Navegar

Colección

Datos Estadísticas

Artículo

Estamos trabajando para incorporar este artículo al repositorio
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

Measurements are made of differential cross-sections of highly boosted pair-produced top quarks as a function of top-quark and tt. system kinematic observables using proton-proton collisions at a center-of-mass energy of s=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 large-radius 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 cross-section for tt. production in the fiducial phase-space region is 292±7(stat)±71(syst) fb, to be compared to the theoretical prediction of 384±36 fb. © 2018 CERN.

Registro:

Documento: Artículo
Título: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
Autor:Aaboud, M. et al.
Este artículo contiene 2888 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2888 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Año:2018
Volumen:98
Número:1
DOI: http://dx.doi.org/10.1103/PhysRevD.98.012003
Título revista:Physical Review D
Título revista abreviado:Phy. Rev. D
ISSN:24700010
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_24700010_v98_n1_p_Aaboud

Referencias:

  • Czakon, M., Heymes, D., Mitov, A., Pagani, D., Tsinikos, I., Zaro, M., Top-pair production at the LHC through NNLO QCD and NLO EW J. High Energy Phys., 2017 (10), p. 186
  • Kidonakis, N., Next-to-next-to-leading soft-gluon corrections for the top quark cross section and transverse momentum distribution (2010) Phys. Rev. D, 82, p. 114030
  • Ahrens, V., Ferroglia, A., Neubert, M., Pecjak, B.D., Yang, L.L., Renormalization-group improved predictions for top-quark pair production at hadron colliders J. High Energy Phys., 2010 (9), p. 097
  • Hill, C.T., Parke, S.J., Top production: Sensitivity to new physics (1994) Phys. Rev. D, 49, p. 4454
  • Frederix, R., Maltoni, F., Top pair invariant mass distribution: A window on new physics J. High Energy Phys., 2009 (1), p. 047
  • Hespel, B., Maltoni, F., Vryonidou, E., Signal background interference effects in heavy scalar production and decay to a top-anti-top pair J. High Energy Phys., 2016 (10), p. 016
  • Measurements of top quark pair relative differential cross-sections with ATLAS in (Equation presented) collisions at (Equation presented) (2013) Eur. Phys. J. C, 73, p. 2261. , ATLAS Collaboration
  • Measurements of normalized differential cross-sections for (Equation presented) production in (Equation presented) collisions at (Equation presented) using the ATLAS detector (2014) Phys. Rev. D, 90, p. 072004. , ATLAS Collaboration
  • Differential top-antitop cross-section measurements as a function of observables constructed from final-state particles using pp collisions at (Equation presented) in the ATLAS detector J. High Energy Phys., 2015 (6), p. 100. , ATLAS Collaboration
  • Measurement of the differential cross-section of highly boosted top quarks as a function of their transverse momentum in (Equation presented) proton-proton collisions using the ATLAS detector (2016) Phys. Rev. D, 93, p. 032009. , ATLAS Collaboration
  • Measurements of top-quark pair differential cross-sections in the (Equation presented) channel in (Equation presented) collisions at (Equation presented) using the ATLAS detector (2016) Eur. Phys. J. C, 76, p. 538. , ATLAS Collaboration
  • Measurement of top quark pair differential cross-sections in the dilepton channel in (Equation presented) collisions at (Equation presented) and 8 TeV with ATLAS (2016) Phys. Rev. D, 94, p. 092003. , ATLAS Collaboration
  • Measurements of top-quark pair differential cross-sections in the (Equation presented) channel in (Equation presented) collisions at (Equation presented) using the ATLAS detector (2017) Eur. Phys. J. C, 77, p. 292. , ATLAS Collaboration
  • Measurements of top-quark pair differential cross-sections in the (Equation presented) channel in (Equation presented) collisions at (Equation presented) using the ATLAS detector J. High Energy Phys., 2017 (11), p. 191. , ATLAS Collaboration
