Measurements and 3D Reconstruction of Antimatter Annihilations with the ASACUSA Micromegas Tracker

Open access
Author
Radics, Balint
Breuker, Horst
Dupre, Pierre
Higashi, Y.
Kaga, Chikato
Leali, Marco
Lodi Rizzini, Evandro
Mascagna, Valerio
Matsudate, Takuya
Murtagh, Daniel J.
Tajima, Minori
Torii, Hiroyuki A.
Van Gorp, S.
Higaki, Hiroyuki
Kanai, T.Y.
Kuroda, Naofumi
Matsuda, Y.
Ulmer, Simone
Venturelli, Luca
Yamazaki, Y.
Date
2017-11-24Type
- Conference Paper
ETH Bibliography
yes
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Abstract
The aim of the ASACUSA-CUSP experiment is to form a beam of antihydrogen atoms for in-flight precision spectroscopic measurements. This is performed by trapping and mixing antiprotons and positrons in a common nested-well potential, which is sitting in a double-cusp magnetic field with minimum-B field configuration. We have built a tracking detector, the ASACUSA Micromegas Tracker (AMT) [1], to monitor and resolve annihilations on-axis from annihilations on the trapping electrode walls of the experiment, which latter is a general signature of antihydrogen formation. Data taken during the summer of 2015 is presented in order to demonstrate the first performance of the AMT detector. In particular, data from on-axis trapping and slow extraction of antiprotons is used to illustrate the vertex reconstruction capability of the detector. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000232421Publication status
publishedBook title
Proceedings of the 12th International Conference on Low Energy Antiproton Physics (LEAP2016)Journal / series
JPS Conference ProceedingsVolume
Pages / Article No.
Publisher
The Physical Society of JapanEvent
Subject
antihydrogen; micromegas; tracking detectorOrganisational unit
03503 - Rubbia, André / Rubbia, André
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ETH Bibliography
yes
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