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${{\mathit K}^{0}}$ MEAN SQUARE CHARGE RADIUS

INSPIRE JSON (beta) PDGID:

VALUE (fm${}^{2}$)

EVTS

DOCUMENT ID

TECN

COMMENT

$\bf{ -0.077 \pm0.010}$

OUR AVERAGE

$-0.077$ $\pm0.007$ $\pm0.011$

5037

KTEV

${{\mathit K}_L^0}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit e}^{+}}{{\mathit e}^{-}}$

$-0.090$ $\pm0.021$

NA48

${{\mathit K}_L^0}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit e}^{+}}{{\mathit e}^{-}}$

$-0.054$ $\pm0.026$

${{\mathit K}_{{{S}}}}$ regen. by electrons

• • We do not use the following data for averages, fits, limits, etc. • •

$-0.087$ $\pm0.046$

VMD + dispersion relations

$-0.050$ $\pm0.130$

${{\mathit K}_{{{S}}}}$ regen. by electrons

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