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Antihydrogen annihilation reconstruction with the ALPHA silicon detector

The ALPHA experiment has succeeded in trapping antihydrogen, a major milestone on the road to spectroscopic comparisons of antihydrogen with hydrogen. An annihilation vertex detector, which determines the time and position of antiproton annihilations, has been central to this achievement. This detec...

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Detalles Bibliográficos
Autores principales: Andresen, G B, Ashkezari, M D, Bertsche, W, Bowe, P D, Butler, E, Cesar, C L, Chapman, S, Charlton, M, Deller, A, Eriksson, S, Fajans, J, Friesen, T, Fujiwara, M C, Gill, D.R, Gutierrez, A, Hangst, J S, Hardy, W N, Hayden, M E, Hayano, R S, Humphries, A J, Hydomako, R, Jonsell, S, Jorgensen, L V, Kurchaninov, L, Madsen, N, Menary, S, Nolan, P, Olchanski, K, Olin, A, Povilus, A, Pusa, P, Sarid, E, Seif el Nasr, S, Silveira, D M, So, C, Storey, J W, Thompson, R I, van der Werf, D P, Yamazaki, Y
Lenguaje:eng
Publicado: 2012
Materias:
Acceso en línea:https://dx.doi.org/10.1016/j.nima.2012.04.082
http://cds.cern.ch/record/1559829
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author Andresen, G B
Ashkezari, M D
Bertsche, W
Bowe, P D
Butler, E
Cesar, C L
Chapman, S
Charlton, M
Deller, A
Eriksson, S
Fajans, J
Friesen, T
Fujiwara, M C
Gill, D.R
Gutierrez, A
Hangst, J S
Hardy, W N
Hayden, M E
Hayano, R S
Humphries, A J
Hydomako, R
Jonsell, S
Jorgensen, L V
Kurchaninov, L
Madsen, N
Menary, S
Nolan, P
Olchanski, K
Olin, A
Povilus, A
Pusa, P
Sarid, E
Seif el Nasr, S
Silveira, D M
So, C
Storey, J W
Thompson, R I
van der Werf, D P
Yamazaki, Y
author_facet Andresen, G B
Ashkezari, M D
Bertsche, W
Bowe, P D
Butler, E
Cesar, C L
Chapman, S
Charlton, M
Deller, A
Eriksson, S
Fajans, J
Friesen, T
Fujiwara, M C
Gill, D.R
Gutierrez, A
Hangst, J S
Hardy, W N
Hayden, M E
Hayano, R S
Humphries, A J
Hydomako, R
Jonsell, S
Jorgensen, L V
Kurchaninov, L
Madsen, N
Menary, S
Nolan, P
Olchanski, K
Olin, A
Povilus, A
Pusa, P
Sarid, E
Seif el Nasr, S
Silveira, D M
So, C
Storey, J W
Thompson, R I
van der Werf, D P
Yamazaki, Y
author_sort Andresen, G B
collection CERN
description The ALPHA experiment has succeeded in trapping antihydrogen, a major milestone on the road to spectroscopic comparisons of antihydrogen with hydrogen. An annihilation vertex detector, which determines the time and position of antiproton annihilations, has been central to this achievement. This detector, an array of double-sided silicon microstrip detector modules arranged in three concentric cylindrical tiers, is sensitive to the passage of charged particles resulting from antiproton annihilation. This article describes the method used to reconstruct the annihilation location and to distinguish the annihilation signal from the cosmic ray background. Recent experimental results using this detector are outlined.
id cern-1559829
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
record_format invenio
spelling cern-15598292019-09-30T06:29:59Zdoi:10.1016/j.nima.2012.04.082http://cds.cern.ch/record/1559829engAndresen, G BAshkezari, M DBertsche, WBowe, P DButler, ECesar, C LChapman, SCharlton, MDeller, AEriksson, SFajans, JFriesen, TFujiwara, M CGill, D.RGutierrez, AHangst, J SHardy, W NHayden, M EHayano, R SHumphries, A JHydomako, RJonsell, SJorgensen, L VKurchaninov, LMadsen, NMenary, SNolan, POlchanski, KOlin, APovilus, APusa, PSarid, ESeif el Nasr, SSilveira, D MSo, CStorey, J WThompson, R Ivan der Werf, D PYamazaki, YAntihydrogen annihilation reconstruction with the ALPHA silicon detectorParticle Physics - ExperimentDetectors and Experimental TechniquesThe ALPHA experiment has succeeded in trapping antihydrogen, a major milestone on the road to spectroscopic comparisons of antihydrogen with hydrogen. An annihilation vertex detector, which determines the time and position of antiproton annihilations, has been central to this achievement. This detector, an array of double-sided silicon microstrip detector modules arranged in three concentric cylindrical tiers, is sensitive to the passage of charged particles resulting from antiproton annihilation. This article describes the method used to reconstruct the annihilation location and to distinguish the annihilation signal from the cosmic ray background. Recent experimental results using this detector are outlined.oai:cds.cern.ch:15598292012
spellingShingle Particle Physics - Experiment
Detectors and Experimental Techniques
Andresen, G B
Ashkezari, M D
Bertsche, W
Bowe, P D
Butler, E
Cesar, C L
Chapman, S
Charlton, M
Deller, A
Eriksson, S
Fajans, J
Friesen, T
Fujiwara, M C
Gill, D.R
Gutierrez, A
Hangst, J S
Hardy, W N
Hayden, M E
Hayano, R S
Humphries, A J
Hydomako, R
Jonsell, S
Jorgensen, L V
Kurchaninov, L
Madsen, N
Menary, S
Nolan, P
Olchanski, K
Olin, A
Povilus, A
Pusa, P
Sarid, E
Seif el Nasr, S
Silveira, D M
So, C
Storey, J W
Thompson, R I
van der Werf, D P
Yamazaki, Y
Antihydrogen annihilation reconstruction with the ALPHA silicon detector
title Antihydrogen annihilation reconstruction with the ALPHA silicon detector
title_full Antihydrogen annihilation reconstruction with the ALPHA silicon detector
title_fullStr Antihydrogen annihilation reconstruction with the ALPHA silicon detector
title_full_unstemmed Antihydrogen annihilation reconstruction with the ALPHA silicon detector
title_short Antihydrogen annihilation reconstruction with the ALPHA silicon detector
title_sort antihydrogen annihilation reconstruction with the alpha silicon detector
topic Particle Physics - Experiment
Detectors and Experimental Techniques
url https://dx.doi.org/10.1016/j.nima.2012.04.082
http://cds.cern.ch/record/1559829
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