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 of normalized differential cross sections of top quark pair (tt production are presented as a function of the mass, the transverse momentum and the rapidity of the tt system in proton-proton collisions at center-of-mass energies of s=7 and 8 TeV. The data set corresponds to an integrated luminosity of 4.6 fb-1 at 7 TeV and 20.2 fb-1 at 8 TeV, recorded with the ATLAS detector at the Large Hadron Collider. Events with top quark pair signatures are selected in the dilepton final state, requiring exactly two charged leptons and at least two jets with at least one of the jets identified as likely to contain a b hadron. The measured distributions are corrected for detector effects and selection efficiency to cross sections at the parton level. The differential cross sections are compared with different Monte Carlo generators and theoretical calculations of tt production. The results are consistent with the majority of predictions in a wide kinematic range. © 2016 CERN.

Registro:

Documento: Artículo
Título:Measurement of top quark pair differential cross sections in the dilepton channel in pp collisions at √s =7 and 8 TeV with ATLAS
Autor:Aaboud, M. et al.
Este artículo contiene 2849 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2849 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Año:2016
Volumen:94
Número:9
DOI: http://dx.doi.org/10.1103/PhysRevD.94.092003
Título revista:Physical Review D
Título revista abreviado:Phy. Rev. D
ISSN:24700010
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_24700010_v94_n9_p_Aaboud

Referencias:

