Polarization Selection Rules and Superconducting Gap Anisotropy in $B{i}_{2}S{r}_{2}CaC{u}_2{O}_8$

M. R. Norman, M. Randeria, H. Ding +2

We discuss polarization selection rules for angle-resolved photoemission spectroscopy in Bi2212. Using these we show that the ``hump'' in the superconducting gap observed in the $X…