Towards antihydrogen trapping and spectroscopy at ALPHA

E. Butler; G. B. Andresen; M. D. Ashkezari; M. Baquero-Ruiz; W. Bertsche; P. D. Bowe; C. C. Bray; C. L. Cesar; S. Chapman; M. Charlton; J. Fajans; T. Friesen; M. C. Fujiwara; D. R. Gill; J. S. Hangst; W. N. Hardy; R. S. Hayano; M. E. Hayden; A. J. Humphries; R. Hydomako; S. Jonsell; L. Kurchaninov; R. Lambo; N. Madsen; S. Menary; P. Nolan; K. Olchanski; A. Olin; A. Povilus; P. Pusa; F. Robicheaux; E. Sarid; D. M. Silveira; C. So; J. W. Storey; R. I. Thompson; D. P. van der Werf; D. Wilding; J. S. Wurtele; Y. Yamazaki

doi:10.1007/s10751-011-0299-3

Towards antihydrogen trapping and spectroscopy at ALPHA

E. Butler, G. B. Andresen, M. D. Ashkezari, M. Baquero-Ruiz, W. Bertsche, P. D. Bowe, C. C. Bray, C. L. Cesar, S. Chapman, M. Charlton, J. Fajans, T. Friesen, M. C. Fujiwara, D. R. Gill, J. S. Hangst, W. N. Hardy, R. S. Hayano, M. E. Hayden, A. J. Humphries, R. HydomakoS. Jonsell, L. Kurchaninov, R. Lambo, N. Madsen, S. Menary, P. Nolan, K. Olchanski, A. Olin, A. Povilus, P. Pusa, F. Robicheaux, E. Sarid, D. M. Silveira, C. So, J. W. Storey, R. I. Thompson, D. P. van der Werf, D. Wilding, J. S. Wurtele, Y. Yamazaki

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

Abstract

Spectroscopy of antihydrogen has the potential to yield high-precision tests of the CPT theorem and shed light on the matter-antimatter imbalance in the Universe. The ALPHA antihydrogen trap at CERN's Antiproton Decelerator aims to prepare a sample of antihydrogen atoms confined in an octupole-based Ioffe trap and to measure the frequency of several atomic transitions. We describe our techniques to directly measure the antiproton temperature and a new technique to cool them to below 10 K. We also show how our unique position-sensitive annihilation detector provides us with a highly sensitive method of identifying antiproton annihilations and effectively rejecting the cosmic-ray background.

Original language	English
Pages (from-to)	39-48
Number of pages	10
Journal	Hyperfine Interactions
Volume	199
Issue number	1
DOIs	https://doi.org/10.1007/s10751-011-0299-3
State	Published - 1 Jan 2011
Externally published	Yes

Keywords

Antihydrogen
Antimatter
Atom trap
CPT
Penning trap

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Nuclear and High Energy Physics
Condensed Matter Physics
Physical and Theoretical Chemistry

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10.1007/s10751-011-0299-3

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Butler, E., Andresen, G. B., Ashkezari, M. D., Baquero-Ruiz, M., Bertsche, W., Bowe, P. D., Bray, C. C., Cesar, C. L., Chapman, S., Charlton, M., Fajans, J., Friesen, T., Fujiwara, M. C., Gill, D. R., Hangst, J. S., Hardy, W. N., Hayano, R. S., Hayden, M. E., Humphries, A. J., ... Yamazaki, Y. (2011). Towards antihydrogen trapping and spectroscopy at ALPHA. Hyperfine Interactions, 199(1), 39-48. https://doi.org/10.1007/s10751-011-0299-3

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title = "Towards antihydrogen trapping and spectroscopy at ALPHA",

abstract = "Spectroscopy of antihydrogen has the potential to yield high-precision tests of the CPT theorem and shed light on the matter-antimatter imbalance in the Universe. The ALPHA antihydrogen trap at CERN's Antiproton Decelerator aims to prepare a sample of antihydrogen atoms confined in an octupole-based Ioffe trap and to measure the frequency of several atomic transitions. We describe our techniques to directly measure the antiproton temperature and a new technique to cool them to below 10 K. We also show how our unique position-sensitive annihilation detector provides us with a highly sensitive method of identifying antiproton annihilations and effectively rejecting the cosmic-ray background.",

keywords = "Antihydrogen, Antimatter, Atom trap, CPT, Penning trap",

author = "E. Butler and Andresen, {G. B.} and Ashkezari, {M. D.} and M. Baquero-Ruiz and W. Bertsche and Bowe, {P. D.} and Bray, {C. C.} and Cesar, {C. L.} and S. Chapman and M. Charlton and J. Fajans and T. Friesen and Fujiwara, {M. C.} and Gill, {D. R.} and Hangst, {J. S.} and Hardy, {W. N.} and Hayano, {R. S.} and Hayden, {M. E.} and Humphries, {A. J.} and R. Hydomako and S. Jonsell and L. Kurchaninov and R. Lambo and N. Madsen and S. Menary and P. Nolan and K. Olchanski and A. Olin and A. Povilus and P. Pusa and F. Robicheaux and E. Sarid and Silveira, {D. M.} and C. So and Storey, {J. W.} and Thompson, {R. I.} and {van der Werf}, {D. P.} and D. Wilding and Wurtele, {J. S.} and Y. Yamazaki",

