Nuclear deformation in the configuration-interaction shell model

Abstract

We review a method that we recently introduced to calculate the finite-temperature distribution of the axial quadrupole operator in the laboratory frame using the auxiliary-field Monte Carlo technique in the framework of the configuration-interaction shell model. We also discuss recent work to determine the probability distribution of the quadrupole shape tensor as a function of intrinsic deformation $\beta ,\gamma$ by expanding its logarithm in quadrupole invariants. We demonstrate our method for an isotope chain of samarium nuclei whose ground states describe a crossover from spherical to deformed shapes.

6 pages, 4 figures, Proceedings of the Twelfth International Spring Seminar on Nuclear Physics

References in corpus (5)

• Heavy deformed nuclei in the shell model Monte Carlo method
• Crossover from vibrational to rotational collectivity in heavy nuclei in the shell-model Monte Carlo approach
• Shell model based deformation analysis of light Cadmium isotopes
• Nuclear deformation at finite temperature
• Nuclear deformation in the laboratory frame

Cited by in corpus (1)

• Reaching the continuum limit in finite-temperature ab initio field-theory computations in many-fermion systems