# Leonor Guimaraes Goncalves

- Institution: CERN
- Department: Summer Student Lecture Programme General
- Speaker: Leonor Guimaraes Goncalves
- Year: 2025
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3023153)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

Understanding neutrino interactions is key to unlocking the full physics potential of DUNE. In this talk, I present a novel data-driven strategy to estimate the $\nu_e/\nu_\mu$ cross-section ratio without relying on interaction models. By exploiting the unique off-axis capabilities of DUNE-PRISM, we construct optimized linear combinations of $\nu_\mu$ fluxes that closely replicate $\nu_e$ fluxes. This allows us to isolate the cross-section effects directly from event rates. The method combines flux matching, regularized minimization, and energy-weighted importance functions—offering a robust and transparent path toward precision neutrino physics..

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0:10:40 Slide 6

## Lectures

1. [Leonor Guimaraes Goncalves](https://invisiblenetwork.ai/learn/cern/3023153/535904fa5547), 13 min (CERN's player)