Yrast bands and signature inversion in doubly odd162, 164Lu

High spin rotational bands in 162 Lu and 164 Lu have been studied through the 139 La( 28 Si,5n) and 139 La( 29(30) Si,4(5)n) reactions respectively. For both nuclei the yrast sequence which is associated with the πh 11/2 ⊗νi 13/2 configuration shows the signature inversion feature.