Search for supersymmetry in pp collisions at 7 TeV in events with jets and missing transverse energy

CMS Collaboration

Research output: Contribution to journalArticlepeer-review

200 Citations (Scopus)

Abstract

A search for supersymmetry with R-parity conservation in proton–proton collisions at a centre-of-mass energy of 7 TeV is presented. The data correspond to an integrated luminosity of 35 pb −1 collected by the CMS experiment at the LHC. The search is performed in events with jets and significant missing transverse energy, characteristic of the decays of heavy, pair-produced squarks and gluinos. The primary background, from standard model multijet production, is reduced by several orders of magnitude to a negligible level by the application of a set of robust kinematic requirements. With this selection, the data are consistent with the standard model backgrounds, namely tt¯, W + jet and Z + jet production, which are estimated from data control samples. Limits are set on the parameters of the constrained minimal supersymmetric extension of the standard model. These limits extend those set previously by experiments at the Tevatron and LEP colliders.

Original languageEnglish
Pages (from-to)196-218
Number of pages23
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume698
Issue number3
DOIs
Publication statusPublished - 11 Apr 2011
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2011 CMS Collaboration

Funding

We thank L. Dixon and the members of the Blackhat Collaboration for discussions concerning vector-boson + jets production at the LHC. 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).

FundersFunder number
Not addedST/H00081X/2
CPAN
FMSR
MSES
NICPB
SCSR
National Science Foundation0802184
U.S. Department of Energy
Hispanics in Philanthropy
Western Carolina University
Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)
Eesti Teaduste Akadeemia
Direktion für Entwicklung und Zusammenarbeit
Secretaría de Educación Pública
Türkiye Atom Enerjisi Kurumu
Louisiana Academy of Sciences
Missouri University of Science and Technology
CERN
Ministerio del Ambiente, Agua y Transición Ecológica
School of Mechanical Engineering, Purdue University
Science and Technology Facilities CouncilPP/E002722/1, ST/G502412/1, ST/F006748/1, ST/I000410/1, ST/I002200/1, ST/I505572/1, ST/I005912/1, ST/G502347/1, GRIDPP, ST/F007094/1, ST/I002839/1
Department of Science and Technology, Ministry of Science and Technology, India
Department of Atomic Energy, Government of India
Science Foundation Ireland
Helmholtz-Gemeinschaft
Deutsche Forschungsgemeinschaft
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung134939
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
Fonds Wetenschappelijk Onderzoek
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
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu
Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja
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
Universidad Autónoma de San Luis Potosí
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

    Keywords

    • CMS
    • Physics
    • Supersymmetry

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