15,457 research outputs found

    SABSPV - A Monte Carlo Integrator for Small-Angle Bhabha Scattering

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    SABSPV is a code designed to perform a theoretical evaluation of small-angle Bhabha scattering cross sections by suitably matching fixed-order perturbative calculations and structure-function techniques. The implementation of realistic experimental triggering conditions is achieved by using Monte Carlo integration.Comment: 12 pages, LaTeX, no figures, no macro

    On the QED Radiator at Order α3\alpha^3

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    The O(α3){\cal O} (\alpha^3) leading logarithmic contribution to the QED radiator in the additive form is considered. The effect of the correction on two-fermion physics at LEP1 and LEP2 is evaluated and critically compared with the one of next-to-leading O(α2){\cal O} (\alpha^2) corrections. A critical comparison with existing estimates for the LEP1 energy range is also performed. The O(α3){\cal O} (\alpha^3) leading logarithmic corrections turn out to be relevant in view of the experimental precision already reached at LEP1 and foreseen at LEP2.Comment: 10 pages, LaTeX, 3 .eps figures; added references, Comments and a comparison, basic results unchanged; final version to appear in Phys. Lett.
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