  Raman and ARPES experiments have demonstrated that in superconducting
underdoped cuprates nodal and antinodal regions are characterized by two energy
scales instead of the one expected in BCS. The nodal scale decreases with
underdoping while the antinodal one increases. Contrary to the behavior
expected for an increasing energy scale, the antinodal Raman intensity
decreases with decreasing doping. Using the Yang, Rice and Zhang (YRZ) model,
we show that these features are a consequence of the non-conventional nature of
the superconducting state in which superconductivity and pseudogap correlations
are both present and compete for the phase space.
