カスプトラップを用いた反水素研究

Titleカスプトラップを用いた反水素研究
Publication TypeJournal Article
Year of Publication2015
AuthorsNagata, Y, Kuroda, N
Journal陽電子科学
Volume4
Start Page49
Pagination49-59
Date PublishedFeb.
KeywordsAntihydrogen, ASACUSA, Atomic beam, CPT symmetry, cusp trap, non-neutral plasma
Abstract

<p>In this review, we describe a planned experiment of the Atomic Spectroscopy And Collisions Using Slow Antiprotons (ASACUSA) collaboration at CERN to test CPT symmetry via atomic beam spectroscopy of the ground-state hyperfine splitting of antihydrogen using a cusp trap. The cusp trap which consists of a superconducting anti-Helmholtz coil and a stack of ring electrodes, is expected to produce a spin-polarized antihydrogen beam. Recently, the ASACUSA collaboration succeeded in producing antihydrogen atoms in the cusp trap and extracting an antihydrogen beam. This paves the way towards precision in-flight spectroscopy of the antihydrogen atom.</p>

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