Shot noise in chaotic cavities with an arbitrary number of open channels
  Using the random matrix approach, we calculate analytically the average shot-noise power in a chaotic cavity at an arbitrary number of propagating modes (channels) in each of the two attached leads. A simple relationship between this quantity, the average conductance and the conductance variance is found. The dependence of the Fano factor on the channel number is considered in detail. 
D. V. Savin, H.-J. Sommers