Towards measuring the ground state hyperfine splitting of antihydrogen - a progress report
- Sauerzopf, Clemens
- Abo, Y.
- Capon, A.
- Diermaier, M.
- Dupré, P.
- Higashi, Y.
- Ishikawa, S.
- Kaga, C.
- Kolbinger, B.
- Leali, M.
- Lehner, S.
- Malbrunot, C.
- Mascagna, V.
- Massiczek, O.
- Murtag, D. J.
- Nagata, Y.
- Radics, B.
- Simon, M. C.
- Suzuki, K.
- Tajima, M.
- Ulmer, S.
- Vamosi, S.
- von Gorp, S.
- Venturelli, L.
- Zmeskal, J.
- Breuker, H.
- Higaki, H.
- Kanai, Y.
- Kuroda, N.
- Lodi Rizzini, E.
- Matsuda, Y.
- Widmann, E.
- Yamazaki, Y.
DOIAbstract
The matter - anti matter asymmetry observed in the universe today still lacks a quantitative explanation. One possibility that could contribute to the observed state could be a violation of the combined Charge-, Partiy- and Timesymmetries (CPT). To test if the CPT symmetry is broken the ASACUSA collaboration (Atomic Spectroscopy And Collisions Using Slow Antiprotons) at the CERN AD (Antiproton Decelerator) tries to produce a low temperature beam of antihydrogen - the most simple atomic system built only of anti particles. The ground state hyperfine splitting of hydrogen is one of the most precisely determined quantities in physics. Therefore it follows naturally to test CPT invariance by comparing the ground state hyperfine splitting of hy...
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