AIP conference proceedings

Atomic Physics with Ultra‐Slow/Trapped Antiprotons

Y. Yamazaki

Published Jan 1, 2005• 0 citations

Abstract

Recently, slow and ultra‐slow antiprotons are now available, which will open a new field of research in atomic physics as well as in related fields. In realizing this, the combination of an RFQD (Radio Frequency Quadrupole Decelerator) and a large multi‐ring trap (MRT) installed in a super‐conducting solenoid has been employed. Several million antiprotons have already been accumulated, and a mono‐energetic antiproton beam of 10 eV has been extracted and transported through a specially designed beam line. A couple of basic experiments which get feasible by the developments of ultra slow antiproton beam are discussed, which include ionization and antiprotonic atom formation processes and also to study spectroscopic nature of various meta‐stable antiprotonic atoms under single collision conditions. A so‐called cusp trap configuration is also discussed, which could for the first time synthesize intense spin‐polarized antihydrogen beams. At the same time, it could trap antihydrogen atoms for a macroscopic time.

DOI: 10.1063/1.1896471

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