Search for heavy resonances in the W/Z-tagged dijet mass spectrum in pp collisions at 7 TeV

The CMS collaboration

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

A search has been made for massive resonances decaying into a quark and a vector boson, qW or qZ, or a pair of vector bosons, WW, WZ, or ZZ, where each vector boson decays to hadronic final states. This search is based on a data sample corresponding to an integrated luminosity of 5.0 fb-1 of proton-proton collisions collected in the CMS experiment at the LHC in 2011 at a center-of-mass energy of 7 TeV. For sufficiently heavy resonances the decay products of each vector boson are merged into a single jet, and the event effectively has a dijet topology. The background from QCD dijet events is reduced using recently developed techniques that resolve jet substructure. A 95% CL lower limit is set on the mass of excited quark resonances decaying into qW (qZ) at 2.38 TeV (2.15 TeV) and upper limits are set on the cross section for resonances decaying to qW, qZ, WW, WZ, or ZZ final states.

Original languageEnglish
Pages (from-to)280-301
Number of pages22
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume723
Issue number4-5
DOIs
Publication statusPublished - Jun 25 2013

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mass spectra
bosons
collisions
quarks
protons
decay
substructures
center of mass
topology
quantum chromodynamics
luminosity
cross sections
products
energy

Keywords

  • CMS
  • Dijet
  • Jet substructure
  • Physics
  • Resonances

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Search for heavy resonances in the W/Z-tagged dijet mass spectrum in pp collisions at 7 TeV. / The CMS collaboration.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 723, No. 4-5, 25.06.2013, p. 280-301.

Research output: Contribution to journalArticle

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abstract = "A search has been made for massive resonances decaying into a quark and a vector boson, qW or qZ, or a pair of vector bosons, WW, WZ, or ZZ, where each vector boson decays to hadronic final states. This search is based on a data sample corresponding to an integrated luminosity of 5.0 fb-1 of proton-proton collisions collected in the CMS experiment at the LHC in 2011 at a center-of-mass energy of 7 TeV. For sufficiently heavy resonances the decay products of each vector boson are merged into a single jet, and the event effectively has a dijet topology. The background from QCD dijet events is reduced using recently developed techniques that resolve jet substructure. A 95{\%} CL lower limit is set on the mass of excited quark resonances decaying into qW (qZ) at 2.38 TeV (2.15 TeV) and upper limits are set on the cross section for resonances decaying to qW, qZ, WW, WZ, or ZZ final states.",
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AU - Sirunyan, M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Aguilo, E.

AU - Bergauer, T.

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AU - Pernicka, M.

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AU - Ochesanu, S.

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AU - Radi, A.

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KW - Physics

KW - Resonances

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