Ratios of multijet Cross Sections in p p collisions at radical(s) = 1.8 TeV

Phys Rev Lett. 2001 Mar 5;86(10):1955-60. doi: 10.1103/PhysRevLett.86.1955.

Abstract

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 p&pmacr; collisions at a center-of-mass energy sqrt[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(alpha(3)(s)) QCD calculations in modeling soft-jet emission.