Browsing by Author "Zevi Della Porta, G"
Now showing items 1-20 of 37
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Identification and Energy Calibration of Hadronically Decaying Tau Leptons With the ATLAS Experiment in pp Collisions at √s=8 TeV
Franklin, Melissa; Huth, John; Ippolito, Valerio; Lopez Mateos, David; Mercurio, Kevin; Morii, Masahiro; Spearman, William; Sun, Siyuan; Tolley, Emma; Yen, Andy; Zevi Della Porta, G (Springer Nature, 2015)This paper describes the trigger and offline reconstruction, identification and energy calibration algorithms for hadronic decays of tau leptons employed for the data collected from pp collisions in 2012 with the ATLAS ... -
Improved Luminosity Determination in pp Collisions at √s = 7 TeV Using the ATLAS Detector at the LHC
Huth, John; Jeanty, L; Kagan, M; Lopez Mateos, David; Mercurio, Kevin; Morii, Masahiro; Skottowe, Hugh Philip; Zevi Della Porta, G (Springer Nature, 2013)The luminosity calibration for the ATLAS detector at the LHC during pp collisions at √s=7 TeV in 2010 and 2011 is presented. Evaluation of the luminosity scale is performed using several luminosity-sensitive detectors, and ... -
Jet energy measurement and its systematic uncertainty in proton–proton collisions at √s=7TeV with the ATLAS detector
Franklin, Melissa; Huth, John; Jeanty, L; Lopez Mateos, D; Mercurio, Kevin; Morii, Masahiro; Spearman, William; Yen, Andy; Zevi Della Porta, G (Springer Nature, 2015)The jet energy scale (JES) and its systematic uncertainty are determined for jets measured with the ATLAS detector using proton–proton collision data with a centre-of-mass energy of s√=7 TeV corresponding to an integrated ... -
Jet Energy Resolution in Proton-Proton Collisions at √s= 7 TeV Recorded in 2010 With the ATLAS Detector
Huth, John; Jeanty, L; Kagan, M; Lopez Mateos, David; Mercurio, Kevin; Morii, Masahiro; Zevi Della Porta, G (Springer Nature, 2013)The measurement of the jet energy resolution is presented using data recorded with the ATLAS detector in proton-proton collisions at √s=7 TeV . The sample corresponds to an integrated luminosity of 35 pb−1. Jets are ... -
Light-Quark and Gluon Jet Discrimination in pp Collisions at √S = 7 TeV With the ATLAS Detector
Franklin, Melissa; Huth, John; Ippolito, Valerio; Lopez Mateos, David; Mercurio, Kevin; Morii, Masahiro; Spearman, William; Yen, Andy; Zevi Della Porta, G (Springer Nature, 2014)A likelihood-based discriminant for the identification of quark- and gluon-initiated jets is built and validated using 4.7 fb−1 of proton-proton collision data at √s = 7 TeV collected with the ATLAS detector at the LHC. ... -
Measurement of Distributions Sensitive to the Underlying Event in Inclusive Z-Boson Production in pp Collisions at √s = 7 TeV With the ATLAS Detector
Franklin, Melissa; Huth, John; Ippolito, Valerio; Lopez Mateos, David; Mercurio, Kevin; Morii, Masahiro; Spearman, William; Sun, Siyuan; Tolley, Emma; Yen, Andy; Zevi Della Porta, G (Springer Nature, 2014)A measurement of charged-particle distributions sensitive to the properties of the underlying event is presented for an inclusive sample of events containing a Z -boson, decaying to an electron or muon pair. The measurement ... -
Measurement of Flow Harmonics With Multi-Particle Cumulants in Pb+Pb Collisions at √sNN =2.76 TeV With the ATLAS Detector
Franklin, Melissa; Huth, John; Ippolito, Valerio; Lopez Mateos, David; Mercurio, Kevin; Morii, Masahiro; Spearman, William; Sun, Siyuan; Yen, Andy; Zevi Della Porta, G (Springer Nature, 2014)[en] ATLAS measurements of the azimuthal anisotropy in lead.lead collisions at √sNN = 2.76 TeV are shown using a dataset of approximately 7 μb-1 collected at the LHC in 2010. The measurements are performed for charged ... -
