# EPS-HEP2021 conference

26-30 July 2021
Zoom
Europe/Berlin timezone

## Nuclear Effects on Oscillation Parameters using Calorimetric method of Neutrino Energy Reconstruction in NOvA

Not scheduled
20m
Zoom

#### Zoom

Poster Neutrino Physics

### Speaker

Ms PARAMITA DEKA (GAUHATI UNIVERSITY)

### Description

In current and future long baseline experiments on neutrino oscillation, nuclear effects in neutrino interactions are one of the principal sources of systematic uncertainties. Our present understanding of these effects is still insufficient. Another source of uncertainty is the energy dependence of neutrino oscillation probability which is a nontrivial function of the true incoming neutrino energy. This energy is reconstructed using different methods, which in turn is used in the analysis leading to the extraction of various neutrino oscillation parameters. The extraction of still unknown parameters like the leptonic CP violation phase demands the precision level in these measurements to be very high. The NUMI Off-Axis $\nu_{e}$ Appearance (NOvA), a long baseline neutrino oscillation experiment, is designed to measure $\nu_{e} (\bar\nu_{e})$ appearance probability and $\nu_{\mu}(\bar\nu_{\mu})$ disappearance probability at Fermilab's NUMI (Neutrinos at the Main Injector) beam. The NO$\nu$A consists of two functionally equivalent detectors - the near detector (ND) is located at Fermilab, 1 km from the NUMI beam and the far detector (FD) at a distance of 810 $km$ is sited 14 mrad off-axis to produce a narrow-band beam around the oscillation maximum region ($\sim2 GeV$). In this work, we use the calorimetric method of energy reconstruction of the incoming neutrino energy, both at the ND and FD, and study the role of multinucleon (MN) effects on the sensitivity measurement of various neutrino oscillation parameters in the disappearance channel.

Collaboration / Activity NEUTRINO PHYSICS deka.paramita@gmail.com PARAMITA DEKA

### Primary authors

Ms PARAMITA DEKA (GAUHATI UNIVERSITY) Mr JAYDIP SINGH (LUCKNOW UNIVERSITY) Prof. KALPANA BORA (GAUHATI UNIVERSITY)