Browsing by Author "Nureddin TURKAN"

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    E(5) behaviour of the Ge isotopes
    (2010) İsmail MARAŞ; Nureddin TURKAN
    The sufficient aspects of model leading to the E(5) symmetry have been proved by presenting E(5) characteristic of the transitional nuclei $^{64-80}Ge.$ The positive parity states of even-mass Ge nuclei within the framework of Interacting Boson Model have been calculated and compared with the Davidson potential predictions along with the experimental data. It can be said that the set of parameters used in an calculations is the best approximation that has been carried out so far. Hence, Interacting Boson Approximation (IBA) is fairly reliable for the calculation of spectra in such set of Ge isotopes.
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    Search on results of IBM for region between $120 \\leq A \\leq 150:^{120-128} Te$ and $^{122-134}Xe$ nuclei
    (2011) İsmail MARAŞ; Nureddin TURKAN
    In this work, the energy levels and transition probabilities B(E2) of some even-even Te (Z=52, N=68-80 and N=84) and even-even Xe nuclei (Z=54, N=68-80 and N=84-88) have been investigated by using the interacting boson model (IBM-1 and IBM-2). The results were compared with some previous experimental and theoretical values. It was seen that an acceptable degree of agreement between the predictions of the model (IBM-1 and IBM-2) and the experiment is achieved.
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    The investigation of $^{130,132}Te$ by IBM-2
    (2012) İsmail MARAŞ; Nureddin TURKAN; Sait İNAN
    In this study, we determined the most appropriate Hamiltonian that is neededfor present calculations of nuclei in the A $/cong$ 130 region by interacting boson model. The second version of interacting boson model (IBM-2) has been widely used for describing the quadrupole collective states of the medium heavy nuclei. The proton and neutron variables are distinguished when this version of the model is applied. Because it is important to describe the proton and neutron variables explicitely. Using the best-fittedvalues of parameters in the Hamiltonian of the IBM-2, we have calculated energy levels and B(E2) values for $^{130,132}Te$. The results were compared with the previous experimental and theoretical data and it is observed that they are in good agreement. Some B(E2) values that are still not known so far are stated and the set of parameters used in these calculations is the best approximation that has been carried out so far. It has turned out that the interacting boson approximation (IBA) is fairly reliable for thecalculation of spectra in the entire set of such Te isotopes.