Measurement of the $\mathrm{{t\bar{t}}}$ production cross section in pp collisions at $\sqrt{s}=7$ TeV using the kinematic properties of events with leptons and jets
The European Physical Journal CPublished 1 September 2011Open access
S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer
Citations55
SJR quartileQ1
SJR score1.34
SNIP1.41
Generate an AI Snapshot to get a quick, structured summary of this paper.
Study Snapshot
ObjectiveStudy objective
MethodsResearch methodology
PopulationPopulation studied
Sample sizeSample sizes
OutcomesStudy outcomes here
ResultsStudy results comes here
LimitationsResearch study limitations comes here
A concise AI-generated summary of the paper will appear here once you click Generate AI Snapshot.
Abstract
A measurement of the t t production cross section in proton-proton collisions at a centre-of-mass energy of 7 TeV has been performed at the LHC with the CMS detector. The analysis uses a data sample corresponding to an integrated luminosity of 36 pb -1 and is based on the reconstruction of the final state with one isolated, high transversemomentum electron or muon and three or more hadronic jets. The kinematic properties of the events are used to separate the t t signal from W+jets and QCD multijet background events. The measured cross section is 173 +39 -32 (stat.+ syst.) pb, consistent with standard model expectations.
Keywords
Physics and Astronomy
Journal of High Energy PhysicsPYTHIA 6.4 physics and manual
8,897 Citations2006Torbjörn Sjöstrand, S. Mrenna +1 more
IEEE Transactions on Nuclear ScienceGeant4 developments and applications
6,900 Citations2006John E. Allison, K. Amako +71 more
An overview of recent developments in diverse areas of the Geant4 toolkit includes performance optimization for complex setups; improvements for the propagation in fields; new options for event biasing; and additions and improvements in geometry, physics processes and interactive capabilities.
Journal of High Energy PhysicsThe anti-<i>k</i><sub><i>t</i></sub>jet clustering algorithm
6,212 Citations2008Matteo Cacciari, Gavin P Salam +1 more
The k_t and Cambridge/Aachen inclusive jet finding algorithms for hadron-hadron collisions can be seen as belonging to a broader class of sequential recombination jet algorithms, parametrised by the power of the energy scale in the distance measure, is examined.
Journal of InstrumentationThe CMS experiment at the CERN LHC
5,454 Citations2008S. Chatrchyan, G. Hmayakyan +2045 more
The anti-k_t jet clustering algorithm
3,787 Citations2008Cacciari, Matteo, Salam, Gavin P. +1 more
Journal of High Energy PhysicsHERWIG 6: an event generator for hadron emission reactions with interfering gluons (including supersymmetric processes)
2,037 Citations2001Gennaro Corcella, I.G. Knowles +6 more
Physical Review LettersObservation of Top Quark Production in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mrow><mml:mover><mml:mrow><mml:mi mathvariant="italic">p</mml:mi></mml:mrow><mml:mrow><mml:mi>¯</mml:mi></mml:mrow></mml:mover></mml:mrow></mml:mrow><mml:mi mathvariant="italic">p</mml:mi></mml:math>Collisions with the Collider Detector at Fermilab
1,404 Citations1995F. Abe, H. Akimoto +434 more
The existence of the top quark is established using a 67pb{sup {minus}1} data sample of {ital p}{ovr bar}{ital p} collisions at {radical}{ital s}=1.8TeV collected with the Collider Detector at Fermilab (CDF).
Physics Letters BDispelling the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:msup><mml:mi>N</mml:mi><mml:mn>3</mml:mn></mml:msup></mml:math> myth for the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si2.gif" overflow="scroll"><mml:msub><mml:mi>k</mml:mi><mml:mi>t</mml:mi></mml:msub></mml:math> jet-finder
1,371 Citations2006Matteo Cacciari, Gavin P. Salam
Journal of High Energy PhysicsMadGraph/MadEvent v4: the new web generation
1,321 Citations2007Johan Alwall, P. Demin +7 more
Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmologyImplications of CTEQ global analysis for collider observables
1,308 Citations2008Pavel Nadolsky, Hung-Liang Lai +6 more
Physical Review LettersObservation of the Top Quark
1,296 Citations1995S. Abachi, B. Abbott +401 more
The D0 collaboration reports on a search for the Standard Model top quark in p{bar p} collisions at {radical}s = 1.8 TeV at the Fermilab Tevatron, with an integrated luminosity of approximately 50 pb{sup {minus}1}.
