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Matter-antimatter asymmetry - aspects at low energy

Willmann, Lorenz ; Jungmann, Klaus

Annalen der Physik, 2016-01, Vol.528 (1-2), p.108-114 [Periódico revisado por pares]

Weinheim: Blackwell Publishing Ltd

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  • Título:
    Matter-antimatter asymmetry - aspects at low energy
  • Autor: Willmann, Lorenz ; Jungmann, Klaus
  • Assuntos: Antimatter ; Antiparticles ; Asymmetry ; Dominance ; Fundamental symmetries ; Low energy ; Matter & antimatter ; matter-antimatter asymmetry ; precision experiments ; Symmetry ; Universe
  • É parte de: Annalen der Physik, 2016-01, Vol.528 (1-2), p.108-114
  • Notas: ArticleID:ANDP201500008
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    content type line 23
  • Descrição: 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. The dominance of matter over antimatter in our universe today is an obvious and puzzling fact. It cannot be sufficiently explained in present physical frameworks built on symmetric conditions at the big bang. Known sources of CP violation are insufficient to explain the matter‐antimatter asymmetry. CPT violation could alternatively provide an explanation and is therefore being searched for as well as are differences in the properties of particles and their antiparticles. New precision experiments at low energies provide for a promising way towards resolving this puzzle.
  • Editor: Weinheim: Blackwell Publishing Ltd
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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