Measurement of [Formula: see text] production with additional jet activity, including [Formula: see text] quark jets, in the dilepton decay channel using pp collisions at [Formula: see text]

. 2016 ; 76 (7) : 379. [epub] 20160707

Status PubMed-not-MEDLINE Jazyk angličtina Země Francie Médium print-electronic

Typ dokumentu časopisecké články

Perzistentní odkaz   https://www.medvik.cz/link/pmid28280447

Jet multiplicity distributions in top quark pair ([Formula: see text]) events are measured in pp collisions at a centre-of-mass energy of 8 TeV with the CMS detector at the LHC using a data set corresponding to an integrated luminosity of 19.7[Formula: see text]. The measurement is performed in the dilepton decay channels ([Formula: see text], [Formula: see text], and [Formula: see text]). The absolute and normalized differential cross sections for [Formula: see text] production are measured as a function of the jet multiplicity in the event for different jet transverse momentum thresholds and the kinematic properties of the leading additional jets. The differential [Formula: see text] and [Formula: see text] cross sections are presented for the first time as a function of the kinematic properties of the leading additional [Formula: see text] jets. Furthermore, the fraction of events without additional jets above a threshold is measured as a function of the transverse momenta of the leading additional jets and the scalar sum of the transverse momenta of all additional jets. The data are compared and found to be consistent with predictions from several perturbative quantum chromodynamics event generators and a next-to-leading order calculation.

1 Physikalisches Institut RWTH Aachen University Aachen Germany

3 Physikalisches Institut A RWTH Aachen University Aachen Germany

3 Physikalisches Institut B RWTH Aachen University Aachen Germany

Academy of Scientific Research and Technology of the Arab Republic of Egypt Egyptian Network of High Energy Physics Cairo Egypt

Baylor University Waco USA

Benemerita Universidad Autonoma de Puebla Puebla Mexico

Bhabha Atomic Research Centre Mumbai India

Bogazici University Istanbul Turkey

Boston University Boston USA

Brown University Providence USA

Brunel University Uxbridge UK

California Institute of Technology Pasadena USA

Carnegie Mellon University Pittsburgh USA

Centre de Calcul de l'Institut National de Physique Nucleaire et de Physique des Particules CNRS IN2P3 Villeurbanne France

Centro Brasileiro de Pesquisas Fisicas Rio de Janeiro Brazil

Centro de Investigacion y de Estudios Avanzados del IPN Mexico City Mexico

Centro de Investigaciones Energéticas Medioambientales y Tecnológicas Madrid Spain

CERN European Organization for Nuclear Research Geneva Switzerland

CERN Geneva Switzerland

Charles University Prague Czech Republic

Chonbuk National University Jeonju Korea

Cornell University Ithaca USA

Cukurova University Adana Turkey

Department of Physics Faculty of Science Chulalongkorn University Bangkok Thailand

Department of Physics University of Helsinki Helsinki Finland

Deutsches Elektronen Synchrotron Hamburg Germany

DSM IRFU CEA Saclay Gif sur Yvette France

Faculty of Electrical Engineering Mechanical Engineering and Naval Architecture University of Split Split Croatia

Faculty of Physics and Vinca Institute of Nuclear Sciences University of Belgrade Belgrade Serbia

Faculty of Science University of Split Split Croatia

Fermi National Accelerator Laboratory Batavia USA

Florida Institute of Technology Melbourne USA

Florida International University Miami USA

Florida State University Tallahassee USA

Georgian Technical University Tbilisi Georgia

Ghent University Ghent Belgium

Helsinki Institute of Physics Helsinki Finland

Imperial College London UK

Indian Institute of Science Education and Research Pune India

INFN Laboratori Nazionali di Frascati Frascati Italy

INFN Sezione di Bari Università di Bari Politecnico di Bari Bari Italy

INFN Sezione di Bologna Università di Bologna Bologna Italy

INFN Sezione di Catania Università di Catania Catania Italy

INFN Sezione di Firenze Università di Firenze Florence Italy

INFN Sezione di Genova Università di Genova Genoa Italy

INFN Sezione di Milano Bicocca Università di Milano Bicocca Milan Italy

INFN Sezione di Napoli Università di Napoli 'Federico II' Napoli Italy Università della Basilicata Potenza Italy Università G Marconi Rome Italy

INFN Sezione di Padova Università di Padova Padova Italy Università di Trento Trento Italy

