| Title: |
Dual-baseline search for active-to-sterile neutrino oscillations in NOvA |
| Authors: |
Jeff Hartnell; Lily Asquith; EF Bannister; TJC Bezerra; Alex Booth; Robert Kralik; Jessica Lock; Wilf Shorrock |
| Publication Year: |
2025 |
| Collection: |
University of Sussex (US): Figshare |
| Subject Terms: |
Engineering; Mathematical sciences; Physical sciences; 01 Mathematical Sciences; 02 Physical Sciences; 09 Engineering; General Physics; 40 Engineering; 49 Mathematical sciences; 51 Physical sciences |
| Description: |
We report a search for neutrino oscillations to sterile neutrinos under a model with three active and one sterile neutrinos (3+1model). This analysis uses the NOvA detectors exposed to the NuMI beam, running in neutrino mode. The data exposure,13.6×1020protons on target, doubles that previously analyzed by NOvA, and the analysis is the first to use𝜈𝜇charged-current interactions in conjunction with neutral-current interactions. Neutrino samples in the near and far detectors are fitted simultaneously, enabling the search to be carried out over aΔ𝑚241range extending 2 (3) orders of magnitude above (below)1 eV2. NOvA finds no evidence for active-to-sterile neutrino oscillations under the3+1model at 90% confidence level. New limits are reported in multiple regions of parameter space, excluding some regions currently allowed by IceCube at 90% confidence level. We additionally set the most stringent limits for anomalous𝜈𝜏appearance forΔ𝑚241≤3 eV2. |
| Document Type: |
article in journal/newspaper |
| Language: |
unknown |
| Relation: |
10779/uos.28532165.v1 |
| Availability: |
https://figshare.com/articles/journal_contribution/Dual-baseline_search_for_active-to-sterile_neutrino_oscillations_in_NOvA/28532165 |
| Rights: |
CC BY 4.0 |
| Accession Number: |
edsbas.FA140E2D |
| Database: |
BASE |