Discovering anomaly-mediated supersymmetry at the LHC

A.J. Barr; B.C. Allanach; C.G. Lester; M.A. Parker; P. Richardson

Discovering anomaly-mediated supersymmetry at the LHC

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arxiv hep-ph/0208214 v2 pith:Y72Y2U74 submitted 2002-08-23 hep-ph

A.J. Barr , B.C. Allanach , C.G. Lester , M.A. Parker , P. Richardson This is my paper · ORCID

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keywords masssupersymmetryanomaly-mediatedcharginodiscoverysearchamsbatlas

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The discovery potential of the LHC is investigated for the minimal anomaly-mediated supersymmetry breaking (mAMSB) scenario, using the ATLAS fast detector simulator, including track reconstruction and particle identification. Generic supersymmetry search cuts are used to map the 5-sigma (and >=10 event) discovery contours in the m_0 - m_3/2 plane. With 100 inverse fb of integrated luminosity the search will reach up to 2.8 TeV in the squark mass and 2.1 TeV in the gluino mass. We generalise a kinematical variable and demonstrate that it is sensitive to the small chargino-LSP mass splitting characteristic of AMSB models. By identifying tracks from chargino decays we show that the Wino-like nature of the LSP can be determined for a wide range of chargino lifetimes.

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Recast LHC searches yield a ~1.2 TeV lower bound on long-lived charged dark mesons and show that anomaly-driven diboson resonances can reconstruct UV parameters like dark flavor and color numbers from IR measurements.

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