M. Medinnis

article

Erratum to: Measurement of the W boson polarisation in $$t\bar{t}$$ tt¯ events from pp collisions at $$\sqrt{s} = 8~\hbox {TeV}$$ s=8TeV in the lepton + jets channel with ATLAS

M. Aaboud, G. Aad, B. Abbott, J. Abdallah, more

The European Physical Journal C > 2019 > 79 > 1 > 1-14

This change does not have any impact on the measured helicity fractions, but it changes the obtained limits on the anomalous couplings.

article

Measurement of the cross-section for producing a W boson in association with a single top quark in pp collisions at s=13 $$ \sqrt{s}=13 $$ TeV with ATLAS

The ATLAS collaboration, M. Aaboud, G. Aad, B. Abbott, more

Journal of High Energy Physics > 2018 > 2018 > 1 > 1-42

Abstract The inclusive cross-section for the associated production of a W boson and top quark is measured using data from proton-proton collisions at s=13 $$ \sqrt{s}=13 $$ TeV. The dataset corresponds to an integrated luminosity of 3.2 fb⁻¹, and was collected in 2015 by the ATLAS detector at the Large Hadron Collider at CERN. Events are selected requiring two opposite sign isolated leptons and...

article

Measurement of the W+W− production cross section in pp collisions at a centre-of-mass energy of s=13 TeV with the ATLAS experiment

M. Aaboud, G. Aad, B. Abbott, J. Abdallah, more

Physics Letters B > 2017 > 773 > C > 354-374

The production of opposite-charge W-boson pairs in proton–proton collisions at s=13 TeV is measured using data corresponding to 3.16 fb⁻¹ of integrated luminosity collected by the ATLAS detector at the CERN Large Hadron Collider in 2015. Candidate W-boson pairs are selected by identifying their leptonic decays into an electron, a muon and neutrinos. Events with reconstructed jets are not included...

article

Top-quark mass measurement in the all-hadronic t t ¯ $$ t\overline{t} $$ decay channel at s = 8 $$ \sqrt{s}=8 $$ TeV with the ATLAS detector

The ATLAS collaboration, M. Aaboud, G. Aad, B. Abbott, more

Journal of High Energy Physics > 2017 > 2017 > 9 > 1-41

Abstract The top-quark mass is measured in the all-hadronic top-antitop quark decay channel using proton-proton collisions at a centre-of-mass energy of s = 8 $$ \sqrt{s}=8 $$ TeV with the ATLAS detector at the CERN Large Hadron Collider. The data set used in the analysis corresponds to an integrated luminosity of 20.2 fb⁻¹. The large multi-jet background is modelled using a data-driven...

article

Erratum to: Measurement of the charge asymmetry in top-quark pair production in the lepton-plus-jets final state in pp collision data at $$\sqrt{s}=8$$ s = 8 TeV with the ATLAS detector

Atlas Collaboration, G. Aad, B. Abbott, J. Abdallah, more

The European Physical Journal C > 2017 > 77 > 8 > 1-15

The online version of the original article can be found under doi: 10.1140/epjc/s10052-016-3910-6 .

article

Fiducial, total and differential cross-section measurements of t-channel single top-quark production in pp collisions at 8 TeV using data collected by the ATLAS detector

M. Aaboud, G. Aad, B. Abbott, J. Abdallah, more

The European Physical Journal C > 2017 > 77 > 8 > 1-46

Detailed measurements of t-channel single top-quark production are presented. They use 20.2 fb $$^{-1}$$ - 1 of data collected by the ATLAS experiment in proton–proton collisions at a centre-of-mass energy of 8 TeV at the LHC. Total, fiducial and differential cross-sections are measured for both top-quark and top-antiquark production. The fiducial cross-section is measured with a precision...

article

Topological cell clustering in the ATLAS calorimeters and its performance in LHC Run 1

G. Aad, B. Abbott, J. Abdallah, O. Abdinov, more

The European Physical Journal C > 2017 > 77 > 7 > 1-73

The reconstruction of the signal from hadrons and jets emerging from the proton–proton collisions at the Large Hadron Collider (LHC) and entering the ATLAS calorimeters is based on a three-dimensional topological clustering of individual calorimeter cell signals. The cluster formation follows cell signal-significance patterns generated by electromagnetic and hadronic showers. In this, the clustering...

