Search for anomaly-mediated supersymmetry breaking with the ATLAS detector based on a disappearing-track signature in $pp$ collisions at $\sqrt{s}=7$ TeV

The ATLAS collaboration
Eur.Phys.J.C 72 (2012) 1993, 2012.

Abstract (data abstract)
CERN-LHC. Study of events which have a disappearing track signature, characteristic of the decay of a nearly degenerate lightest chargino, produced in proton-proton collisions at a centre-of-mass energy of 7 TeV. The data sample, collected from March to July 2011 has a total integrated luminosity of 1.02 fb-1. Events are selected at the trigger levels by requiring at least one jet, constructed using the anti-kT algorithm, with PT above 75 GeV and missing PT above 55 GeV. The data is interpreted in the minimal AMSB framework.

  • Table 1

    Data from F 5


    The pT distribution of candidate tracks with the background prediction.

  • Table 2

    Data from F 6


    95% CL upper limits on the production cross section times acceptance as a function of the track pt threshold.

  • Table 3

    Data from F 7


    95% CL upper limits on the production cross section as a function of chargino lifetime for the chargino mass of...

  • Table 4

    Data from F 8


    95% CL upper limits on the chargino mass as a function of lifetime.

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