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Remarks on optimized predictions for the Drell-Yan process |
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| Authors: | P Aurenche R Baier M Fontannaz |
| Institution: | 1. Fermi National Accelerator Laboratory, P.O. Box 500, 60510, Batavia, IL, USA 3. Fakult?t für Physik, Universit?t Bielefeld, D-4800, Bielefeld 1, Federal Republic of Germany 4. Laboratoire de Physique Théorique et Hautes Energies, Université de Paris XI, Batiment 211, F-91405, Orsay Cedex, France |
| Abstract: | We discuss the optimization of the Drell-Yan pair production cross section calculated atO(α s ) and compare it with theO(α s 2 ) results of van Neerven et al. It is shown that the optimized predictions do agree analytically with the latter calculation near the phase space boundary. They also provide a good numerical approximation wherever the stability equations have a solution. |
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