Four billion positrons (e+) are accumulated in a Penning-Ioffe trap apparatus at 1.2 K and <6 ×10-17 Torr. This is the largest number of positrons ever held in a Penning trap. The e+ are cooled by collisions with trapped electrons (e-) in this first demonstration of using e- for efficient loading of e+ into a Penning trap. The combined low temperature and vacuum pressure provide an environment suitable for antihydrogen () production, and long antimatter storage times, sufficient for high-precision tests of antimatter gravity and of CPT.
|Original language||English (US)|
|Journal||Journal of Physics B: Atomic, Molecular and Optical Physics|
|State||Published - Feb 23 2016|
- Penning trap
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics