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BESIII_2018_I1658762

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Analysis of the angular distribution of the baryons produced in $e^+e^-\to\psi(2S) \to p\bar{p}$ and $n\bar{n}$. Gives information about the decay and is useful for testing correlations in hadron decays.

Filter plots: 
ctheta_n:
ctheta_p:
d01-x01-y01:
d01-x01-y02: