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 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 . These limits are used to determine the mass exclusions for the excited quark, axigluon, flavor-universal coloron, diquark, color-octet techni-, , and .
- Received 22 December 2008
DOI:https://doi.org/10.1103/PhysRevD.79.112002
©2009 American Physical Society