Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-08-22
Phys.Lett. B390 (1997) 298-308
Physics
High Energy Physics
High Energy Physics - Phenomenology
LaTeX, 14 pages, 3 Postscript figures, References in a .bbl file, Submitted to Physics Letters
Scientific paper
10.1016/S0370-2693(96)01382-2
We present O(alpha) YFS exponentiated results for wide angle Bhabha scattering at LEP/SLC energies using a new Monte Carlo event generator BHWIDE 1.xx. Our calculations include two options for the pure weak corrections, as presented in Beenakker et al. and in Bohm et al. From comparison with the results of Beenakker et al., Montagna et al. and Cacciari et al., we conclude that the total precision of our BHWIDE results is 0.3% (0.5%) in the LEP1/SLC regime within +-100 MeV (+2.75/-2.5 GeV) of the Z peak. For LEP2, the corresponding precision is currently estimated at 1.5%; the latter could be improved if the data in LEP2 so require. Both precision tags represent clear improvements over what is currently available in the literature.
Jadach Stanislaw
Placzek Wieslaw
Ward B. F. L.
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