  • Measurement of the (Equation presented) production cross-section using (Equation presented) events with (Equation presented)-tagged jets in (Equation presented) collisions at (Equation presented) and 8 TeV with the ATLAS detector (2014) Eur. Phys. J. C, 74, p. 3109. , ATLAS Collaboration
  • Measurement of the (Equation presented) production cross section in the dilepton channel in (Equation presented) collisions at (Equation presented) J. High Energy Phys., 2012 (11), p. 067. , CMS Collaboration
  • Measurement of the (Equation presented) production cross section in the dilepton channel in (Equation presented) collisions at (Equation presented) J. High Energy Phys., 2014 (2), p. 024. , CMS Collaboration
  • Measurement of the (Equation presented) production cross section in the (Equation presented) channel in proton-proton collisions at (Equation presented) and 8 TeV J. High Energy Phys., 2016 (8), p. 029. , CMS Collaboration
  • Measurement of the (Equation presented) production cross-section using (Equation presented) events with b-tagged jets in (Equation presented) collisions at (Equation presented) with the ATLAS detector (2016) Phys. Lett. B, 761, p. 136. , ATLAS Collaboration
  • Measurement of the Top Quark Pair Production Cross Section in Proton-Proton Collisions at (Equation presented) (2016) Phys. Rev. Lett., 116, p. 052002. , CMS Collaboration
  • 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 (Equation presented) 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 differential top-quark-pair production cross sections in (Equation presented) 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 (Equation presented) 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 the (Equation presented) production cross section in the all-jets final state in (Equation presented) collisions at (Equation presented) (2016) Eur. Phys. J. C, 76, p. 128. , CMS Collaboration
  • The ATLAS experiment at the CERN Large Hadron Collider (2008) J. Instrum., 3, p. S08003. , ATLAS Collaboration
  • Improved luminosity determination in (Equation presented) collisions at (Equation presented) using the ATLAS detector at the LHC (2013) Eur. Phys. J. C, 73, p. 2518. , ATLAS Collaboration
  • ATLAS Collaboration, Luminosity determination in (Equation presented) collisions at (Equation presented) using the ATLAS detector at the LHC, arXiv:1608.03953; 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
  • ATLAS Collaboration, Report No. ATL-SOFT-PUB-2014-01, 2014, https://cds.cern.ch/record/1669341; Nason, P., A new method for combining NLO QCD with shower Monte Carlo algorithms J. High Energy Phys., 2004 (11), p. 040
  • Frixione, S., Nason, P., Oleari, C., Matching NLO QCD computations with parton shower simulations: The POWHEG method J. High Energy Phys., 2007 (11), p. 070
  • Alioli, S., Nason, P., Oleari, C., Re, E., A general framework for implementing NLO calculations in shower Monte Carlo programs: The POWHEG BOX J. High Energy Phys., 2010 (6), p. 043
  • 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
  • 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
  • ATLAS Collaboration, Report No. ATL-PHYS-PUB-2015-002, 2015, https://cds.cern.ch/record/1981319; ATLAS Collaboration, Report No. ATL-PHYS-PUB-2015-011, 2015, https://cds.cern.ch/record/2020602; 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
  • Pumplin, J., Stump, D.R., Huston, J., Lai, H.-L., Nadolsky, P., Tung, W.-K., New generation of parton distributions with uncertainties from global QCD analysis J. High Energy Phys., 2002 (7), p. 012
  • Frixione, S., Webber, B.R., Matching NLO QCD computations and parton shower simulations J. High Energy Phys., 2002 (6), p. 029
  • Frixione, S., Nason, P., Webber, B.R., Matching NLO QCD and parton showers in heavy flavor production J. High Energy Phys., 2003 (8), p. 007
  • Corcella, G., Knowles, I.G., Marchesini, G., Moretti, S., Odagiri, K., Richardson, P., Seymour, M.H., Webber, B.R., HERWIG 6: An event generator for hadron emission reactions with interfering gluons (including supersymmetric processes) J. High Energy Phys., 2001 (1), p. 010
  • Butterworth, J.M., Forshaw, J.R., Seymour, M.H., Multiparton interactions in photoproduction at HERA (1996) Z. Phys. C, 72, p. 637
  • ATLAS Collaboration, Report No. ATL-PHYS-PUB-2011-008, 2011, https://cds.cern.ch/record/1345343; Mangano, M.L., Piccinini, F., Polosa A, D., Moretti, M., Pittau, R., ALPGEN, a generator for hard multiparton processes in hadronic collisions J. High Energy Phys., 2003 (7), p. 001
  • Lai, H.L., Huston, J., Kuhlmann, S., Morfin, J., Olness, F., Owens, J.F., Pumplin, J., Tung, W.K., Global QCD analysis of parton structure of the nucleon: CTEQ5 parton distributions (2000) Eur. Phys. J. C, 12, p. 375
  • Measurement of (Equation presented) production with a veto on additional central jet activity in (Equation presented) collisions at (Equation presented) using the ATLAS detector (2012) Eur. Phys. J. C, 72, p. 2043. , ATLAS Collaboration
  • Measurement of the (Equation presented) production cross-section as a function of jet multiplicity and jet transverse momentum in 7 TeV proton-proton collisions with the ATLAS detector J. High Energy Phys., 2015 (1), p. 020. , ATLAS Collaboration
  • Cacciari, M., Czakon, M., Mangano, M., Mitov, A., Nason, P., Top-pair production at hadron colliders with next-to-next-to-leading logarithmic soft-gluon resummation (2012) Phys. Lett. B, 710, p. 612
  • Baernreuther, P., Czakon, M., Mitov, A., Percent-Level-Precision Physics at the Tevatron: Next-to-Next-to-Leading Order QCD Corrections to (Equation presented) (2012) Phys. Rev. Lett., 109, p. 132001
  • Czakon, M., Mitov, A., NNLO corrections to top pair production at hadron colliders: The quark-gluon reaction J. High Energy Phys., 2013 (1), p. 080
  • Czakon, M., Mitov, A., NNLO corrections to top-pair production at hadron colliders: The all-fermionic scattering channels J. High Energy Phys., 2012 (12), p. 054
