Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/3657
 Title: Measurement of ? polarisation in Z/ ?*› ?? decays in proton–proton collisions at ?s=8 TeV with the ATLAS detector Authors: The ATLAS CollaborationSultansoy, Saleh Keywords: Collisionsjetsproton–proton collisions Issue Date: Feb-2018 Publisher: Springer New York LLC Source: ATLAS collaboration. (2018). Measurement of $$\tau$$ polarisation in $$Z/\gamma^{*}\rightarrow\tau\tau$$ Z/??? decays in proton–proton collisions at $$\sqrt {s}= 8$$ s= 8 TeV with the ATLAS detector. The European Physical Journal C, 78(2), 163. Abstract: This paper presents a measurement of the polarisation of τ leptons produced in Z/ γ∗→ ττ decays which is performed with a dataset of proton—proton collisions at s=8 TeV, corresponding to an integrated luminosity of 20.2 fb- 1 recorded with the ATLAS detector at the LHC in 2012. The Z/ γ∗→ ττ decays are reconstructed from a hadronically decaying τ lepton with a single charged particle in the final state, accompanied by a τ lepton that decays leptonically. The τ polarisation is inferred from the relative fraction of energy carried by charged and neutral hadrons in the hadronic τ decays. The polarisation is measured in a fiducial region that corresponds to the kinematic region accessible to this analysis. The τ polarisation extracted over the full phase space within the Z/ γ∗ mass range of 66

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