Examining B(M1) staggering as a fingerprint for chiral doublet bands

Journal Article · Wed Apr 15 04:00:00 EDT 2009 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.79.041302· OSTI ID:21286859

Qi, B; Yao, J M ^[1]; Zhang, S Q ^[1]; Wang, S Y ^[2]; Meng, J ^[1]

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1. School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871 (China)
2. Department of Space Science and Applied Physics, Shandong University at Weihai, Weihai 264209 (China)

The electromagnetic transitions of the doublet bands with different triaxiality parameter {gamma} are discussed in the particle rotor model with {pi}h{sub 11/2} x {nu}h{sub 11/2}{sup -1} configuration. It is found that B(M1) staggering as well as the resulting B(M1)/B(E2) and B(M1){sub in}/B(M1){sub out} staggering are sensitive to the triaxiality parameter {gamma}, and they associate strongly with the characters of nuclear chirality for 15 deg. {<=}{gamma}{<=}30 deg., i.e., the staggering is weak in the chiral vibration region while strong in the static chirality region. For partner bands with near degenerate energy spectra and similar B(M1) and B(E2) transitions, the strong B(M1) staggering can be used as a fingerprint for the static chirality.

• OSTI ID: 21286859
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 4 Vol. 79; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHIRALITY
CONFIGURATION
E2-TRANSITIONS
ENERGY SPECTRA
M1-TRANSITIONS
PARTICLE-CORE COUPLING MODEL
SIMULATION