Limits on Quark Compositeness from High Energy Jets in PbarP Collisions at 1.8 TeV

Details Limits on Quark Compositeness from High Energy Jets in PbarP Collisions at 1.8 TeV Limits on Quark Compositeness from High Energy Jets in PbarP Collisions at 1.8 TeV

1999-12-10

arxiv.org/abs/hep-ex/9912023v3

Phys.Rev.D62:031101,2000

Physics

High Energy Physics

High Energy Physics - Experiment

Submitted to Phys. Rev. D, Rapid Communications. 11 pages, 2 figures

Scientific paper

10.1103/PhysRevD.62.031101

Events in PbarP collisions at sqrt(s)=1.8 TeV with total transverse energy exceeding 500 GeV are used to set limits on quark substructure. The data are consistent with next-to-leading order QCD calculations. We set a lower limit of 2.0 TeV at 95% confidence on the energy scale Lambda_LL for compositeness in quarks, assuming a model with a left-left isoscalar contact interaction term. The limits on Lambda_LL are found to be insensitive to the sign of the interference term in the Lagrangian.

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