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Differential top-antitop cross-section measurements as a function of observables constructed from final-state particles using pp collisions at s=7 TeV in the ATLAS detector

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ATLAS Collaboration (Including: Beckingham, M., Farrington, Sinead, Harrison, P. F., Janus, M., Jeske, C., Jones, G., Martin, T. A., Murray, W. and Pianori, E.). (2015) Differential top-antitop cross-section measurements as a function of observables constructed from final-state particles using pp collisions at s=7 TeV in the ATLAS detector. Journal of High Energy Physics, 2015 (6). 100. doi:10.1007/jhep06(2015)100

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Official URL: http://doi.org/10.1007/jhep06(2015)100

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Abstract

Various differential cross-sections are measured in top-quark pair tt¯ events produced in proton-proton collisions at a centre-of-mass energy of s=7 TeV at the LHC with the ATLAS detector. These differential cross-sections are presented in a data set corresponding to an integrated luminosity of 4.6 fb−1. The differential cross-sections are presented in terms of kinematic variables, such as momentum, rapidity and invariant mass, of a top-quark proxy referred to as the pseudo-top-quark as well as the pseudo-top-quark pair system. The dependence of the measurement on theoretical models is minimal.The measurements are performed on tt¯ events in the lepton+jets channel, requiring exactly one charged lepton and at least four jets with at least two of them tagged as originating from a b-quark. The hadronic and leptonic pseudo-top-quarks are defined via the leptonic or hadronic decay mode of the W boson produced by the top-quark decay in events with a single charged lepton. Differential cross-section measurements of the pseudo-top-quark variables are compared with several Monte Carlo models that implement next-to-leading order or leading-order multi-leg matrix-element calculations.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Physics
SWORD Depositor: Library Publications Router
Library of Congress Subject Headings (LCSH): Particles (Nuclear physics), Hadrons—Scattering, Hadron colliders., Particles (Nuclear physics)—Flavor
Journal or Publication Title: Journal of High Energy Physics
Publisher: Springer
ISSN: 1029-8479
Official Date: 16 June 2015
Dates:
DateEvent
16 June 2015Published
27 May 2015Accepted
Volume: 2015
Number: 6
Article Number: 100
DOI: 10.1007/jhep06(2015)100
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
UNSPECIFIEDAgencia Nacional de Promoción Científica y Tecnológicahttp://dx.doi.org/10.13039/501100003074
UNSPECIFIED[ARC] Australian Research Councilhttp://dx.doi.org/10.13039/501100000923
UNSPECIFIEDBundesministerium für Wissenschaft, Forschung und Wirtschafthttp://dx.doi.org/10.13039/501100003413
UNSPECIFIEDAustrian Science Fundhttp://dx.doi.org/10.13039/501100002428
UNSPECIFIEDConselho Nacional de Desenvolvimento Científico e Tecnológicohttp://dx.doi.org/10.13039/501100003593
UNSPECIFIEDFundação de Amparo à Pesquisa do Estado de São Paulohttp://dx.doi.org/10.13039/501100001807
UNSPECIFIED[NSERC] Natural Sciences and Engineering Research Council of Canadahttp://dx.doi.org/10.13039/501100000038
UNSPECIFIED[NRC] National Research Council Canadahttp://dx.doi.org/10.13039/501100000046
UNSPECIFIED[CFI] Canada Foundation for Innovationhttp://dx.doi.org/10.13039/501100000196
UNSPECIFIEDCERNhttp://dx.doi.org/10.13039/100012470
UNSPECIFIED[CONICYT] Comisión Nacional de Investigación Científica y Tecnológicahttp://dx.doi.org/10.13039/501100002848
UNSPECIFIED[NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809
UNSPECIFIEDMinistry of Science and Technology, Taiwanhttp://dx.doi.org/10.13039/501100004663
UNSPECIFIEDColombia.‏ ‎‡b Departamento Administrativo de Ciencia, Tecnología e Innovación‏http://viaf.org/viaf/173248635
UNSPECIFIEDMinisterstvo Průmyslu a Obchoduhttp://viaf.org/viaf/141216211
