Matter-antimatter asymmetry - aspects at low energy

被引:6
作者
Willmann, Lorenz [1 ]
Jungmann, Klaus [1 ]
机构
[1] Univ Groningen, Van Swinderen Inst, Zernikelaan 25, NL-9747 AA Groningen, Netherlands
关键词
Fundamental symmetries; matter-antimatter asymmetry; precision experiments; ELECTRIC-DIPOLE MOMENTS; ANTIPROTONIC HELIUM; LASER SPECTROSCOPY; ANTIHYDROGEN; INVARIANCE; SEARCH;
D O I
10.1002/andp.201500008
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The apparent dominance of matter over antimatter in our universe is an obvious and puzzling fact which cannot be adequately explained in present physical frameworks that assume matter-antimatter symmetry at the big bang. However, our present knowledge of starting conditions and of known sources of CP violation are both insufficient to explain the observed asymmetry. Therefore ongoing research on matter-antimatter differences is strongly motivated as well as attempts to identify viable new mechanisms that could create the present asymmetry. Here we concentrate on possible precision experiments at low energies towards a resolution of this puzzle.
引用
收藏
页码:108 / 114
页数:7
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