First measurement of hadronic event shapes in pp collisions at s=7 TeV

CMS Collaboration

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Hadronic event shapes have been measured in proton–proton collisions at s=7 TeV, with a data sample collected with the CMS detector at the LHC. The sample corresponds to an integrated luminosity of 3.2 pb−1. Event-shape distributions, corrected for detector response, are compared with five models of QCD multijet production.

Original languageEnglish
Pages (from-to)48-67
Number of pages20
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number1-2
Publication statusPublished - 2 May 2011
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2011 CERN


We wish to congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staff at CERN and other CMS institutes, and acknowledge support from: FMSR (Austria); FNRS and FWO (Belgium); CNPq , CAPES , FAPERJ , and FAPESP (Brazil); MES (Bulgaria); CERN ; CAS , MoST , and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences and NICPB (Estonia); Academy of Finland , ME , 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 (Korea); LAS (Lithuania); CINVESTAV , CONACYT , SEP , and UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST and MAE (Russia); MSTD (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA). 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 Associazione per lo Sviluppo Scientifico e Tecnologico del Piemonte (Italy); the Belgian Federal Science Policy Office ; the Fonds pour la Formation à la Recherche dans lʼíndustrie et dans lʼÁgriculture (FRIA – Belgium) ; and the Agentschap voor Innovatie door Wetenschap en Technologie (IWT – Belgium) .

FundersFunder number
Academy of Sciences
Associazione per lo Sviluppo Scientifico e Tecnologico del Piemonte
Swiss Funding Agencies
National Science Foundation1314131
U.S. Department of Energy
Alfred P. Sloan Foundation
Hispanics in Philanthropy
Alexander von Humboldt-Stiftung
Western Carolina University
Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)
Secretaría de Educación Pública
Türkiye Atom Enerjisi Kurumu
Louisiana Academy of Sciences
Missouri University of Science and Technology
Science and Technology Facilities CouncilST/F006748/1, ST/I000410/1, ST/I002200/1, ST/I505572/1, ST/I005912/1, ST/G502347/1, GRIDPP, ST/H00081X/2, ST/F007094/1
European Research Council
Department of Science and Technology, Ministry of Science and Technology, India
Department of Atomic Energy, Government of India
Science Foundation Ireland
Deutsche Forschungsgemeinschaft
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung123501, 134939
Fundação de Amparo à Pesquisa do Estado de São Paulo
National Natural Science Foundation of China
Research Promotion Foundation
National Science Council
Fundação para a Ciência e a Tecnologia
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Academy of Finland
Bundesministerium für Bildung und Forschung
Chinese Academy of Sciences
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
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
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
Ministry of Science and Technology, Taiwan
Centre National de la Recherche Scientifique
Ministerio de Ciencia e Innovación
Ministry of Education and Science
Institute for Research in Fundamental Sciences
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
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


    • CMS
    • Event shapes
    • LHC
    • QCD


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