  A well-known peak-dip-hump structure exists near $(\pi, 0)$ in
superconducting state ARPES spectra of $Bi_{2}Sr_{2}CaCu_{2}O_{8+\delta}$
(Bi2212). Here we report results on optimal and overdoped Bi2212 samples
indicating the traditional peak-dip-hump structure observed near $(\pi,0)$ is
largely due to bilayer splitting. However a separate, much weaker peak-dip hump
(PDH) structure distinct from bilayer splitting can be detected near $(\pi,
0)$. This new PDH structure is consistent with electronic coupling to the
magnetic resonance mode in Bi2212. Both the dispersion and line shape
signatures indicate strong coupling to this mode.
