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flag U.S.-Japan neutrino experiments achieve 2% precision in measuring mass difference, supporting future physics research.

flag A U.S.-Japan collaboration combining data from the NOvA and T2K neutrino experiments has achieved unprecedented precision—less than 2% uncertainty—in measuring the mass difference between two neutrino types, confirming compatibility between the experiments despite differing designs and distances. flag The findings advance research into neutrino mass ordering and potential differences between neutrinos and antineutrinos, a key clue to why matter dominates over antimatter in the universe. flag Results support future efforts like DUNE, Hyper-Kamiokande, and JUNO to explore fundamental physics, dark matter, dark energy, and cosmic phenomena.

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