Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/9692
Title: Search for direct top squark pair production in final states with two tau leptons in pp collisions at root s=8 TeV with the ATLAS detector
Authors: Aad, G.
Abbott, B.
Abdallah, J.
Abdinov, O.
Aben, R.
Abolins, M.
Adye, T.
Keywords: Dynamical Supersymmetry Breaking
Of-Mass Energies
E(+)E(-) Collisions
Symmetry-Breaking
Hadron Colliders
Scalar Leptons
Model
Extension
Physics
Quarks
Issue Date: 2016
Publisher: Springer
Abstract: A search for direct pair production of the supersymmetric partner of the top quark, decaying via a scalar tau to a nearly massless gravitino, has been performed using 20 fb(-1) of proton-proton collision data at root s = 8 TeV. The data were collected by the ATLAS experiment at the LHC in 2012. Top squark candidates are searched for in events with either two hadronically decaying tau leptons, one hadronically decaying tau and one light lepton, or two light leptons. No significant excess over the Standard Model expectation is found. Exclusion limits at 95 % confidence level are set as a function of the top squark and scalar tau masses. Depending on the scalar tau mass, ranging from the 87 GeV LEP limit to the top squark mass, lower limits between 490 and 650 GeV are placed on the top squark mass within the model considered.
URI: https://doi.org/10.1140/epjc/s10052-016-3897-z
https://hdl.handle.net/20.500.11851/9692
ISSN: 1434-6044
1434-6052
Appears in Collections:Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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