Abstract :
With the use of quark model and E-infinity theory, we have calculated the mass of heavier hadrons, such as decuplet baryons and nonet vector mesons, and obtained the nice agreement with experiments. We have also investigated the sum rules among hadron masses, and obtained the good agreement with experiments. We have discussed the mass of heavier particles, such as Higgs bosons, by using the Mahmoud mass formula. We have also classified the mass of elementary particles according to the extended mass formula of Mahmoud , which we have used in this paper (n = 0).
