Puzzle of two‐pion production: Is the pion a point charge?
DEC 01, 1970
DOI: 10.1063/1.3021861
The pion is acting more like a point charge than most particle physicists had expected. The behavior shows up in electron–positron collision experiments performed during the first six or seven months of operation of the Adone storage ring in Frascati, Italy.
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© 1970 American Institute of Physics
