Search for Pair Production of Strongly Interacting Particles Decaying to Pairs of Jets in pp¯ Collisions at s=1.96 TeV
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We present a search for the pair production of a narrow nonstandard-model strongly interacting particle that decays to a pair of quarks or gluons, leading to a final state with four hadronic jets. We consider both nonresonant production via an intermediate gluon as well as resonant production via a distinct nonstandard-model intermediate strongly interacting particle. We use data collected by the CDF experiment in proton-antiproton collisions at √[s]=1.96 TeV corresponding to an integrated luminosity of 6.6 fb(-1). We find the data to be consistent with nonresonant production. We report limits on σ(pp[over ¯]→jjjj) as a function of the masses of the hypothetical intermediate particles. Upper limits on the production cross sections for nonstandard-model particles in several resonant and nonresonant processes are also derived.
author list (cited authors)
Aaltonen, T., Albin, E., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., ... Zucchelli, S.