BESIII reports a novel extraction of hyperon form factors via vacuum polarization enhancement at J/psi, yielding R = 0.860 ± 0.029 ± 0.010 and phase differences of 1.011 ± 0.094 ± 0.010 rad and 2.128 ± 0.094 ± 0.010 rad for the two charge-conjugate channels, with CP symmetry consistent.
For the Λ, ¯Λ reconstruction, a correction to the MC effi- ciency is made
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Novel method to extract the femtometer structure of strange baryons using the vacuum polarization effect
BESIII reports a novel extraction of hyperon form factors via vacuum polarization enhancement at J/psi, yielding R = 0.860 ± 0.029 ± 0.010 and phase differences of 1.011 ± 0.094 ± 0.010 rad and 2.128 ± 0.094 ± 0.010 rad for the two charge-conjugate channels, with CP symmetry consistent.