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The differential p_T spectrum for vector boson production is computed atnext-to-leading fixed order and including the resummation of thresholdlogarithms at next-to-next-to-leading logarithmic accuracy. A comparison ismade to ATLAS data on direct photon and W production at high transversemomentum p_T, finding excellent agreement. The resummation is achieved byfactorizing contributions associated with different scales using Soft-CollinearEffective Theory. Each part is then calculated perturbatively and theindividual contributions are combined using renormalization group methods. Akey advantage of the effective theory framework is that it indicates a set ofnatural scale choices, in contrast to the fixed-order calculation. Resummationof logarithms of ratios of these scales leads to better agreement with data andreduced theoretical uncertainties.

Precision direct photon and W-boson spectra at high p_T and comparison to LHC data