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Measurement of $\tau$ polarisation in $Z/\gamma^{*}\rightarrow\tau\tau$ decays in proton-proton collisions at $\sqrt{s}=8$ TeV with the ATLAS detector

The ATLAS collaboration
No Journal Information, 2017

Abstract (data abstract)
CERN-LHC. Measurement of tau lepton polarisation in Z-boson decays in proton-proton collisions at centre-of-mass energy of 8 TeV with 20.2 fb^-1 of data from 2012. The measurement is done in electron-hadron and muon-hadron decay channels of tau lepton pairs in a fiducial region resembling kinematical acceptance of the analysis and is extracted over the full phase-space within Z-boson mass range from 66 to 116 GeV. See: arXiv:1709.03490 [hep-ex]. The fiducial kinematic region is described as follows: - one leptonic tau decay, - one single-prong hadronic tau decay, - lepton pT > 26 GeV, - hadronic (visible) tau pT > 20 GeV, - |eta| of visible tau < 2.47 - for electron channel |eta| < 2.47 and not 1.37 < |eta| < 1.52 - for muon channel |eta| < 2.5

  • Table 1

    Table 6 from p. 22 of preprint

    10.17182/hepdata.79418.v1/t1

    The measured polarisation values (fiducial and extracted to full phase-space) for electron-hadron and muon-hadron channels as well as combined.

  • Table 2

    Table 2 from p. 8 of preprint

    10.17182/hepdata.79418.v1/t2

    Definition of fiducial region of the analysis. The requirements are applied at stable-particle level.

  • Table 3

    Table 7 from p. 23 of preprint

    10.17182/hepdata.79418.v1/t3

    Impact of individual systematic uncertainties on full and fiducial polarisation.

  • Table 4

    Table 1 from auxiliary material

    10.17182/hepdata.79418.v1/t4

    Impact of individual systematic uncertainties on full and fiducial polarisation in e-had channel.

  • Table 5

    Table 2 from auxiliary material

    10.17182/hepdata.79418.v1/t5

    Impact of individual systematic uncertainties on full and fiducial polarisation in mu-had channel.

  • Table 6

    Data from Figure 4a

    10.17182/hepdata.79418.v1/t6

    Selection efficiency for signal events in the e-had channel. The last bin is for overflow.

  • Table 7

    Data from Figure 4b

    10.17182/hepdata.79418.v1/t7

    Selection efficiency for signal events in the mu-had channel. The last bin is for overflow.

  • Table 8

    Data from Figure 7a from auxiliary material

    10.17182/hepdata.79418.v1/t8

    Selection efficiency for signal events in the e-had channel for events in the fiducial region only. The last bin is...

  • Table 9

    Data from Figure 7b from auxiliary material

    10.17182/hepdata.79418.v1/t9

    Selection efficiency for signal events in the mu-had channel for events in the fiducial region only. The last bin is...

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