3 years ago

Nuclear deformation in the configuration-interaction shell model.

C.N. Gilbreth, G.F. Bertsch, M.T. Mustonen, Y. Alhassid

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.

Publisher URL: http://arxiv.org/abs/1801.06175

DOI: arXiv:1801.06175v1

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