Investigation of neutron-deficient isotopes $^{160}$Yb, $^{161}$Yb, $^{163}$Yb and $^{165}$Yb

Abstract

A new isotope /sup 161/Yb(T/sub 1/2/=4.2 min) has been identified. The decay of /sup 160/Yb(T/sub 1/2/=4.8 min), /sup 163/Yb(T/sub 1/2/=11.4 min) and /sup 155/Yb(T/sub 1/2/=9.8 min) has been investigated with Ge (Li), Si(Li) and NaI(Tl) detectors, a toroidal beta -spectrometer and magnetic beta -spectrographs using isobarically separated samples produced by the YASNAPP facility. A decay scheme for /sup 160/Yb, /sup 163/Yb and /sup 165/Yb are proposed