Zhipan Li

Beyond the relativistic mean-field approximation. III. Collective Hamiltonian in five dimensions

The framework of relativistic energy density functionals is extended to include correlations related to the restoration of broken symmetries and fluctuations of collective variables. A new implementation is developed for the solution of the eigenvalue problem of a five-dimensional collective Hamiltonian for quadrupole vibrational and rotational degrees of freedom, with parameters determined by constrained self-consistent relativistic mean-field calculations for triaxial shapes. The model is tested in a series of illustrative calculations of potential energy surfaces and the resulting collective excitation spectra and transition probabilities of the chain of even-even gadolinium isotopes.

Microscopic analysis of nuclear quantum phase transitions in the N ≈ 90 region

The analysis of shape transitions in Nd isotopes, based on the framework of relativistic energy-density functionals and restricted to axially symmetric shapes in T. Nikifmmode check{s}else v{s}fi{}iifmmode acute{c}else {c}fi{}, D. Vretenar, G. A. Lalazissis, and P. Ring [Phys. Rev. Lett. 99, 092502 (2007)], is extended to the region

Microscopic description of spherical to γ-soft shape transitions in Ba and Xe nuclei

Z=60,62,64

Microscopic Analysis of Order Parameters in Nuclear Quantum Phase Transitions

with

Pion photoproduction on the nucleon in the quark model

Nensuremath{approx}90

Global dynamical correlation energies in covariant density functional theory: Cranking approximation

and includes both

Efficient method for computing the Thouless-Valatin inertia parameters

ensuremath{beta}

Microscopic study of induced fission dynamics of 226Th with covariant energy density functionals

and

Single-particle resonances in a deformed relativistic potential

ensuremath{gamma}

Nuclear quantum shape-phase transitions in odd-mass systems

deformations. Collective excitation spectra and transition probabilities are calculated starting from a five-dimensional Hamiltonian for quadrupole vibrational and rotational degrees of freedom, with parameters determined by constrained self-consistent relativistic mean-field calculations for triaxial shapes. The results reproduce available data and show that there is an abrupt change of structure at