Constraining Non-Standard Interactions of the Neutrino with Borexino

Abstract

We use the Borexino 153.6 ton.year data to place constraints on non-standard neutrino-electron interactions, taking into account the uncertainty in the 7Be solar neutrino flux, and backgrounds due to 85Kr and 210Bi beta-decay. We find that the bounds are comparable to existing bounds from all other experiments. Further improvement can be expected in Phase II of Borexino due to the reduction in the 85Kr background.

21 pages, 16 pdf figures, 2 tables. Analysis updated including the uncertainty in sin^2θ_{23}. Accepted in JHEP

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• MeV scale leptonic force for cosmic neutrino spectrum and muon anomalous magnetic moment
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• Non-standard interactions with high-energy atmospheric neutrinos at IceCube
• Constraining New Physics with Borexino Phase-II spectral data
• Exploring the effects of Scalar Non Standard Interactions on the CP violation sensitivity at DUNE
• A Direct Detection View of the Neutrino NSI Landscape
• Constraints on Flavor-Diagonal Non-Standard Neutrino Interactions from Borexino Phase-II
• A neutrino floor for the Migdal effect
• ${\sin }^2(\theta )w$ estimate and bounds on nonstandard interactions at source and detector in the solar neutrino low-energy regime
• Imprints of scalar NSI on the CP-violation sensitivity using synergy among DUNE, T2HK and T2HKK
• Enhancing Sensitivity to Non-Standard Neutrino Interactions at INO combining muon and hadron information
• Tau neutrino as a probe of nonstandard interaction
• Probing Source and Detector NSI parameters at the DUNE Near Detector
• Impact of scalar NSI on the neutrino mass ordering sensitivity at DUNE, HK and KNO
• Kinematical distributions of coherent neutrino trident production in gauged $L_{\mu }-L_{\tau }$ model
• Big Bang Nucleosynthesis as a probe of non-standard neutrino interactions and non-unitary three-neutrino mixing
• The Sensitivity of DUNE in Presence of Off-Diagonal Scalar NSI Parameters
• ${\delta }_{CP}$-free constraints on NSI parameters ${\epsilon }_{e\mu }$ and ${\epsilon }_{e\tau }$ using high-purity ${\nu }_{\mu }$ CC events at IceCube DeepCore