Nucleos y Simetrías.

Clara Eugenia Alonso Alonso

Resumen


The concept of geometrical symmetry is a rather intuitive one, however, dynamical symmetries are more difficult to understand. Lie algebras are the mathematical tools that describe them. In the last three decades low-lying collective quadrupole states in nuclei have being studied using algebraic techniques with the Interacting Boson Model (IBM). Dynamical symmetries correspond to specific hamiltonians that can be solved analytically. In spite of the practical limitations, these dynamical symmetries provide a benchmark for nuclear structure studies. Even-even, odd-even and multiplets of nuclei (described in the nuclear supersymmetry scheme) that correspond to given dynamical symmetries have been observed. Shape phase transitions in nuclei are also being studied with the IBM

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