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Abstract: We calculate the next-to-leading order QCD corrections to quark-quarkannihilation to a scalar resonant state -diquark- in a color representationof antitriplet or sextet at the Tevatron and LHC energies. At the LHC, we findthe enhancement K-factor for the antitriplet diquark is typically about1.31-1.35, and for the sextet diquark is about 1.22-1.32 for initial-statevalence quarks. The full transverse-momentum spectrum for the diquarks is alsocalculated at the LHC by performing the soft gluon resummation to the leadinglogarithm and all orders in the strong coupling.



Author: Tao Han, Ian Lewis, Thomas McElmurry

Source: https://arxiv.org/







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