Precise measurements of the annihilation of an electron–positron pair into a neutron–antineutron pair allow us to take a look inside the neutron to better understand its complex structure.

中文翻译：

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中子结构新闻

对正电子对湮灭为中子反中子对的精确测量使我们能够观察中子内部，以更好地了解其复杂结构。