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HET Brown Bag Seminar<br>Stealth Supersymmetry<br><b>Speaker: Matt Reece (Harvard University, Physics)</br></b>

Wednesday, November 16, 2011
12:00 AM
Oskar Klein Conference Room (3481 Randall)

Speaker: Matt Reece (Harvard University, Physics)

The first year of LHC data has dramatically reduced the allowed parameter space for low-energy supersymmetry, given certain assumptions. In this talk I will summarize the current state of these experimental limits, emphasizing which assumptions might be evaded to allow standard SUSY spectra to survive. I will then present an example of a class of models that are not yet constrained, called "Stealth Supersymmetry." These are models in which certain nearly-supersym?metric states present in decay chains lead to collider signatures without missing energy. I will discuss some specific examples of models in this class, and explain how the LHC might search for them.