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arXiv · 1801.06175

Nuclear deformation in the configuration-interaction shell model

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

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Y. Alhassid, G. F. Bertsch, C. N. Gilbreth, M. T. Mustonen. 2018-01-18. Nuclear deformation in the configuration-interaction shell model. https://doi.org/10.1088/1742-6596/966/1/012059

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