An explicit Ricci potential for the Universal Moduli Space of Vector   Bundles
  In this paper we modify the coordinate construction in our previous paper on the universal moduli space of pair consisting of a Riemann Surfaces and a stable holomorphic bundles on the Riemann Surface, so as to produce a new set of coordinates, which are in fact K\" ahler coordinates on this universal moduli space. Further, we give a functional determinant formula for the Ricci potential of the universal moduli space. 
J{\o}rgen Ellegaard Andersen and Niccolo Skovg{\aa}rd Poulsen
math.DG