Low-Spin TSD Bands in Even-Z nuclei: Hiding in Plane Sight?
ORAL
Abstract
Many TSD bands have been reported in the high-spin regime for Dy, Er, Yb, Hf, and W isotopes. However, the low-spin TSD bands, built off the ${\pi}i_{13/2}$ intruder orbital, have gone unreported in these even-Z nuclei, while appearing repeatedly in the nearby Lu, Ta, and Re isotopes. Recent data on $^{169}$W and $^{171}$W, obtained through the $^{118}$Sn($^{55}$Mn,$p3n$) and $^{120}$Sn($^{55}$Mn,$p3n$) reactions respectively, presents evidence for possible low-spin, 2-quasiproton bands, where one of the proton orbitals is suggested to be the ${\pi}i_{13/2}$ intruder. The properties of these two bands are compared to similar structures observed in $^{167}$Hf and $^{169}$Hf, and to ${\pi}i_{13/2}$ bands observed in nearby Ta and Re isotopes.
*Work funded in part by the NSF (PHY-1203100) and the DOE (DE-AC02-06CH11357)
–