我們研究了五體衰變?chǔ)?→e ? e + e ?νμνe e $$ {\ mu} ^ {-} \ to {e} ^ {-} {e} ^ {+} {e} ^ {-} {\ nu} _ {\ mu} {\ overline {\ nu}} _ e $$和τ-→?-?'+?'-ντνˉ?$$ {\ tau} ^ {- } \ to \ {\ ell} ^ {-} {\ ell} ^ {\ prime +} {\ ell} ^ {\ prime-} {\ nu} _ {\ tau} {\ overline {\ nu}} __ {\ ell} $$在標(biāo)準(zhǔn)模型（SM）中以及在一般有效場(chǎng)論中對(duì)?，?'