Published March 2016 | Version Published + Submitted
Journal Article Open

Measurement of the tt production cross section in the all-jets final state in pp collisions at √s = 8 TeV

Abstract

The cross section for tt production in the all-jets final state is measured in pp collisions at a centre-of-mass energy of 8 TeV at the LHC with the CMS detector, in data corresponding to an integrated luminosity of 18.4 fb^(−1). The inclusive cross section is found to be 275.6 ± 6.1(stat) ± 37.8(syst) ± 7.2(lumi) pb. The normalized differential cross sections are measured as a function of the top quark transverse momenta, p_T, and compared to predictions from quantum chromodynamics. The results are reported at detector, parton, and particle levels. In all cases, the measured top quark p_T spectra are significantly softer than theoretical predictions.

Additional Information

© 2016 CERN for the benefit of the CMS collaboration. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Funded by SCOAP3. Received: 20 September 2015; Accepted: 18 February 2016; Published online: 8 March 2016. We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centres and personnel of the Worldwide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: BMWFW and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES and CSF (Croatia); RPF (Cyprus); MoER, ERC IUT and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NIH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF (Republic of Korea); LAS (Lithuania); MOE and UM (Malaysia); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Dubna); MON, RosAtom, RAS and RFBR (Russia); MESTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter, IPST, STAR and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU and SFFR (Ukraine); STFC (UK); DOE and NSF (USA). Individuals have received support from the Marie-Curie programme and the European Research Council and EPLANET (European Union); the Leventis Foundation; the A. P. Sloan Foundation; the Alexander von Humboldt Foundation; the Belgian Federal Science Policy Office; the Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); the Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; the Council of Science and Industrial Research, India; the HOMING PLUS programme of the Foundation for Polish Science, cofinanced from European Union, Regional Development Fund; the OPUS programme of the National Science Center (Poland); the Compagnia di San Paolo (Torino); the Consorzio per la Fisica (Trieste); MIUR project 20108T4XTM (Italy); the Thalis and Aristeia programmes cofinanced by EU-ESF and the Greek NSRF; the National Priorities Research Program by Qatar National Research Fund; the Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University (Thailand); and the Welch Foundation, contract C-1845.

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Identifiers

Eprint ID
67931
Resolver ID
CaltechAUTHORS:20160615-073018533

Related works

Funding

Bundesministerium für Wissenschaft, Forschung und Wirtschaft (BMWFW)
FWF Der Wissenschaftsfonds
Fonds de la Recherche Scientifique (FNRS)
Fonds Wetenschappelijk Onderzoek (FWO)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)
Fundação de Amparo à Pesquisa do Estado de Sao Paulo (FAPESP)
Bulgarian Ministry of Education and Science
European Organization for Nuclear Research (CERN)
Chinese Academy of Sciences (CAS)
Ministry of Science and Technology (China)
National Natural Science Foundation of China
Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)
Croatian Ministry of Science, Education and Sport
Croatian Science Foundation
Research Promotion Foundation, Cyprus
Ministry of Education and Research (Estonia)
Estonian Research Council
European Regional Development Fund, Estonia
Academy of Finland
Ministry of Education and Culture (Finland)
Helsinki Institute of Physics
Commissariat à l'Énergie Atomique et aux Énergies Alternatives (CEA)
Centre National de la Recherche Scientifique (CNRS)
Institut National de Physique Nucléaire et de Physique des Particules (IN2P3)
Bundesministerium für Bildung und Forschung (BMBF)
Deutsche Forschungsgemeinschaft (DFG)
Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF)
General Secretariat for Research and Technology (GSRT)
Hungarian Scientific Research Fund (OTKA)
National Innovation Office (Hungary)
Department of Atomic Energy (India)
Department of Science and Technology (India)
Institute for Studies in Theoretical Physics and Mathematics (Iran)
Science Foundation, Ireland
Istituto Nazionale di Fisica Nucleare (INFN)
Ministry of Science, ICT and Future Planning (Korea)
National Research Foundation of Korea
Lithuanian Academy of Sciences
Ministry of Education (Malaysia)
University of Malaya
CINVESTAV (Mexico)
CONACyT (Mexico)
SEP (Mexico)
UASLP-FAI (Mexico)
Ministry of Business, Innovation and Employment, New Zealand
Pakistan Atomic Energy Commission
Ministry of Science and Higher Education (Poland)
Fundação para a Ciência e a Tecnologia (FCT)
Joint Institute for Nuclear Research (JINR)
Ministry of Education and Science of the Russian Federation
RosAtom (Russia)
Russian Foundation for Basic Research
Ministry of Education, Science and Technological Development (Serbia)
State Secretariat for Research, Development and Innovation (SEIDI)
Centro Nacional de Física de Partículas, Astropartículas y Nuclear (CPAN)
Swiss Funding Agencies
Ministry of Science and Technology (Taipei)
Thailand Center of Excellence in Physics
Institute for the Promotion of Teaching Science and Technology of Thailand
Special Task Force for Activating Research (Thailand)
National Science and Technology Development Agency (Thailand)
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu (TÜBİTAK)
Türkiye Atom Enerjisi Kurumu (TAEK)
National Academy of Sciences of Ukraine
State Fund for Fundamental Researches (Ukraine)
Science and Technology Facilities Council (STFC)
Department of Energy (DOE)
NSF
Marie Curie Fellowship
European Research Council (ERC)
EPLANET
Leventis Foundation
Alfred P. Sloan Foundation
Alexander von Humboldt Foundation
Belgian Federal Science Policy Office (BELSPO)
Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium)
Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium)
Ministry of Education, Youth and Sports (MEYS) of the Czech Republic
Council of Science and Industrial Research, India
Foundation for Polish Science HOMING PLUS programme
European Union Regional Development Fund
National Science Center (Poland) OPUS programme
Compagnia di San Paolo (Torino)
Consorzio per la Fisica (Trieste)
Ministero dell'Istruzione, dell'Università della Ricerca (MIUR)
20108T4XTM
Thalis programme
Aristeia programme
European Social Fund
Greek National Strategic Reference Framework (NSRF)
Qatar National Research Fund National Priorities Research Program
Rachadapisek Sompot Fund for Postdoctoral Fellowship
Chulalongkorn University (Thailand)
Welch Foundation
C-1845
SCOAP3

Dates

Created
2016-06-15
Created from EPrint's datestamp field
Updated
2021-11-11
Created from EPrint's last_modified field

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CMS@Caltech