  Both electronic Raman scattering (ERS) and angle-resolved photoemission
spectra (ARPES) revealed two energy scales for the gap in different momentum
spaces in the cuprates. However, the interpretations were different, and the
gap values were also different in two experiments. In order to clarify the
origin of these discrepancies, we directly compared ERS and ARPES by
calculating ERS from the experimental data of ARPES through the Kubo formula.
The calculated ERS spectra were in good agreement with the experimental results
except for the B$_{1g}$ peak energies. The doping-dependent B$_{2g}$ peak
energy was well reproduced from a doping-independent d-wave gap deduced from
ARPES, by assuming a particular spectral weight distribution along the Fermi
surface. The B$_{1g}$ peak energies could not be reproduced by the ARPES data.
The difference between B$_{1g}$ ERS and antinodal ARPES became larger with
underdoping, which implies that the effect of the pseudogap is different in
these two techniques.
