0 30 50 34 v 2 2 7 Ju n 20 03 Structure of positive energy states in a deformed mean - field potential

X iv : n uc l - th / 0 30 50 34 v 1 1 3 M ay 2 00 3 Structure of positive energy states in a deformed mean - field potential

We investigate the properties of single-particle resonances in a nonspherical potential by solving the coupled-channels equations for the radial wave functions. We first generalize the box discretization method for positive energy states to a deformed system. As in the spherical case, we find that the discretized energy is stabilized against the box size when a resonance condition is met. Using...

ar X iv : n uc l - ex / 0 30 50 34 v 2 1 4 Ju n 20 03 ρ ( 770 ) 0 and f 0 ( 980 ) Production in Au + Au and pp

ua nt - p h / 03 06 13 0 v 1 1 9 Ju n 20 03 Even and odd q - deformed charge coherent states and their nonclassical properties

Even and odd q-deformed charge coherent states are constructed , their (over)completeness proved and their generation explored. A D-algebra realization of the SU q (1,1) generators is given in terms of them. They are shown to exhibit SU q (1,1) squeezing and two-mode q-antibunching, but neither one-mode, nor two-mode q-squeezing.

ar X iv : n uc l - th / 0 30 20 68 v 2 1 2 Ju n 20 03 Light clusters production as a probe to nuclear symmetry energy

Using an isospin-dependent transport model for heavy-ion collisions induced by neutron-rich nuclei at intermediate energies, we study the production of light clusters such as deuteron, triton, and He via coalescence of nucleons. We find that both the yields and energy spectra of these light clusters are affected significantly by the density dependence of nuclear symmetry energy, with a stiffer ...

ar X iv : n uc l - th / 0 10 30 70 v 1 2 7 M ar 2 00 1 Nuclear binding energies : Global collective structure and local shell - model correlations

Nuclear binding energies and two-neutron separation energies are analyzed starting from the liquid-drop model and the nuclear shell model in order to describe the global trends of the above observables. We subsequently concentrate on the Interacting Boson Model (IBM) and discuss a new method in order to provide a consistent description of both, ground-state and excited-state properties. We addr...