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Investigation of the high-spin rotational properties of the proton emitter ^113Cs using a particle-number conserving method

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Chinese Physics C 2017年第2期41卷 117-123页

作者：张振华徐鹏 Mathematics and Physics Department North China Electric Power University Beijing 102206 China

The recently observed two high-spin rotational bands in the proton emitter ^113Cs are investigated using the cranked shell model with pairing correlations treated by a particle-number conserving method, in which the Pauli blocking effects are taken into account exactly. By using the configuration assignments of band 1 [π3/2^＋[422]（g7/2）, α =-1/2] and band 2 [π1/2^＋[420]（d5/2）, α=1/2], the experimental moments of inertia and quasiparticle alignments can be reproduced much better by the present calculations than those using the configuration assginment of π1/2^-[550]（h11/2）, which in turn may support these configuration assignments. Furthermore, by analyzing the occupation probability nμ of each cranked Nilsson level near the Fermi surface and the contribution of each orbital to the angular momentum alignments, the backbending mechanism of these two bands is also investigated.

关键词： particle-number conserving method pairing correlations moment of inertia proton emitter

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Projected Shell Model Description for the proton emitters

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原子核物理评论 2016年第2期33卷 190-196页

作者：卞宝安 School of Science Jiangnan University

proton radioactivity is an important decay mode for nuclei near the proton drip-line. Studies of this decay mode can reveal valuable information on exotic nuclear structure and provide important information on the stucture of nuclei in extreme conditions. The new experimental data can let us understand the interactions in exotic systems, which motivate further theoretical development. The most recent application of the projected shell model(PSM) for proton emitters is represented. We study the rotational bands of the deformed proton emitter141 Ho by using the PSM. The experimental data are well reproduced. Strongly suppressed γ transition from the low-lying I~π= 3/2+state makes this state isomeric. Variations in the dynamical moment of inertia are discussed due to band crossings using the band diagram. The calculated results for proton emitter ^(151)Lu shows it is oblately deformed.

关键词： proton emitter nuclear deformation rotational band decay half-life

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Shape transitions in proton-rich Ho and Tm isotopes

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Chinese Physics C 2009年第S1期33卷 9-11页

作者：朱剑钰亓冲刘梦曦崔霄许甫荣 School of Physics and State Key Laboratory of Nuclear Physics and Technology Peking University Center for Theoretical Nuclear Physics National Laboratory for Heavy Ion Physics

Total Routhian Surface (TRS) calculations have been performed for even-even nuclei along proton drip line to study nuclear ground-state deformations, as well as the odd proton nuclei Ho and Tm isotopes. The drip line nuclei show the expected shape transition with the shell e?ects. Ground-state shape changes from prolate to oblate at 143Ho and 145Tm in these two isotopes, which is due to the γ instability around N =76.

关键词： γ softness proton drip line proton emitter

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