Mainz 2017 – wissenschaftliches Programm
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SYAM: Symposium Atomic Anti-Matter Physics
SYAM 1: Atomic Anti-Matter Physics I
SYAM 1.2: Hauptvortrag
Donnerstag, 9. März 2017, 11:30–12:00, P 1
The BASE Experiment: High-precision comparisons of the fundamental properties of protons and antiprotons — •C. Smorra1,2, M. Besirli1, K. Blaum3, M. Bohman3, M. J. Borchert1,4, J. Harrington1,3, T. Higuchi1,5, H. Nagahama1,5, Y. Matsuda5, A. Mooser1, C. Ospelkaus4,6, W. Quint7, S. Sellner1, G. Schneider1,8, N. Schoen8, T. Tanaka1, J. Walz8,9, Y. Yamazaki10, and S. Ulmer1 — 1RIKEN, Ulmer IRU, Wako, Japan — 2CERN, Geneva, Switzerland — 3Max-Planck-Institut für Kernphysik, Heidelberg — 4Institut für Quantenoptik, Universität Hannover — 5Graduate School for Arts and Sciences, University of Tokyo — 6Physikalisch Technische Bundesanstalt, Braunschweig — 7GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt — 8Institut für Physik, Universität Mainz — 9Helmholtz-Institut Mainz — 10RIKEN, Atomic Physics Laboratory, Wako, Japan
One of the puzzles of modern physics is the striking imbalance of matter and antimatter observed in our universe. The Standard Model of particle physics and cosmology struggle to find a satisfying explanation for the lack of antimatter in our universe. This fact inspires to test the most fundamental discrete symmetry of the Standard Model, the CPT symmetry, by comparing the fundamental properties of protons and antiprotons at low energy and with highest precision. I will present the results obtained by the BASE collaboration: a high-precision measurement of the antiproton charge-to-mass ratio with 69 ppt relative uncertainty, and results obtained on the way to a direct high-precision measurement of the antiproton magnetic moment.