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Axion Dark Matter

Priv. Doz. Dr. Georg Raffelt (MPI f. Physik, München)

Datum:  22.01.2015 16:00 Uhr – 17:00 Uhr

Ort: Seminar room 127 (Physics Department TUM, Physik II, ground floor/north)

The physical nature of the cosmic dark matter remains perhaps the most vexing mystery of contemporary cosmology. One well-motivated particle-physics solution is provided by the hypothesis of axions, very weakly interacting and very low-mass particles, that would simultaneously explain why quantum-chromodynamics perfectly
respects the symmetry between matter and anti-matter ("strong CP problem"). The theoretical motivation for axions, their cosmological role, experimental searches, and astrophysical limits will be explained and reviewed.

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