Ph.D. Tezi Görüntüleme

Student:	Mehmet KURUOĞLU
Supervisor:	Doç. Dr. A. Hakan YILMAZ
Department:	Fizik
Institution:	Graduate School of Natural and Applied Sciences
University:	Karadeniz Technical University, Turkey

Title of the Thesis:	An Investigation of Even-Even (88-116) 44Ru Nuclei in The Interacting Boson Model-2
Level:	Ph.D.
Acceptance Date:	25/8/2009
Number of Pages:	112
Registration Number:	Di712

Summary:

In this work, excitation energies, electromagnetic transition strengths of B(E2) and B(M1), excitation energy ratios, B(E2) branching ratios, quadrupole moments and magnetic moments of the 2^+_1 states, δ(E2/M1) mixing ratios and F-spin amplitudes in (88-116) 44Ru nuclei were studied systematically by using the interacting boson model-2.

The calculations were carried out by using an improved version of the NPBOS and NPBTRN codes.

The calculated nuclear properties for Ru nuclei as well as the experimental ones are agree.

In order to locate the ruthenyum nuclei on the map of the IBM-2 parameters, the branching ratios were examined. It is found that (88-92) 44Ru and (96-102) 44Ru nuclei are classified in the vibrational limit, while (104-116) 44Ru nuclei are put in the transition (U(5)→O(6)) limit.

δ(E2/M1) mixing ratios were found in the same sign and strenght with the experimental ones.

It is also analyzed the F-spin amplitudes then it is seen that there is an agreement with theory.

Key words : Interacting Boson Model-2, Excitation Energy, Branching Ratio, Quadrupole Moment, Mixing Ratio, Magnetic Moment, NPBOS, F-Spin Amplitudes, Nuclear Structure