Abstract
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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ArXiv ePrint: 0909.2666v1
Address after Oct. 2009: Department of Physics, Brookhaven National Laboratory, Upton, NY 11973, U.S.A. (Thomas McElmurry)
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Han, T., Lewis, I. & McElmurry, T. QCD corrections to scalar diquark production at hadron colliders. J. High Energ. Phys. 2010, 123 (2010). https://doi.org/10.1007/JHEP01(2010)123
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DOI: https://doi.org/10.1007/JHEP01(2010)123