{"paper":{"title":"Unexpected distribution of $\\nu1f_{7/2}$ strength in the calcium isotopes at $N$=30","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"nucl-ex","authors_text":"A. Gade, A. O. Macchiavelli, A. Schwenk, A. T. Gallant, A. Wiens, C. Langer, C. M. Campbell, C. Walz, D. Bazin, D. Weisshaar, F. Recchia, H. L. Crawford, I. Y. Lee, J. A. Tostevin, J. D. Holt, J. Dilling, J. Men\\'endez, J. Rissanen, J. Simonis, K. Wimmer, M. Albers, M. Cromaz, M. Scott, P. Fallon, R. Kr\\\"ucken, R. M. Clark, R. V. F. Janssens, S. Noji, S. Paschalis, S. R. Stroberg, S. Zhu, T. Lauritsen, V. M. Bader","submitted_at":"2016-10-05T19:15:56Z","abstract_excerpt":"The calcium isotopes have emerged as an important testing ground for new microscopically derived shell-model interactions, and a great deal of focus has been directed toward this region. We investigate the relative spectroscopic strengths associated with $1f_{7/2}$ neutron hole states in $^{47, 49}$Ca following one-neutron knockout reactions from $^{48,50}$Ca. The observed reduction of strength populating the lowest 7/2$^{-}_{1}$ state in $^{49}$Ca, as compared to $^{47}$Ca, is consistent with the description given by shell-model calculations based on two- and three-nucleon forces in the neutr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.01575","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}