Measurement of τ polarisation in Z/γ∗→ττ decays in proton–proton collisions at s√=8 TeV with the ATLAS detector
dc.contributor.author | Aaboud, Morad | |
dc.contributor.author | Aad, Georges | |
dc.contributor.author | Abbott, Brad | |
dc.contributor.author | Abdallah, Jalal | |
dc.contributor.author | Abdinov, Ovsat Bahram oglu | |
dc.contributor.author | Abeloos, Baptiste | |
dc.contributor.author | Abidi, Syed Haider | |
dc.contributor.author | AbouZeid, Hass | |
dc.contributor.author | Abramowicz, Halina | |
dc.contributor.author | Abreu, Henso | |
dc.contributor.author | Buanes, Trygve | |
dc.contributor.author | Dale, Ørjan | |
dc.contributor.author | Eigen, Gerald | |
dc.contributor.author | Liebig, Wolfgang | |
dc.contributor.author | Lipniacka, Anna | |
dc.contributor.author | Martin dit Latour, Bertrand | |
dc.contributor.author | Mæland, Steffen | |
dc.contributor.author | Stugu, Bjarne | |
dc.contributor.author | Yang, Zongchang | |
dc.contributor.author | Zalieckas, Justas | |
dc.contributor.author | Bugge, Magnar Kopangen | |
dc.contributor.author | Cameron, David Gordon | |
dc.contributor.author | Catmore, James Richard | |
dc.contributor.author | Feigl, Simon | |
dc.contributor.author | Franconi, Laura | |
dc.contributor.author | Garonne, Vincent | |
dc.contributor.author | Gjelsten, Børge Kile | |
dc.contributor.author | Gramstad, Eirik | |
dc.contributor.author | Morisbak, Vanja | |
dc.contributor.author | Nilsen, Jon Kerr | |
dc.contributor.author | Oppen, Henrik | |
dc.contributor.author | Ould-Saada, Farid | |
dc.contributor.author | Raddum, Silje Hattrem | |
dc.contributor.author | Read, Alexander Lincoln | |
dc.contributor.author | Røhne, Ole Myren | |
dc.contributor.author | Sandaker, Heidi | |
dc.contributor.author | Serfon, Cédric | |
dc.contributor.author | Stapnes, Steinar | |
dc.contributor.author | Vadla, Knut Oddvar Høie | |
dc.contributor.author | Abreu, Rômulo F. | |
dc.contributor.author | Abulaiti, Yiming | |
dc.contributor.author | Acharya, Bobby S. | |
dc.contributor.author | Adachi, Shunsuke | |
dc.contributor.author | Adamczyk, Leszek | |
dc.contributor.author | Adelman, Jareed | |
dc.contributor.author | Adersberger, Michael | |
dc.contributor.author | Adye, Tim | |
dc.contributor.author | Affolder, Anthony Allen | |
dc.contributor.author | Afik, Yoav | |
dc.contributor.author | Agatonovic-Jovin, Tatjana | |
dc.contributor.author | ATLAS, Collaboration | |
dc.date.accessioned | 2019-04-24T13:38:30Z | |
dc.date.available | 2019-04-24T13:38:30Z | |
dc.date.issued | 2018-02 | |
dc.Published | Aaboud M, Aad G, Abbott B, Abdallah J, Abdinov OBo, Abeloos B, Abidi SH, AbouZeid H, Abramowicz H, Abreu H, Buanes T, Dale Ø, Eigen G, Liebig W, Lipniacka A, Martin dit Latour B, Mæland S, Stugu B, Yang Z, Zalieckas J, Bugge MK, Cameron DG, Catmore JR, Feigl S, Franconi L, Garonne V, Gjelsten BK, Gramstad E, Morisbak V, Nilsen JK, Oppen H, Ould-Saada F, Raddum SH, Read AL, Røhne OM, Sandaker H, Serfon C, Stapnes S, Vadla KOH, Abreu RF, Abulaiti Y, Acharya BS, Adachi S, Adamczyk L, Adelman J, Adersberger M, Adye T, Affolder AA, Afik Y, Agatonovic-Jovin T, ATLAS C. Measurement of τ polarisation in Z/γ∗→ττ decays in proton–proton collisions at s√=8 TeV with the ATLAS detector. European Physical Journal C. 2018;78:163 | eng |
dc.identifier.issn | 1434-6044 | en_US |
dc.identifier.issn | 1434-6052 | en_US |
dc.identifier.uri | https://hdl.handle.net/1956/19403 | |
dc.description.abstract | This paper presents a measurement of the polarisation of τ leptons produced in Z/γ ∗ → τ τ 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 ∗ → τ τ 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 < mZ/γ ∗ < 116 GeV is found to be Pτ = −0.14±0.02(stat)±0.04(syst). It is in agreement with the Standard Model prediction of Pτ = −0.1517 ± 0.0019, which is obtained from the ALPGEN event generator interfaced with the PYTHIA 6 parton shower modelling and the TAUOLA τ decay library. | en_US |
dc.language.iso | eng | eng |
dc.publisher | Springer | en_US |
dc.rights | Attribution CC BY | eng |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0 | eng |
dc.title | Measurement of τ polarisation in Z/γ∗→ττ decays in proton–proton collisions at s√=8 TeV with the ATLAS detector | en_US |
dc.type | Peer reviewed | |
dc.type | Journal article | |
dc.date.updated | 2018-08-20T11:32:53Z | |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | Copyright CERN for the benefit of the ATLAS collaboration 2018 | en_US |
dc.identifier.doi | https://doi.org/10.1140/epjc/s10052-018-5619-1 | |
dc.identifier.cristin | 1582983 | |
dc.source.journal | European Physical Journal C | |
dc.subject.nsi | VDP::Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 | |
dc.subject.nsi | VDP::Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 |