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Author  |
Cherchiglia, A.; Pasquini, P.; Peres, O.L.G.; Rodrigues, F.F.; Rossi, R.R.; Souza, E.S. |
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Title |
Alleviating the present tension between T2K and NOνA with nonstandard neutrino interactions |
Type |
Journal Article |
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Year |
2025 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
112 |
Issue |
9 |
Pages |
093004 - 8pp |
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Abstract |
Since neutrino oscillation was observed, several experiments have been built to measure its parameters. NuMI Off-axis ve Appearance (NOvA) and Tokai-to-Kamioka (T2K) are two long-baseline experiments dedicated to measuring mainly the mixing angle 823, the charge-parity (CP) conjugation phase MCP, and the mass ordering. However, there is a tension in current data. The T2K allowed region is in conflict with the region allowed by NOvA. We propose a nonstandard charged current interaction (CC-NSI) in neutrino production to relieve this tension. The CC-NSI is computed through quantum field theory formalism, where we derive perturbative analytical formulae considering CC-NSI in the pion decay. Within this new approach, we can alleviate NOvA and T2K tension for CC-NSI complex parameters of order 10-3. We show the new phase has a degeneracy to the Dirac CP phase of the form MCP + % = 1.52c, being a possible source of violation of charge-parity symmetry. |
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Address |
[Cherchiglia, Adriano; Pasquini, Pedro; Peres, O. L. G.; Rodrigues, F. F.; Rossi, R. R.; Souza, E. S.] Univ Estadual Campinas, UNICAMP, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP, Brazil |
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Publisher |
Amer Physical Soc |
Place of Publication |
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Language |
English |
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Original Title |
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Series Volume |
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Edition |
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ISSN |
2470-0010 |
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Notes |
WOS:001619524200004 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
6952 |
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