INFN Sezione di Pavia Università di Pavia Pavia Italy

INFN Sezione di Perugia Università di Perugia Perugia Italy

INFN Sezione di Pisa Università di Pisa Scuola Normale Superiore di Pisa Pisa Italy

INFN Sezione di Roma Università di Roma Rome Italy

INFN Sezione di Torino Università di Torino Turin Italy Università del Piemonte Orientale Novara Italy

INFN Sezione di Trieste Università di Trieste Trieste Italy

Institut de Physique Nucléaire de Lyon Université de Lyon Université Claude Bernard Lyon 1 CNRS IN2P3 Villeurbanne France

Institut für Experimentelle Kernphysik Karlsruhe Germany

Institut für Hochenergiephysik der OeAW Vienna Austria

Institut Pluridisciplinaire Hubert Curien Université de Strasbourg Université de Haute Alsace Mulhouse CNRS IN2P3 Strasbourg France

Institute for Nuclear Research and Nuclear Energy Sofia Bulgaria

Institute for Nuclear Research Moscow Russia

Institute for Particle Physics ETH Zurich Zurich Switzerland

Institute for Research in Fundamental Sciences Tehran Iran

Institute for Scintillation Materials of National Academy of Science of Ukraine Kharkov Ukraine

Institute for Theoretical and Experimental Physics Moscow Russia

Institute for Universe and Elementary Particles Chonnam National University Kwangju Korea

Institute of Experimental Physics Faculty of Physics University of Warsaw Warsaw Poland

Institute of High Energy Physics Beijing China

Institute of Nuclear and Particle Physics NCSR Demokritos Aghia Paraskevi Greece

Institute of Nuclear Research ATOMKI Debrecen Hungary

Institute Rudjer Boskovic Zagreb Croatia

Instituto de Física de Cantabria CSIC Universidad de Cantabria Santander Spain

Istanbul Technical University Istanbul Turkey

Johns Hopkins University Baltimore USA

Joint Institute for Nuclear Research Dubna Russia

Kangwon National University Chunchon Korea

Kansas State University Manhattan USA

Korea University Seoul Korea

Kyungpook National University Daegu Korea

Laboratoire Leprince Ringuet Ecole Polytechnique IN2P3 CNRS Palaiseau France

Laboratório de Instrumentação e Física Experimental de Partículas Lisbon Portugal

Lappeenranta University of Technology Lappeenranta Finland

Lawrence Livermore National Laboratory Livermore USA

Massachusetts Institute of Technology Cambridge USA

National Central University Chung Li Taiwan

National Centre for Nuclear Research Swierk Poland

National Centre for Particle and High Energy Physics Minsk Belarus

National Centre for Particle Physics Universiti Malaya Kuala Lumpur Malaysia

National Centre for Physics Quaid 1 Azam University Islamabad Pakistan

National Institute of Chemical Physics and Biophysics Tallinn Estonia

National Institute of Science Education and Research Bhubaneswar India

National Research Nuclear University 'Moscow Engineering Physics Institute' Moscow Russia

National Scientific Center Kharkov Institute of Physics and Technology Kharkov Ukraine

National Taiwan University Taipei Taiwan

Northeastern University Boston USA

Northwestern University Evanston USA

P N Lebedev Physical Institute Moscow Russia

Panjab University Chandigarh India

Paul Scherrer Institut Villigen Switzerland

Petersburg Nuclear Physics Institute Gatchina St Petersburg Russia

Physics Department Middle East Technical University Ankara Turkey

Princeton University Princeton USA

Purdue University Calumet Hammond USA

Purdue University West Lafayette USA

Rice University Houston USA

Rutgers The State University of New Jersey Piscataway USA

Rutherford Appleton Laboratory Didcot UK

Saha Institute of Nuclear Physics Kolkata India

Seoul National University Seoul Korea

Skobeltsyn Institute of Nuclear Physics Lomonosov Moscow State University Moscow Russia

State Key Laboratory of Nuclear Physics and Technology Peking University Beijing China

State Research Center of Russian Federation Institute for High Energy Physics Protvino Russia