  • 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
  • Czakon, M., Mitov, A., Top++: A program for the calculation of the top-pair cross-section at hadron colliders (2014) Comput. Phys. Commun., 185, p. 2930
  • Re, E., Single-top Wt-channel production matched with parton showers using the POWHEG method (2011) Eur. Phys. J. C, 71, p. 1547
  • Frixione, S., Laenen, E., Motylinski, P., White, C., Webber B, R., Single-top hadroproduction in association with a W boson J. High Energy Phys., 2008 (7), p. 029
  • Kidonakis, N., Two-loop soft anomalous dimensions for single top quark associated production with a W- or H (2010) Phys. Rev. D, 82, p. 054018
  • Gavin, R., Li, Y., Petriello, F., Quackenbush, S., FEWZ 2.0: A code for hadronic Z production at next-to-next-to-leading order (2011) Comput. Phys. Commun., 182, p. 2388
  • Measurement of the top quark-pair production cross section with ATLAS in (Equation presented) collisions at (Equation presented) (2011) Eur. Phys. J. C, 71, p. 1577. , ATLAS Collaboration
  • Measurement of the top quark pair production cross section in (Equation presented) collisions at (Equation presented) in dilepton final states with ATLAS (2012) Phys. Lett. B, 707, p. 459. , ATLAS Collaboration
  • Campbell, J.M., Ellis, R.K., Williams, C., Vector boson pair production at the LHC J. High Energy Phys., 2011 (7), p. 018
  • Alwall, J., Herquet, M., Maltoni, F., Mattelaer, O., Stelzer, T., MadGraph 5: Going beyond J. High Energy Phys., 2011 (6), p. 128
  • Kersevan, B.P., Richter-Was, E., The Monte Carlo event generator AcerMC versions 2.0 to 3.8 with interfaces to PYTHIA 6.4, HERWIG 6.5 and ARIADNE 4.1 (2013) Comput. Phys. Commun., 184, p. 919
  • Electron reconstruction and identification efficiency measurements with the ATLAS detector using the 2011 LHC proton-proton collision data (2014) Eur. Phys. J. C, 74, p. 2941. , ATLAS Collaboration
  • Rehermann, K., Tweedie, B., Efficient identification of boosted semileptonic top quarks at the LHC J. High Energy Phys., 2011 (3), p. 059
  • Cacciari, M., Salam, G.P., Soyez, G., The anti-k(t) jet clustering algorithm J. High Energy Phys., 2008 (4), p. 063
  • ATLAS Collaboration, Topological cell clustering in the ATLAS calorimeters and its performance in LHC run 1, arXiv:1603.02934; Jet energy measurement with the ATLAS detector in proton-proton collisions at (Equation presented) (2013) Eur. Phys. J. C, 73, p. 2304. , ATLAS Collaboration
  • ATLAS Collaboration, Report No. ATLAS-CONF-2013-083, 2013, https://cds.cern.ch/record/1570994; ATLAS Collaboration, Report No. ATLAS-CONF-2012-043, 2012, https://cds.cern.ch/record/1435197; ATLAS Collaboration, Report No. ATLAS-CONF-2014-046, 2014, https://cds.cern.ch/record/1741020; Performance of missing transverse momentum reconstruction in proton-proton collisions at (Equation presented) with ATLAS (2012) Eur. Phys. J. C, 72, p. 1844. , ATLAS Collaboration
  • T. Adye, Unfolding algorithms and tests using RooUnfold, arXiv:1105.1160; D'Agostini, G., A multidimensional unfolding method based on Bayes' theorem (1995) Nucl. Instrum. Methods Phys. Res., Sect. A, 362, p. 487
  • ATLAS Collaboration, Report No. ATL-PHYS-PUB-2014-005, 2014, https://cds.cern.ch/record/1703034; M. Botje, The PDF4LHC Working Group Interim Recommendations, arXiv:1101.0538; Martin, A.D., Stirling, W.J., Thorne, R.S., Watt, G., Parton distributions for the LHC (2009) Eur. Phys. J. C, 63, p. 189
  • Ball, R.D., Parton distributions with LHC data (2013) Nucl. Phys., B867, p. 244
  • Alwall, J., Comparative study of various algorithms for the merging of parton showers and matrix elements in hadronic collisions (2008) Eur. Phys. J. C, 53, p. 473
  • 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
  • ATLAS Collaboration, Report No. ATLAS-CONF-2013-088, 2013, https://cds.cern.ch/record/1580207; 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 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
  • ATLAS Collaboration, Report No. ATLAS-CONF-2012-097, 2012, https://cds.cern.ch/record/1460443; Tung, W.K., Lai, H.L., Belyaev, A., Pumplin, J., Stump, D., Yuan, C.-P., Heavy quark mass effects in deep inelastic scattering and global QCD analysis J. High Energy Phys., 2007 (2), p. 053
  • 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
  • Zhu, H.X., Li, C.S., Li, H.T., Shao, D.Y., Yang, L.L., Transverse-Momentum Resummation for Top-Quark Pairs at Hadron Colliders (2013) Phys. Rev. Lett., 110, p. 082001
  • Li, H.T., Li, C.S., Shao, D.Y., Yang, L.L., Zhu, H.X., Top quark pair production at small transverse momentum in hadronic collisions (2013) Phys. Rev. D, 88, p. 074004
  • Czakon, M., Heymes, D., Mitov, A., High-Precision Differential Predictions for Top-Quark Pairs at the LHC (2016) Phys. Rev. Lett., 116, p. 082003
  • ATLAS Collaboration, Report No. ATL-GEN-PUB-2016-002, 2016, https://cds.cern.ch/record/2202407

Citas:

---------- APA ----------
(2016) . Measurement of top quark pair differential cross sections in the dilepton channel in pp collisions at √s =7 and 8 TeV with ATLAS. Physical Review D, 94(9).
http://dx.doi.org/10.1103/PhysRevD.94.092003
---------- CHICAGO ----------
Aaboud, M. "Measurement of top quark pair differential cross sections in the dilepton channel in pp collisions at √s =7 and 8 TeV with ATLAS" . Physical Review D 94, no. 9 (2016).
http://dx.doi.org/10.1103/PhysRevD.94.092003
---------- MLA ----------
Aaboud, M. "Measurement of top quark pair differential cross sections in the dilepton channel in pp collisions at √s =7 and 8 TeV with ATLAS" . Physical Review D, vol. 94, no. 9, 2016.
http://dx.doi.org/10.1103/PhysRevD.94.092003
---------- VANCOUVER ----------
Aaboud, M. Measurement of top quark pair differential cross sections in the dilepton channel in pp collisions at √s =7 and 8 TeV with ATLAS. Phy. Rev. D. 2016;94(9).
http://dx.doi.org/10.1103/PhysRevD.94.092003