Research Papers in Physics and Astronomy


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Published by American Physical Society. Phys. Rev. Lett. VOLUME 86, NUMBER 10 (2001). Copyright © 2001 American Physical Society. Used by permission.


We report on a study of the ratio of inclusive three-jet to inclusive two-jet production cross sections as a function of total transverse energy in pp̅ collisions at a center-of-mass energy√s = 1.8 TeV, using data collected with the D0 detector during the 1992–1993 run of the Fermilab Tevatron Collider. The measurements are used to deduce preferred renormalization scales in perturbative O(αs3) QCD calculations in modeling soft-jet emission.

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