  • Measurement of differential top-quark-pair production cross sections in pp collisions at (Equation presented) (2013) Eur. Phys. J. C, 73, p. 2339. , CMS Collaboration
  • Measurement of the differential cross section for top quark pair production in pp collisions at (Equation presented) (2015) Eur. Phys. J. C, 75, p. 542. , CMS Collaboration
  • Measurement of the integrated and differential (Equation presented) production cross sections for high-(Equation presented) top quarks in (Equation presented) collisions at (Equation presented) (2016) Phys. Rev. D, 94, p. 072002. , CMS Collaboration
  • Measurement of differential cross sections for top quark pair production using the (Equation presented) final state in proton-proton collisions at 13 TeV (2017) Phys. Rev. D, 95, p. 092001. , CMS Collaboration
  • Measurement of double-differential cross sections for top quark pair production in pp collisions at (Equation presented) and impact on parton distribution functions (2017) Eur. Phys. J. C, 77, p. 459. , CMS Collaboration
  • Measurement of normalized differential (Equation presented) cross sections in the dilepton channel from pp collisions at (Equation presented) J. High Energy Phys., 2017 (4), p. 060. , CMS Collaboration
  • Measurement of the (Equation presented) production cross section in the all-jets final state in pp collisions at (Equation presented) (2016) Eur. Phys. J. C, 76, p. 128. , CMS Collaboration
  • Search for resonances decaying into top-quark pairs using fully hadronic decays in (Equation presented) collisions with ATLAS at (Equation presented) J. High Energy Phys., 2013 (1), p. 116. , ATLAS Collaboration
  • Search for New Phenomena in Dijet Angular Distributions in Proton-Proton Collisions at (Equation presented) Measured with the ATLAS Detector (2015) Phys. Rev. Lett., 114, p. 221802. , ATLAS Collaboration
  • Apanasevich, L., Evidence for Parton (Equation presented) Effects in High-(Equation presented) Particle Production (1998) Phys. Rev. Lett., 81, p. 2642
  • Search for new phenomena in dijet events using (Equation presented) of (Equation presented) collision data collected at (Equation presented) with the ATLAS detector (2017) Phys. Rev. D, 96, p. 052004. , ATLAS Collaboration
  • Denner, A., Dittmaier, S., Kallweit, S., Pozzorini, S., NLO QCD Corrections to (Equation presented) Production at Hadron Colliders (2011) Phys. Rev. Lett., 106, p. 052001
  • Bevilacqua, G., Czakon, M., Van Hameren, A., Papadopoulos, C.G., Worek, M., Complete off-shell effects in top quark pair hadroproduction with leptonic decay at next-to-leading order J. High Energy Phys., 2011 (2), p. 083
  • The ATLAS experiment at the CERN large hadron collider (2008) J. Instrum., 3, p. S08003. , ATLAS Collaboration
  • ATLAS Collaboration, ATLAS Insertable B-Layer Technical Design Report, Report No. ATLAS-TDR-19, 2010, https://cds.cern.ch/record/1291633;; ATLAS Collaboration ATLAS Insertable B-Layer Technical Design Report Addendum, Report No. ATLAS-TDR-19-ADD-1 (2012), http://cds.cern.ch/record/1451888; Performance of the ATLAS Trigger System in 2015 (2017) Eur. Phys. J. C, 77, p. 317. , ATLAS Collaboration
  • Sjöstrand, T., Mrenna, S., Skands, P.Z., A brief introduction to PYTHIA 8.1 (2008) Comput. Phys. Commun., 178, p. 852
  • ATLAS Collaboration, Further ATLAS tunes of Pythia 6 and Pythia 8, Report No. ATL-PHYS-PUB-2011-014, 2011, https://cds.cern.ch/record/1400677; Martin, A., Stirling, W., Thorne, R., Watt, G., Parton distributions for the LHC (2009) Eur. Phys. J. C, 63, p. 189
  • Agostinelli, S., GEANT4: A simulation toolkit (2003) Nucl. Instrum. Methods Phys. Res., Sect. A, 506, p. 250
  • The ATLAS simulation infrastructure (2010) Eur. Phys. J. C, 70, p. 823. , ATLAS Collaboration
  • Frixione, S., Nason, P., Ridolfi, G., A positive-weight next-to-leading-order Monte Carlo for heavy flavour hadroproduction J. High Energy Phys., 2007 (9), p. 126
