{ "id": "1801.06175", "version": "v1", "published": "2018-01-18T18:55:22.000Z", "updated": "2018-01-18T18:55:22.000Z", "title": "Nuclear deformation in the configuration-interaction shell model", "authors": [ "Y. Alhassid", "G. F. Bertsch", "C. N. Gilbreth", "M. T. Mustonen" ], "comment": "6 pages, 4 figures, Proceedings of the Twelfth International Spring Seminar on Nuclear Physics", "categories": [ "nucl-th", "cond-mat.mes-hall", "cond-mat.stat-mech" ], "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.", "revisions": [ { "version": "v1", "updated": "2018-01-18T18:55:22.000Z" } ], "analyses": { "keywords": [ "configuration-interaction shell model", "nuclear deformation", "auxiliary-field monte carlo technique", "quadrupole shape tensor", "axial quadrupole operator" ], "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable" } } }