Small angle Bhabha scattering at LEP1. Wide-narrow angular acceptance
نویسندگان
چکیده
منابع مشابه
Large-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 ...
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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 ...
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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...
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ژورنال
عنوان ژورنال: Journal of Experimental and Theoretical Physics
سال: 1997
ISSN: 1063-7761,1090-6509
DOI: 10.1134/1.558268