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Measurement of the $$t\bar{t}$$ production cross-section and lepton differential distributions in $$e\mu $$ dilepton events from pp collisions at $$\sqrt{s}=13\,\text {TeV}$$ with the ATLAS detector

descriptionPublicationkeyboard_double_arrow_right Article , Research , Preprint , Other literature type , Journal 01 Jun 2020Embargo end date: 01 Jan 2019 France, Switzerland, Turkey, China (People's Republic of), Italy, Australia, Netherlands, Italy, Norway, Netherlands, Italy, Italy, Turkey, Australia, Spain, United States, Norway, United Kingdom, Italy, Netherlands, Italy, Denmark, Italy, Italy, Sweden, Germany, United Kingdom, Netherlands, Italy, Spain, Germany, Portugal, China (People's Republic of), Australia, Italy, Italy, Netherlands, Czech Republic, Turkey, Spain, Chile, Italy, China (People's Republic of), Turkey, Czech Republic, Poland, United Kingdom, Italy, Italy, United Kingdom, Italy, Germany Publisher:Springer Science and Business Media LLCJournal:The European Physical Journal C, volume 80 (issn: 1434-6044, eissn: 1434-6052,

Authors: Aad, Georges; Abbott, Brad; Abreu, Henso; Arcangeletti, Chiara; Gutierrez, Phillip; Gutschow, Christian; Guyot, Claude; +193 Authors

Aad, Georges; Abbott, Brad; Abreu, Henso; Arcangeletti, Chiara; Gutierrez, Phillip; Gutschow, Christian; Guyot, Claude; Gwenlan, Claire; Gwilliam, Carl; Haas, Andy; Haber, Carl; Hadavand, Haleh Khani; Haddad, Nacim; Hadef, Asma; Arce, Ayana; Hageboeck, Stephan; Haleem, Mahsana; Haley, Joseph; Halladjian, Garabed; Hallewell, Gregory David; Hamacher, Klaus; Hamal, Petr; Hamano, Kenji; Hamdaoui, Hassane; Hamer, Matthias; Arduh, Francisco Anuar; Hamity, Guillermo Nicolas; Han, Kunlin; Han, Liang; Han, Shuo; Han, Yi Fei; Hanagaki, Kazunori; Hance, Michael; Handl, David Michael; Haney, Bijan; Hankache, Robert; Arguin, Jean-Francois; Hansen, Eva; Hansen, Jorgen Beck; Hansen, Jorn Dines; Hansen, Maike Christina; Hansen, Peter Henrik; Hanson, Emily Claire; Hara, Kazuhiko; Harenberg, Torsten; Harkusha, Siarhei; Harrison, Paul Fraser; Argyropoulos, Spyridon; Hartmann, Nikolai Marcel; Hasegawa, Yoji; Hasib, Ahmed; Hassani, Samira; Haug, Sigve; Hauser, Reiner; Havener, Laura Brittany; Havranek, Miroslav; Hawkes, Christopher; Hawkings, Richard; Arling, Jan-Hendrik; Hayden, Daniel; Hayes, Christopher; Hayes, Robin Leigh; Hays, Chris; Hays, Jonathan Michael; Hayward, Helen; Haywood, Stephen; He, Fudong; Heath, Matthew Peter; Hedberg, Vincent; Armbruster, Aaron James; Heelan, Louise; Heer, Sebastian; Heidegger, Kim Katrin; Heidorn, William Dale; Heilman, Jesse; Heim, Sarah; Heim, Timon Frank-thomas; Heinemann, Beate; Heinrich, Jochen Jens; Heinrich, Lukas; Armstrong, Alexander III; Hejbal, Jiri; Helary, Louis; Held, Alexander; Hellesund, Simen; Helling, Cole Michael; Hellman, Sten; Helsens, Clement; Henderson, Robert; Heng, Yang; Henkelmann, Lars; Arnaez, Olivier; Henkelmann, Steffen; Henriques Correia, Ana Maria; Herbert, Geoffrey Henry; Herde, Hannah; Herget, Verena; Hernandez Jimenez, Yesenia; Herr, Holger; Herrmann, Maximilian Georg; Herrmann, Tim; Herten, Gregor; Arnold, Hannah; Hertenberger, Ralf; Hervas, Luis; Herwig, Theodor Christian; Hesketh, Gavin Grant; Hessey, Nigel; Higashida, Akihiro; Higashino, Satoshi; Higon-Rodriguez, Emilio; Hildebrand, Kevin; Hill, Ewan; Abulaiti, Yiming; Arrubarrena Tame, Zulit Paola; Hill, John; Hill, Kurt Keys; Hiller, Karl Heinz; Hillier, Stephen; Hils, Maximilian; Hinchliffe, Ian; Hinterkeuser, Florian; Hirose, Minoru; Hirose, Shigeki; Hirschbuehl, Dominic; Artoni, Giacomo; Hiti, Bojan; Hladik, Ondrej; Hlaluku, Dingane Reward; Hoad, Xanthe; Hobbs, John; Hod, Noam; Hodgkinson, Mark; Hoecker, Andreas; Hohn, David; Hohov, Dmytro; Artz, Sebastian; Holm, Tanja; Holmes, Tova Ray; Holzbock, Michael; Hommels, Bart; Honda, Shunsuke; Hong, Tae Min; Honig, Jan Cedric; Honle, Andreas; Hooberman, Benjamin Henry; Hopkins, Walter Howard; Asai, Shoji; Horii, Yasuyuki; Horn, Philipp; Horyn, Lesya Anna; Hou, Suen; Hoummada, Abdeslam; Howarth, James; Hoya, Joaquin; Hrabovsky, Miroslav; Hrdinka, Julia; Hristova, Ivana; Asbah, Nedaa; Hrivnac, Julius; Hrynevich, Aliaksei; Hryn'ova, Tetiana; Hsu, Pai-hsien Jennifer; Hsu, Shih-Chieh; Hu, Qipeng; Hu, Shuyang; Hu, Yi Fan; Huang, Dan Ping; Huang, Yicong; Asimakopoulou, Eleni Myrto; Huang, Yanping; Hubacek, Zdenek; Hubaut, Fabrice; Huebner, Michael; Huegging, Fabian; Huffman, Todd Brian; Huhtinen, Mika; Hunter, Robert Francis; Huo, Peng; Hupe, Andre Marc; Asquith, Lily; Huseynov, Nazim; Huston, Joey; Huth, John; Hyneman, Rachel; Hyrych, Sofiia; Iacobucci, Giuseppe; Iakovidis, Georgios; Ibragimov, Iskander; Iconomidou-Fayard, Lydia; Idrissi, Zineb; Assahsah, Jihad; Iengo, Paolo; Ignazzi, Rosanna; Igonkina, Olga; Iguchi, Ryunosuke; Iizawa, Tomoya; Ikegami, Yoichi; Ikeno, Masahiro; Iliadis, Dimitrios;

