Antihydrogen accumulation for fundamental symmetry tests

M. Ahmadi; B. X.R. Alves; C. J. Baker; W. Bertsche; E. Butler; A. Capra; C. Carruth; C. L. Cesar; M. Charlton; S. Cohen; R. Collister; S. Eriksson; A. Evans; N. Evetts; J. Fajans; T. Friesen; M. C. Fujiwara; D. R. Gill; A. Gutierrez; J. S. Hangst; W. N. Hardy; M. E. Hayden; C. A. Isaac; A. Ishida; M. A. Johnson; S. A. Jones; S. Jonsell; L. Kurchaninov; N. Madsen; M. Mathers; D. Maxwell; J. T.K. McKenna; S. Menary; J. M. Michan; T. Momose; J. J. Munich; P. Nolan; K. Olchanski; A. Olin; P. Pusa; C. O. Rasmussen; F. Robicheaux; R. L. Sacramento; M. Sameed; E. Sarid; D. M. Silveira; S. Stracka; G. Stutter; C. So; T. D. Tharp; J. E. Thompson; R. I. Thompson; D. P. Van Der Werf; J. S. Wurtele

doi:10.1038/s41467-017-00760-9

Antihydrogen accumulation for fundamental symmetry tests

M. Ahmadi, B. X.R. Alves, C. J. Baker, W. Bertsche, E. Butler, A. Capra, C. Carruth, C. L. Cesar, M. Charlton, S. Cohen, R. Collister, S. Eriksson, A. Evans, N. Evetts, J. Fajans, T. Friesen, M. C. Fujiwara, D. R. Gill, A. Gutierrez, J. S. HangstW. N. Hardy, M. E. Hayden, C. A. Isaac, A. Ishida, M. A. Johnson, S. A. Jones, S. Jonsell, L. Kurchaninov, N. Madsen, M. Mathers, D. Maxwell, J. T.K. McKenna, S. Menary, J. M. Michan, T. Momose, J. J. Munich, P. Nolan, K. Olchanski, A. Olin, P. Pusa, C. O. Rasmussen, F. Robicheaux, R. L. Sacramento, M. Sameed, E. Sarid, D. M. Silveira, S. Stracka, G. Stutter, C. So, T. D. Tharp, J. E. Thompson, R. I. Thompson, D. P. Van Der Werf, J. S. Wurtele

Department of Physics

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62 Scopus citations

Abstract

Antihydrogen, a positron bound to an antiproton, is the simplest anti-atom. Its structure and properties are expected to mirror those of the hydrogen atom. Prospects for precision comparisons of the two, as tests of fundamental symmetries, are driving a vibrant programme of research. In this regard, a limiting factor in most experiments is the availability of large numbers of cold ground state antihydrogen atoms. Here, we describe how an improved synthesis process results in a maximum rate of 10.5 ± 0.6 atoms trapped and detected per cycle, corresponding to more than an order of magnitude improvement over previous work. Additionally, we demonstrate how detailed control of electron, positron and antiproton plasmas enables repeated formation and trapping of antihydrogen atoms, with the simultaneous retention of atoms produced in previous cycles. We report a record of 54 detected annihilation events from a single release of the trapped anti-atoms accumulated from five consecutive cycles.

Original language	English
Article number	681
Journal	Nature Communications
Volume	8
Issue number	1
DOIs	https://doi.org/10.1038/s41467-017-00760-9
State	Published - 1 Dec 2017

ASJC Scopus subject areas

General Chemistry
General Biochemistry, Genetics and Molecular Biology
General Physics and Astronomy

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10.1038/s41467-017-00760-9

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Ahmadi, M., Alves, B. X. R., Baker, C. J., Bertsche, W., Butler, E., Capra, A., Carruth, C., Cesar, C. L., Charlton, M., Cohen, S., Collister, R., Eriksson, S., Evans, A., Evetts, N., Fajans, J., Friesen, T., Fujiwara, M. C., Gill, D. R., Gutierrez, A., ... Wurtele, J. S. (2017). Antihydrogen accumulation for fundamental symmetry tests. Nature Communications, 8(1), Article 681. https://doi.org/10.1038/s41467-017-00760-9

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title = "Antihydrogen accumulation for fundamental symmetry tests",

abstract = "Antihydrogen, a positron bound to an antiproton, is the simplest anti-atom. Its structure and properties are expected to mirror those of the hydrogen atom. Prospects for precision comparisons of the two, as tests of fundamental symmetries, are driving a vibrant programme of research. In this regard, a limiting factor in most experiments is the availability of large numbers of cold ground state antihydrogen atoms. Here, we describe how an improved synthesis process results in a maximum rate of 10.5 ± 0.6 atoms trapped and detected per cycle, corresponding to more than an order of magnitude improvement over previous work. Additionally, we demonstrate how detailed control of electron, positron and antiproton plasmas enables repeated formation and trapping of antihydrogen atoms, with the simultaneous retention of atoms produced in previous cycles. We report a record of 54 detected annihilation events from a single release of the trapped anti-atoms accumulated from five consecutive cycles.",

author = "M. Ahmadi and Alves, {B. X.R.} and Baker, {C. J.} and W. Bertsche and E. Butler and A. Capra and C. Carruth and Cesar, {C. L.} and M. Charlton and S. Cohen and R. Collister and S. Eriksson and A. Evans and N. Evetts and J. Fajans and T. Friesen and Fujiwara, {M. C.} and Gill, {D. R.} and A. Gutierrez and Hangst, {J. S.} and Hardy, {W. N.} and Hayden, {M. E.} and Isaac, {C. A.} and A. Ishida and Johnson, {M. A.} and Jones, {S. A.} and S. Jonsell and L. Kurchaninov and N. Madsen and M. Mathers and D. Maxwell and McKenna, {J. T.K.} and S. Menary and Michan, {J. M.} and T. Momose and Munich, {J. J.} and P. Nolan and K. Olchanski and A. Olin and P. Pusa and Rasmussen, {C. O.} and F. Robicheaux and Sacramento, {R. L.} and M. Sameed and E. Sarid and Silveira, {D. M.} and S. Stracka and G. Stutter and C. So and Tharp, {T. D.} and Thompson, {J. E.} and Thompson, {R. I.} and {Van Der Werf}, {D. P.} and Wurtele, {J. S.}",

