publication . Article . Other literature type . Preprint . 2015

Measurement of the top quark mass in the t\bar{t}\rightarrow lepton+jets and t\bar{t}\rightarrow dilepton channels using \sqrt{s}=7 TeV ATLAS data

CERN, 1211, Geneva 23, Switzerland; Aad, G.(CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, France); Abbott, B.(Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, OK, USA); Abdallah, J.(Institute of Physics, Academia Sinica, Taipei, Taiwan); Abdinov, O.(Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan); Aben, R.(Nikhef National Institute for Subatomic Physics and University of Amsterdam, Amsterdam, The Netherlands); Abolins, M.(Department of Physics and Astronomy, Michigan State University, East Lansing, MI, USA); AbouZeid, O. S.(Department of Physics, University of Toronto, Toronto, ON, Canada); Abramowicz, H.(Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv, Israel); Abreu, H.(Department of Physics, Technion: Israel Institute of Technology, Haifa, Israel); ...
Open Access
  • Published: 17 Jul 2015 Journal: The European Physical Journal C, volume 75, issue 7, page 3,544
Abstract
The top quark mass was measured in the channels tt¯ → lepton+jets and tt¯ → dilepton (lepton = e, μ) based on ATLAS data recorded in 2011. The data were taken at the LHC with a proton–proton centre-of-mass energy of √s = 7 TeV and correspond to an integrated luminosity of 4.6 fb<sup>-1</sup>. The tt¯ → lepton+jets analysis uses a three-dimensional template technique which determines the top quark mass together with a global jet energy scale factor (JSF), and a relative b-to-light-jet energy scale factor (bJSF), where the terms b-jets and light-jets refer to jets originating from b-quarks and u, d, c, s-quarks or gluons, respectively. The analysis of the tt¯ → di...
Subjects
arXiv: High Energy Physics::ExperimentHigh Energy Physics::PhenomenologyNuclear ExperimentAstrophysics::High Energy Astrophysical Phenomena
free text keywords: CARLO EVENT GENERATOR; PARTON DISTRIBUTIONS; HADRON COLLIDERS; STANDARD; MODEL; LHC; PHYSICS, Top Quark Mass, ATLAS Experiment, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Physics and Astronomy (miscellaneous); LHC; ATLAS; top quark, Settore FIS/01 - Fisica Sperimentale, Settore FIS/04 - Fisica Nucleare e Subnucleare, Regular Article - Experimental Physics, Ciencias Exactas, Física, quarks, ATLAS data, :Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 [VDP], :Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 [VDP], scattering [p p], colliding beams [p p], pair production [top], mass: measured [top], final state [dilepton], ((n)jet lepton) [final state], particle identification [bottom], data analysis method, ATLAS, CERN LHC Coll, experimental results, p p --> 2top anything, 7000 GeV-cms, Particle Physics - Experiment, QC, 530, Physical Sciences, High Energy Physics - Experiment, Physics and Astronomy (miscellaneous); Engineering (miscellaneous), top quark mass; ATLAS, Fysik, Physics and Astronomy (miscellaneous), Engineering (miscellaneous), :Ciências Físicas [Ciências Naturais], Science & Technology, Ciências Naturais::Ciências Físicas, ATLAS, детектор, Большой адронный коллайдер, столкновение частиц, кварки, протоны, ddc:500.2, ddc:530, ddc:539, Particle physics, Physics, Lepton, Top quark
Funded by
EC| EPLANET
Project
EPLANET
European Particle physics Latin American NETwork
  • Funder: European Commission (EC)
  • Project Code: 246806
  • Funding stream: FP7 | SP3 | PEOPLE
,
SNSF| Teilchenphysik-Experimente und Entwicklung von Teilchen-Detektoren
Project
  • Funder: Swiss National Science Foundation (SNSF)
  • Project Code: 200020_149246
  • Funding stream: Project funding | Project funding (Div. I-III)
Communities
EGI FederationEGI virtual organizations: atlas
156 references, page 1 of 11

1. ALEPH, CDF, D0, DELPHI, L3, OPAL, SLD Collaborations, the LEP Electroweak Working Group, the Tevatron Electroweak Working Group and the SLD Electroweak and Heavy Flavour Groups, Precision electroweak measurements and constraints on the Standard Model. arXiv:1012.2367 [hep-ex]

2. M. Baak et al., The global electroweak fit at NNLO and prospects for the LHC and ILC. Eur. Phys. J. C 74, 3046 (2014). arXiv:1407.3792 [hep-ph] [OpenAIRE]

