Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-03-19
Phys.Rev.D79:115019,2009
Physics
High Energy Physics
High Energy Physics - Phenomenology
23 pages, 6 figures
Scientific paper
10.1103/PhysRevD.79.115019
Dark matter candidates comprising several sub-states separated by a small mass gap, and coupled to the Standard Model by (sub-)GeV force carriers, can exhibit non-trivial scattering interactions in direct detection experiments. We analyze the secluded U(1)-mediated WIMP scenario, and calculate the elastic and inelastic cross sections for multi-component WIMP scattering off nuclei. We find that second-order elastic scattering, mediated by virtual excited states, provides strong sensitivity to the parameters of the model for a wide range of mass splittings, while for small splittings the WIMP excited states have lifetimes exceeding the age of the universe, and generically have a fractional relative abundance above 0.1%. This generates even stronger constraints for mass splittings less than 200 keV due to exothermic de-excitation events in detectors.
Batell Brian
Pospelov Maxim
Ritz Adam
No associations
LandOfFree
Direct Detection of Multi-component Secluded WIMPs 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 Direct Detection of Multi-component Secluded WIMPs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Direct Detection of Multi-component Secluded WIMPs will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-648914