4.7 Article

Rotational excitations in near neutron-drip line nuclei: The birth and death of particle-bound rotational bands and the extension of nuclear landscape beyond spin zero neutron drip line

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PHYSICS LETTERS B
卷 794, 期 -, 页码 7-13

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ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2019.05.021

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  1. U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-SC0013037]
  2. KAKENHI [17K05440]

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Two new mechanisms active in rotating nuclei located in the vicinity of neutron drip line have been discovered. Strong Coriolis interaction acting on high-j orbitals transforms particle-unbound (resonance) nucleonic configurations into particle-bound ones with increasing angular momentum. The point of the transition manifests the birth of particle-bound rotational bands. Alternative possibility of the transition from particle-bound to resonance rotational band (the death of particle-bound rotational bands) with increasing spin also exists but it is less frequent in the calculations. The birth of particle-bound rotational bands provides a mechanism for the extension of nuclear landscape to neutron numbers which are larger than those of the neutron drip line in non-rotating nuclei. (C) 2019 The Author(s). Published by Elsevier B.V.

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