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Search for Supersymmetry: Using \(M_\mathrm {T2}\) as Discovery Variable

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Book cover Search for Supersymmetry in Hadronic Final States

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Abstract

The \(M_\mathrm {T2}\) variable, sometimes called stransverse mass, has been proven to be very sensitive to events emerging from SUSY production processes, while strongly suppressing the background due to SM processes.

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Notes

  1. 1.

    As \(M_{\tilde{\chi }}\) is a parameter, the symbol \(M_{\tilde{\chi }}\) is chosen over \(M(\widetilde{\chi })\) in the equations of this section.

  2. 2.

    This argument holds also for the asymmetric decay (one W boson decaying leptonically, the other one hadronically), as reasoned in [3].

  3. 3.

    For the 7 TeV search, no CHS was applied.

  4. 4.

    In the \(M_\mathrm {T2} b\) analysis, b jets were selected by a simple secondary vertex tagger with an efficiency of about \(40\,\%\) and a light-jet mistagging rate of \(\sim \) \(0.1\,\%\).

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Authors and Affiliations

  1. Institute for Particle Physics, ETH Zurich, Zurich, Switzerland

    Hannsjörg Artur Weber

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  1. Hannsjörg Artur Weber
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Correspondence to Hannsjörg Artur Weber .

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Weber, H.A. (2015). Search for Supersymmetry: Using \(M_\mathrm {T2}\) as Discovery Variable. In: Search for Supersymmetry in Hadronic Final States. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-319-19956-6_6

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