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Constraints on a noncommutative physics scale with neutrino-electron scattering.

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    • Abstract:
      Neutrino-electron scatterings (v -- e) axe. purely leptonic processes with robust standard model predictions. Their measurements can therefore provide constraints to physics beyond the standard model. Noncommutative (NC) field theories modify space-time commutation relations, and allow neutrino electromagnetic couplings at the tree level. Their contribution to the neutrino-electron scattering cross section was derived. Constraints were placed on the NC scale parameter &Lgr;NC from v -- e experiments with reactor and accelerator neutrinos. The most stringent limit of &Lgr;NC > 3.3 TeV at 95% confidence level improves over the direct bounds from collider experiments. [ABSTRACT FROM AUTHOR]
    • Abstract:
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