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Speakers: Dr. Dmitry Semikoz (Astroparticle and Cosmology Lab, CNRS, Paris)
Place: Conference hall in the building of the Institute of Physics, Na Slovance 2, Prague 8
Presented in English
Organisers:
Division of Elementary Particle Physics
Abstract:
In this talk I will show how one can explain multiple anomalies in the cosmic ray data by adding the effects of a 2 million year old nearby supernova to static model of galactic cosmic rays. In particular, this supernova can explain the excess of positrons and antiprotons above 20 GeV found by PAMELA and AMS-02, the discrepancy in the slopes of the spectra of cosmic ray protons and heavier nuclei in the TeV-PeV energy range and the plateau in cosmic ray dipole anisotropy in the 2-50 TeV energy range. Same supernova was responsible for Fe60 measured in ocean crust.
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