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CERN Document Server 2,014 record trovati  1 - 10successivofine  salta al record: La ricerca ha impiegato 0.59 secondi. 
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Measurement of the ttZ cross section in the four lepton channel at 13 TeV with ATLAS / Schulte, Alexandra (Institut fuer Physik, Universitaet Mainz) /ATLAS Collaboration
The production of a Z boson together with a top quark pair provides an important test of the standard model and can be used to measure the coupling between a top quark and a Z boson. So far the coupling has not yet directly been measured [...]
ATL-PHYS-SLIDE-2016-354.- Geneva : CERN, 2016 - 1 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : 4th Conference on Large Hadron Collider Physics 2016 (LHCP 2016), Lund, Sweden, 13 - 18 Jun 2016
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Top Properties in ATLAS and CMS / Schulte, Alexandra (Institut fuer Physik, Universitaet Mainz) /ATLAS Collaboration
The top quark is the heaviest known elementary particle. It decays almost exclusively into a W boson and a b quark. [...]
ATL-PHYS-SLIDE-2017-352.- Geneva : CERN, 2017 - 19 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
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Top Properties in ATLAS and CMS / Schulte, Alexandra (Institut fuer Physik, Universitaet Mainz)
The top quark is the heaviest known elementary particle. [...]
ATL-PHYS-PROC-2017-108. - 2017. - 4 p.
Original Communication (restricted to ATLAS) - Full text
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Measurement of the top quark pair-production in association with a W or Z boson in pp collisions at 13 TeV with full 2016 dataset at CMS experiment / Khvastunov, Illia (Gent U.) /CMS Collaboration
The collected data in 2016 at the LHC at a center-of-mass energy of 13 TeV allows to study the heaviest set of standard model particles that could be observed so far. The precise measurement of the cross-sections of ttW and ttZ processes is of particular interest as they are effected of new physics, if present. [...]
CMS-CR-2018-057.- Geneva : CERN, 2018 - 8 p. Fulltext: PDF;
In : XXXII Rencontres de Physique de La Vallée d'Aoste, La Thuile(ao), Italy, 25 Feb - 3 Mar 2018
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Measurement of the $t\bar{t}Z$ cross section in the four lepton channel at 13 TeV with ATLAS / Schulte, Alexandra
The measurement of a Z boson together with a top quark pair in the four lepton channel is presented [...]
ATL-PHYS-PROC-2016-096. - 2016. - 4 p.
Original Communication (restricted to ATLAS) - Full text - ATLAS note
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Measurement of ttZ and ttW production at ATLAS in 13 TeV data, using trilepton and same charge dimuon final states / Bessidskaia Bylund, Olga (Stockholm University) /ATLAS Collaboration
The production of ttZ serves as an important probe of the coupling of top quarks to Z bosons. Modifications to this coupling by physics beyond the Standard Model would have an effect on the ttZ production rates. [...]
ATL-PHYS-SLIDE-2016-367.- Geneva : CERN, 2016 - 1 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : 4th Conference on Large Hadron Collider Physics 2016 (LHCP 2016), Lund, Sweden, 13 - 18 Jun 2016
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Measurements of the inclusive and differential production cross sections of a top-quark-antiquark pair in association with a $Z$ boson at $\sqrt{s} = 13$ TeV with the ATLAS detector / Mince, Laurynas (University of Glasgow (GB)) /ATLAS Collaboration
The production of a top-quark-antiquark pair in association with a Z boson (ttZ) is a rare process that directly probes the neutral coupling of the top quark to the electroweak gauge bosons. A better understanding of this process also benefits precision measurements of other Standard Model processes and beyond the Standard Model searches where ttZ is an important background. [...]
ATL-PHYS-SLIDE-2021-358.- Geneva : CERN, 2021 - 1 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : European Physics Society conference on High Energy Physics 2021, Online, Online, 26 - 30 Jul 2021
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Measurements of the inclusive production cross-section of a top-quark-antiquark pair in association with a Z boson at $\sqrt{s} = 13$ TeV with the ATLAS detector. / Mince, Laurynas (University of Glasgow (GB)) /ATLAS Collaboration
The production of a top-quark-antiquark pair in association with a Z boson (ttZ) is a rare process that directly probes the neutral coupling of the top quark to the electroweak gauge bosons. A better understanding of this process also benefits precision measurements of other Standard Model processes and beyond the Standard Model searches where ttZ is an important background. [...]
ATL-PHYS-SLIDE-2021-550.- Geneva : CERN, 2021 - 7 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
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Observation of associated production of top quarks with the ATLAS experiment / ATLAS Collaboration /ATLAS Collaboration
The large integrated luminosity accumulated by the ATLAS detector at the highest proton-proton collision energy provided by LHC allows the study of rare SM top quark production processes. The observation of associated production of top quarks has provided the first direct measurement of the top quark EW couplings with neutral gauge bosons and the first access to the four-top-quark interaction vertex. [...]
ATL-PHYS-SLIDE-2022-284.- Geneva : CERN, 2022 - 51 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
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Top quark pair property measurements and ttbar+X, using the ATLAS detector at the LHC / Rosien, Nils-Arne (Georg-August-Universitat Goettingen, II. Physikalisches Institut) /ATLAS Collaboration
Since the last DIS conference in April 2016 the ATLAS Top Properties group has released 5 public results: $\begin{itemize} \item "Measurements of top quark spin observables in tt events using dilepton final states in 8 TeV pp collisions with the ATLAS detector" \item "Measurements of the charge asymmetry in top-quark pair production in the dilepton final state at 8 TeV with the ATLAS detector" \item "Measurements of charge and CP asymmetries in b-hadron decays using top-quark events collected by the ATLAS detector in pp collisions at 8 TeV" \item "Measurement of the W boson polarisation in tt events from pp collisions at 8 TeV in the lepton+jets channel with ATLAS" \item "Measurement of the ttZ and ttW production cross sections in multilepton final states using 3.2 fb -1 of pp collisions at 13 TeV at the LHC" \end{itemize}$ This talk will give a 15+5 minute overview of these 5 analyses on April 4th during the 2017 DIS conference..
ATL-PHYS-SLIDE-2017-146.- Geneva : CERN, 2017 - 15 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : 25th International Workshop on Deep Inelastic Scattering and Related Topics, Birmingham, UK, 03 - 07 Apr 2017
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