@Article{ATLASCollaborationAad_etal2012, author="ATLAS Collaboration (Aad, G. et al and Amoros, G. and Cabrera Urban, S. and Castillo Gimenez, V. and Costa, M. J. and Ferrer, A. and Fiorini, L. and Fuster, J. and Garcia, C. and Garcia Navarro, J. E. and Gonzalez de la Hoz, S. and Hernandez Jimenez, Y. and Higon-Rodriguez, E. and Irles Quiles, A. and Kaci, M. and Lacasta, C. and Lacuesta, V. R. and Marti-Garcia, S. and Mi{\~A}{\textpm}ano, M. and Mitsou, V. A. and Moles-Valls, R. and Moreno Llacer, M. and Oliver Garcia, E. and Perez Garcia-Esta{\~A}{\textpm}, M. T. and Ros, E. and Salt, J. and Solans, C. A. and Soldevila, U. and Sanchez, J. and Torro Pastor, E. and Valladolid Gallego, E. and Valls Ferrer, J. A. and Villaplana Perez, M. and Vos, M. and Wildauer, A.", title="Search for anomaly-mediated supersymmetry breaking with the ATLAS detector based on a disappearing-track signature in pp collisions at root s=7 TeV", journal="European Physical Journal C", year="2012", volume="72", number="4", pages="1993--20pp", abstract="In models of anomaly-mediated supersymmetry breaking (AMSB), the lightest chargino is predicted to have a lifetime long enough to be detected in collider experiments. This letter explores AMSB scenarios in pp collisions at root s = 7 TeV by attempting to identify decaying charginos which result in tracks that appear to have few associated hits in the outer region of the tracking system. The search was based on data corresponding to an integrated luminosity of 1.02 fb(-1) collected with the ATLAS detector in 2011. The p(T) spectrum of candidate tracks is found to be consistent with the expectation from Standard Model background processes and constraints on the lifetime and the production cross section were obtained. In the minimal AMSB framework with m(3/2) < 32 TeV, m(0) < 1.5 TeV, tan beta = 5 and $\mu$> 0, a chargino having mass below 92 GeV and a lifetime between 0.5 ns and 2 ns is excluded at 95 {\%} confidence level.", optnote="WOS:000304013800004", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1021), last updated on Fri, 21 Sep 2012 18:15:49 +0000", issn="1434-6044", doi="10.1140/epjc/s10052-012-1993-2", opturl="http://arxiv.org/abs/arXiv:1202.4847", opturl="https://doi.org/10.1140/epjc/s10052-012-1993-2", archivePrefix="arXiv", eprint="arXiv:1202.4847" }