STRUCTURE OF β-DECAY STRENGTH FUNCTION S_β(E) IN HALO NUCLEI

摘要

It is shown that when the parent nucleus has nn Borromean halo structure, then after Gamow-Teller (GT) β~- decay of parent state or after M1 γ decay of Isobar Analogue Resonance (IAR) the states with np tango halo structure or mixed np tango + nn Borromean halo structure can be populated. Resonances in the GT β-decay strength function S_β(E) of halo nuclei may have np tango halo structure or mixed np tango + nn Borromean halo structure. Correct interpretation of halo structure is important in experiments on β-decay study, interpretation of M1 γ decay of IAR, and charge-exchange nuclear reactions analysis.