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Detecting Antihydrogen: The Challenges and the Applications

Makoto C. Fujiwara
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Abstract

ATHENA's first detection of cold antihydrogen atoms relied on their annihilation signatures in a sophisticated particle detector. We will review the features of the ATHENA detector and its applications in trap physics. The detector for a new experiment ALPHA will have considerable challenges due to increased material thickness in the trap apparatus as well as field non-uniformity. Our studies indicate that annihilation vertex imaging should be still possible despite these challenges. An alternative method for trapped antihydrogen, via electron impact ionization, will be also discussed.

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Makoto C. Fujiwara. 2005-07-19. Detecting Antihydrogen: The Challenges and the Applications. https://doi.org/10.1063/1.2121974

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