DSAM lifetime measurements for the chiral pair in Tl-194

作者：Masiteng P L^*; Pasternak A A; Lawrie E A^*; Shirinda O; Lawrie J J; Bark R A; Bvumbi S P; Kheswa N Y; Lindsay R; Lieder E O; Lieder R M; Madiba T E; Mullins S M; Murray S H T; Ndayishimye J; Ntshangase S S; Papka P; Sharpey Schafer J F

来源：European Physical Journal A, 2016, 52(2): 28.

DOI：10.1140/epja/i2016-16028-y

Most important for the identification of chiral symmetry in atomic nuclei is to establish a pair of bands that are near-degenerate in energy, but also in B(M1) and B(E2) transition probabilities. Dedicated lifetime measurements were performed for four bands of Tl-194, including the pair of four-quasiparticle chiral bands with close near-degeneracy, considered as a prime candidate for best chiral symmetry pair. The lifetime measurements confirm the excellent near-degeneracy in this pair and indicate that a third band may be involved in the chiral symmetry scenario.

• 出版日期2016-2-12