Constraints on Non-Standard Neutrino Interactions and Unparticle Physics with Neutrino-Electron Scattering at the Kuo-Sheng Nuclear Power Reactor

Understand

Neutrino-electron scatterings are purely leptonic processes with robust Standard Model (SM) predictions.

• Their measurements can therefore provide constraints to physics beyond SM.
• The $\nuebar$-e data taken at the Kuo-Sheng Reactor Neutrino Laboratory were used to probe two scenarios: Non-Standard Neutrino Interactions (NSI) and Unparticle Physics.
• New constraints were placed to the NSI parameters ($\el$,$\er$) and ($\etl$,$\etr$) for the Non-Universal and Flavor-Changing channels, respectively, as well as to the coupling constants for scalar ($\lambda_0$) and vector ($\lambda_1$) unparticles to the neutrinos and electrons.