Cosmic magnetic fields, LHC "nightmare scenario" and Neutrino Minimal Standard Model

by Oleg Ruchayskiy (CERN-TH)

Friday 21 Oct 2011, 14:00 → 15:00 Europe/Zurich

TH Theory Conference Room (CERN)

The Neutrino Minimal Standard Model (nuMSM) is among a very few models that predicts how the nature of Dark Matter and other ”beyond the Standard Model” phenomena may be probed with existing experimental means in the situation when no new physics will be found at the LHC. The corresponding experiments require significant input from astrophysical and cosmological observations. The production of matter-antimatter asymmetry in the nuMSM is accompanied by the generation of magnetic fields. I will demonstrate that due to the previously overlooked purely Standard Model effect, the evolution of these fields leads to the presence of non-zero chiral asymmetry in the plasma down to the temperatures 10-100 MeV. The influence of magnetic fields can be quite significant: the abundances of dark and ordinary matter may be linked, cosmological phase transitions may change their nature, etc. Finally, I will discuss the possible survival of these fields and their observability

Slides Ruchayskiy_CMF_2011-10-21.pdf