Conveners
Dark Matter II
- Brooks Thomas (University of Hawaii)
Peisi Huang
(ANL/U. of Chicago)
05/05/2014, 16:30
We study the spin-independent neutralino Dark Matter scattering off heavy nuclei in the MSSM. We identify analytically the blind spots in direct detection for intermediate values of $m_A$. In the region where $\mu$ and $M_{1,2}$ have opposite signs, there is not only a reduction of the lightest CP-even Higgs coupling to neutralinos, but also a destructive interference between the neutralino...
Zhen Liu
(U of Pittsburgh)
05/05/2014, 16:45
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...
Dr
David Sanford
(Caltech)
05/05/2014, 17:00
I discuss models of WIMP dark matter in which the relic density is
achieved through mixing of a Standard Model singlet state and a state
charged under SU(2) X U(1). Such models provide a generalization of
the "well-tempered neutralino" scenario in supersymmetric theories,
and naturally lie within the range of the current generation of dark
matter direct detection experiments due to their...
Mickelson Dan
(University of Oklahoma)
05/05/2014, 17:30
Radiatively-driven natural SUSY (RNS) is a model within the context of supergravity grand unified theories that realizes low electroweak fine-tuning while satisfying Higgs mass and LHC SUSY constraints. To realize low EWFT, the RNS model requires 1. a small mu parameter ~100-200 GeV, 2. up-Higgs soft mass driven to small negative values and 3. highly mixed TeV-scale top squarks. In RNS, the...
Dr
Kyu Jung Bae
(University of Oklahoma)
05/05/2014, 17:45
Supersymmetric (SUSY) DFSZ axion model can solve both the gauge hierarchy problem and strong CP problem and explain the weak scale mu term via Kim-Nilles mechanism. It can also provide good candidates of dark matter (DM): axion and neutralino. In addition, the extended axion sector by SUSY can modify the evolution of the early universe and make non-trivial consequences. In this talk, I would...
Christopher Redino
(SUNY at Buffalo)
05/05/2014, 18:00
SUSY models with a modified dark sector require constraints to be reinterpreted, which may allow for scenarios with low tuning. A modified dark sector can also change the phenomenology greatly. The addition of the QCD axion to the MSSM solves the strong CP problem and also modifies the dark sector with new dark matter candidates. This talk describes scenarios where the axion's superpartner,...
