Symmetry in Atomic, Nuclear and Particle Physics

Dear Colleagues,

This special issue covers symmetries in atomic, nuclear and particle physics with focus on precision studies mainly at low energies.

Discrete symmetries (charge conjugation C, parity P, time reversal T) and combined symmetries like CP and CPT play a fundamental role in our understanding of physics. High precision studies are indispensable because of obviously tiny violations in symmetries in atomic, nuclear and particle physics. The violation of symmetries can open our view of fundamental basis of modern physics and can provide input for extensions or even new approaches toward the understanding of open questions. As an example the experimental finding of CP violation in the kaon and B-meson sector is discussed as symmetry breaking leading to the evident matter-antimatter asymmetry (i.e. missing primordial antimatter in the universe), which is one of the most important questions nowadays. Other symmetry breaking tests concern the T-symmetry, which can be investigated by searching for static electric dipole moments (edm) like the edm of the neutron, which is one of the hot and challenging topics in experimental research now. Presently the matter-antimatter symmetry problem is experimentally investigated in experiments with artificially produced antimatter at the Antiproton Accelerator (AD) of CERN. This special issue will give an overlook of theoretical and experimental research and results on symmetry studies in atomic, nuclear and particle physics.

Dr. Johann Marton
Prof. Dr. Klaus Jungmann
Prof. Dr. Eberhard Widmann
Guest Editors

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