5–7 May 2014
University of Pittsburgh
US/Eastern timezone

The Case of Light Neutralino Dark Matter

5 May 2014, 16:45
15m
Benedum Hall G31 (University of Pittsburgh)

Benedum Hall G31

University of Pittsburgh

Speaker

Zhen Liu (U of Pittsburgh)

Description

We study the light (<40 GeV) neutralino Dark Matter (DM) in the framework of Next-to-Minimal-Supersymmetric-Standard-Model (NMSSM). We focus on three types of light DM solutions that satisfying current collider constrains from the LEP, Tevatron, LHC, direct detections and relic density requirements. Type-i may take place in any theory with a light (pseudo-)scalar, while Type-ii and iii can occur in the framework of Miminal-Supersymmetric-Standard-Model (MSSM) as well. These possible solutions all have very distinctive features from the perspective of DM astrophysics and collider phenomenology. We present a comprehensive study on these solutions and focus on the observational implications of these solutions at colliders, including new phenomena in Higgs physics, missing energy searches and light sfermion searches. The signal becomes hard to observe at the LHC when the LSP mass is nearly degenerate with the parent, dubbed as the \compressed spectrum". We discuss possible probes at the ILC for such scenarios.

Primary authors

Shufang Su (University of Arizona) Tao Han (University of Pittsburgh) Zhen Liu (U of Pittsburgh)

Presentation materials