydrogen beam used for hydrogen spectroscopy. To ensure a reasonable antihydrogen trapping efficiency a magnetic trap has to be superposed the nested Penning trap. First trapping tests of charged particles within a combined magnetic/Penning trap have started at ATRAP.

KW - Antihydrogen

KW - Laser controlled recombination

KW - Nested trap

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ER -

ATRAP - On the way to trapped antihydrogen

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