Background: Shape deformations and charge radii, basic properties of atomic nuclei, are influenced by both the global features nuclear force nucleonic shell structure. As functions proton neutron number, quantities show regular patterns and, for nuclei away from magic numbers, they change very smoothly nucleus to nucleus.Purpose: In this paper, we explain how local effects impacting statistical...

Statistical description of nuclear break-up. Abstract We present an overview of concepts and results obtained with statistical models in study of nuclear multifragmentation. Conceptual differences between statistical and dynamical approaches, and selection of experimental observables for identification of these processes, are outlined. New and perspective developments, like inclusion of in-medi...

We demonstrate nuclear double resonance for nanometer-scale volumes of spins where random fluctuations rather than Boltzmann polarization dominate. When the Hartmann-Hahn condition is met in a cross-polarization experiment, flip-flops occur between two species of spins and their fluctuations become coupled. We use magnetic resonance force microscopy to measure this effect between 1H and 13C spi...

The concept of freeze out volume used in many statistical approaches for disassembly of hot nuclei leads to ambiguities. The fragmentation pattern and the momentum distribution (temperature) of the emanated fragments are determined by the phase space at the freeze-out volume where the interaction among the fragments is supposedly frozen out. However, to get coherence with the experimental momen...

The fusion evaporation-residue cross sections for 32 S+ 184 W have been mea-246, and 257 MeV using the ATLAS Fragment Mass Analyzer. The data are compared with Statistical Model calculations and it is found that a nuclear dissipation strength, which increases with the excitation energy is required to reproduce the excitation function. A comparison with previously published data shows that the d...

The temperature dependence of the liquid-drop fission barrier is considered, the critical temperature for the liquid-gas phase transition in nuclear matter being a parameter. Experimental and calculated data on the fission probability are compared for highly excited 188 Os. The calculations have been made in the framework of the statistical model. It is concluded that the critical temperature f...

We present an overview of concepts and results obtained with statistical models in study of nuclear multifragmentation. Conceptual differences between statistical and dynamical approaches, and selection of experimental observables for identification of these processes, are outlined. New and perspective developments, like inclusion of in-medium modifications of the properties of hot primary frag...

We explore the behavior of collective nuclear excitations under a multi-parameter deformation of the Hamiltonian. The Hamiltonian matrix elements have the form P (|Hij |) ∝ 1/ √ |Hij | exp(−|Hij|/V ), with a parametric correlation of the type log〈H(x)H(y)〉 ∝ −|x − y|. The studies are done in both the regular and chaotic regimes of the Hamiltonian. Model independent predictions for a wide variet...

The fusion evaporation-residue cross sections for 32 S+ 184 W has been mea-246, and 257 MeV using the ATLAS Fragment Mass Analyzer. The data are compared with Statistical Model calculations and it is found that a nuclear dissipation strength, which increases with the excitation energy is required to reproduce the excitation function. A comparison with previously published data show that the dis...