New Levels of \textsuperscript{157}Pm

Gamma rays in coincidence with isotopically-identified fission fragments using VAMOS++ and EXOGAM, produced using \textsuperscript{238}U on a \textsuperscript{9}Be target, at an energy near the Coulomb barrier have been observed [1,2]. In the present work, we have combined data from the in-beam mass- and Z-gated spectra with the $\gamma$-$\gamma$-$\gamma$-$\gamma$ data from \textsuperscript{252}Cf (SF) to assign transitions and levels in \textsuperscript{157}Pm. In contrast to [3], the transitions previously assigned to \textsuperscript{156}Pm are all seen in the M-Z gated spectra of \textsuperscript{157}Pm and are not seen in the M-Z gated spectra of \textsuperscript{156}Pm. The new expanded levels of \textsuperscript{157}Pm are remarkably similar to those of the levels in \textsuperscript{155}Pm, which have been assigned as a well-deformed rotational band built on $\pi$ 5/2 [532], as in \textsuperscript{155}Pm.