Published 2012 | Version v1
Journal article

Study of the Dijet Mass Spectrum in pp → W + jets Events at √s=7 TeV

Creators

  • 1. Yerevan Physics Institute, Yerevan (Armenia)
  • 2. DSM/IRFU, CEA/Saclay, Gif-sur-Yvette (France)
  • 3. Institut fur Hochenergiephysik der OeAW, Wien (Austria)
  • 4. Vienna University of Technology, Vienna (Austria)
  • 5. National Centre for Particle and High Energy Physics, Minsk (Belarus)
  • 6. Universiteit Antwerpen, Antwerpen (Belgium)
  • 7. Vrije Universiteit Brussel, Brussel (Belgium)
  • 8. Universite Libre de Bruxelles, Bruxelles (Belgium)
  • 9. Ghent University, Ghent (Belgium)
  • 10. Universite Catholique de Louvain, Louvain-la-Neuve (Belgium)
  • 11. National Institute of Chemical Physics and Biophysics, Tallinn (Estonia)
  • 12. Universite de Mons, Mons (Belgium)
  • 13. Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro (Brazil)
  • 14. Universidade do Estado do Rio de Janeiro, Rio de Janeiro (Brazil)
  • 15. Universidade Federal do ABC, Santo Andre (Brazil)
  • 16. Instituto de Fisica Teorica, Universidade Estadual Paulista, Sao Paulo (Brazil)
  • 17. CERN, European Organization for Nuclear Research, Geneva (Switzerland)
  • 18. Institute for Nuclear Research and Nuclear Energy, Sofia (Bulgaria)
  • 19. University of Sofia, Sofia (Bulgaria)
  • 20. Institute of High Energy Physics, Beijing (China)

Description

We report an investigation of the invariant mass spectrum of the two jets with highest transverse momentum in pp → W + 2-jet and W + 3-jet events to look for resonant enhancement. The data sample corresponds to an integrated luminosity of 5.0 fb-1 collected with the CMS detector at √s=7 TeV. We find no evidence for the anomalous structure reported by the CDF Collaboration, and establish an upper limit of 5.0 pb at 95% confidence level on the production cross section for a generic Gaussian signal with mass near 150 GeV. Additionally, we exclude two theoretical models that predict a CDF-like dijet resonance near 150 GeV. (authors)

Availability note (English)

Available from doi: http://dx.doi.org/10.1103/PhysRevLett.109.251801

Additional details

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
109
Journal Page Range
p. 251801.1-251801.16
ISSN
0031-9007

Optional Information

Notes
35 refs.
Collaborations
CMS Collaboration