Electric QuadrupoleE2- Transitions of^170−174YbIsotopes

Abstract

Abstract. The non-adiabatic effects which is manifested in the electric properties of low-lying states of even-even deformed nuclei are studied. A simple phenomenological model which takes into account the Coriolis mixing of K π = 0 IntroductionDespite the fact that the structure of deformed nuclei and nature of low excited levels have been substantially studies over more than four decades, this still occupies a central part of today's research Refs.[1]- [3].The isotopes of Yb is the deformed nuclei in rare-earth region and the spherical nuclei near Z = 70. For well deformed nuclei the states associated with ground state rotation produce regular sequences which dominate the yrast line. The nuclei 170,172,174 Y b have been well studied. In highspin spectroscopy studies of rare-earth nuclei, the isotopes of ytterbium have been a central focus for many experiments, and a large body of data has been established [4].It is important to note that these are investigated in a number of ways such as radioactive decay of 170,172,174 Lu, and different nuclear reactions. In these isotopes, many 1 + states and K π = 0 + , 2 + bands have been observed.Numerous conducted experiments on defining spectroscopic characteristics of low-lying exciting states, particular K π = 1 + in deformed nuclei [5], have motivated the further theoretical investigations. In this case, investigations influence of K π = 1 + states to the properties of lowlying levels is actual.In the present paper analyzing properties of positive parity low-lying state in the transuranium nuclei, within the phenomenological model