Particle Name

Mass Formula

Theoretical Value A of Mass (Mev)

Experimental Value [2] B of Mass (Mev)

Error Rate = (A/B − 1)*%

${\Sigma }^{+}$

$m_{{\Sigma }^{+}}=m_{{\Sigma }^0}{\left(1-0.5\ln \left(1-\frac{10\sqrt{3}}{27}\alpha \right)\right)}^{-}$

1185.60

$1189.37\pm 0.07$

$-0.32\%$

${\Sigma }^0$

$m_{{\Sigma }^0}$

1188.38

$1192.642\pm 0.024$

$-0.35\%$

${\Sigma }^{-}$

$m_{{\Sigma }^{+}}=m_{{\Sigma }^0}{\left(1-0.5\ln \left(1+\frac{14\sqrt{3}}{27}\alpha \right)\right)}^{-}$

1192.28

$1197.449\pm 0.030$

$-0.43\%$