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NUCLEAR PHYSICS B
Volume 666, Issue 1-2, Pages 31-55Publisher
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DOI: 10.1016/S0550-3213(03)00455-3
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In order to measure spin-dependent parton distributions in production of W+/- bosons using the non-hermetic detectors of the Relativistic Heavy Ion Collider, an accurate model for distributions of charged leptons from the W-boson decay is needed. We discuss the predictions for production and decay of the W bosons based on a calculation for resummation of large logarithmic contributions originating from multiple soft gluon radiation. We compare the predictions for the spin-dependent resummed cross sections with the corresponding next-to-leading order results. We show that the lepton-level asymmetries can be reliably predicted by the resummation calculation and directly compared to the experimental data. A program for the numerical analysis of such cross sections in gamma*-, W+/-, and Z(0)-boson production is also presented. (C) 2003 Elsevier B.V. All rights reserved.
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