Measurement of dijet angular distributions by the collider detector at fermilab
Journal
Physical Review Letters
Journal Volume
77
Journal Issue
27
Pages
5336-5341
Date Issued
1996
Author(s)
Abe, F. et al. (CDF Collaboration)
Abstract
We have used 106pb-1 of data collected in pp collisions at √s = 1.8 TeV by the Collider Detector at Fermilab to measure jet angular distributions in events with two jets in the final state. The angular distributions agree with next to leading order predictions of QCD in all dijet invariant mass regions. The data exclude at 95% CL a model of quark substructure in which only up and down quarks are composite and the contact interaction scale is ⩘+ud≤1.6 TeV or ⩘-ud≤1.4 TeV. For a model in which all quarks are composite the excluded regions are ⩘+≤1.8 TeV and ⩘-≤1.6 TeV. © 1996 The American Physical Society.
Type
journal article