QCD Corrections to Scalar Diquark Production at Hadron Colliders

Details QCD Corrections to Scalar Diquark Production at Hadron Colliders QCD Corrections to Scalar Diquark Production at Hadron Colliders

2009-09-15

arxiv.org/abs/0909.2666v2

JHEP 1001:123,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

24 pages, 17 figures

Scientific paper

10.1007/JHEP01(2010)123

We calculate the next-to-leading order QCD corrections to quark-quark annihilation to a scalar resonant state ("diquark") in a color representation of antitriplet or sextet at the Tevatron and LHC energies. At the LHC, we find the enhancement (K-factor) for the antitriplet diquark is typically about 1.31--1.35, and for the sextet diquark is about 1.22--1.32 for initial-state valence quarks. The full transverse-momentum spectrum for the diquarks is also calculated at the LHC by performing the soft gluon resummation to the leading logarithm and all orders in the strong coupling.

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