# New Perspectives

Jun 16 – 22, 2022
Fermilab
US/Central timezone

## Status of MRE Study for Neutrino-Electron Elastic Scattering in the NOvA Near Detector

Jun 21, 2022, 10:15 AM
15m
One West (Fermilab)

### Speaker

Barnali Brahma (IIT Hyderabad)

### Description

NO$\nu$A is a long-baseline accelerator neutrino experiment at Fermilab that aims at precision neutrino oscillation analyses and cross-section measurements. Large uncertainties on the absolute neutrino flux affect both of these measurements. Measuring neutrino-electron elastic scattering provides an in-situ constraint on the absolute neutrino flux. In this analysis the signal is a single, very forward-going electron shower with $E_{e}{\theta_{e}}^{2}$ peaking around zero. After the electron selection, the primary background for this analysis is the beam $\nu_{e}$ charged current events ($\nu_{e}$ CC). Muon removed electron-added (MRE), events are constructed from $\nu_{\mu}$ CC interactions by removing the primary muon track and simulating an electron in its place. It helps us to understand the consequence of hadronic shower mismodelling on $\nu_{e}$ selection. This talk presents an overview of on-going MRE studies and a plan for how this sample can be used to provide a data-driven constrain on the $\nu_{e}$ CC backgrounds present in the $\nu$-e analysis.

### Primary author

Barnali Brahma (IIT Hyderabad)