article

Precision measurement and interpretation of inclusive $$W^+$$ W + , $$W^-$$ W - and $$Z/\gamma ^*$$ Z / γ ∗ production cross sections with the ATLAS detector

M. Aaboud, G. Aad, B. Abbott, J. Abdallah, more

The European Physical Journal C > 2017 > 77 > 6 > 1-62

High-precision measurements by the ATLAS Collaboration are presented of inclusive $$W^+ \rightarrow \ell ^+\nu $$ W + → ℓ + ν , $$W^- \rightarrow \ell ^-\bar{\nu }$$ W - → ℓ - ν ¯ and $$Z/\gamma ^* \rightarrow \ell \ell $$ Z / γ ∗ → ℓ ℓ ( $$\ell =e,\mu $$ ℓ = e , μ ) Drell–Yan production cross sections at the LHC. The data were collected in...

article

Measurements of the production cross section of a $$Z$$ Z boson in association with jets in pp collisions at $$\sqrt{s} = 13$$ s = 13 TeV with the ATLAS detector

M. Aaboud, G. Aad, B. Abbott, J. Abdallah, more

The European Physical Journal C > 2017 > 77 > 6 > 1-31

Measurements of the production cross section of a $$Z$$ Z boson in association with jets in proton–proton collisions at $$\sqrt{s} = 13$$ s = 13 TeV are presented, using data corresponding to an integrated luminosity of 3.16 fb $$^{-1}$$ - 1 collected by the ATLAS experiment at the CERN Large Hadron Collider in 2015. Inclusive and differential cross sections are...

article

Reconstruction of primary vertices at the ATLAS experiment in Run 1 proton–proton collisions at the LHC

M. Aaboud, G. Aad, B. Abbott, J. Abdallah, more

The European Physical Journal C > 2017 > 77 > 5 > 1-35

This paper presents the method and performance of primary vertex reconstruction in proton–proton collision data recorded by the ATLAS experiment during Run 1 of the LHC. The studies presented focus on data taken during 2012 at a centre-of-mass energy of $$\sqrt{s} = 8$$ s = 8 TeV. The performance has been measured as a function of the number of interactions per bunch crossing over a wide...

article

Performance of the ATLAS trigger system in 2015

Atlas Collaboration, M. Aaboud, G. Aad, B. Abbott, more

The European Physical Journal C > 2017 > 77 > 5 > 1-53

During 2015 the ATLAS experiment recorded $$3.8\,{\mathrm{fb}}^{-1}$$ 3.8 fb - 1 of proton–proton collision data at a centre-of-mass energy of $$13\,{\mathrm{TeV}}$$ 13 TeV . The ATLAS trigger system is a crucial component of the experiment, responsible for selecting events of interest at a recording rate of approximately 1 kHz from up to 40 MHz of collisions. This paper...

article

Measurements of top-quark pair differential cross-sections in the $$e\mu $$ e μ channel in pp collisions at $$\sqrt{s} = 13$$ s = 13 TeV using the ATLAS detector

M. Aaboud, G. Aad, B. Abbott, J. Abdallah, more

The European Physical Journal C > 2017 > 77 > 5 > 1-30

This article presents measurements of $$t\bar{t}$$ t t ¯ differential cross-sections in a fiducial phase-space region, using an integrated luminosity of 3.2 fb $$^{-1}$$ - 1 of proton–proton data at a centre-of-mass energy of $$\sqrt{s} = 13$$ s = 13 TeV recorded by the ATLAS experiment at the LHC in 2015. Differential cross-sections are measured as a function...

article

High-ET isolated-photon plus jets production in pp collisions at s=8 TeV with the ATLAS detector

M. Aaboud, G. Aad, B. Abbott, J. Abdallah, more

Nuclear Physics B > 2017 > 918 > C > 257-316

The dynamics of isolated-photon plus one-, two- and three-jet production in pp collisions at a centre-of-mass energy of 8 TeV are studied with the ATLAS detector at the LHC using a data set with an integrated luminosity of 20.2 fb−1. Measurements of isolated-photon plus jets cross sections are presented as functions of the photon and jet transverse momenta. The cross sections as functions of the azimuthal...

