Search for new particles decaying into dijets in proton-antiproton collisions at s=1.96TeV

T. Aaltonen et al. (CDF Collaboration)
Phys. Rev. D 79, 112002 – Published 1 June 2009

Abstract

We present a search for new particles which produce narrow two-jet (dijet) resonances using proton-antiproton collision data corresponding to an integrated luminosity of 1.13fb1 collected with the CDF II detector. The measured dijet mass spectrum is found to be consistent with next-to-leading-order perturbative QCD predictions, and no significant evidence of new particles is found. We set upper limits at the 95% confidence level on cross sections times the branching fraction for the production of new particles decaying into dijets with both jets having a rapidity magnitude |y|<1. These limits are used to determine the mass exclusions for the excited quark, axigluon, flavor-universal coloron, E6 diquark, color-octet techni-ρ, W, and Z.

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  • Received 22 December 2008

DOI:https://doi.org/10.1103/PhysRevD.79.112002

©2009 American Physical Society

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Vol. 79, Iss. 11 — 1 June 2009

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