25–30 May 2025
Daejeon Convention Center (DCC)
Asia/Seoul timezone

Evidence for the coexistence of chiral doublet bands and stapler band in 81Br

29 May 2025, 11:25
15m
Room 8: 1F #105 (DCC)

Room 8: 1F #105

DCC

Contributed Oral Presentation Nuclear Structure Parallel Session

Speaker

Chen Liu (Shandong University, Weihai)

Description

High spin states of odd A 81Br were populated using the 82Se(4He, p4n) reaction with the beam energy of 65 and 68 MeV. A pair of nearly degenerate negative parity bands were observed in this nuclues, as well as a negative parity dipole band. Based on the experimental characters of these bands, they were respectively interpreted as a pair of chiral doublet bands based on the π(fp, g9/2g9/2) configuration and a stapler band. The interpretation was supported by the multiparticle rotor model and the self-consistent tilted axis cranking covariant density functional theory calculations. The present work suggests a new chiral configuration in the nuclear system, and provides the evidence for the coexistence of chiral doublet bands and stapler band in 81Br.

Author

Chen Liu (Shandong University, Weihai)

Co-author

Prof. Shouyu Wang (Shandong University, Weihai)

Presentation materials