article

Measurement of the W boson polarisation in $$t\bar{t}$$ tt¯ events from pp collisions at $$\sqrt{s}$$ s = 8 TeV in the lepton + jets channel with ATLAS

M. Aaboud, G. Aad, B. Abbott, J. Abdallah, more

The European Physical Journal C > 2017 > 77 > 4 > 1-28

This paper presents a measurement of the polarisation of W bosons from $$t\bar{t}$$ tt¯ decays, reconstructed in events with one high-$$p_{\text{ T }}$$ pT lepton and at least four jets. Data from pp collisions at the LHC were collected at $$\sqrt{s}$$ s = 8 TeV and correspond to an integrated luminosity of 20.2 fb$$^{-1}$$ -1 . The angle $$\theta ^{*}$$ θ∗ between the b-quark from the top quark...

article

Probing the W tb vertex structure in t-channel single-top-quark production and decay in pp collisions at s = 8 $$ \sqrt{s}=8 $$ TeV with the ATLAS detector

The ATLAS collaboration, M. Aaboud, G. Aad, B. Abbott, more

Journal of High Energy Physics > 2017 > 2017 > 4 > 1-50

Abstract To probe the W tb vertex structure, top-quark and W -boson polarisation observables are measured from t-channel single-top-quark events produced in proton-proton collisions at a centre-of-mass energy of 8 TeV. The dataset corresponds to an integrated luminosity of 20.2 fb⁻¹, recorded with the ATLAS detector at the LHC. Selected events contain one isolated electron or muon, large missing...

article

Measurement of the inclusive cross-sections of single top-quark and top-antiquark t-channel production in pp collisions at s = 13 $$ \sqrt{s}=13 $$ TeV with the ATLAS detector

The ATLAS collaboration, M. Aaboud, G. Aad, B. Abbott, more

Journal of High Energy Physics > 2017 > 2017 > 4 > 1-41

Abstract A measurement of the t-channel single-top-quark and single-top-antiquark production cross-sections in the lepton+jets channel is presented, using 3.2 fb⁻¹ of proton-proton collision data at a centre-of-mass energy of 13 TeV, recorded with the ATLAS detector at the LHC in 2015. Events are selected by requiring one charged lepton (electron or muon), missing transverse momentum, and two jets...

article

Performance of algorithms that reconstruct missing transverse momentum in $$\sqrt{s}$$ s = 8 TeV proton–proton collisions in the ATLAS detector

G. Aad, B. Abbott, J. Abdallah, O. Abdinov, more

The European Physical Journal C > 2017 > 77 > 4 > 1-46

The reconstruction and calibration algorithms used to calculate missing transverse momentum ( $$E_{\text {T}}^{\text {miss}}$$ E T miss ) with the ATLAS detector exploit energy deposits in the calorimeter and tracks reconstructed in the inner detector as well as the muon spectrometer. Various strategies are used to suppress effects arising from additional proton–proton interactions, called...

article

Measurement of jet activity produced in top-quark events with an electron, a muon and two b-tagged jets in the final state in pp collisions at $$\sqrt{s}=13$$ s = 13 TeV with the ATLAS detector

M. Aaboud, G. Aad, B. Abbott, J. Abdallah, more

The European Physical Journal C > 2017 > 77 > 4 > 1-38

Measurements of jet activity in top-quark pair events produced in proton–proton collisions are presented, using 3.2 fb $$^{-1}$$ - 1 of pp collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS experiment at the Large Hadron Collider. Events are chosen by requiring an opposite-charge $$e\mu $$ e μ pair and two b-tagged jets in the final state. The normalised...

article

Electron efficiency measurements with the ATLAS detector using 2012 LHC proton–proton collision data

M. Aaboud, G. Aad, B. Abbott, J. Abdallah, more

The European Physical Journal C > 2017 > 77 > 3 > 1-45

This paper describes the algorithms for the reconstruction and identification of electrons in the central region of the ATLAS detector at the Large Hadron Collider (LHC). These algorithms were used for all ATLAS results with electrons in the final state that are based on the 2012 pp collision data produced by the LHC at $$\sqrt{\mathrm {s}}$$ s = 8 $$\text {TeV}$$ TeV . The efficiency...

