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    National Tsing Hua University Institutional Repository > 原子科學院  > 生醫工程與環境科學系 > 期刊論文 >  Unified description of collective nuclei with the interacting boson model

    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/40615

    Title: Unified description of collective nuclei with the interacting boson model
    Authors: Chou, WT;Zamfir, NV;Casten, RF
    教師: 周文采
    Date: 1997
    Publisher: American Physical Society
    Relation: Physical Review. C. Nuclear Physics, American Physical Society, Volume 56, Issue 2, August 1997, Pages 829-838
    Abstract: ©1997 APS - It was recently demonstrated that the empirical linear correlation of E(4(1)(+)) with E(2(1)(+)) is reproduced by the interacting boson model 1 (IBA-1) if a constant value for the coefficient kappa of the Q . Q term is used. This constancy motivates the present investigation of whether it is possible to find sets of IBA-1 parameters, with fixed kappa, that reproduce the data for a more general set of observables and a wide range of nuclei. A consistent procedure, based on contour plots of key observables, was used to extract epsilon and chi values for 145 nuclei spanning the Z = 50-82 shell, which give reasonable overall agreement with the data with smoothly varying parameters. The constant kappa constraint sometimes leads to parameter values different than normal: finite epsilon values (similar to 0.1 MeV) even for rotational nuclei and large chi values for transitional and vibrational nuclei that even increase towards the vibrational region. Finally, a systematic correlation of epsilon values with E(2(1)(+)) was found.
    URI: http://www.aps.org/
    Appears in Collections:[生醫工程與環境科學系] 期刊論文

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