Abstract
A measurement of the tt¯ production cross section in pp collisions at s=7 TeV is presented. The results are based on data corresponding to an integrated luminosity of 2.3 fb−1 collected by the CMS detector at the LHC. Selected events are required to have one isolated, high transverse momentum electron or muon, large missing transverse energy, and hadronic jets, at least one of which must be consistent with having originated from a b quark. The measured cross section is 158.1±2.1(stat.)±10.2(syst.)±3.5(lum.) pb, in agreement with standard model predictions.
Original language | English |
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Pages (from-to) | 83-104 |
Number of pages | 22 |
Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
Volume | 720 |
Issue number | 1-3 |
DOIs | |
Publication status | Published - 13 Mar 2013 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2013 CERN
Funding
Individuals have received support from the Marie-Curie programme and the European Research Council (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 lʼIndustrie et dans lʼAgriculture (FRIA-Belgium) ; the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium) ; the Ministry of Education, Youth and Sports (MEYS) of Czech Republic ; the Council of Science and Industrial Research , India; the Compagnia di San Paolo (Torino) ; and the HOMING PLUS programme of Foundation for Polish Science , cofinanced from European Union, Regional Development Fund . 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: BMWF and FWF (Austria); FNRS and FWO (Belgium); CNPq , CAPES , FAPERJ , and FAPESP (Brazil); MEYS (Bulgaria); CERN ; CAS , MoST , and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); MoER , SF0690030s09 and ERDF (Estonia); Academy of Finland , MEC , and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF , DFG , and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Republic of Korea); LAS (Lithuania); CINVESTAV , CONACYT , SEP , and UASLP-FAI (Mexico); MSI (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MON , RosAtom , RAS and RFBR (Russia); MSTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); ThEPCenter , IPST and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (USA).
Funders | Funder number |
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Not added | ST/H00081X/2 |
CPAN | |
MSES | |
MoER | SF0690030s09 |
National Science Foundation | 1151640, 1206044, 0969555, 1205960, 1100862, 1211067 |
U.S. Department of Energy | |
Alfred P. Sloan Foundation | |
Hispanics in Philanthropy | |
California Department of Fish and Game | |
Alexander von Humboldt-Stiftung | |
Western Carolina University | |
Compagnia di San Paolo | |
Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS) | |
California Earthquake Authority | |
Direktion für Entwicklung und Zusammenarbeit | |
Center for African Studies | |
Secretaría de Educación Pública | |
Türkiye Atom Enerjisi Kurumu | |
Louisiana Academy of Sciences | |
Rochester Academy of Science | |
CERN | |
College of Natural Resources and Sciences, Humboldt State University | |
Thailand Center of Excellence in Physics | |
Institute for the Promotion of Teaching Science and Technology | |
Ministerstwo Obrony Narodowej | |
Science and Technology Facilities Council | ST/L00609X/1, ST/J004901/1, ST/K003542/1, ST/K001256/1, ST/K003844/1, ST/J004871/1, GRIDPP, PP/E002803/1, ST/H000925/2, ST/H000925/1, ST/J005479/1, ST/K001531/1, ST/I000305/1, ST/I505572/1, ST/I005912/1, ST/J005665/1, ST/K001604/1, ST/K001639/1, ST/L005603/1, ST/M002020/1, ST/F007094/1, ST/I003622/1 |
European Commission | |
European Research Council | |
Department of Science and Technology, Ministry of Science and Technology, India | |
Council of Scientific and Industrial Research, India | |
Department of Atomic Energy, Government of India | |
Ministry of Science and Innovation, New Zealand | |
Science Foundation Ireland | |
Helmholtz-Gemeinschaft | |
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung | 123501, 146398, 138111 |
Fundação de Amparo à Pesquisa do Estado de São Paulo | |
National Natural Science Foundation of China | |
Research Promotion Foundation | |
Ministerstvo Školství, Mládeže a Tělovýchovy | |
National Science Council | |
Fundacja na rzecz Nauki Polskiej | |
Fundação para a Ciência e a Tecnologia | |
Russian Foundation for Basic Research | |
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior | |
Academy of Finland | |
Bundesministerium für Bildung und Forschung | |
Austrian Science Fund | |
Fonds De La Recherche Scientifique - FNRS | |
Belgian Federal Science Policy Office | |
Fonds Wetenschappelijk Onderzoek | |
Agentschap voor Innovatie door Wetenschap en Technologie | |
Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture | |
Consejo Nacional de Ciencia y Tecnología | |
Ministerio de Educación, Cultura y Deporte | |
Ministry of Education, Youth and Science | |
General Secretariat for Research and Technology | |
Hungarian Scientific Research Fund | |
Conselho Nacional de Desenvolvimento Científico e Tecnológico | |
National Research Foundation of Korea | |
Joint Institute for Nuclear Research | |
Nemzeti Kutatási és Technológiai Hivatal | |
Instituto Nazionale di Fisica Nucleare | |
A.G. Leventis Foundation | |
National Science and Technology Development Agency | Thailand |
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu | |
Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja | |
Ministerstwo Edukacji i Nauki | |
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro | |
Ministry of Science and Technology, Taiwan | |
National Academy of Sciences of Ukraine | |
Universidad Autónoma de San Luis Potosí | |
Institute for Research in Fundamental Sciences | |
Secretaría de Estado de Investigación, Desarrollo e Innovación | |
Bundesministerium für Wissenschaft und Forschung | |
European Regional Development Fund | |
State Atomic Energy Corporation ROSATOM | |
Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional | |
Pakistan Atomic Energy Commission | |
Institut National de Physique Nucléaire et de Physique des Particules |
Keywords
- CMS
- Cross section
- LHC
- Physics
- Top quark