Matter-Antimatter Asymmetry - Aspects at Low Energy

Abstract

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.

6 pages, 1 figure; accepted for publication in Annalen der Physik (2015)

References in corpus (11)

• Improved limit on the permanent electric dipole moment of 199Hg
• New limit on Lorentz and CPT violating neutron spin interactions using a free precession 3He-129Xe co-magnetometer
• Direct high-precision measurement of the magnetic moment of the proton
• Falsifying High-Scale Leptogenesis at the LHC
• Traveling-wave deceleration of SrF molecules
• Measurement of the hyperfine structure of antihydrogen in a beam
• Preparation of an ultra-cold sample of ammonia molecules for precision measurements
• Limits on Lorentz violation from charged-pion decay
• First Measurement of the Atomic Electric Dipole Moment of ${}^{225}$Ra
• Search for electric dipole moments at storage rings
• T Violation and CPT Tests in Neutral-Meson Systems

Cited by in corpus (1)

• Precision Muonium Spectroscopy