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Article: Measurements of tt differential cross-sections of highly boosted top quarks decaying to all-hadronic final states in pp collisions at √s=13 TeV using the ATLAS detector

TitleMeasurements of tt differential cross-sections of highly boosted top quarks decaying to all-hadronic final states in pp collisions at √s=13 TeV using the ATLAS detector
Authors
Issue Date2018
PublisherAmerican Physical Society. The Journal's web site is located at http://journals.aps.org/prd/
Citation
Physical Review D: covering particles, fields, gravitation, and cosmology, 2018, v. 98 n. 1, p. 012003:1-39 How to Cite?
AbstractMeasurements are made of differential cross-sections of highly boosted pair-produced top quarks as a function of top-quark and t¯t system kinematic observables using proton-proton collisions at a center-ofmass energy of ffiffi s p ¼ 13 TeV. The data set corresponds to an integrated luminosity of 36.1 fb−1, recorded in 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider. Events with two largeradius jets in the final state, one with transverse momentum pT > 500 GeV and a second with pT > 350 GeV, are used for the measurement. The top-quark candidates are separated from the multijet background using jet substructure information and association with a b-tagged jet. The measured spectra are corrected for detector effects to a particle-level fiducial phase space and a parton-level limited phase space, and are compared to several Monte Carlo simulations by means of calculated χ2 values. The crosssection for t¯t production in the fiducial phase-space region is 292 7ðstatÞ 71ðsystÞ fb, to be compared to the theoretical prediction of 384 36 fb.
Persistent Identifierhttp://hdl.handle.net/10722/258716
ISSN
2015 Impact Factor: 4.506

 

DC FieldValueLanguage
dc.contributor.authorLo, CY-
dc.contributor.authorOrlando, N-
dc.contributor.authorTu, Y-
dc.date.accessioned2018-08-22T01:42:55Z-
dc.date.available2018-08-22T01:42:55Z-
dc.date.issued2018-
dc.identifier.citationPhysical Review D: covering particles, fields, gravitation, and cosmology, 2018, v. 98 n. 1, p. 012003:1-39-
dc.identifier.issn2470-0010-
dc.identifier.urihttp://hdl.handle.net/10722/258716-
dc.description.abstractMeasurements are made of differential cross-sections of highly boosted pair-produced top quarks as a function of top-quark and t¯t system kinematic observables using proton-proton collisions at a center-ofmass energy of ffiffi s p ¼ 13 TeV. The data set corresponds to an integrated luminosity of 36.1 fb−1, recorded in 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider. Events with two largeradius jets in the final state, one with transverse momentum pT > 500 GeV and a second with pT > 350 GeV, are used for the measurement. The top-quark candidates are separated from the multijet background using jet substructure information and association with a b-tagged jet. The measured spectra are corrected for detector effects to a particle-level fiducial phase space and a parton-level limited phase space, and are compared to several Monte Carlo simulations by means of calculated χ2 values. The crosssection for t¯t production in the fiducial phase-space region is 292 7ðstatÞ 71ðsystÞ fb, to be compared to the theoretical prediction of 384 36 fb.-
dc.languageeng-
dc.publisherAmerican Physical Society. The Journal's web site is located at http://journals.aps.org/prd/-
dc.relation.ispartofPhysical Review D: covering particles, fields, gravitation, and cosmology-
dc.rightsPhysical Review D: covering particles, fields, gravitation, and cosmology. Copyright © American Physical Society.-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.titleMeasurements of tt differential cross-sections of highly boosted top quarks decaying to all-hadronic final states in pp collisions at √s=13 TeV using the ATLAS detector-
dc.typeArticle-
dc.identifier.emailOrlando, N: norlando@hku.hk-
dc.identifier.emailTu, Y: yanjuntu@hku.hk-
dc.identifier.authorityTu, Y=rp01971-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1103/PhysRevD.98.012003-
dc.identifier.hkuros287657-
dc.identifier.volume98-
dc.identifier.issue1-
dc.identifier.spage012003:1-
dc.identifier.epage39-
dc.publisher.placeUnited States-

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