Search for CP -violating neutrino nonstandard interactions with the NOvA experiment
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Authors
Meyer, Holger
Muether, Mathew
Roy, P.
Solomey, Nickolas
Yahaya, Abdul-Wasit
Advisors
Issue Date
2024-11-13
Type
Article
Keywords
Citation
Acero, M. A., Adamson, P., Aliaga, L., Anfimov, N., Antoshkin, A., Arrieta-Diaz, E., . . . (The NOvA Collaboration). (2024). Search for CP -violating neutrino nonstandard interactions with the NOvA experiment Physical Review Letters, 133(20) 201802, doi:10.1103/PhysRevLett.127.201801
Abstract
This Letter reports a search for charge-parity (CP) symmetry violating nonstandard interactions (NSI) of neutrinos with matter using the NOvA Experiment, and examines their effects on the determination of the standard oscillation parameters. Data from νμ(ν¯μ)→νμ(ν¯μ) and νμ(ν¯μ)→νe(ν¯e) oscillation channels are used to measure the effect of the NSI parameters Iµeμ and Iµeτ. With 90% CL the magnitudes of the NSI couplings are constrained to be |Iµeμ| 0.3 and |Iµeτ| 0.4. A degeneracy at |Iµeτ|≈1.8 is reported, and we observe that the presence of NSI limits sensitivity to the standard CP phase δCP. © 2024 authors.
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Publisher
American Physical Society
Journal
Physical Review Letters
Book Title
Series
PubMed ID
ISSN
00319007