عنوان	Supersymmetric Algebraic Model for Descriptions of Transitional Even-Even and Odd-A Nuclei near the Critical Point of the Vibrational to gamma-Unstable Shapes
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	nuclear supersymmetry, algebraic model, duality relation, Bethe ansatz technique, quasi-spin, transitional nuclei
چکیده	Exactly solvable solution for the spherical to gamma-unstable transition in transitional nuclei is proposed by using the Bethe ansatz technique within an infinite-dimensional Lie algebra and dual algebraic structure. The duality relations between the unitary and quasi-spin algebraic structures for the boson and fermion systems are extended to the mixed boson-fermion system. The structure of U(6/4) nuclear supersymmetry scheme is discussed. We investigate the change in level structure induced by the phase transition by doing a quantal analysis. It is shown that the relation between the even-even and odd-A neighbors implied by nuclear supersymmetry in addition to dynamical symmetry limits can be also used for transitional regions. The experimental evidences are presented for even-even [E(5)] and odd-mass [E(5/4)] nuclei near the critical point symmetry. New experimental data on the 130Xe–131Xe and the 134Ba–135Ba super-multiplets were used to test the predictions of the supersymmetry scheme in the transition region. The low-states energy spectra for these nuclei have been also calculated and compared with the experimental data
پژوهشگران	مریم قپانوری (نفر اول)، نرگس امیری (نفر دوم)، محمد علی جعفریزاده (نفر سوم)، مسعود صیدی (نفر چهارم)