UNSPECIFIEDMinisterstvo Průmyslu a Obchoduhttp://viaf.org/viaf/141216211
UNSPECIFIEDDanmarks Grundforskningsfondhttp://dx.doi.org/10.13039/501100001732
UNSPECIFIEDNatur og Univers, Det Frie Forskningsrådhttp://dx.doi.org/10.13039/100008394
UNSPECIFIED[IN2P3] Institut national de physique nucléaire et de physique des particuleshttp://viaf.org/viaf/137207166
UNSPECIFIEDShota Rustaveli National Science Foundationhttp://dx.doi.org/10.13039/501100004801
UNSPECIFIEDErewani Fizikayi Institowt‏http://viaf.org/viaf/138989470
UNSPECIFIEDHelmholtz-Gemeinschafthttp://dx.doi.org/10.13039/501100001656
UNSPECIFIEDMax-Planck-Gesellschafthttp://dx.doi.org/10.13039/501100004189
UNSPECIFIEDGeneral Secretariat for Research and Technologyhttp://dx.doi.org/10.13039/501100003448
UNSPECIFIEDResearch Grants Council, University Grants Committeehttp://dx.doi.org/10.13039/501100002920
UNSPECIFIEDIsrael Science Foundationhttp://dx.doi.org/10.13039/501100003977
UNSPECIFIEDNella and Leon Benoziyo Center for Neurological Diseases, Weizmann Institute of Sciencehttp://dx.doi.org/10.13039/501100003941
UNSPECIFIED[INFN] Instituto Nazionale di Fisica Nuclearehttp://dx.doi.org/10.13039/501100004007
UNSPECIFIED[MSTPRC] Ministry of Science and Technology of the People's Republic of Chinahttp://dx.doi.org/10.13039/501100002855
National Strategic Reference Framework (NSRF)European Commissionhttp://dx.doi.org/10.13039/501100000780
UNSPECIFIED[MEXT] Ministry of Education, Culture, Sports, Science and Technologyhttp://dx.doi.org/10.13039/501100001700
UNSPECIFIED[JSPS] Japan Society for the Promotion of Sciencehttp://dx.doi.org/10.13039/501100001691
UNSPECIFIEDCentre National pour la Recherche Scientifique et Techniquehttp://dx.doi.org/10.13039/501100006319
UNSPECIFIEDStichting voor Fundamenteel Onderzoek der Materie‏http://viaf.org/viaf/131981579
UNSPECIFIEDNorges Forskningsrådhttp://dx.doi.org/10.13039/501100005416
UNSPECIFIEDPoland.‏ Ministerstwo Szkolnictwa Wyższegohttp://viaf.org/viaf/142521822
UNSPECIFIEDNarodowe Centrum Naukihttp://dx.doi.org/10.13039/501100004281
UNSPECIFIEDFundo Regional para a Ciência e Tecnologiahttp://dx.doi.org/10.13039/100008382
UNSPECIFIED[MES] Ministry of Education and Science of the Russian Federationhttp://dx.doi.org/10.13039/501100003443
UNSPECIFIEDState Atomic Energy Corporation ROSATOMhttp://dx.doi.org/10.13039/501100008687
UNSPECIFIEDJoint Institute for Nuclear Researchhttp://dx.doi.org/10.13039/501100003822
UNSPECIFIEDMinistry of Science, Technology and Development (Serbia)UNSPECIFIED
UNSPECIFIEDMinisterstvo spravodlivostiUNSPECIFIED
UNSPECIFIEDJavna Agencija za Raziskovalno Dejavnost RShttp://dx.doi.org/10.13039/501100004329
UNSPECIFIEDMinistrstvo za Izobraževanje, Znanost in Športhttp://dx.doi.org/10.13039/501100005989
UNSPECIFIEDDepartment of Science and Technology, Republic of South Africahttp://dx.doi.org/10.13039/501100001342
UNSPECIFIED[MINECO] Ministerio de Economía y Competitividadhttp://dx.doi.org/10.13039/501100003329
UNSPECIFIEDVetenskapsrådet‏http://viaf.org/viaf/129987660
UNSPECIFIEDKnut och Alice Wallenbergs Stiftelsehttp://dx.doi.org/10.13039/501100004063
UNSPECIFIED[SERI] Staatssekretariat für Bildung, Forschung und Innovationhttp://dx.doi.org/10.13039/501100007352
UNSPECIFIED[SNSF] Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschunghttp://dx.doi.org/10.13039/501100001711
UNSPECIFIEDNational Science Councilhttp://dx.doi.org/10.13039/501100001868
UNSPECIFIEDTürkiye Atom Enerjisi Kurumuhttp://viaf.org/viaf/135144877
UNSPECIFIED[STFC] Science and Technology Facilities Councilhttp://dx.doi.org/10.13039/501100000271
UNSPECIFIED[RS] Royal Societyhttp://dx.doi.org/10.13039/501100000288
UNSPECIFIEDLeverhulme Trusthttp://dx.doi.org/10.13039/501100000275
UNSPECIFIED[DOE] U.S. Department of Energyhttp://dx.doi.org/10.13039/100000015
UNSPECIFIEDNational Science Foundationhttp://dx.doi.org/10.13039/100000001
UNSPECIFIEDNederlandse Organisatie voor Wetenschappelijk Onderzoekhttp://dx.doi.org/10.13039/501100003246

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