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

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

2008-12-21

arxiv.org/abs/0812.4036v1

Phys.Rev.D79:112002,2009

Physics

High Energy Physics

High Energy Physics - Experiment

10 pages, 4 figures

Scientific paper

10.1103/PhysRevD.79.112002

We present a search for new particles whose decays produce two jets (dijets) using proton-antiproton collision data corresponding to an integrated luminosity of 1.13 fb-1 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 technirho, W', and Z'.

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