منابع مشابه
SABSPV − A Monte Carlo integrator for Small-Angle Bhabha Scattering
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. Programming language used: FORTRAN 77 Memory required to execute with typical da...
متن کاملLight Pair Correction to Bhabha Scattering at Small Angle
This work deals with the computation of electron pair correction to small angle Bhabha scattering, in order to contribute to the improvement of luminometry precision at lep/slc below 0.1% theoretical accuracy. The exact qed four-fermion matrix element for e+e− → e+e−e+e−, including all diagrams and mass terms, is computed and different Feynman graph topologies are studied to quantify the error ...
متن کاملLarge-Angle Bhabha Scattering at LEP1
A critical assessment is given of the theoretical uncertainty in the predicted cross-sections for large-angle Bhabha scattering at LEP1, with or without t-channel subtraction. To this end a detailed comparison is presented of the results obtained with the programs ALIBABA and TOPAZ0. Differences in the implementation of the radiative corrections and the effect of missing higher-order terms are ...
متن کاملOn Large-Angle Bhabha Scattering at LEP
The theoretical accuracy of the program TOPAZ0 in the large-angle Bhabha channel is estimated. The physical error associated with the full Bhabha cross section and its forward and backward components separately is given for some event selections and several energy points of interest for LEP1 physics, both for the s and non-s contributions to the cross section. E-mail: [email protected] nicros...
متن کاملLight-Pair Corrections to Small-Angle Bhabha Scattering in a Realistic Set-up at LEP
Light-pair corrections to small-angle Bhabha scattering have been computed in a realistic set-up for luminosity measurements at LEP. The effect of acollinearity and acoplanarity rejection criteria has been carefully analysed for typical calorimetric event selections. The magnitude of the correction, depending on the details of the considered set-up, is comparable with the present experimental e...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 1996
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(96)90020-1