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Weak Interaction Sum Rules for Polarized top-antitop Production at LHC

M. Beccaria·F. M. Renard·C. Verzegnassi
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Abstract

We consider two polarization asymmetries in the process of top-antitop production at LHC. We show that the theoretical predictions for these two quantities, at the strong and electroweak partonic one-loop level, are free of QCD and QED effects. At this perturbative level we derive two sum rules, that relate measurable quantities of top-antitop production to genuinely weak inputs. This would allow to perform two independent tests of the candidate theoretical model, with a precision that will be fixed by the future experimental accuracies of the different polarization measurements. A tentative quantitative illustration of this statement for a specific MSSM scenario is enclosed, and a generalization to include two other future realistic measurements is also proposed.

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M. Beccaria, F. M. Renard, C. Verzegnassi. 2005-06-24. Weak Interaction Sum Rules for Polarized top-antitop Production at LHC. https://doi.org/10.1103/physrevd.72.093001

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