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Title: Weak interaction sum rules for polarized tt production at the CERN LHC

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 minimal supersymmetric standard model (MSSM) scenario is enclosed, and a generalization to include two other future realistic measurements is also proposed.

Authors:
 [1];  [2];  [3];  [4];  [2]
  1. Dipartimento di Fisica, Universita di Lecce, Via Arnesano, 73100 Lecce (Italy)
  2. (Italy)
  3. Laboratoire de Physique Theorique et Astroparticules, UMR 5207, Universite Montpellier II, F-34095 Montpellier Cedex 5 (France)
  4. Dipartimento di Fisica Teorica, Universita di Trieste, Strada Costiera 14, Miramare, Trieste (Italy)
Publication Date:
OSTI Identifier:
20713807
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 72; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevD.72.093001; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ACCURACY; ASYMMETRY; CERN LHC; GLUONS; INCLUSIVE INTERACTIONS; PARTICLE PRODUCTION; POLARIZATION; PROTON-PROTON INTERACTIONS; QUANTUM CHROMODYNAMICS; QUANTUM ELECTRODYNAMICS; STANDARD MODEL; SUM RULES; SUPERSYMMETRY; T QUARKS; WEAK INTERACTIONS

Citation Formats

Beccaria, M., INFN, Sezione di Lecce, Renard, F.M., Verzegnassi, C., and INFN, Sezione di Trieste. Weak interaction sum rules for polarized tt production at the CERN LHC. United States: N. p., 2005. Web. doi:10.1103/PhysRevD.72.093001.
Beccaria, M., INFN, Sezione di Lecce, Renard, F.M., Verzegnassi, C., & INFN, Sezione di Trieste. Weak interaction sum rules for polarized tt production at the CERN LHC. United States. doi:10.1103/PhysRevD.72.093001.
Beccaria, M., INFN, Sezione di Lecce, Renard, F.M., Verzegnassi, C., and INFN, Sezione di Trieste. Tue . "Weak interaction sum rules for polarized tt production at the CERN LHC". United States. doi:10.1103/PhysRevD.72.093001.
@article{osti_20713807,
title = {Weak interaction sum rules for polarized tt production at the CERN LHC},
author = {Beccaria, M. and INFN, Sezione di Lecce and Renard, F.M. and Verzegnassi, C. and INFN, Sezione di Trieste},
abstractNote = {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 minimal supersymmetric standard model (MSSM) scenario is enclosed, and a generalization to include two other future realistic measurements is also proposed.},
doi = {10.1103/PhysRevD.72.093001},
journal = {Physical Review. D, Particles Fields},
number = 9,
volume = 72,
place = {United States},
year = {Tue Nov 01 00:00:00 EST 2005},
month = {Tue Nov 01 00:00:00 EST 2005}
}
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