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High Energy Physics - Phenomenology

arXiv:hep-ph/0506230 (hep-ph)
[Submitted on 23 Jun 2005 (v1), last revised 24 Jun 2005 (this version, v2)]

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

Authors: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.
Comments: 13 pages, 3 figures, local report number added
Subjects: High Energy Physics - Phenomenology (hep-ph)
Report number: PM/05-20
Cite as: arXiv:hep-ph/0506230
  (or arXiv:hep-ph/0506230v2 for this version)
  https://doi.org/10.48550/arXiv.hep-ph/0506230
Journal reference: Phys.Rev.D72:093001,2005
Related DOI: https://doi.org/10.1103/PhysRevD.72.093001

Submission history

From: Matteo Beccaria [view email]
[v1] Thu, 23 Jun 2005 11:37:11 UTC (28 KB)
[v2] Fri, 24 Jun 2005 10:02:28 UTC (28 KB)
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