State University of New York at Buffalo Buffalo USA

Sungkyunkwan University Suwon Korea

Tata Institute of Fundamental Research Mumbai India

Tbilisi State University Tbilisi Georgia

Texas A and M University College Station USA

Texas Tech University Lubbock USA

The Ohio State University Columbus USA

The University of Alabama Tuscaloosa USA

The University of Iowa Iowa City USA

The University of Kansas Lawrence USA

Universidad Autónoma de Madrid Madrid Spain

Universidad Autónoma de San Luis Potosí San Luis Potosí Mexico

Universidad de Los Andes Bogota Colombia

Universidad de Oviedo Oviedo Spain

Universidad Iberoamericana Mexico City Mexico

Universidade do Estado do Rio de Janeiro Rio de Janeiro Brazil

Universidade Estadual Paulista Universidade Federal do ABC São Paulo Brazil

Universität Zürich Zurich Switzerland

Université Catholique de Louvain Louvain la Neuve Belgium

Université de Mons Mons Belgium

Université Libre de Bruxelles Brussels Belgium

Universiteit Antwerpen Antwerp Belgium

University College Dublin Dublin Ireland

University of Athens Athens Greece

University of Auckland Auckland New Zealand

University of Bristol Bristol UK

University of California Davis Davis USA

University of California Los Angeles USA

University of California Riverside Riverside USA

University of California San Diego La Jolla USA

University of California Santa Barbara Santa Barbara USA

University of Canterbury Christchurch New Zealand

University of Colorado Boulder Boulder USA

University of Cyprus Nicosia Cyprus

University of Debrecen Debrecen Hungary

University of Delhi Delhi India

University of Florida Gainesville USA

University of Hamburg Hamburg Germany

University of Illinois at Chicago Chicago USA

University of Ioánnina Ioánnina Greece

University of Maryland College Park USA

University of Minnesota Minneapolis USA

University of Mississippi Oxford USA

University of Nebraska Lincoln Lincoln USA

University of Notre Dame Notre Dame USA

University of Puerto Rico Mayaguez USA

University of Rochester Rochester USA

University of Seoul Seoul Korea

University of Sofia Sofia Bulgaria

University of Tennessee Knoxville USA

University of Virginia Charlottesville USA

University of Wisconsin Madison USA

Vanderbilt University Nashville USA

Vilnius University Vilnius Lithuania

Vrije Universiteit Brussel Brussels Belgium

Wayne State University Detroit USA

Wigner Research Centre for Physics Budapest Hungary

Yerevan Physics Institute Yerevan Armenia

Zobrazit více v PubMed

CMS Collaboration, Measurement of the

ATLAS Collaboration, Measurement of the PubMed PMC

CMS Collaboration, Measurement of differential top-quark pair production cross sections in pp collisions at

ATLAS Collaboration, Measurements of top quark pair relative differential cross-sections with ATLAS in

CMS Collaboration, Measurement of jet multiplicity distributions in PubMed PMC

ATLAS Collaboration, Measurements of normalized differential cross-sections for

ATLAS Collaboration, Measurements of the production cross-section as a function of jet multiplicity and jet transverse momentum in 7 TeV proton–proton collisions with the ATLAS detector. JHEP 01, 020 (2015). doi:10.1007/JHEP01(0215)020. arXiv:1407.0891

CMS Collaboration, Measurement of the differential cross section for top quark pair production cross section in pp collisions at PubMed PMC

ATLAS Collaboration, Measurement of the top pair production cross section in 8 TeV proton–proton collisions using kinematic information in the lepton+jets final state with ATLAS. Phys. Rev. D 91, 112013 (2015). doi:10.1103/PhysRevD.91.112013. arXiv:1504.04251

CMS Collaboration, The CMS experiment at the CERN LHC. JINST 3, S08004 (2008). doi:10.1088/1748-0221/3/08/S08004

CMS Collaboration, Measurement of the cross section ratio

ATLAS Collaboration, Measurement of PubMed PMC

Alwall J, et al. MadGraph v5: going beyond. JHEP. 2011;06:128. doi: 10.1007/JHEP06(2011)128. DOI

Frixione S, Webber BR. Matching NLO QCD computations and parton shower simulations. JHEP. 2002;06:029. doi: 10.1088/1126-6708/2002/06/029. DOI

Frixione S, Nason P, Oleari C. Matching NLO QCD computations with Parton Shower simulations: the POWHEG method. JHEP. 2007;11:070. doi: 10.1088/1126-6708/2007/11/070. DOI

Alwall J, et al. The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations. JHEP. 2014;07:079. doi: 10.1007/JHEP07(2014)079. DOI

T. Sjöstrand, S. Mrenna, P.Z. Skands, PYTHIA 6.4 physics and manual. JHEP 05, 026 (2006). doi:10.1088/1126-6708/2006/05/026. arXiv:hep-ph/0603175