3. K.A. Olive et al., (Particle Data Group), Review of particle physics. Chin. Phys. C 38, 090001 (2014)

4. G. Degrassi et al., Higgs mass and vacuum stability in the Standard Model at NNLO. JHEP 1208, 98 (2012). arXiv:1205.6497 [hep-ex]

5. F. Bezrukov, M. Shaposhnikov, The Standard Model Higgs boson as the inflaton. Phys. Lett. B 659, 703 (2008). arXiv:0710.3755 [hep-th]

6. A. De Simone, M.P. Herzberg, F. Wilczek, Running inflation in the Standard Model. Phys. Lett. B 678, 1 (2009). arXiv:0812.4946 [hep-ph]

7. Tevatron Electroweak Working Group, Combination of CDF and D0 results on the mass of the top quark using up to 9.7 fb−1 at the Tevatron, CDF Note 11105 and D0 Note 6444 (2014). arXiv:1407.2682 [hep-ex]

8. ATLAS Collaboration, Measurement of the top quark mass with the template method in the top antitop → lepton + jets channel using ATLAS data. Eur. Phys. J. C 72, 2046 (2012). arXiv:1203.5755 [hep-ex]

9. CMS Collaboration, Measurement of the top-quark mass in t t¯ events with lepton+jets final states in pp collisions at √s = 7 TeV. JHEP 1212, 105 (2012). arXiv:1209.2319 [hep-ex]

10. CMS Collaboration, Measurement of the top-quark mass in t t¯ events with dilepton final states in pp collisions at √s = 7 TeV. Eur. Phys. J. C 72, 2202 (2012). arXiv:1209.2393 [hep-ex]

11. CMS Collaboration, Measurement of the mass of the t t¯ system by kinematic endpoints in pp collisions at √s = 7TeV. Eur. Phys. J. C 73, 2494 (2013). arXiv:1304.5783 [hep-ex]

12. CMS Collaboration, Measurement of the top-quark mass in all-jets t t¯ events in pp collisions at √s = 7 TeV. Eur. Phys. J. C 74, 2758 (2014). arXiv:1307.4617 [hep-ex]

13. ATLAS Collaboration, Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at √s = 7 TeV. arXiv:1409.0832 [hep-ex] (submitted to Eur. Phys. J. C)

14. ATLAS and CMS Collaborations, Combination of ATLAS and CMS results on the mass of the top quark using up to 4.9 fb−1 of data. CMS-PAS-TOP-13-005 and ATLAS-CONF-2013- 102 (2013). http://cds.cern.ch/record/1601811, http://cds.cern.ch/ record/1603490

15. ATLAS, CDF, CMS and D0 Collaborations, First combination of Tevatron and LHC measurements of the top-quark mass. ATLAS-CONF-2014-008, CDF-NOTE-11071, CMS-PAS-TOP13-014, D0-NOTE-6416 (2014). arXiv:1403.4427 [hep-ex]

156 references, page 1 of 11
Abstract
The top quark mass was measured in the channels tt¯ → lepton+jets and tt¯ → dilepton (lepton = e, μ) based on ATLAS data recorded in 2011. The data were taken at the LHC with a proton–proton centre-of-mass energy of √s = 7 TeV and correspond to an integrated luminosity of 4.6 fb<sup>-1</sup>. The tt¯ → lepton+jets analysis uses a three-dimensional template technique which determines the top quark mass together with a global jet energy scale factor (JSF), and a relative b-to-light-jet energy scale factor (bJSF), where the terms b-jets and light-jets refer to jets originating from b-quarks and u, d, c, s-quarks or gluons, respectively. The analysis of the tt¯ → di...
Subjects
arXiv: High Energy Physics::ExperimentHigh Energy Physics::PhenomenologyNuclear ExperimentAstrophysics::High Energy Astrophysical Phenomena
free text keywords: CARLO EVENT GENERATOR; PARTON DISTRIBUTIONS; HADRON COLLIDERS; STANDARD; MODEL; LHC; PHYSICS, Top Quark Mass, ATLAS Experiment, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Physics and Astronomy (miscellaneous); LHC; ATLAS; top quark, Settore FIS/01 - Fisica Sperimentale, Settore FIS/04 - Fisica Nucleare e Subnucleare, Regular Article - Experimental Physics, Ciencias Exactas, Física, quarks, ATLAS data, :Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 [VDP], :Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 [VDP], scattering [p p], colliding beams [p p], pair production [top], mass: measured [top], final state [dilepton], ((n)jet lepton) [final state], particle identification [bottom], data analysis method, ATLAS, CERN LHC Coll, experimental results, p p --> 2top anything, 7000 GeV-cms, Particle Physics - Experiment, QC, 530, Physical Sciences, High Energy Physics - Experiment, Physics and Astronomy (miscellaneous); Engineering (miscellaneous), top quark mass; ATLAS, Fysik, Physics and Astronomy (miscellaneous), Engineering (miscellaneous), :Ciências Físicas [Ciências Naturais], Science & Technology, Ciências Naturais::Ciências Físicas, ATLAS, детектор, Большой адронный коллайдер, столкновение частиц, кварки, протоны, ddc:500.2, ddc:530, ddc:539, Particle physics, Physics, Lepton, Top quark
Funded by
EC| EPLANET
Project
EPLANET
European Particle physics Latin American NETwork
  • Funder: European Commission (EC)
  • Project Code: 246806
  • Funding stream: FP7 | SP3 | PEOPLE
,
SNSF| Teilchenphysik-Experimente und Entwicklung von Teilchen-Detektoren
Project
  • Funder: Swiss National Science Foundation (SNSF)
  • Project Code: 200020_149246
  • Funding stream: Project funding | Project funding (Div. I-III)
Communities
EGI FederationEGI virtual organizations: atlas
156 references, page 1 of 11