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doi = "10.1038/s41467-017-00760-9",

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Ahmadi, M, Alves, BXR, Baker, CJ, Bertsche, W, Butler, E, Capra, A, Carruth, C, Cesar, CL, Charlton, M, Cohen, S, Collister, R, Eriksson, S, Evans, A, Evetts, N, Fajans, J, Friesen, T, Fujiwara, MC, Gill, DR, Gutierrez, A, Hangst, JS, Hardy, WN, Hayden, ME, Isaac, CA, Ishida, A, Johnson, MA, Jones, SA, Jonsell, S, Kurchaninov, L, Madsen, N, Mathers, M, Maxwell, D, McKenna, JTK, Menary, S, Michan, JM, Momose, T, Munich, JJ, Nolan, P, Olchanski, K, Olin, A, Pusa, P, Rasmussen, CO, Robicheaux, F, Sacramento, RL, Sameed, M, Sarid, E, Silveira, DM, Stracka, S, Stutter, G, So, C, Tharp, TD, Thompson, JE, Thompson, RI, Van Der Werf, DP & Wurtele, JS 2017, 'Antihydrogen accumulation for fundamental symmetry tests', Nature Communications, vol. 8, no. 1, 681. https://doi.org/10.1038/s41467-017-00760-9

TY - JOUR

T1 - Antihydrogen accumulation for fundamental symmetry tests

AU - Ahmadi, M.

AU - Alves, B. X.R.

AU - Baker, C. J.

AU - Bertsche, W.

AU - Butler, E.

AU - Capra, A.

AU - Carruth, C.

AU - Cesar, C. L.

AU - Charlton, M.

AU - Cohen, S.

AU - Collister, R.

AU - Eriksson, S.

AU - Evans, A.

AU - Evetts, N.

AU - Fajans, J.

AU - Friesen, T.

AU - Fujiwara, M. C.

AU - Gill, D. R.

AU - Gutierrez, A.

AU - Hangst, J. S.

AU - Hardy, W. N.

AU - Hayden, M. E.

AU - Isaac, C. A.

AU - Ishida, A.

AU - Johnson, M. A.

AU - Jones, S. A.

AU - Jonsell, S.

AU - Kurchaninov, L.

AU - Madsen, N.

AU - Mathers, M.

AU - Maxwell, D.

AU - McKenna, J. T.K.

AU - Menary, S.

AU - Michan, J. M.

AU - Momose, T.

AU - Munich, J. J.

AU - Nolan, P.

AU - Olchanski, K.

AU - Olin, A.

AU - Pusa, P.

AU - Rasmussen, C. O.

AU - Robicheaux, F.

AU - Sacramento, R. L.

AU - Sameed, M.

AU - Sarid, E.

AU - Silveira, D. M.

AU - Stracka, S.

AU - Stutter, G.

AU - So, C.

AU - Tharp, T. D.

AU - Thompson, J. E.

AU - Thompson, R. I.

AU - Van Der Werf, D. P.

AU - Wurtele, J. S.

PY - 2017/12/1

Y1 - 2017/12/1

N2 - Antihydrogen, a positron bound to an antiproton, is the simplest anti-atom. Its structure and properties are expected to mirror those of the hydrogen atom. Prospects for precision comparisons of the two, as tests of fundamental symmetries, are driving a vibrant programme of research. In this regard, a limiting factor in most experiments is the availability of large numbers of cold ground state antihydrogen atoms. Here, we describe how an improved synthesis process results in a maximum rate of 10.5 ± 0.6 atoms trapped and detected per cycle, corresponding to more than an order of magnitude improvement over previous work. Additionally, we demonstrate how detailed control of electron, positron and antiproton plasmas enables repeated formation and trapping of antihydrogen atoms, with the simultaneous retention of atoms produced in previous cycles. We report a record of 54 detected annihilation events from a single release of the trapped anti-atoms accumulated from five consecutive cycles.

AB - Antihydrogen, a positron bound to an antiproton, is the simplest anti-atom. Its structure and properties are expected to mirror those of the hydrogen atom. Prospects for precision comparisons of the two, as tests of fundamental symmetries, are driving a vibrant programme of research. In this regard, a limiting factor in most experiments is the availability of large numbers of cold ground state antihydrogen atoms. Here, we describe how an improved synthesis process results in a maximum rate of 10.5 ± 0.6 atoms trapped and detected per cycle, corresponding to more than an order of magnitude improvement over previous work. Additionally, we demonstrate how detailed control of electron, positron and antiproton plasmas enables repeated formation and trapping of antihydrogen atoms, with the simultaneous retention of atoms produced in previous cycles. We report a record of 54 detected annihilation events from a single release of the trapped anti-atoms accumulated from five consecutive cycles.

UR - http://www.scopus.com/inward/record.url?scp=85029833276&partnerID=8YFLogxK

U2 - 10.1038/s41467-017-00760-9

DO - 10.1038/s41467-017-00760-9

M3 - Article

C2 - 28947794

AN - SCOPUS:85029833276

SN - 2041-1723

VL - 8

JO - Nature Communications

JF - Nature Communications

IS - 1

M1 - 681

ER -

Antihydrogen accumulation for fundamental symmetry tests

Abstract

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