Conference Paper/Proceeding/Abstract 1134 views
Antihydrogen Physics
Proceedings of the International School of Physics "Enrico Fermi" Course CLXXIV "Physics with Many Positrons", Pages: 189 - 215
Swansea University Author:
Dirk van der Werf
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DOI (Published version): 10.3254/978-1-60750-646-1-189
Abstract
Sustained advances in the trapping of positrons and antiprotons led to the recent creation of cold antihydrogen in vacuum under controlled conditions. This was achieved at the unique Antiproton Decelerator facility located at CERN, Geneva. The collection, manipulation and mixing of clouds of the ant...
Published in: | Proceedings of the International School of Physics "Enrico Fermi" Course CLXXIV "Physics with Many Positrons" |
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IOS
2010
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URI: | https://cronfa.swan.ac.uk/Record/cronfa8007 |
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2013-06-18T12:02:38.0693159 v2 8007 2012-02-22 Antihydrogen Physics 4a4149ebce588e432f310f4ab44dd82a 0000-0001-5436-5214 Dirk van der Werf Dirk van der Werf true false 2012-02-22 SPH Sustained advances in the trapping of positrons and antiprotons led to the recent creation of cold antihydrogen in vacuum under controlled conditions. This was achieved at the unique Antiproton Decelerator facility located at CERN, Geneva. The collection, manipulation and mixing of clouds of the antiparticles necessary to promote antihydrogen formation are described herein, including some of the more practical aspects of positron accumulation. This discussion is prefaced by a treatment of basic Penning trap and plasma physics of relevance to antihydrogen formation. The detection of the nascent antihydrogen atoms, both via their annihilation on Penning trap electrodes and following field ionization of weakly-bound pairs, is reviewed. We present a brief description of aspects of the physics output of the antihydrogen experiments in terms of the nature of the states which are formed and implications of measurements of the spatial distribution of antihydrogen annihilation events. Theoretical simulations of antihydrogen formation have been useful in providing guidance in interpreting experimental data, and aspects of this work are reviewed. Trapping of neutral systems using a magnetic field minimum device is described and the new ALPHA antihydrogen trapping experiment is introduced. We conclude with a look to the future of the new field of antihydrogen physics. Conference Paper/Proceeding/Abstract Proceedings of the International School of Physics "Enrico Fermi" Course CLXXIV "Physics with Many Positrons" 189 215 IOS 31 12 2010 2010-12-31 10.3254/978-1-60750-646-1-189 COLLEGE NANME Physics COLLEGE CODE SPH Swansea University 2013-06-18T12:02:38.0693159 2012-02-22T13:37:04.0000000 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics M Charlton 1 D. P. van der Werf 2 Dirk van der Werf 0000-0001-5436-5214 3 |
title |
Antihydrogen Physics |
spellingShingle |
Antihydrogen Physics Dirk van der Werf |
title_short |
Antihydrogen Physics |
title_full |
Antihydrogen Physics |
title_fullStr |
Antihydrogen Physics |
title_full_unstemmed |
Antihydrogen Physics |
title_sort |
Antihydrogen Physics |
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4a4149ebce588e432f310f4ab44dd82a |
author_id_fullname_str_mv |
4a4149ebce588e432f310f4ab44dd82a_***_Dirk van der Werf |
author |
Dirk van der Werf |
author2 |
M Charlton D. P. van der Werf Dirk van der Werf |
format |
Conference Paper/Proceeding/Abstract |
container_title |
Proceedings of the International School of Physics "Enrico Fermi" Course CLXXIV "Physics with Many Positrons" |
container_start_page |
189 |
publishDate |
2010 |
institution |
Swansea University |
doi_str_mv |
10.3254/978-1-60750-646-1-189 |
publisher |
IOS |
college_str |
Faculty of Science and Engineering |
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
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School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics |
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description |
Sustained advances in the trapping of positrons and antiprotons led to the recent creation of cold antihydrogen in vacuum under controlled conditions. This was achieved at the unique Antiproton Decelerator facility located at CERN, Geneva. The collection, manipulation and mixing of clouds of the antiparticles necessary to promote antihydrogen formation are described herein, including some of the more practical aspects of positron accumulation. This discussion is prefaced by a treatment of basic Penning trap and plasma physics of relevance to antihydrogen formation. The detection of the nascent antihydrogen atoms, both via their annihilation on Penning trap electrodes and following field ionization of weakly-bound pairs, is reviewed. We present a brief description of aspects of the physics output of the antihydrogen experiments in terms of the nature of the states which are formed and implications of measurements of the spatial distribution of antihydrogen annihilation events. Theoretical simulations of antihydrogen formation have been useful in providing guidance in interpreting experimental data, and aspects of this work are reviewed. Trapping of neutral systems using a magnetic field minimum device is described and the new ALPHA antihydrogen trapping experiment is introduced. We conclude with a look to the future of the new field of antihydrogen physics. |
published_date |
2010-12-31T03:10:02Z |
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1763749923611738112 |
score |
11.021648 |