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Discovering anomaly-mediated supersymmetry at the LHC


Type

Article

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Authors

Barr, AJ 
Lester, CG 
Parker, MA 
Allanach, BC 
Richardson, P 

Abstract

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.

Description

Keywords

supersymmetry breaking, supersymmetric standard model, GUT, hadronic colliders, ILIOPOULOS D-TERMS, STANDARD MODEL, SUSY-BREAKING, MASSES, MUON, NATURALNESS, PROGRAM, SEARCH, MOMENT, ENERGY

Journal Title

J HIGH ENERGY PHYS

Conference Name

Journal ISSN

1029-8479
1029-8479

Volume Title

Publisher

Springer Science and Business Media LLC