  We use the McLerran-Venugopalan model of the glasma energy-momentum tensor to
compute the rapidity loss and excitation energy of the colliding nuclei in the
fragmentation regions followed by a space-time picture to obtain their energy
and baryon densities. At the top RHIC energy we find baryon densities up to 3
baryons/fm$^3$, which is 20 times that of atomic nuclei. Assuming the formation
of quark-gluon plasma, we find initial temperatures of 200 to 300 MeV and
baryon chemical potentials of order 1 GeV. Assuming a roughly adiabatic
expansion it would imply trajectories in the $T-\mu$ plane which would straddle
a possible critical point.