Corcella G, et al. HERWIG 6: an event generator for hadron emission reactions with interfering gluons (including supersymmetric processes) JHEP. 2001;01:010. doi: 10.1088/1126-6708/2001/01/010. DOI

Garzelli MV, Kardos A, Trócsányi Z. Hadroproduction of DOI

GEANT4 Collaboration, GEANT4—a simulation toolkit. Nucl. Instrum. Methods A 506, 250 (2003). doi:10.1016/S0168-9002(03)01368-8

Artoisenet P, Frederix R, Mattelaer O, Rietkerk R. Automatic spin-entangled decays of heavy resonances in Monte Carlo simulations. JHEP. 2013;03:015. doi: 10.1007/JHEP03(2013)015. DOI

Pumplin J, et al. New generation of parton distributions with uncertainties from global QCD analysis. JHEP. 2002;07:012. doi: 10.1088/1126-6708/2002/07/012. DOI

Mangano ML, Moretti M, Piccinini F, Treccani M. Matching matrix elements and shower evolution for top-quark production in hadronic collisions. JHEP. 2007;01:013. doi: 10.1088/1126-6708/2007/01/013. DOI

R. Field, Early LHC underlying event data–findings and surprises, in Hadron Collider Physics. Proceedings, 22nd Conference, HCP 2010, Toronto, Canada, August 23–27, 2010 (2010). arXiv:1010.3558

Lai H-L, et al. New parton distributions for collider physics. Phys. Rev. D. 2010;82:074024. doi: 10.1103/PhysRevD.82.074024. DOI

ATLAS Collaboration, ATLAS tunes of PYTHIA 6 and PYTHIA 8 for MC11. Technical Report ATL-PHYS-PUB-2011-009 (2011)

R. Astalos et al., Proceedings of the sixth international workshop on multiple partonic interactions at the Large Hadron Collider (2015). arXiv:1506.05829

Frederix R, Frixione S. Merging meets matching in MC@NLO. JHEP. 2012;12:061. doi: 10.1007/JHEP12(2012)061. DOI

NNPDF Collaboration, Parton distributions for the LHC run II. JHEP 04, 040 (2015). doi:10.1007/JHEP04(2015)040. arXiv:1410.8849

Bevilacqua G, et al. HELAC-NLO. Comput. Phys. Commun. 2013;184:986. doi: 10.1016/j.cpc.2012.10.033. DOI

Alioli S, Nason P, Oleari C, Re E. A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX. JHEP. 2010;06:043. doi: 10.1007/JHEP06(2010)043. DOI

Nason P. A new method for combining NLO QCD with shower Monte Carlo algorithms. JHEP. 2004;11:040. doi: 10.1088/1126-6708/2004/11/040. DOI

Skands PZ. Tuning Monte Carlo generators: the Perugia tunes. Phys. Rev. D. 2010;82:074018. doi: 10.1103/PhysRevD.82.074018. DOI

Melnikov K, Petriello F. The PubMed DOI

Melnikov K, Petriello F. Electroweak gauge boson production at hadron colliders through DOI

Kidonakis N. Two-loop soft anomalous dimensions for single top quark associated production with W DOI

Campbell JM, Ellis RK, Williams C. Vector boson pair production at the LHC. JHEP. 2011;07:018. doi: 10.1007/JHEP07(2011)018. DOI

Garzelli MV, Kardos A, Papadopoulos C, Trócsányi Z. DOI

S. Heinemeyer et al., Handbook of LHC Higgs cross sections: 3. Higgs properties. CERN Report CERN-2013-004 (2013). doi:10.5170/CERN-2013-004. arXiv:1307.1347

Kilian W, Ohl T, Reuter J. WHIZARD: simulating multi-particle processes at LHC and ILC. Eur. Phys. J. C. 2011;71:1742. doi: 10.1140/epjc/s10052-011-1742-y. DOI

Melnikov K, Schulze M, Scharf A. QCD corrections to top quark pair production in association with a photon at hadron colliders. Phys. Rev. D. 2011;83:074013. doi: 10.1103/PhysRevD.83.074013. DOI

Czakon M, Mitov A. Top++: a program for the calculation of the top-pair cross-section at hadron colliders. Comput. Phys. Commun. 2014;185:2930. doi: 10.1016/j.cpc.2014.06.021. DOI

