-Violating Neutrino Nonstandard Interactions in Long-Baseline-Accelerator Data
Journal Article
·
· Physical Review Letters
Neutrino oscillations in matter provide a unique probe of new physics. Leveraging the advent of neutrino appearance data from NOvA and T2K in recent years, we investigate the presence of CP-violating neutrino non-standard interactions in the oscillation data. We first show how to very simply approximate the expected NSI parameters to resolve differences between two long-baseline appearance experiments analytically. Then, by combining recent NOvA and T2K data, we find a tantalizing hint of CP-violating NSI preferring a new complex phase that is close to maximal: φeµ or φeτ ≈ 3π/2 with |ϵeµ| or |ϵeτ| ~ 0.2. We then compare the results from long-baseline data to constraints from IceCube and COHERENT.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Grant/Contract Number:
- SC0012704; SC0014664
- OSTI ID:
- 1783392
- Alternate ID(s):
- OSTI ID: 1785105
- Report Number(s):
- BNL-221544-2021-JAAM; PRLTAO; 051801
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Vol. 126 Journal Issue: 5; ISSN 0031-9007
- Publisher:
- American Physical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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