Constraining Non-Standard Interactions of the Neutrino with Borexino

Understand

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.