Nuclear structure, chaos and

bordering fields of computational physics

Members:

        Paar Vladimir, principal investigator
	Brant Slobodan
	Vretenar Dario
	Lopac Vjera
	Pezer Robert
	Pavin Nenad
	Marija Rosandić

	Antun Rubčić

	Hrvoje Buljan

	Ivan Basar

	Ivica Luketin

	Tamara Nikšić

	Vladimir Krstić

	Matko Glunčić

Nuclear structure was investigated in terms of one and two-broken pairs coupled to interacting bosons, and in terms

of the new theoretical model IBFFM. Both models were developed and the corresponding computer codes written in Zagreb.

These models were successfully applied to selected nuclei, in collaboration with experimental efforts by scientists in

leading foreign laboratories (Yale University, Institute Laue-Langevin Grenoble, FA Juelich, Technische Universitaet

Muenchen, Brookhaven National Laboratory, Lawrence Livermore National Laboratory University of California Berkeley etc.).

Microscopic theory underlying the boson-fermion-fermion dynamical symmetry was developed within the framework of IBFFM.

2) Time-dependent relativistic mean-field theory was developed for description of nuclei (see: Vretenar Dario).

3) New theoretical method for spin-dependent level densities was developed and exemplified  and a new algebraic

spin-dependent level density formula proposed. 4)Quantum chaos was investigated for isospin breaking in a realistic

shell model, and in relation to dynamical symmetry and symmetry breaking in the framework of the interacting boson

model. Chaotic pattern of the classical limit of SU(3) model of IBM was investigated. 5) Numerical investigations

of the regular, quasiperiodic and chaotic behavior of one-dimensional robot model were performed. The required computer

codes are being developed. 6) Numerical simulation was applied to clinical medicine in gastroenterology.

7) Applications of chaos for development of novel criptographic algorithm of extreme robustness.

8) Novel algorithms in computational human genomics, with applications to alpha satellite higher-order repeats in

centromeres of all human chromosomes.

IBFFM computations for odd-odd nuclei

S.Brant and V.Paar

Department of Physics, Faculty of Science, University of Zagreb, Zagreb, Croatia

Abstract: A survey of investigations of odd-odd nuclei in interacting boson-fermion-fermion model IBFFM during last ten years is presented. Computations of even-even, odd-even, even-odd and odd-odd members of the quadruplets of neighboring nuclei are discussed. An overview of IBFFM computations for nuclear structure of odd-odd K, Cu, Ga, As, Ag, In, Sb, I, Cs ,Pr, Ir, Au and Tl nuclei is presented. Characteristic physical correlations of IBFFM are discussed. IBFFM band-pattern diagrams associated with dynamical symmetries of the core are surveyed.

IBFFM Project