Relationship between particle mass and lifetime under the maximal-acceleration correction

It is found that the relationship between particle mass and lifetime can be obtained by assuming that the critical distance where the average interpar ticle acceleration reaches its maximum represents the uncertainty of the in terparticle position. If the interparticle force is given by a static one a s f(r), the relationship can be written as mM < f(eta tau(M)), eta = O(1), where m and M are particle masses, and r,M is the lifetime of the particle with mass M. From the application of the above relationship to the electrow eak interaction, it is found that the lower bounds to charged and neutral l eptons can be estimated as eta(-2) MeV and eta(-1)10(7-19 eta) eV, respecti vely, which suggests that the electron be the lightest among charged lepton s, and that the neutrino be massive with its lightest mass around 1 eV or l ess. It is also found that the upper bound to the Higgs-boson mass can be e stimated as 1 TeV.