Constraints on a noncommutative physics scale with neutrino-electron scattering


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Bilmis S. , Deniz M., Li H. B. , Li J., Liao H. Y. , Lin S. T. , ...Daha Fazla

PHYSICAL REVIEW D, cilt.85, 2012 (SCI İndekslerine Giren Dergi) identifier identifier

Özet

Neutrino-electron scatterings (nu - e) are 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 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.