Taking Neutrino Pictures via Electrons
Guey-Lin Lin, Thi Thuy Linh Nguyen, Martin Spinrath, Thi Dieu Hien, Van, Tse-Chun Wang
TL;DR
This paper explores how to reconstruct the angular distribution of extended neutrino sources by analyzing electron interactions in detectors, overcoming measurement blurring through high-statistics data.
Contribution
It introduces a method to reconstruct neutrino source distributions from electron scattering data despite intrinsic measurement blurring.
Findings
High-statistics data can enable reconstruction of neutrino angular distributions.
Electron scattering can be used to infer original neutrino directions.
The approach is demonstrated with solar neutrino scattering data.
Abstract
In this paper we discuss the prospects to take a picture of an extended neutrino source, i.e., resolving its angular neutrino luminosity distribution. This is challenging since neutrino directions cannot be directly measured but only estimated from the directions of charged particles they interact with in the detector material. This leads to an intrinsic blurring effect. We first discuss the problem in general terms and then apply our insights to solar neutrinos scattering elastically with electrons. Despite the aforementioned blurring we show how with high statistics and precision the original neutrino distributions could be reconstructed.
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