Speaker
Ms
Cristina Benso
(Max Planck Institute for Nuclear Physics in Heidelberg)
Description
What if the dark matter content of the universe was made up of sterile neutrinos with a mass of the order of keV?
Currently, constraints from the measured relic abundance of dark matter and from observations in the X-ray band threaten the possibility of finding in terrestrial experiments a signal of such sterile neutrinos produced through oscillation and collisions in the early universe.
We look at two scenarios in which the simple hypothesis of
- a low reheating temperature
- a new contribution to the sterile neutrino decay process
naturally relax these constraints and give new vigor to the hope of getting in the near future a proof of the existence of these elusive Dark Matter candidates in experiments such as KATRIN and ECHo.
Authors
Ms
Cristina Benso
(Max Planck Institute for Nuclear Physics in Heidelberg)
Prof.
Manfred Lindner
(Max-Planck-Institut fuer Kernphysik, Heidelberg, Germany)
Dr
Werner Rodejohann
(MPIK, Heidelberg)
Dr
Vedran Brdar
(Fermilab & Northwestern U.)