  • Alwall, J., Frederix, R., Frixione, S., Hirschi, V., Maltoni, F., Mattelaer, O., Shao, H.-S., Zaro, M., The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations J. High Energy Phys., 2014 (7), p. 079
  • Gleisberg, T., Höche, S., Krauss, F., Schönherr, M., Schumann, S., Siegert, F., Winter, J., Event generation with SHERPA 1.1 J. High Energy Phys., 2009 (2), p. 007
  • Hoeche, S., Krauss, F., Schonherr, M., Siegert, F., A critical appraisal of (Equation presented) matching methods J. High Energy Phys., 2012 (9), p. 049
  • ATLAS Collaboration, Studies on top-quark Monte Carlo modelling for Top2016, Report No. ATL-PHYSPUB-2016-020, 2016, https://cds.cern.ch/record/2216168; Alioli, S., Hamilton, K., Nason, P., Oleari, C., Re, E., Jet pair production in POWHEG J. High Energy Phys., 2011 (4), p. 081
  • ATLAS Collaboration, ATLAS Pythia 8 tunes to 7 TeV data, Report No. ATL-PHYS-PUB-2014-021, 2014, https://cds.cern.ch/record/1966419; Ball, R.D., Parton distributions with LHC data (2013) Nucl. Phys., B867, p. 244
  • Bellm, J., Herwig 7.0/Herwig++ 3.0 release note (2016) Eur. Phys. J. C, 76, p. 196
  • Höche, S., Krauss, F., Schonherr, M., Siegert, F., QCD matrix (Equation presented): The NLO case J. High Energy Phys., 2013 (4), p. 027
  • Lai, H.-L., Guzzi, M., Huston, J., Li, Z., Nadolsky, P.M., Pumplin, J., Yuan, C.-P., New parton distributions for collider physics (2010) Phys. Rev. D, 82, p. 074024
  • Artoisenet, P., Frederix, R., Mattelaer, O., Rietkerk, R., Automatic spin-entangled decays of heavy resonances in Monte Carlo simulations J. High Energy Phys., 2013 (3), p. 015
  • Sjöstrand, T., Mrenna, S., Skands, P.Z., PYTHIA 6.4 Physics and Manual J. High Energy Phys., 2006 (5), p. 026
  • Skands, P.Z., Tuning Monte Carlo generators: The Perugia tunes (2010) Phys. Rev. D, 82, p. 074018
  • Lange, D.J., The EvtGen particle decay simulation package (2001) Nucl. Instrum. Methods Phys. Res., Sect. A, 462, p. 152
  • Czakon, M., Fiedler, P., Mitov, A., Total Top-Quark Pair-Production Cross Section at Hadron Colliders through (Equation presented) (2013) Phys. Rev. Lett., 110, p. 252004
  • N. Kidonakis, Top quark production, arXiv:1311.0283; Electron efficiency measurements with the ATLAS detector using 2012 LHC proton-proton collision data (2017) Eur. Phys. J. C, 77, p. 195. , ATLAS Collaboration
  • ATLAS Collaboration, Electron efficiency measurements with the ATLAS detector using the 2015 LHC proton-proton collision data, Report No. ATL-CONF-2016-024, 2016, https://cds.cern.ch/record/2157687; Muon reconstruction performance of the ATLAS detector in proton-proton collision data at (Equation presented) (2016) Eur. Phys. J. C, 76, p. 292. , ATLAS Collaboration
  • Cacciari, M., Salam, G.P., Soyez, G., The anti-(Equation presented) jet clustering algorithm J. High Energy Phys., 2008 (4), p. 063
  • Cacciari, M., Salam, G.P., Soyez, G., FastJet User Manual (2012) Eur. Phys. J. C, 72, p. 1896
  • Jet energy measurement with the ATLAS detector in proton-proton collisions at (Equation presented) (2013) Eur. Phys. J. C, 73, p. 2304. , ATLAS Collaboration
  • Jet energy measurement and its systematic uncertainty in proton-proton collisions at (Equation presented) with the ATLAS detector (2015) Eur. Phys. J. C, 75, p. 17. , ATLAS Collaboration
  • Single hadron response measurement and calorimeter jet energy scale uncertainty with the ATLAS detector at the LHC (2013) Eur. Phys. J. C, 73, p. 2305. , ATLAS Collaboration
  • Jet energy scale measurements and their systematic uncertainties in proton-proton collisions at (Equation presented) with the ATLAS detector (2017) Phys. Rev. D, 96, p. 072002. , ATLAS Collaboration
  • Performance of pile-up mitigation techniques for jets in (Equation presented) collisions at (Equation presented) using the ATLAS detector (2016) Eur. Phys. J. C, 76, p. 581. , ATLAS Collaboration
