Whitepaper on Super-weakly Interacting Massive Particles for Snowmass 2013

TL;DR

This paper discusses super-weakly interacting massive particles, a dark matter candidate produced from WIMP decays, highlighting their unique astrophysical effects and collider signatures distinct from traditional WIMPs.

Contribution

It introduces super-weakly interacting massive particles as a viable dark matter candidate with distinct astrophysical and collider signatures, expanding beyond standard WIMP models.

Findings

Can account for all dark matter if their masses are similar to WIMPs

Distinct astrophysical effects include modifications to Big Bang Nucleosynthesis and CMB

Potential to reduce galactic substructure and central densities

Abstract

Super-weakly interacting massive particles produced in the late decays of weakly interacting massive particles (WIMPs) are generic in large regions of supersymmetric parameter space and other frameworks for physics beyond the standard model. If their masses are similar to that of the decaying WIMP, then they could naturally account for all of the cosmological dark matter abundance. Their astrophysical consequences and collider signatures are distinct and different from WIMP candidates. In particular, they could modify Big Bang Nucleosynthesis, distort the Cosmic Microwave Background, reduce galactic substructure and lower central densities of low-mass galaxies.