Ref HAL: in2p3-00024402_v1
Ref Arxiv: hep-ph/0506230
DOI: 10.1103/PhysRevD.72.093001
Ref. & Cit.: NASA ADS
Exporter : BibTex | endNote
3 citations
Résumé:

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.

Commentaires: 13 pages, 3 figures, local report number added