@article {69, title = {カスプトラップを用いた反水素研究}, journal = {陽電子科学}, volume = {4}, year = {2015}, month = {Feb.}, pages = {49-59}, chapter = {49}, abstract = {

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.

}, keywords = {Antihydrogen, ASACUSA, Atomic beam, CPT symmetry, cusp trap, non-neutral plasma}, author = {Yugo Nagata and Naofumi Kuroda} }