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Weakly bound positron–electron pairs in a strong magnetic field / C J Baker, D P van der Werf, D C S Beddows, P R Watkeys, C A Isaac, S J Kerrigan, M Charlton, H H Telle, Helmut Telle, Michael Charlton, Dirk van der Werf, Christopher Baker, Aled Isaac

Journal of Physics B: Atomic, Molecular and Optical Physics, Volume: 41, Issue: 24

Swansea University Authors: Helmut Telle, Michael Charlton, Dirk van der Werf, Christopher Baker, Aled Isaac

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Abstract

Weakly bound positron–electron pairs have been created in vacuum following low energy positron bombardment of a surface held at a temperature close to 4 K. The pairs, which behave as magnetized positronium atoms in the strong (>1 T) magnetic fields used in this experiment, were detected following...

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Published in: Journal of Physics B: Atomic, Molecular and Optical Physics
ISSN: 0953-4075 1361-6455
Published: 2008
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URI: https://cronfa.swan.ac.uk/Record/cronfa7173
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spelling 2019-06-13T17:52:32.0204270 v2 7173 2012-02-23 Weakly bound positron–electron pairs in a strong magnetic field 7f645d598f0afb573309bc5f86ea46fa Helmut Telle Helmut Telle true false d9099cdd0f182eb9a1c8fc36ed94f53f Michael Charlton Michael Charlton true false 4a4149ebce588e432f310f4ab44dd82a 0000-0001-5436-5214 Dirk van der Werf Dirk van der Werf true false 0c72afb63bd0c6089fc5b60bd096103e 0000-0002-9448-8419 Christopher Baker Christopher Baker true false 06d7ed42719ef7bb697cf780c63e26f0 0000-0002-7813-1903 Aled Isaac Aled Isaac true false 2012-02-23 COSCO Weakly bound positron–electron pairs have been created in vacuum following low energy positron bombardment of a surface held at a temperature close to 4 K. The pairs, which behave as magnetized positronium atoms in the strong (>1 T) magnetic fields used in this experiment, were detected following their field ionization using an arrangement of Penning traps. Yields, which at highest are around 5×10<super>−6</super> per incident positron, are presented and compared with previous work. Measurements of the behaviour of the yield as the distance from the production target to the ionization well was varied are presented and discussed, as are results taken for a fixed well at different magnetic fields. Both data sets were found to be consistent with a model in which the positronium moves across the magnetic field lines with a constant drift speed. Journal Article Journal of Physics B: Atomic, Molecular and Optical Physics 41 24 0953-4075 1361-6455 3 12 2008 2008-12-03 10.1088/0953-4075/41/24/245003 COLLEGE NANME College of Science Central Office COLLEGE CODE COSCO Swansea University 2019-06-13T17:52:32.0204270 2012-02-23T17:01:47.0000000 College of Science Physics C J Baker 1 D P van der Werf 2 D C S Beddows 3 P R Watkeys 4 C A Isaac 5 S J Kerrigan 6 M Charlton 7 H H Telle 8 Helmut Telle 9 Michael Charlton 10 Dirk van der Werf 0000-0001-5436-5214 11 Christopher Baker 0000-0002-9448-8419 12 Aled Isaac 0000-0002-7813-1903 13
title Weakly bound positron–electron pairs in a strong magnetic field
spellingShingle Weakly bound positron–electron pairs in a strong magnetic field
Helmut, Telle
Michael, Charlton
Dirk, van der Werf
Christopher, Baker
Aled, Isaac
title_short Weakly bound positron–electron pairs in a strong magnetic field
title_full Weakly bound positron–electron pairs in a strong magnetic field
title_fullStr Weakly bound positron–electron pairs in a strong magnetic field
title_full_unstemmed Weakly bound positron–electron pairs in a strong magnetic field
title_sort Weakly bound positron–electron pairs in a strong magnetic field
author_id_str_mv 7f645d598f0afb573309bc5f86ea46fa
d9099cdd0f182eb9a1c8fc36ed94f53f
4a4149ebce588e432f310f4ab44dd82a
0c72afb63bd0c6089fc5b60bd096103e
06d7ed42719ef7bb697cf780c63e26f0
author_id_fullname_str_mv 7f645d598f0afb573309bc5f86ea46fa_***_Helmut, Telle
d9099cdd0f182eb9a1c8fc36ed94f53f_***_Michael, Charlton
4a4149ebce588e432f310f4ab44dd82a_***_Dirk, van der Werf
0c72afb63bd0c6089fc5b60bd096103e_***_Christopher, Baker
06d7ed42719ef7bb697cf780c63e26f0_***_Aled, Isaac
author Helmut, Telle
Michael, Charlton
Dirk, van der Werf
Christopher, Baker
Aled, Isaac
author2 C J Baker
D P van der Werf
D C S Beddows
P R Watkeys
C A Isaac
S J Kerrigan
M Charlton
H H Telle
Helmut Telle
Michael Charlton
Dirk van der Werf
Christopher Baker
Aled Isaac
format Journal article
container_title Journal of Physics B: Atomic, Molecular and Optical Physics
container_volume 41
container_issue 24
publishDate 2008
institution Swansea University
issn 0953-4075
1361-6455
doi_str_mv 10.1088/0953-4075/41/24/245003
college_str College of Science
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hierarchy_top_id collegeofscience
hierarchy_top_title College of Science
hierarchy_parent_id collegeofscience
hierarchy_parent_title College of Science
department_str Physics{{{_:::_}}}College of Science{{{_:::_}}}Physics
document_store_str 0
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description Weakly bound positron–electron pairs have been created in vacuum following low energy positron bombardment of a surface held at a temperature close to 4 K. The pairs, which behave as magnetized positronium atoms in the strong (>1 T) magnetic fields used in this experiment, were detected following their field ionization using an arrangement of Penning traps. Yields, which at highest are around 5×10<super>−6</super> per incident positron, are presented and compared with previous work. Measurements of the behaviour of the yield as the distance from the production target to the ionization well was varied are presented and discussed, as are results taken for a fixed well at different magnetic fields. Both data sets were found to be consistent with a model in which the positronium moves across the magnetic field lines with a constant drift speed.
published_date 2008-12-03T03:18:41Z
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