A1 Journal article (refereed)
First Exploration of Neutron Shell Structure below Lead and beyond N=126 (2020)

Tang, T. L., Kay, B. P., Hoffman, C. R., Schiffer, J. P., Sharp, D. K., Gaffney, L. P., Freeman, S. J., Mumpower, M. R., Arokiaraj, A., Baader, E. F., Butler, P. A., Catford, W. N., de Angelis, G., Flavigny, F., Gott, M. D., Gregor, E. T., Konki, J., Labiche, M., Lazarus, I. H., . . . Yang, J. (2020). First Exploration of Neutron Shell Structure below Lead and beyond N=126. Physical Review Letters, 124(6), Article 062502. https://doi.org/10.1103/PhysRevLett.124.062502

JYU authors or editors

Publication details

All authors or editors: Tang, T. L.; Kay, B. P.; Hoffman, C. R.; Schiffer, J. P.; Sharp, D. K.; Gaffney, L. P.; Freeman, S. J.; Mumpower, M. R.; Arokiaraj, A.; Baader, E. F.; et al.

Journal or series: Physical Review Letters

ISSN: 0031-9007

eISSN: 1079-7114

Publication year: 2020

Volume: 124

Issue number: 6

Article number: 062502

Publisher: American Physical Society

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1103/PhysRevLett.124.062502

Publication open access: Openly available

Publication channel open access: Partially open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/68102

Publication is parallel published: https://arxiv.org/abs/2001.00976

Abstract

The nuclei below lead but with more than 126 neutrons are crucial to an understanding of the astrophysical r process in producing nuclei heavier than A∼190. Despite their importance, the structure and properties of these nuclei remain experimentally untested as they are difficult to produce in nuclear reactions with stable beams. In a first exploration of the shell structure of this region, neutron excitations in 207Hg have been probed using the neutron-adding (d,p) reaction in inverse kinematics. The radioactive beam of 206Hg was delivered to the new ISOLDE Solenoidal Spectrometer at an energy above the Coulomb barrier. The spectroscopy of 207Hg marks a first step in improving our understanding of the relevant structural properties of nuclei involved in a key part of the path of the r process.

Keywords: nuclear physics

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Ministry reporting: Yes

Reporting Year: 2020

JUFO rating: 3