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arXiv · hep-ex/9912023

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

D0 collaboration·B. Abbott
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Abstract

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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D0 collaboration, B. Abbott. 2000-05-30. Limits on Quark Compositeness from High Energy Jets in PbarP Collisions at 1.8 TeV. https://doi.org/10.1103/physrevd.62.031101

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