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Scalar Nonstandard Interactions in Neutrino Oscillation. | LitMetric

Scalar Nonstandard Interactions in Neutrino Oscillation.

Phys Rev Lett

Theoretical Physics Department, Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA.

Published: May 2019

AI Article Synopsis

Article Abstract

The scalar nonstandard interactions (NSI) can also introduce matter effect for neutrino oscillation in a medium. Especially the recent Borexino data prefer nonzero scalar NSI, η_{ee}=-0.16. In contrast to the conventional vector NSI, the scalar type contributes as a correction to the neutrino mass matrix rather than the matter potential. Consequently, the scalar matter effect is energy independent while the vector one scales linearly with neutrino energy. This leads to significantly different phenomenological consequences in reactor, solar, atmospheric, and accelerator neutrino oscillations. A synergy of different types of experiments, especially those with matter density variation, is necessary to identify the scalar NSI and guarantee the measurement of CP violation at accelerator experiments.

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http://dx.doi.org/10.1103/PhysRevLett.122.211801DOI Listing

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