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

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

2005-06-23

arxiv.org/abs/hep-ph/0506230v2

Phys.Rev.D72:093001,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 3 figures, local report number added

Scientific paper

10.1103/PhysRevD.72.093001

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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