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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. Ø. 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

Nature Communications, Volume: 8, Issue: 1

Swansea University Author: Madsen, Niels

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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,...

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Published in: Nature Communications
ISSN: 2041-1723
Published: 2017
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spelling 2017-10-23T12:20:14Z v2 35624 2017-09-25 Antihydrogen accumulation for fundamental symmetry tests Niels Madsen Niels Madsen true 0000-0002-7372-0784 false e348e4d768ee19c1d0c68ce3a66d6303 5b150ca2904d3d989ca913d7d8d5aea3 JjELD9IFa0WnCcPYpl4KTdyvqZQRJmUl2lxhnzSZE7o= 2017-09-25 SPH 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. Journal article Nature Communications 8 1 2041-1723 25 9 2017 2017-09-25 10.1038/s41467-017-00760-9 https://www.nature.com/articles/s41467-017-00760-9 College of Science Physics CSCI SPH None Doctoral None 2017-10-23T12:20:14Z 2017-09-25T10:17:56Z College of Science Physics M. Ahmadi 1 B. X. R. Alves 2 C. J. Baker 3 W. Bertsche 4 E. Butler 5 A. Capra 6 C. Carruth 7 C. L. Cesar 8 M. Charlton 9 S. Cohen 10 R. Collister 11 S. Eriksson 12 A. Evans 13 N. Evetts 14 J. Fajans 15 T. Friesen 16 M. C. Fujiwara 17 D. R. Gill 18 A. Gutierrez 19 J. S. Hangst 20 W. N. Hardy 21 M. E. Hayden 22 C. A. Isaac 23 A. Ishida 24 M. A. Johnson 25 S. A. Jones 26 S. Jonsell 27 L. Kurchaninov 28 N. Madsen 29 M. Mathers 30 D. Maxwell 31 J. T. K. McKenna 32 S. Menary 33 J. M. Michan 34 T. Momose 35 J. J. Munich 36 P. Nolan 37 K. Olchanski 38 A. Olin 39 P. Pusa 40 C. Ø. Rasmussen 41 F. Robicheaux 42 R. L. Sacramento 43 M. Sameed 44 E. Sarid 45 D. M. Silveira 46 S. Stracka 47 G. Stutter 48 C. So 49 T. D. Tharp 50 J. E. Thompson 51 R. I. Thompson 52 D. P. van der Werf 53 J. S. Wurtele 54 0035624-23102017121903.pdf 35624.pdf 2017-10-23T12:19:03Z Output 720691 application/pdf VoR true Updated Copyright 23/10/2017 2017-09-25T00:00:00 This article is licensed under a Creative Commons Attribution 4.0 International License. true eng
title Antihydrogen accumulation for fundamental symmetry tests
spellingShingle Antihydrogen accumulation for fundamental symmetry tests
Madsen, Niels
title_short Antihydrogen accumulation for fundamental symmetry tests
title_full Antihydrogen accumulation for fundamental symmetry tests
title_fullStr Antihydrogen accumulation for fundamental symmetry tests
title_full_unstemmed Antihydrogen accumulation for fundamental symmetry tests
title_sort Antihydrogen accumulation for fundamental symmetry tests
author_id_str_mv e348e4d768ee19c1d0c68ce3a66d6303
author_id_fullname_str_mv e348e4d768ee19c1d0c68ce3a66d6303_***_Madsen, Niels
author Madsen, Niels
author2 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. Ø. 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
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publishDate 2017
institution Swansea University
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doi_str_mv 10.1038/s41467-017-00760-9
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url https://www.nature.com/articles/s41467-017-00760-9
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description 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.
published_date 2017-09-25T04:51:43Z
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score 10.621224