Shell Model as a Unified View of Nuclear Structure

Session

Recent progress in shell model and other approaches to nuclear structure

10 oct. 2012, 09:15

Amphi Gruenwald (Institut Pluridisciplinaire Hubert Curien)

6. Mean field theories, recent developments

Dr Luis Robledo (Universidad Autonoma de Madrid)

10/10/2012 09:30

Recent progress in the nuclear shell model and other approaches to nuclear structure

Two items will be addressed in this talk, the first concern developments to compute the overlaps required for beyond mean field theories of the HFB type. They are based on the powerful concept of the Pfaffian of a skew symmetric matrix and are specially useful for odd-A systems where time reversal invariance is broken. The second concerns a recently proposed energy density functional...

22. Recent results in quantum chaos and its applications to nuclei and particles

Jose Gomez (Universidad Complutense de Madrid)

10/10/2012 10:15

Recent progress in the nuclear shell model and other approaches to nuclear structure

In the last decade or so, the study of chaos in nuclei and other quantum systems has been a very active research field. Besides work based on random matrix theory, new theoretical developments making use of information theory, time series analysis, and the merging of thermodynamics and the semiclassical approximation have been published [1]. In this talk, a survey of chaotic dynamics in...

20. Complexity, scale invariance and sensitivity in the nuclear shell model

Dr Víctor Velázquez (Universidad Nacional Autónoma de México)

10/10/2012 11:25

Recent progress in the nuclear shell model and other approaches to nuclear structure

The atomic nucleus is a many-body quantum system, where both the excitation energies and the wave functions can show specific correlations. From Random Matrix Theory, we know that these correlations are related to the underlying nuclear dynamics. In this work, we analyze concepts like complexity, scale invariance and sensitivity in the framework of the nuclear shell model, in the JT-scheme for...

24. Shell-model half-lives for r-process waiting point nuclei including first-forbidden contributions

Dr Qijun Zhi (TU Darmstadt)

10/10/2012 12:00

Recent progress in the nuclear shell model and other approaches to nuclear structure

We have performed large-scale shell-model calculations of the half-lives and neutron-branching probabilities of the r-process waiting point nuclei at the magic neutron numbers N=50, 82, and 126. The calculations include contributions from allowed Gamow-Teller and, for the first time, also from first-forbidden transitions. We find good agreement with the measured half-lives for the N=50...