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We have compared the virtual corrections to single hard bremsstrahlung ascalculated by S. Jadach, M. Melles, B.F.L. Ward and S.A. Yost to several otherexpressions. The most recent of these comparisons is to the leptonic tensorcalculated by J.H. Kuhn and G. Rodrigo for radiative return. Agreement is foundto within a part in 10^5 or better, as a fraction of the Born cross section,for most of the range of photon energies. The massless limits have been shownto agree analytically to NLL order.Comment: 7 pages, 2 figures. Presented by S.A. Yost at ICHEP 2004,  International Conference on High Energy Physics, Beijing, August 16-22, 200

high energy physics

THE VIRTUAL CORRECTION TO BREMSSTRAHLUNG IN RESULTS HIGH-ENERGY e+e- ANNIHILATION: COMPARISON OF EXACT RESULTS