Journal article 1326 views
Antihydrogen detection in ALPHA
Hyperfine Interactions, Volume: 212, Issue: 1-3, Pages: 91 - 99
Swansea University Authors: Niels Madsen , Dirk van der Werf
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DOI (Published version): 10.1007/s10751-011-0456-8
Abstract
The ALPHA project is an international collaboration, based at CERN, with the experimental goal of performing precision spectroscopic measurements on antihydrogen. As part of this endeavor, the ALPHA experiment includes a silicon tracking detector. This detector consists of a three-layer array of sil...
Published in: | Hyperfine Interactions |
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ISSN: | 0304-3843 1572-9540 |
Published: |
2012
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Online Access: |
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URI: | https://cronfa.swan.ac.uk/Record/cronfa13701 |
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Abstract: |
The ALPHA project is an international collaboration, based at CERN, with the experimental goal of performing precision spectroscopic measurements on antihydrogen. As part of this endeavor, the ALPHA experiment includes a silicon tracking detector. This detector consists of a three-layer array of silicon modules surrounding the antihydrogen trapping region of the ALPHA apparatus. Using thisdevice, the antihydrogen annihilation position can be determined with a spatial resolution of better than 5 mm. Knowledge of the annihilation distribution was a critical component in the recently successful antihydrogen trapping effort. This paper will describe the methods used to reconstruct annihilation events in the ALPHA detector. Particular attention will be given to the description of the background rejection criteria. |
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College: |
Faculty of Science and Engineering |
Issue: |
1-3 |
Start Page: |
91 |
End Page: |
99 |