Physics Letters B (Oct 2022)
Lifetime measurements in 80Br and a new region for observation of chiral electromagnetic selection rules
- R.J. Guo,
- S.Y. Wang,
- R. Schwengner,
- W.Z. Xu,
- B. Qi,
- C. Liu,
- A. Rohilla,
- F. Dönau,
- T. Servene,
- H. Schnare,
- J. Reif,
- G. Winter,
- L. Käubler,
- H. Prade,
- S. Skoda,
- J. Eberth,
- H.G. Thomas,
- F. Becker,
- B. Fiedler,
- S. Freund,
- S. Kasemann,
- T. Steinhardt,
- O. Thelen,
- T. Härtlein,
- C. Ender,
- F. Köck,
- P. Reiter,
- D. Schwalm
Affiliations
- R.J. Guo
- Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, School of Space Science and Physics, Institute of Space Sciences, Shandong University, Weihai 264209, People's Republic of China
- S.Y. Wang
- Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, School of Space Science and Physics, Institute of Space Sciences, Shandong University, Weihai 264209, People's Republic of China; Corresponding author.
- R. Schwengner
- Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
- W.Z. Xu
- Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, School of Space Science and Physics, Institute of Space Sciences, Shandong University, Weihai 264209, People's Republic of China
- B. Qi
- Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, School of Space Science and Physics, Institute of Space Sciences, Shandong University, Weihai 264209, People's Republic of China
- C. Liu
- Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, School of Space Science and Physics, Institute of Space Sciences, Shandong University, Weihai 264209, People's Republic of China
- A. Rohilla
- Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, School of Space Science and Physics, Institute of Space Sciences, Shandong University, Weihai 264209, People's Republic of China
- F. Dönau
- Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
- T. Servene
- Continental AG, Babenhausen, Germany
- H. Schnare
- GLOBALFOUNDRIES, 01109 Dresden, Germany
- J. Reif
- Sopra Steria SE, Hamburg, Germany
- G. Winter
- Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
- L. Käubler
- Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
- H. Prade
- Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
- S. Skoda
- Institut für Kernphysik, Universität zu Köln, 50937 Köln, Germany
- J. Eberth
- Institut für Kernphysik, Universität zu Köln, 50937 Köln, Germany
- H.G. Thomas
- ctt, 56410 Montabaur, Germany
- F. Becker
- KIT, 76021 Karlsruhe, Germany
- B. Fiedler
- Institut für Kernphysik, Universität zu Köln, 50937 Köln, Germany
- S. Freund
- Institut für Kernphysik, Universität zu Köln, 50937 Köln, Germany
- S. Kasemann
- FH Vorarlberg, 6850 Dornbirn, Austria
- T. Steinhardt
- JEN, 52428 Jülich, Germany
- O. Thelen
- QMONK, 26629 Großefehn, Germany
- T. Härtlein
- SAP, Walldorf, Germany
- C. Ender
- Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany
- F. Köck
- Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany
- P. Reiter
- Institut für Kernphysik, Universität zu Köln, 50937 Köln, Germany
- D. Schwalm
- Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany
- Journal volume & issue
-
Vol. 833
p. 137344
Abstract
Level lifetimes for the candidate chiral doublet bands of 80Br were extracted by means of the Doppler-shift attenuation method. The absolute transition probabilities derived from the lifetimes agree well with the M1 and E2 chiral electromagnetic selection rules, and are well reproduced by the triaxial particle rotor model calculations. Such good agreements among the experimental data, selection rules of chiral doublet bands and theoretical calculations are rare and outstanding in researches of nuclear chirality. Besides odd-odd Cs isotopes, odd-odd Br isotopes in the A≈ 80 mass region represent another territory that exhibits the ideal selection rules expected for chiral doublet bands.
