Constraints on Non-Commutative Physics Scale with Neutrino-Electron Scattering

Details Constraints on Non-Commutative Physics Scale with Neutrino-Electron Scattering Constraints on Non-Commutative Physics Scale with Neutrino-Electron Scattering

2012-01-19

arxiv.org/abs/1201.3996v2

Phys. Rev. D 85, 073011 (2012)

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 2 figures, 2 tables, V2: minor revisions to match published version

Scientific paper

10.1103/PhysRevD.85.073011

Neutrino-electron scatterings ($\nu - e$) are purely leptonic processes with robust Standard Model (SM) predictions. Their measurements can therefore provide constraints to physics beyond SM. Non-commutative (NC) field theories modify space-time commutation relations, and allow neutrino electromagnetic couplings at the tree level. Their contribution to neutrino-electron scattering cross-section was derived. Constraints were placed on the NC scale parameter $\Lambda_{NC}$ from $\nu - e$ experiments with reactor and accelerator neutrinos. The most stringent limit of $\Lambda_{NC} > 3.3 TeV$ at 95% confidence level improves over the direct bounds from collider experiments.

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