Philosophical Transactions of the Royal Society of London Series A Mathematical and Physical SciencesOutline of a Theory of Statistical Estimation Based on the Classical Theory of Probability
1,085 Citations1937Jerzy Neyman
Nuclear Physics BThe total cross section for the production of heavy quarks in hadronic collisions
936 Citations1988Paolo Nason, S. Dawson +1 more
Journal of High Energy PhysicsMatching matrix elements and shower evolution for top-pair production in hadronic collisions
665 Citations2007Michelangelo L. Mangano, M. Moretti +2 more
Computer Physics CommunicationsHATHOR – HAdronic Top and Heavy quarks crOss section calculatoR
625 Citations2010M. Aliev, H. Lacker +4 more
A program to calculate the total cross section for top-quark pair production in hadronic collisions takes into account recent theoretical developments and allows for studies of the theoretical uncertainty by separate variations of the factorization and renormalization scales.
Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmologyElectroweak gauge boson production at hadron colliders through<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="script">O</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:msubsup><mml:mi>α</mml:mi><mml:mi>s</mml:mi><mml:mn>2</mml:mn></mml:msubsup><mml:mo stretchy="false">)</mml:mo></mml:math>
602 Citations2006Kirill Melnikov, Frank Petriello
Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fieldsQCD corrections to heavy-quark production in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mrow><mml:mrow><mml:mover><mml:mrow><mml:mi>p</mml:mi></mml:mrow><mml:mrow><mml:mi>¯</mml:mi></mml:mrow></mml:mover></mml:mrow></mml:mrow></mml:math>collisions
567 Citations1989W. Beenakker, H. Kuijf +2 more
arXiv (Cornell University)The PDF4LHC Working Group Interim Recommendations
488 Citations2011M. Botje, J. M. Butterworth +9 more
The European Physical Journal CUncertainties on α S in global PDF analyses and implications for predicted hadronic cross sections
486 Citations2009A. D. Martin, W.J. Stirling +2 more
Nuclear Physics BOn the production of a W and jets at hadron colliders
282 Citations1991F.A. Berends, H. Kuijf +2 more
Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmologyMeasuring the running top-quark mass
274 Citations2009Ulrich Langenfeld, S. Moch +1 more
Journal of High Energy PhysicsUpdated predictions for the total production cross sections of top and of heavier quark pairs at the Tevatron and at the LHC
273 Citations2008Matteo Cacciari, Stefano Frixione +3 more
Nuclear Physics BTop quark pair production and decay at hadron colliders
258 Citations2004W. Bernreuther, A. Brandenburg +2 more
Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmologySingle top-quark production and decay at next-to-leading order
244 Citations2004John M. Campbell, R. Keith Ellis +1 more
CERN Document Server (European Organization for Nuclear Research)The Les Houches Accord PDFs (LHAPDF) and Lhaglue
241 Citations2005M. R. Whalley, D. Bourilkov
LHAGLUE, an add-on PDFLIB look-a-like interface to LHAPDF, which facilitates using LH APDF with existing Monte Carlo generators such as PYTHIA and HERWIG is described.
Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmologyNext-to-next-to-leading soft-gluon corrections for the top quark cross section and transverse momentum distribution
241 Citations2010Nikolaos Kidonakis
The European Physical Journal CMeasurement of the top quark-pair production cross section with ATLAS in pp collisions at $\sqrt{s}=7$ TeV
232 Citations2011G. Aad, B. Abbott +3083 more
Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fieldsRadiative corrections to<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>Zb</mml:mi><mml:mrow><mml:mrow><mml:mover><mml:mrow><mml:mi>b</mml:mi></mml:mrow><mml:mrow><mml:mi>¯</mml:mi></mml:mrow></mml:mover></mml:mrow></mml:mrow></mml:math>production
187 Citations2000John M. Campbell, R. Keith Ellis
Nuclear Physics BNext-to-leading order corrections to Wt production and decay
184 Citations2005John M. Campbell, Francesco Tramontano
Physical Review LettersNext-to-Leading-Order Predictions for<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>t</mml:mi></mml:math>-Channel Single-Top Production at Hadron Colliders
179 Citations2009J. M. Campbell, R. Frederix +2 more
This work presents the predictions at next-to-leading order (NLO) in the strong coupling for the single-top cross section in the t channel at the Tevatron and the LHC and shows that the 2-->3 calculation is very well behaved and in substantial agreement with the predictions based on the2-->2 process.
Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmologyUncertainty induced by QCD coupling in the CTEQ global analysis of parton distributions
176 Citations2010Hung-Liang Lai, J. Huston +5 more
The European Physical Journal CCMS tracking performance results from early LHC operation
171 Citations2010V. Khachatryan, A. M. Sirunyan +2087 more
Physical Review LettersTop-Quark Spin Correlations at Hadron Colliders: Predictions at Next-to-Leading Order QCD
144 Citations2001W. Bernreuther, A. Brandenburg +2 more
This Letter presents for the reactions pp, pp-->tt+X-->l+l'-+X the first calculation of the dilepton angular distribution at next-to-leading order in the QCD coupling, keeping the full dependence on the spins of the intermediate tt state.
Physics Letters BFirst measurement of the cross section for top-quark pair production in proton–proton collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>7</mml:mn><mml:mtext> </mml:mtext><mml:mtext>TeV</mml:mtext></mml:math>
140 Citations2010V. Khachatryan, A. M. Sirunyan +2171 more
The European Physical Journal CElectron reconstruction in CMS
100 Citations2007S. Baffioni, C. Charlot +7 more
Nuclear Physics BInclusive heavy flavor hadroproduction in NLO QCD: The exact analytic result
99 Citations2009M. Czakon, Alexander Mitov
The European Physical Journal CTop quark production at hadron colliders: Some useful formulae
85 Citations1988Ronald Kleiss, W.J. Stirling
Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmologyImpact of parton distribution function and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>α</mml:mi><mml:mi>s</mml:mi></mml:msub></mml:math>uncertainties on Higgs boson production in gluon fusion at hadron colliders
76 Citations2010Federico Demartin, Stefano Forte +3 more
Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmologyMeasurement of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>t</mml:mi><mml:mover accent="true"><mml:mi>t</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math>production cross section in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mover accent="true"><mml:mi>p</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math>collisions at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>1.96</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>TeV</mml:mi></mml:math>using secondary vertex<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>b</mml:mi></mml:math>tagging
54 Citations2006V. M. Abazov, B. Abbott +578 more
Physics Letters BMeasurement of the charge ratio of atmospheric muons with the CMS detector
53 Citations2010V. Khachatryan, A. M. Sirunyan +2070 more
Journal of Computational PhysicsEvent classification using weighting methods
47 Citations1987R. J. Barlow
The general method of estimating the numbers of different classes of events in a sample by use of a weighting technique, with particular reference to high energy physics experiments, is considered and how to construct the optimal weight function is shown.
Status and Prospects of Top-Quark Physics
32 Citations2009Joseph Incandela, A. Quadt +2 more
Progress in Particle and Nuclear PhysicsStatus and prospects of top-quark physics
31 Citations2009Joseph R. Incandela, Arnulf Quadt +2 more
Enlighten: Publications (The University of Glasgow)Next-to-leading order corrections to Wt production and decay
30 Citations2005John M. Campbell, Francesco Tramontano