Astronomy and Astrophysics – Astrophysics – Cosmology and Extragalactic Astrophysics
Scientific paper
2009-06-09
Astronomy and Astrophysics
Astrophysics
Cosmology and Extragalactic Astrophysics
A white paper submitted in response to the Fundamental Physics Roadmap Advisory Team (FPR-AT) Call for White Papers
Scientific paper
We propose an X-ray mission called Xenia to search for decaying superweakly interacting Dark Matter particles (super-WIMP) with a mass in the keV range. The mission and its observation plan are capable of providing a major break through in our understanding of the nature of Dark Matter (DM). It will confirm, or reject, predictions of a number of particle physics models by increasing the sensitivity of the search for decaying DM by about two orders of magnitude through a wide-field imaging X-ray spectrometer in combination with a dedicated observation program. The proposed mission will provide unique limits on the mixing angle and mass of neutral leptons, right handed partners of neutrinos, which are important Dark Matter candidates. The existence of these particles is strongly motivated by observed neutrino flavor oscillations and the problem of baryon asymmetry of the Universe. In super-WIMP models, the details of the formation of the cosmic web are different from those of LambdaCDM. The proposed mission will, in addition to the search for decaying Dark Matter, provide crucial insight into the nature of DM by studying the structure of the "cosmic web". This will be done by searching for missing baryons in emission, and by using gamma-ray bursts as backlight to observe the warm-hot intergalactic media in absorption.
Abazajian Kev
Boyarsky Alexey
den Herder Jan Willem
Frenk Carlos
Hansen Steve
No associations
LandOfFree
The search for decaying Dark Matter does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The search for decaying Dark Matter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The search for decaying Dark Matter will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-65468