INCLUSIVE 2-JET TRIPLY DIFFERENTIAL CROSS-SECTION

We study the inclusive two jet triply differential cross section d(3) sigma/dE(T)d eta(1)d eta(2) at Fermilab energies. Different eta(1) and eta(2) pseudorapidity regions are directly related to both the parton level matrix elements and the parton densities at leading order. We present the next-to-leading order [O(alpha(s)(3))] corrections and show that the shape of the distribution at fixed transverse energy E(T) is a particularly powerful tool for constraining the parton distributions at small to moderate x values. We investigate the renormalization and/or factorization scale uncertainty present in the normalization and shape of the distribution at next-to-leading order. We discuss specific slices of the distribution, the same-side/opposite-side ratio, and the signed pseudorapidity distribution in detail and compare them with preliminary experimental data.