Discovering anomaly-mediated supersymmetry at the LHC | Zendy

A. J. Barr | Zendy; C. G. Lester | Zendy; Martin Parker | Zendy; B. C. Allanach | Zendy; Peter Richardson | Zendy

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Discovering anomaly-mediated supersymmetry at the LHC

Author(s) -

A. J. Barr,

C. G. Lester,

Martin Parker,

B. C. Allanach,

Peter Richardson

Publication year - 2003

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2003/03/045

Subject(s) - gluino , chargino , particle physics , supersymmetry , large hadron collider , physics , supersymmetry breaking , anomaly (physics) , superpartner , event (particle physics) , luminosity , nuclear physics , minimal supersymmetric standard model , condensed matter physics , quantum mechanics , galaxy

The discovery potential of the LHC is investigated for the minimalanomaly-mediated supersymmetry breaking (mAMSB) scenario, using the ATLAS fastdetector 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 integratedluminosity the search will reach up to 2.8 TeV in the squark mass and 2.1 TeVin the gluino mass. We generalise a kinematical variable and demonstrate thatit is sensitive to the small chargino-LSP mass splitting characteristic of AMSBmodels. By identifying tracks from chargino decays we show that the Wino-likenature of the LSP can be determined for a wide range of chargino lifetimes.Comment: 46 pages, 18 figures, added reference

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