Non-standard interaction in neutrino oscillations and recent Daya Bay, T2K experiments

Abstract

We study the possible constraints on non-standard interaction(NSIs) in a model independent way by considering the recent results from T2K and Daya Bay neutrino oscillations experiments. Using perturbation method we present generic formulas (suitable for T2K baseline and for large ${\theta }_{13}$ as evident from Daya Bay) for the probability of oscillation for ${\nu }_{\mu }\to {\nu }_e$, taking into account NSIs at source (${\epsilon }^s$), detector (${\epsilon }^d$) and during propagation (${\epsilon }^m$) of neutrinos through matter. Two separate cases of perturbation with small (slightly large) NSI (${\epsilon }_{\alpha \beta }^m\sim 0.03(0.18)$) are discussed in detail. Using various possible presently allowed NSI values we reanalyze numerically the ${\theta }_{13}-\delta$ allowed region given by recent T2K experimental data. We obtain model independent constraints on NSIs in the $\delta -{\epsilon }_{\alpha \beta }^m$ plane using the ${\theta }_{13}$ value as measured by Daya Bay, where $\delta$ is the CP violating phase. Depending on $\delta$ values significant constraints on ${\epsilon }_{e\tau }$ and ${\epsilon }_{\tau \tau }$, in particular, are possible for both hierarchies of neutrino masses. Corresponding to T2K's 66% confidence level result, the constraints on ${\epsilon }_{\tau \tau }$ is shown to be independent of any $\delta$ value.

13 pages, RevTex4, 6 figures (12 eps files) Significant changes after incorporating Daya Bay result

References in corpus (24)

• Observation of electron-antineutrino disappearance at Daya Bay
• Observation of Reactor Electron Antineutrino Disappearance in the RENO Experiment
• Indication of Electron Neutrino Appearance from an Accelerator-produced Off-axis Muon Neutrino Beam
• Unitarity of the Leptonic Mixing Matrix
• General bounds on non-standard neutrino interactions
• CP-violation from non-unitary leptonic mixing
• Non-standard neutrino interactions in reactor and superbeam experiments
• Coherent Development of Neutrino Flavor in the Supernova Environment
• Atmospheric neutrinos as probes of neutrino-matter interactions
• Testing non-unitarity of neutrino mixing matrices at neutrino factories
• Neutrino factory optimization for non-standard interactions
• Probing non-standard neutrino interactions with supernova neutrinos
• Effects of non-standard neutrino-electron interactions on relic neutrino decoupling
• Discovery reach for non-standard interactions in a neutrino factory
• Perturbation Theory of Neutrino Oscillation with Nonstandard Neutrino Interactions
• Implications of Leptonic Unitarity Violation at Neutrino Telescopes
• Two modes of searching for new neutrino interactions at MINOS
• Effects of non-standard interactions in the MINOS experiment
• Non-Standard Interaction Effects at Reactor Neutrino Experiments
• CP violation in neutrino oscillations and new physics
• Non-unitary deviation from the tri-bimaximal lepton mixing and its implications on neutrino oscillations
• Exact and Approximate Formulas for Neutrino Mixing and Oscillations with Non-Standard Interactions
• Hint of non-standard dynamics in solar neutrino conversion
• Can R-parity violating supersymmetry be seen in long baseline beta-beam experiments?

Cited by in corpus (19)

• Status of non-standard neutrino interactions
• Non standard neutrino interactions
• Degeneracies in long-baseline neutrino experiments from nonstandard interactions
• Probing CP violation signal at DUNE in presence of non-standard neutrino interactions
• Sensitivity of the T2HKK experiment to the non-standard interaction
• Non-Standard Neutrino Interactions in the mu-tau sector
• Nonstandard interaction effects on neutrino parameters at medium-baseline reactor antineutrino experiments
• Constraints for non-standard interaction epsilon_{e tau}V_e from nu_e appearance in MINOS and T2K
• The Discovery reach of $CP$ violation in neutrino oscillation with non-standard interaction effects
• Effect of systematics in the T2HK, T2HKK, and DUNE experiments
• Non-standard interactions in SMEFT confronted with terrestrial neutrino experiments
• Shifts of neutrino oscillation parameters in reactor antineutrino experiments with non-standard interactions
• Sensitivities of future reactor and long-baseline neutrino experiments to NSI
• Enhancing Sensitivity to Non-Standard Neutrino Interactions at INO combining muon and hadron information
• Probing Source and Detector NSI parameters at the DUNE Near Detector
• Tau neutrino as a probe of nonstandard interaction
• Sensitivities of future solar neutrino observatories to NSI
• Non-standard interactions and neutrinos from dark matter annihilation in the Sun
• Vector leptoquark $U_3$ and CP violation at T2K, NOvA experiments