article

Measurements of top quark spin observables in t t ¯ $$ t\overline{t} $$ events using dilepton final states in s = 8 $$ \sqrt{s}=8 $$ TeV pp collisions with the ATLAS detector

The ATLAS collaboration, M. Aaboud, G. Aad, B. Abbott, more

Journal of High Energy Physics > 2017 > 2017 > 3 > 1-50

Abstract Measurements of top quark spin observables in t t ¯ $$ t\overline{t} $$ events are presented based on 20.2 fb⁻¹ of s = 8 $$ \sqrt{s}=8 $$ TeV proton-proton collisions recorded with the ATLAS detector at the LHC. The analysis is performed in the dilepton final state, characterised by the presence of two isolated leptons (electrons or muons). There are 15 observables,...

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Search results for: M. Medinnis

Erratum to: Measurement of the W boson polarisation in $$t\bar{t}$$ tt¯ events from pp collisions at $$\sqrt{s} = 8~\hbox {TeV}$$ s=8TeV in the lepton + jets channel with ATLAS

Measurement of the cross-section for producing a W boson in association with a single top quark in pp collisions at s=13 $$ \sqrt{s}=13 $$ TeV with ATLAS

Measurement of the W+W− production cross section in pp collisions at a centre-of-mass energy of s=13 TeV with the ATLAS experiment

Top-quark mass measurement in the all-hadronic t t ¯ $$ t\overline{t} $$ decay channel at s = 8 $$ \sqrt{s}=8 $$ TeV with the ATLAS detector

Erratum to: Measurement of the charge asymmetry in top-quark pair production in the lepton-plus-jets final state in pp collision data at $$\sqrt{s}=8$$ s = 8 TeV with the ATLAS detector

Fiducial, total and differential cross-section measurements of t-channel single top-quark production in pp collisions at 8 TeV using data collected by the ATLAS detector

Topological cell clustering in the ATLAS calorimeters and its performance in LHC Run 1

Precision measurement and interpretation of inclusive $$W^+$$ W + , $$W^-$$ W - and $$Z/\gamma ^*$$ Z / γ ∗ production cross sections with the ATLAS detector

Measurements of the production cross section of a $$Z$$ Z boson in association with jets in pp collisions at $$\sqrt{s} = 13$$ s = 13 TeV with the ATLAS detector

Reconstruction of primary vertices at the ATLAS experiment in Run 1 proton–proton collisions at the LHC

Performance of the ATLAS trigger system in 2015

Measurements of top-quark pair differential cross-sections in the $$e\mu $$ e μ channel in pp collisions at $$\sqrt{s} = 13$$ s = 13 TeV using the ATLAS detector

High-ET isolated-photon plus jets production in pp collisions at s=8 TeV with the ATLAS detector

Measurement of the W boson polarisation in $$t\bar{t}$$ tt¯ events from pp collisions at $$\sqrt{s}$$ s = 8 TeV in the lepton + jets channel with ATLAS

Probing the W tb vertex structure in t-channel single-top-quark production and decay in pp collisions at s = 8 $$ \sqrt{s}=8 $$ TeV with the ATLAS detector

Measurement of the inclusive cross-sections of single top-quark and top-antiquark t-channel production in pp collisions at s = 13 $$ \sqrt{s}=13 $$ TeV with the ATLAS detector

Performance of algorithms that reconstruct missing transverse momentum in $$\sqrt{s}$$ s = 8 TeV proton–proton collisions in the ATLAS detector

Measurement of jet activity produced in top-quark events with an electron, a muon and two b-tagged jets in the final state in pp collisions at $$\sqrt{s}=13$$ s = 13 TeV with the ATLAS detector

Electron efficiency measurements with the ATLAS detector using 2012 LHC proton–proton collision data

Measurements of top quark spin observables in t t ¯ $$ t\overline{t} $$ events using dilepton final states in s = 8 $$ \sqrt{s}=8 $$ TeV pp collisions with the ATLAS detector

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