year = "2011",

month = jan,

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doi = "10.1007/s10751-011-0299-3",

language = "English",

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Butler, E, Andresen, GB, Ashkezari, MD, Baquero-Ruiz, M, Bertsche, W, Bowe, PD, Bray, CC, Cesar, CL, Chapman, S, Charlton, M, Fajans, J, Friesen, T, Fujiwara, MC, Gill, DR, Hangst, JS, Hardy, WN, Hayano, RS, Hayden, ME, Humphries, AJ, Hydomako, R, Jonsell, S, Kurchaninov, L, Lambo, R, Madsen, N, Menary, S, Nolan, P, Olchanski, K, Olin, A, Povilus, A, Pusa, P, Robicheaux, F, Sarid, E, Silveira, DM, So, C, Storey, JW, Thompson, RI, van der Werf, DP, Wilding, D, Wurtele, JS & Yamazaki, Y 2011, 'Towards antihydrogen trapping and spectroscopy at ALPHA', Hyperfine Interactions, vol. 199, no. 1, pp. 39-48. https://doi.org/10.1007/s10751-011-0299-3

TY - JOUR

T1 - Towards antihydrogen trapping and spectroscopy at ALPHA

AU - Butler, E.

AU - Andresen, G. B.

AU - Ashkezari, M. D.

AU - Baquero-Ruiz, M.

AU - Bertsche, W.

AU - Bowe, P. D.

AU - Bray, C. C.

AU - Cesar, C. L.

AU - Chapman, S.

AU - Charlton, M.

AU - Fajans, J.

AU - Friesen, T.

AU - Fujiwara, M. C.

AU - Gill, D. R.

AU - Hangst, J. S.

AU - Hardy, W. N.

AU - Hayano, R. S.

AU - Hayden, M. E.

AU - Humphries, A. J.

AU - Hydomako, R.

AU - Jonsell, S.

AU - Kurchaninov, L.

AU - Lambo, R.

AU - Madsen, N.

AU - Menary, S.

AU - Nolan, P.

AU - Olchanski, K.

AU - Olin, A.

AU - Povilus, A.

AU - Pusa, P.

AU - Robicheaux, F.

AU - Sarid, E.

AU - Silveira, D. M.

AU - So, C.

AU - Storey, J. W.

AU - Thompson, R. I.

AU - van der Werf, D. P.

AU - Wilding, D.

AU - Wurtele, J. S.

AU - Yamazaki, Y.

PY - 2011/1/1

Y1 - 2011/1/1

N2 - Spectroscopy of antihydrogen has the potential to yield high-precision tests of the CPT theorem and shed light on the matter-antimatter imbalance in the Universe. The ALPHA antihydrogen trap at CERN's Antiproton Decelerator aims to prepare a sample of antihydrogen atoms confined in an octupole-based Ioffe trap and to measure the frequency of several atomic transitions. We describe our techniques to directly measure the antiproton temperature and a new technique to cool them to below 10 K. We also show how our unique position-sensitive annihilation detector provides us with a highly sensitive method of identifying antiproton annihilations and effectively rejecting the cosmic-ray background.

AB - Spectroscopy of antihydrogen has the potential to yield high-precision tests of the CPT theorem and shed light on the matter-antimatter imbalance in the Universe. The ALPHA antihydrogen trap at CERN's Antiproton Decelerator aims to prepare a sample of antihydrogen atoms confined in an octupole-based Ioffe trap and to measure the frequency of several atomic transitions. We describe our techniques to directly measure the antiproton temperature and a new technique to cool them to below 10 K. We also show how our unique position-sensitive annihilation detector provides us with a highly sensitive method of identifying antiproton annihilations and effectively rejecting the cosmic-ray background.

KW - Antihydrogen

KW - Antimatter

KW - Atom trap

KW - CPT

KW - Penning trap

UR - http://www.scopus.com/inward/record.url?scp=85028110133&partnerID=8YFLogxK

U2 - 10.1007/s10751-011-0299-3

DO - 10.1007/s10751-011-0299-3

M3 - Article

AN - SCOPUS:85028110133

SN - 0304-3843

VL - 199

SP - 39

EP - 48

JO - Hyperfine Interactions

JF - Hyperfine Interactions

IS - 1

ER -

Towards antihydrogen trapping and spectroscopy at ALPHA

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Keywords

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