Measurement of Jet Shapes in Top Pair Events at √s = 7 TeV Using the ATLAS Detector
Franklin, Melissa; Huth, John; Jeanty, L; Lopez Mateos, David; Mercurio, Kevin; Morii, Masahiro; Yen, Andy; Zevi Della Porta, G (Springer Nature, 2013)A measurement of jet shapes in top-quark pair events using 1.8 fb(-1) of √s = 7 TeV pp collision data recorded by the ATLAS detector at the LHC is presented. Samples of top-quark pair events are selected in both the ... -
Measurement of K T Splitting Scales in W→ℓν Events at √s=7 TeV With the ATLAS Detector
Barreiro Guimarães da Costa, Joao; Catastini, Pierluigi; Franklin, Melissa; Huth, John; Jeanty, L; Kagan, M; Lopez Mateos, David; Mercurio, Kevin; Morii, Masahiro; Skottowe, Hugh Philip; Yen, Andy; Zevi Della Porta, G (Springer Nature, 2013)A measurement of splitting scales, as defined by the k T clustering algorithm, is presented for final states containing a W boson produced in proton–proton collisions at a centre-of-mass energy of 7 TeV. The measurement ... -
Measurement of the Centrality and Pseudorapidity Dependence of the Integrated Elliptic Flow in Lead–lead Collisions at √sNN=2.76TeV With the ATLAS Detector
Franklin, Melissa; Huth, John; Ippolito, Valerio; Lopez Mateos, David; Mercurio, Kevin; Morii, Masahiro; Spearman, William; Yen, Andy; Zevi Della Porta, G (Springer Nature, 2014)The integrated elliptic flow of charged particles produced in Pb+Pb collisions at sNN=2.76 TeV has been measured with the ATLAS detector using data collected at the Large Hadron Collider. The anisotropy parameter, v2, was ... -
Measurement of the centrality dependence of the charged-particle pseudorapidity distribution in proton--lead collisions at √snn=5.02 TeV with the ATLAS detector
Franklin, Melissa; Huth, John; Lopez Mateos, David; Mercurio, Kevin; Morii, Masahiro; Spearman, William; Yen, Andy; Zevi Della Porta, Giovanni (Springer Nature, 2016)The centrality dependence of the mean charged-particle multiplicity as a function of pseudorapidity is measured in approximately 1 μb−1 of proton--lead collisions at a nucleon--nucleon centre-of-mass energy of √snn=5.02 ... -
Measurement of the Cross-Section for W Boson Production in Association with b-Jets in Proton-Proton Collisions at \(\sqrt s = 7\) TeV at the LHC using the ATLAS detector
Zevi Della Porta, Giovanni (2013-08-21)This dissertation presents a measurement of the W+b-jets \((pp → W + b(\bar{b}) + X)\) production cross-section in proton–proton collisions at a center-of-mass energy of 7 TeV at the LHC. The results are based on data ... -
Measurement of the Forward-Backward Asymmetry of Electron and Muon Pair-Production in Pp Collisions at √S = 7 TeV With the ATLAS Detector
Guimaraes da Costa, Joao; Butler, B.; Catastini, P.; Conti, G.; Franklin, Melissa; Huth, John; Ippolito, Valerio; Lopez, David; Mercurio, Kevin; Morii, Masahiro; Skottowe, H.P.; Spearman, William; Yen, Andy; Zevi Della Porta, G (Springer Nature, 2015-09)This paper presents a measurement of the triple-differential cross section for the Drell-Yan process Z/γ* → ℓ+ℓ− where ℓ is an electron or a muon. The measurement is performed for invariant masses of the lepton pairs, m ... -
Measurement of the Inclusive Jet Cross Section in pp Collisions at √s=2.76 TeV and Comparison to the Inclusive Jet Cross Section at √s=7 TeV Using the ATLAS Detector
