On the tension between the latest NOνA and T2K data

The latest data from the T2K and NO ν A experiments show a tension in their preferred values of the oscillation parameters. In this work, we try to identify the source of the tension between the data from these two experiments. An analysis of their data from various channels (individually, and combi...

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Published in:The European physical journal. C, Particles and fields Particles and fields, 2022-10, Vol.82 (10), Article 910
Main Authors: Rahaman, Ushak, Raut, Sushant K.
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics and Cosmology
Data analysis
Elementary Particles
Experiments
Hadrons
Heavy Ions
Measurement Science and Instrumentation
Nuclear Energy
Nuclear Physics
Parameter identification
Particle physics
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Regular Article - Theoretical Physics
String Theory
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description The latest data from the T2K and NO ν A experiments show a tension in their preferred values of the oscillation parameters. In this work, we try to identify the source of the tension between the data from these two experiments. An analysis of their data from various channels (individually, and combined) shows that the tension arises primarily from the ν e appearance data, and is compounded by the ν ¯ μ disappearance data. We provide an explanation for the tension based on parameter degeneracies. Apart from the analysis with the standard matter effect, we also analyse the data with the vacuum oscillation hypothesis. We find that vacuum oscillations fit the data as well as matter effects do; and also reduce the tension between the two experiments. We have also done a study of the future run of NO ν A, T2K and DUNE in the context of establishing this tension with higher statistical significance.
doi_str_mv 10.1140/epjc/s10052-022-10808-w
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subjects Astronomy
Astrophysics and Cosmology
Data analysis
Elementary Particles
Experiments
Hadrons
Heavy Ions
Measurement Science and Instrumentation
Nuclear Energy
Nuclear Physics
Parameter identification
Particle physics
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Regular Article - Theoretical Physics
String Theory
title On the tension between the latest NOνA and T2K data
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