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Nuclear Physics Around the Unitarity Limit

Abstract : We argue that many features of the structure of nuclei can be understood in the unitarity limit, where the two-nucleon S-waves have bound states at zero energy. In this limit, the only dimensionful parameter, related to the breaking of scale invariance to a discrete scaling symmetry, is set by the triton binding energy. For A <= 4 nucleons, we demonstrate that the spectrum can be obtained as a controlled perturbative expansion around the unitarity limit.
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Contributor : Sophie Heurteau Connect in order to contact the contributor
Submitted on : Tuesday, August 23, 2016 - 2:43:34 PM
Last modification on : Friday, April 30, 2021 - 10:22:10 AM

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S. König, H. W. Grießhammer, H. -W. Hammer, U. van Kolck. Nuclear Physics Around the Unitarity Limit. Physical Review Letters, American Physical Society, 2017, 118, pp.202501. ⟨10.1103/PhysRevLett.118.202501⟩. ⟨in2p3-01355500⟩



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