Experimental evidence for transverse wobbling bands in 136Nd
Lv, B. F., Petrache, C. M., Budaca, R., Astier, A., Zheng, K.K., Greenlees, P., Badran, H., Calverley, T., Cox, D. M., Grahn, T., Hilton, J., Julin, R., Juutinen, S., Konki, J., Pakarinen, J., Papadakis, P., Partanen, J., Rahkila, P., Ruotsalainen, P., . . . Andreoiu, C. (2022). Experimental evidence for transverse wobbling bands in 136Nd. Physical Review C, 105(3), Article 034302. https://doi.org/10.1103/PhysRevC.105.034302
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Physical Review CDate
2022Discipline
Ydin- ja kiihdytinfysiikan huippuyksikköKiihdytinlaboratorioFysiikkaCentre of Excellence in Nuclear and Accelerator Based PhysicsAccelerator LaboratoryPhysicsCopyright
© 2022 American Physical Society
The nature of two high-spin bands in 136Nd built on the two-quasiparticle configuration πh211/2, predicted by the triaxial projected shell model as good candidates of transverse wobbling bands, are investigated experimentally. The mixing ratio of one ΔI=1 transition connecting the one-phonon and the zero-phonon wobbling bands is established from a high-statistics JuroGam II γ-ray spectroscopy experiment by using the combined angular correlation and linear polarization method. The resulting wobbling excitation energy and ratios of reduced electromagnetic transition probabilities are in good agreement with results of a new particle-rotor model which rigidly couples the total angular momentum of two quasiparticles to a triaxial core in an orthogonal geometry, confirming thus the transverse wobbling nature of the bands.
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This work has been supported by the Special Research Assistant Project of the Chinese Academy of Sciences; by the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB34000000); by the Academy of Finland under the Finnish Centre of Excellence Programme (2012-2017); by the EU 7th Framework Programme Project No. 262010 (ENSAR); by the French Ministry of Foreign Affairs and the Ministry of Higher Education and Research, France (PHC PROTEA Grant No. 42417SE); by the National Research, Development and Innovation Fund of Hungary (Project No. K128947), as well as by the European Regional Development Fund (Contract No. GINOP-2.3.3-15- 2016-00034); by the Polish National Science Centre (NCN) Grant No. 2013/10/M/ST2/00427; by the Swedish Research Council under Grant No. 621-2014-5558. The use of germanium detectors from the GAMMAPOOL is acknowledged. I.K. was supported by National Research, Development and Innovation Office-NKFIH, Contract No. PD 124717. R.B. acknowledges the financial support of the Romanian Ministry of Research, Innovation and Digitalization, through Project No. PN-19-06-01-01/2019-2022. ...License
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