1. ALEPH, CDF, D0, DELPHI, L3, OPAL, SLD Collaborations, the LEP Electroweak Working Group, the Tevatron Electroweak Working Group and the SLD Electroweak and Heavy Flavour Groups, Precision electroweak measurements and constraints on the Standard Model. arXiv:1012.2367 [hep-ex]

2. M. Baak et al., The global electroweak fit at NNLO and prospects for the LHC and ILC. Eur. Phys. J. C 74, 3046 (2014). arXiv:1407.3792 [hep-ph] [OpenAIRE]

3. K.A. Olive et al., (Particle Data Group), Review of particle physics. Chin. Phys. C 38, 090001 (2014)

4. G. Degrassi et al., Higgs mass and vacuum stability in the Standard Model at NNLO. JHEP 1208, 98 (2012). arXiv:1205.6497 [hep-ex]

5. F. Bezrukov, M. Shaposhnikov, The Standard Model Higgs boson as the inflaton. Phys. Lett. B 659, 703 (2008). arXiv:0710.3755 [hep-th]

6. A. De Simone, M.P. Herzberg, F. Wilczek, Running inflation in the Standard Model. Phys. Lett. B 678, 1 (2009). arXiv:0812.4946 [hep-ph]

7. Tevatron Electroweak Working Group, Combination of CDF and D0 results on the mass of the top quark using up to 9.7 fb−1 at the Tevatron, CDF Note 11105 and D0 Note 6444 (2014). arXiv:1407.2682 [hep-ex]

8. ATLAS Collaboration, Measurement of the top quark mass with the template method in the top antitop → lepton + jets channel using ATLAS data. Eur. Phys. J. C 72, 2046 (2012). arXiv:1203.5755 [hep-ex]

9. CMS Collaboration, Measurement of the top-quark mass in t t¯ events with lepton+jets final states in pp collisions at √s = 7 TeV. JHEP 1212, 105 (2012). arXiv:1209.2319 [hep-ex]

10. CMS Collaboration, Measurement of the top-quark mass in t t¯ events with dilepton final states in pp collisions at √s = 7 TeV. Eur. Phys. J. C 72, 2202 (2012). arXiv:1209.2393 [hep-ex]

11. CMS Collaboration, Measurement of the mass of the t t¯ system by kinematic endpoints in pp collisions at √s = 7TeV. Eur. Phys. J. C 73, 2494 (2013). arXiv:1304.5783 [hep-ex]

12. CMS Collaboration, Measurement of the top-quark mass in all-jets t t¯ events in pp collisions at √s = 7 TeV. Eur. Phys. J. C 74, 2758 (2014). arXiv:1307.4617 [hep-ex]

13. ATLAS Collaboration, Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at √s = 7 TeV. arXiv:1409.0832 [hep-ex] (submitted to Eur. Phys. J. C)

14. ATLAS and CMS Collaborations, Combination of ATLAS and CMS results on the mass of the top quark using up to 4.9 fb−1 of data. CMS-PAS-TOP-13-005 and ATLAS-CONF-2013- 102 (2013). http://cds.cern.ch/record/1601811, http://cds.cern.ch/ record/1603490

15. ATLAS, CDF, CMS and D0 Collaborations, First combination of Tevatron and LHC measurements of the top-quark mass. ATLAS-CONF-2014-008, CDF-NOTE-11071, CMS-PAS-TOP13-014, D0-NOTE-6416 (2014). arXiv:1403.4427 [hep-ex]

156 references, page 1 of 11
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