Speaker
Prof.
Aaron Pierce
(University of Michigan)
Description
We present a simplified dark matter model where a Majorana fermion χ coannihilates with a colored scalar top partner t˜. We explore the cosmological history, with particular emphasis on the most relevant low-energy parameters: the mass splitting between the dark matter and the coannihilator, and the Yukawa coupling that connects these fields to the Standard Model top quarks. We also allow a free quartic coupling between a pair of Higgs bosons and t˜ pairs. We pay special attention to the case where the values take on those expected where t˜ corresponds to the superpartner of the right-handed top, and χ is a bino. Direct detection, indirect detection, and colliders are complementary probes of this simple model. We will also discuss implications for stop conannihilations within the MSSM.
| Oral or Poster Presentation | Oral |
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Author
Prof.
Aaron Pierce
(University of Michigan)
Co-authors
Prof.
Alejandro Ibarra
(Munich)
Dr
Nausheen Shah
(University of Michigan)
Dr
Stefan Vogl
(Stockholm)
