Discovering anomaly-mediated supersymmetry at the LHC

Details Discovering anomaly-mediated supersymmetry at the LHC Discovering anomaly-mediated supersymmetry at the LHC

2002-08-23

arxiv.org/abs/hep-ph/0208214v2

JHEP 0303 (2003) 045

Physics

High Energy Physics

High Energy Physics - Phenomenology

46 pages, 18 figures, added references

Scientific paper

10.1088/1126-6708/2003/03/045

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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