Analysis of NOvA high energy simulated events

This repository contains the numerical data corresponding to the results presented in the paper entitled as "Probing new physics scenarios using high energy events at the NOvA far detector". arXiv:2506.04984

In this study, we investigate the impact of the high energy (HE) neutrino events on the sensitivity of the NuMI Off-axis 𝜈𝑒 Appearance (NOvA) experiment to constrain the off-diagonal non-standard interaction (NSI) parameters (𝜖_𝑒𝜇 and 𝜖_𝑒𝜏) and environmental decoherence parameter Γ. In this context, we analyze the HE simulated events (1 < 𝐸_𝜈 < 20 GeV) observed at the NOvA far detector assuming the presence of NSI and decoherence, one at a time. We examine the degeneracy observed in the 𝜖_𝑒𝜏 including events from 1 < 𝐸_𝜈 < 5 GeV and show that it gets removed once we include HE events (signal + background) from 1 < 𝐸_𝜈 < 20 GeV. In addition, we examine the role of signal versus beam background events in removing this degeneracy. Further, we comparatively investigate the uncertainty in the determination of 𝜃_23 parameter in the presence of decoherence using NOvA analysis window 1 < 𝐸_𝜈 < 5 GeV and 1 < 𝐸_𝜈 < 20 GeV.

The numerical data are provided in folders used to obtain results in our paper. Additional details can be found in the Readme file within each folder.

If these results are useful in your study, please cite the following paper: Chinmay Bera, K. N. Deepthi, Probing new physics scenarios using high energy events at the NOvA far detector. For citation please use the LaTeX or BibTeX entries provided by INSPIRE link here, then click on cite.

Contact authors

chinmay20pphy014@mahindrauniversity.edu.in , nagadeepthi.kuchibhatla@mahindrauniversity.edu.in