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Search for exotic resonances decaying into WZ/ZZ in pp collisions at √s=7 TeV

Chatrchyan, S ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. DOI: 10.1007/JHEP02(2013)036
  3. Publisher: 2013
  4. Abstract:
  5. A search for new exotic particles decaying to the VZ final state is performed, where V is either a W or a Z boson decaying into two overlapping jets and the Z decays into a pair of electrons, muons or neutrinos. The analysis uses a data sample of pp collisions corresponding to an integrated luminosity of 5 fb-1 collected by the CMS experiment at the LHC at √s=7 TeV in 2011. No significant excess is observed in the mass distribution of the VZ candidates compared with the background expectation from standard model processes. Model-dependent upper limits at the 95% confidence level are set on the product of the cross section times the branching fraction of hypothetical particles decaying to the VZ final state as a function of mass. Sequential standard model W′ bosons with masses between 700 and 940 GeV are excluded. In the Randall-Sundrum model for graviton resonances with a coupling parameter of 0.05, masses between 750 and 880 GeV are also excluded. © 2013 CERN for the benefit of the CMS collaboration
  6. Keywords:
  7. Hadron-Hadron Scattering
  8. Source: Journal of High Energy Physics ; Volume 2013, Issue 2 , 2013 ; 11266708 (ISSN)
  9. URL: http://link.springer.com/article/10.1007%2FJHEP02%282013%29036