Detection of antihydrogen annihilations with a Si-micro-strip and pure CsI detector
Abstract
In 2002, the ATHENA collaboration reported the creation and detection of cold (~15 K) antihydrogen atoms [1]. The observation was based on the complete reconstruction of antihydrogen annihilations, simultaneous and spatially correlated annihilations of an antiproton and a positron. Annihilation byproducts are measured with a cylindrically symmetric detector system consisting of two layers of double sided Si-micro-strip modules that are surrounded by 16 rows of 12 pure CsI crystals (13 x 17.5 x 17 mm^3). This paper gives a brief overview of the experiment, the detector system, and event reconstruction. Reference 1. M. Amoretti et al., Nature 419, 456 (2002).
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Cite
@article{arxiv.physics/0401034,
title = {Detection of antihydrogen annihilations with a Si-micro-strip and pure CsI detector},
author = {I. Johnson},
journal= {arXiv preprint arXiv:physics/0401034},
year = {2019}
}
Comments
7 pages, 5 figures; Proceedings for the 8th ICATPP Conference on Astroparticle, Particle, Space Physics, Detectors and Medical Physics Applications (Como, Italy October 2003) to be published by World Scientific (style file included)