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arXiv · 1312.0969

Collective Modes in Light Nuclei from First Principles

T. Dytrych·K. D. Launey·J. P. Draayer·P. Maris·J. P. Vary·E. Saule·U. Catalyurek·M. Sosonkina·D. Langr·M. A. Caprio
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Abstract

Results for ab initio no-core shell model calculations in a symmetry-adapted SU(3)-based coupling scheme demonstrate that collective modes in light nuclei emerge from first principles. The low-lying states of 6Li, 8Be, and 6He are shown to exhibit orderly patterns that favor spatial configurations with strong quadrupole deformation and complementary low intrinsic spin values, a picture that is consistent with the nuclear symplectic model. The results also suggest a pragmatic path forward to accommodate deformation-driven collective features in ab initio analyses when they dominate the nuclear landscape.

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T. Dytrych, K. D. Launey, J. P. Draayer, P. Maris, J. P. Vary, E. Saule, U. Catalyurek, M. Sosonkina, D. Langr, M. A. Caprio. 2013-12-03. Collective Modes in Light Nuclei from First Principles. https://doi.org/10.1103/physrevlett.111.252501

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