doi: 10.1140/epjc/s10052-020-7907-9 , 10.48550/arxiv.1910.08819 , 10.3204/pubdb-2019-05253 , 10.17863/cam.54305 , 10.17863/cam.56336 , 10.17863/cam.53878 , 10.17863/cam.71238 , 10.3204/pubdb-2020-02552 , 10.17863/cam.55182

arXiv: 1910.08819 , http://arxiv.org/abs/1910.08819

Measurement of the $$t\bar{t}$$ production cross-section and lepton differential distributions in $$e\mu $$ dilepton events from pp collisions at $$\sqrt{s}=13\,\text {TeV}$$ with the ATLAS detector

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Abstract

AbstractThe inclusive top quark pair ($$t\bar{t}$$ t t ¯ ) production cross-section $$\sigma _{t\bar{t}}$$ σ t t ¯ has been measured in proton–proton collisions at $$\sqrt{s}=13\,\text {TeV}$$ s = 13 TeV , using 36.1 fb$$^{-1}$$ - 1 of data collected in 2015–2016 by the ATLAS experiment at the LHC. Using events with an opposite-charge $$e\mu $$ e μ pair and b-tagged jets, the cross-section is measured to be: $$\begin{aligned} \sigma _{t\bar{t}} = 826.4 \pm 3.6\,\mathrm {(stat)}\ \pm 11.5\,\mathrm {(syst)}\ \pm 15.7\,\mathrm {(lumi)}\ \pm 1.9\,\mathrm {(beam)}\,\mathrm {pb}, \end{aligned}$$ σ t t ¯ = 826.4 ± 3.6 ( stat ) ± 11.5 ( syst ) ± 15.7 ( lumi ) ± 1.9 ( beam ) pb , where the uncertainties reflect the limited size of the data sample, experimental and theoretical systematic effects, the integrated luminosity, and the LHC beam energy, giving a total uncertainty of 2.4%. The result is consistent with theoretical QCD calculations at next-to-next-to-leading order. It is used to determine the top quark pole mass via the dependence of the predicted cross-section on $$m_t^{\mathrm{pole}}$$ m t pole , giving $$m_t^{\mathrm{pole}}=173.1^{+2.0}_{-2.1}\,\text {GeV}$$ m t pole = 173 . 1 - 2.1 + 2.0 GeV . It is also combined with measurements at $$\sqrt{s}=7\,\text {TeV}$$ s = 7 TeV and $$\sqrt{s}=8\,\text {TeV}$$ s = 8 TeV to derive ratios and double ratios of $$t\bar{t}$$ t t ¯ and Z cross-sections at different energies. The same event sample is used to measure absolute and normalised differential cross-sections as functions of single-lepton and dilepton kinematic variables, and the results are compared with predictions from various Monte Carlo event generators.

