Self-consistent calculation of the quasiparticle lifetime in two-dimensional disordered metals

A self-consistent calculation of the quasiparticle inverse lifetime in two-dimensional disordered metals is presented in this paper. We confirm the $T\ln \left(\frac{T_2}{T}\right)$ temperature dependence found by Abrahams, Anderson, Lee, and Ramakrishnan but find a different prefactor and temperature $T_2$. In particular, the quasiparticle lifetime is not the same as the weak localization cutoff recently calculated by Fukuyama and Abrahams although it is quite simply related to it.