M. Botje et al., The PDF4LHC Working Group interim recommendations (2011). arXiv:1101.0538

S. Alekhin et al., The PDF4LHC Working Group interim report (2011). arXiv:1101.0536

Martin AD, Stirling WJ, Thorne RS, Watt G. Uncertainties on DOI

Gao J, et al. CT10 next-to-next-to-leading order global analysis of QCD. Phys. Rev. D. 2014;89:033009. doi: 10.1103/PhysRevD.89.033009. DOI

NNPDF Collaboration, Parton distributions with LHC data. Nucl. Phys. B 867, 244 (2013). doi:10.1016/j.nuclphysb.2012.10.003. arXiv:1207.1303

CMS Collaboration, Commissioning of the particle-flow event reconstruction with the first LHC collisions recorded in the CMS detector. CMS Physics Analysis Summary CMS-PAS-PFT-10-001 (2010)

CMS Collaboration, Particle-flow event reconstruction in CMS and performance for jets, taus, and MET. CMS Physics Analysis Summary CMS-PAS-PFT-09-001 (2009)

CMS Collaboration, Description and performance of track and primary-vertex reconstruction with the CMS tracker. JINST 9, P10009 (2014). doi:10.1088/1748-0221/9/10/P10009. arXiv:1405.6569

Cacciari M, Salam GP, Soyez G. The catchment area of jets. JHEP. 2008;04:005. doi: 10.1088/1126-6708/2008/04/005. DOI

CMS Collaboration, Performance of CMS muon reconstruction in pp collision events at

CMS Collaboration, Performance of electron reconstruction and selection with the CMS detector in proton–proton collisions at

Cacciari M, Salam GP, Soyez G. The anti- DOI

Cacciari M, Salam GP, Soyez G. FastJet user manual. Eur. Phys. J. C. 2012;72:1896. doi: 10.1140/epjc/s10052-012-1896-2. DOI

CMS Collaboration, Determination of jet energy calibration and transverse momentum resolution in CMS. JINST 6, P11002 (2011). doi:10.1088/1748-0221/6/11/P11002. arXiv:1107.4277

CMS Collaboration, Identification of b-quark jets with the CMS experiment. JINST 8, P04013 (2013). doi:10.1088/1748-0221/8/04/P04013. arXiv:1211.4462

CMS Collaboration, Missing transverse energy performance of the CMS detector. JINST 6, P09001 (2011). doi:10.1088/1748-0221/6/09/P09001. arXiv:1106.5048

CMS Collaboration, Performance of the CMS missing transverse momentum reconstruction in pp data at

CMS Collaboration, Search for the associated production of the Higgs boson with a top-quark pair. JHEP 09, 087 (2014). doi:10.1007/JHEP09(2014)087. arXiv:1408.1682 [Erratum: doi:10.1007/JHEP10(2014)106]

D0 Collaboration, Measurement of the top quark mass using dilepton events. Phys. Rev. Lett. 80, 2063 (1998). doi:10.1103/PhysRevLett.80.2063. arXiv:hep-ex/9706014

Particle Data Group, K.A. Olive et al., Rev. Part. Phys. 38, 090001 (2014). doi:10.1088/1674-1137/38/9/090001

CMS Collaboration, Measurement of the

H. Voss, A. Höcker, J. Stelzer, F. Tegenfeldt, TMVA, the toolkit for multivariate data analysis with ROOT, in XIth International Workshop on Advanced Computing and Analysis Techniques in Physics Research (ACAT), p. 40 (2007). arXiv:physics/0703039

CMS Collaboration, Measurement of the cross section and angular correlations for associated production of a Z boson with b hadrons in pp collisions at

CMS Collaboration, Measurement of the

CMS Collaboration, CMS luminosity based on pixel cluster counting—Summer 2013 update. CMS Physics Analysis Summary CMS-PAS-LUM-13-001 (2013)

Hoecker A, Kartvelishvili V. SVD approach to data unfolding. Nucl. Instrum. Methods A. 1996;372:469. doi: 10.1016/0168-9002(95)01478-0. DOI

V. Blobel, An unfolding method for high-energy physics experiments (2002). arXiv:hep-ex/0208022

F. James, Statistical Methods in Experimental Physics, 2nd edn. World Scientific, Singapore (2006)

Bevilacqua G, Worek M. On the ratio of DOI

Najít záznam

Citační ukazatele

Nahrávání dat ...

    Možnosti archivace