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arXiv:1801.06175 [nucl-th]AbstractReferencesReviewsResources

Nuclear deformation in the configuration-interaction shell model

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

Published 2018-01-18Version 1

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.

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