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France, Switzerland, Turkey, China (People's Republic of), Italy, Australia, Netherlands, Italy, Norway, Netherlands, Italy, Italy, Turkey, Australia, Spain, United States, Norway, United Kingdom, Italy, Netherlands, Italy, Denmark, Italy, Italy, Sweden, Germany, United Kingdom, Netherlands, Italy, Spain, Germany, Portugal, China (People's Republic of), Australia, Italy, Italy, Netherlands, Czech Republic, Turkey, Spain, Chile, Italy, China (People's Republic of), Turkey, Czech Republic, Poland, United Kingdom, Italy, Italy, United Kingdom, Italy, Germany

Related Organizations

University of Edinburgh
United Kingdom
National Technical University of Athens
Greece
Harvard University
United States
Spanish National Research Council
Spain
Nagoya University
Japan

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Keywords

Plus Plus, 13000 GeV-cms, ((n)jet dilepton) [final state], Mathematical Analysis, Atomic, rapidity dependence, Particle and Plasma Physics, CERN, scattering [p p], Boson, Mass spectrum: (electron muon), Q007X13, (electron muon) [mass spectrum], info:eu-repo/classification/ddc/530, Monte Carlo, Statistics, Particle physics, VDP::Kjerne- og elementærpartikkelfysikk: 431, mass: pole, ratio: measured [cross section], Higgs Bosons, Monte Carlo [numerical calculations], Differential cross section: measured, mass dependence, Settore FIS/01 - FISICA SPERIMENTALE, CERN LHC Coll, Particle and high energy physics, statistics, kinematics, Beam: energy, Physical Sciences, Transverse momentum dependence, Rapidity dependence, colliding beams [p p], Mass dependence, top: pair production, numerical calculations: Monte Carlo, p p: scattering, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], LHC, ATLAS, High Energy Physics, energy dependence, mass spectrum: (electron muon), Matematisk analys, quantum chromodynamics, High Energy Physics, molecular and optical physics, Q007TP4, Parton Distributions, final state: ((n)jet dilepton), P p: colliding beams, 500, Molecular, Channel cross section: measured, cross section: ratio: measured, p p: colliding beams, :Kjerne- og elementærpartikkelfysikk: 431 [VDP], Kinematics, measured [channel cross section], pair production [top], transverse momentum dependence, energy [beam], High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], PLUS PLUS, Partons, Quantum Physics, Particle and High Energy Physics, ATLAS, Nuclear and Plasma Physics, Nuclear & Particles Physics, :Nuclear and elementary particle physics: 431 [VDP], P p: scattering, VDP::Nuclear and elementary particle physics: 431, LHC, channel cross section: measured, Mass: pole, ATLAS; LHC ; top quark, Regular Article - Experimental Physics, FOS: Physical sciences, 530, info:eu-repo/classification/ddc/500.2, beam: energy, differential cross section: measured, measured [differential cross section], Nuclear, Experimental results, High energy physics, Top: pair production, numerical calculations, Numerical calculations: Monte Carlo, hep-ex, Energy dependence, Física, 541, Final state: ((n)jet dilepton), PARTON DISTRIBUTIONS, Astronomical sciences, Hadron-hadron collisions ; top quark, Cross section: ratio: measured, pole [mass], Quantum chromodynamics, experimental results

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Measurement Of The $T\Overline{T}$ Production Cross-Section And Lepton Differential Distributions In $E\Mu $ Dilepton Events From Pp Collisions At $\Sqrt{S}=13\Phantom{\Rule{0.166667Em}{0Ex}}\Text{Tev}$ With The Atlas Detector
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