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${{\mathit \Sigma}^{-}}$ CHARGE RADIUS

INSPIRE   PDGID:

S020CR

VALUE (fm) DOCUMENT ID TECN  COMMENT $0.780$ $\pm0.080$ $\pm0.060$ 1 ESCHRICH 2001 SELX ${{\mathit \Sigma}^{-}}$ ${{\mathit e}}$ $\rightarrow$ ${{\mathit \Sigma}^{-}}{{\mathit e}}$ 1  ESCHRICH 2001 actually gives $\langle{}\mathit r{}^{2}\rangle{}$ = ($0.61$ $\pm0.12$ $\pm0.09$) fm${}^{2}$.

References:

ESCHRICH 2001 PL B522 233 Measurement of the ${{\mathit \Sigma}^{-}}$ Charge Radius by ${{\mathit \Sigma}^{-}}$ Electron Elastic Scattering