Same sign top-pairs in a non-universal Z' model at the LHC

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Date/Time:Wednesday, 10 Nov 2010 from 4:10 am to 5:10 am
Location:A401, Zaffarano Hall
Phone:515-294-5062
Channel:High Energy Physics
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Dr. Sudhir Gupta, Iowa State University

In this talk I will discuss same sign dilepton signatures in a non-universal flavor changing Z' model with large Ztu coupling at the Large Hadron Collider. These arise due to tt (or t_bar t_bar) production processes where to (anti)top decays semileptonically. We will also discuss top reconstruction and spin measurement using the variable MT2 and MT2-Assisted On-Shell (MAOS) Momentum techniques and will provide a comparison with the on-shell mass relation method. LHC sensitivities to the flavor violating Z' coupling will also be discussed in the context of the aforementioned signature.