  • Performance of b-jet identification in the ATLAS experiment (2016) J. Instrum., 11, p. P04008. , ATLAS Collaboration
  • ATLAS Collaboration, Optimisation of the ATLAS b-tagging performance for the 2016 LHC Run, Report No. ATL-PHYS-PUB-2016-012, 2016, https://cds.cern.ch/record/2160731; Performance of jet substructure techniques for large-(Equation presented) jets in proton-proton collisions at (Equation presented) using the ATLAS detector J. High Energy Phys., 2013 (9), p. 076. , ATLAS Collaboration
  • Krohn, D., Thaler, J., Wang, L.-T., Jet trimming J. High Energy Phys., 2010 (2), p. 084
  • ATLAS Collaboration, Boosted hadronic top identification at ATLAS for early 13 TeV data, Report No. ATL-PHYS-PUB-2015-053, 2015, https://cds.cern.ch/record/2116351; Thaler, J., Tilburg, K.V., Identifying boosted objects with N-subjettiness J. High Energy Phys., 2011 (3), p. 015
  • Thaler, J., Tilburg, K.V., Maximizing boosted top identification by minimizing N-subjettiness J. High Energy Phys., 2012 (2), p. 093
  • Measurement of the inclusive jet cross-section in proton-proton collisions at (Equation presented) using (Equation presented) of data with the ATLAS detector J. High Energy Phys., 2015 (2), p. 153. , ATLAS Collaboration
  • Erratum J. High Energy Phys., 2015 (9), p. 141. , ATLAS Collaboration
  • ATLAS measurements of the properties of jets for boosted particle searches (2012) Phys. Rev. D, 86, p. 072006. , ATLAS Collaboration
  • ATLAS Collaboration, Jet mass reconstruction with the ATLAS Detector in early Run 2 data, Report No. ATLAS-CONF-2016-035, 2016, https://cds.cern.ch/record/2200211; Cacciari, M., Salam, G.P., Soyez, G., The catchment area of jets J. High Energy Phys., 2008 (4), p. 005
  • D'Agostini, G., A Multidimensional unfolding method based on Bayes' theorem (1995) Nucl. Instrum. Methods Phys. Res., Sect. A, 362, p. 487
  • T. Adye, Unfolding algorithms and tests using RooUnfold, arXiv:1105.1160; Patrignani, C., Review of Particle Physics (2016) Chin. Phys. C, 40, p. 100001. , (Particle Data Group)
  • See also, https://pdg.lbl.gov/; ATLAS Collaboration, Measurement of large radius jet mass reconstruction performance at (Equation presented) using the ATLAS detector, Report No. ATLAS-CONF-2016-008, 2016, https://cds.cern.ch/record/2139642; ATLAS Collaboration, Jet Calibration and Systematic Uncertainties for Jets Reconstructed in the ATLAS Detector at (Equation presented), Report No. ATL-PHYS-PUB-2015-015, 2015, https://cds.cern.ch/record/2037613; Jet energy resolution in proton-proton collisions at (Equation presented) recorded in 2010 with the ATLAS detector (2013) Eur. Phys. J. C, 73, p. 2306. , ATLAS Collaboration
  • Electron performance measurements with the ATLAS detector using the 2010 LHC proton-proton collision data (2012) Eur. Phys. J. C, 72, p. 1909. , ATLAS Collaboration
  • Butterworth, J., PDF4LHC recommendations for LHC Run II (2016) J. Phys. G, 43, p. 023001
  • Luminosity determination in (Equation presented) collisions at (Equation presented) using the ATLAS detector at the LHC (2016) Eur. Phys. J. C, 76, p. 653. , ATLAS Collaboration
  • ATLAS Collaboration, ATLAS Computing Acknowledgements 2016-2017, Report No. ATL-GEN-PUB-2016-002, https://cds.cern.ch/record/2202407

Citas:

---------- APA ----------
(2018) . 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. Physical Review D, 98(1).
http://dx.doi.org/10.1103/PhysRevD.98.012003
---------- CHICAGO ----------
Aaboud, M. "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" . Physical Review D 98, no. 1 (2018).
http://dx.doi.org/10.1103/PhysRevD.98.012003
---------- MLA ----------
Aaboud, M. "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" . Physical Review D, vol. 98, no. 1, 2018.
http://dx.doi.org/10.1103/PhysRevD.98.012003
---------- VANCOUVER ----------
Aaboud, M. 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. Phy. Rev. D. 2018;98(1).
http://dx.doi.org/10.1103/PhysRevD.98.012003