Franklin, Melissa; Huth, John; Jeanty, L; Kagan, M; Lopez Mateos, David; Mercurio, Kevin; Morii, Masahiro; Zevi Della Porta, G (Springer Nature, 2013)Abstract : The inclusive jet cross-section has been measured in proton-proton collisions at √s=2.76 TeV in a dataset corresponding to an integrated luminosity of 0.20pb-1 collected with the ATLAS detector at the Large ... -
Measurement of the Inclusive Jet Cross-Section in pp Collisions at √s=2.76 TeV and Comparison to the Inclusive Jet Cross-Section at √s=7 TeV Using the ATLAS Detector
Franklin, Melissa; Huth, John; Jeanty, L; Kagan, M; Lopez Mateos, David; Mercurio, Kevin; Morii, Masahiro; Zevi Della Porta, G (Springer Nature, 2013)The inclusive jet cross-section has been measured in proton–proton collisions at s√=2.76 TeV in a dataset corresponding to an integrated luminosity of 0.20 pb−1 collected with the ATLAS detector at the Large Hadron Collider ... -
Measurement of the Production and Lepton Charge Asymmetry of W Bosons in Pb+Pb Collisions at √sNN = 2.76 TeV With the ATLAS Detector
Franklin, Melissa; Huth, John; Ippolito, Valerio; Lopez Mateos, David; Mercurio, Kevin; Morii, Masahiro; Spearman, William; Sun, Siyuan; Yen, Andy; Zevi Della Porta, G (Springer Nature, 2015)A measurement of W boson production in lead-lead collisions at √sNN=2.76 TeV is presented. It is based on the analysis of data collected with the ATLAS detector at the LHC in 2011 corresponding to an integrated luminosity ... -
A Measurement of the Ratio of the Production Cross Sections for W and Z Bosons in Association With Jets With the ATLAS Detector
Franklin, Melissa; Huth, John; Ippolito, Valerio; Lopez Mateos, David; Mercurio, Kevin; Morii, Masahiro; Spearman, William; Sun, Siyuan; Tolley, Emma; Yen, Andy; Zevi Della Porta, G (Springer Nature, 2014)The ratio of the production cross sections for W and Z bosons in association with jets has been measured in proton-proton collisions at s√ = 7 TeV with the ATLAS experiment at the Large Hadron Collider. The measurement is ... -
Measurement of the Top-Quark Mass in the Fully Hadronic Decay Channel From ATLAS Data at √s= 7TeV
Franklin, Melissa; Huth, John; Ippolito, Valerio; Lopez Mateos, David; Mercurio, Kevin; Spearman, William; Sun, Siyuan; Yen, Andy; Zevi Della Porta, G (Springer Nature, 2015)The mass of the top quark is measured in a data set corresponding to 4.6 fb-1 of proton–proton collisions with centre-of-mass energy √ = 7TeV collected by the ATLAS detector at the LHC. Events consistent with hadronic ... -
Measurement of the tt¯ Production Cross Section in the Tau+jets Channel Using the ATLAS Detector
Franklin, Melissa; Huth, John; Jeanty, L; Kagan, M; Lopez Mateos, David; Mercurio, Kevin; Morii, Masahiro; Yen, Andy; Zevi Della Porta, G (Springer Nature, 2013)A measurement of the top quark pair production cross section in the final state with a hadronically decaying tau lepton and jets is presented. The analysis is based on proton-proton collision data recorded by the ATLAS ... -
Measurement of Three-Jet Production Cross-Sections in pp Collisions at 7 TeV Centre-of-Mass Energy Using the ATLAS Detector
Franklin, Melissa; Huth, John; Ippolito, Valerio; Lopez Mateos, David; Mercurio, Kevin; Morii, Masahiro; Spearman, William; Sun, Siyuan; Tolley, Emma; Yen, Andy; Zevi Della Porta, G (Springer Nature, 2015)Double-differential three-jet production cross-sections are measured in proton-proton collisions at a centre-of-mass energy of √s=7 TeV using the ATLAS detector at the Large Hadron Collider. The measurements are presented ...