First Exploration of Neutron Shell Structure Below Lead and Beyond $\boldsymbol{N=126}$
Abstract
The nuclei below lead but with more than 126 neutrons are crucial to an understanding of the astrophysical -process in producing nuclei heavier than . 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 Hg have been probed using the neutron-adding (,) reaction in inverse kinematics. The radioactive beam of Hg was delivered to the new ISOLDE Solenoidal Spectrometer at an energy above the Coulomb barrier. The spectroscopy of Hg 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 -process.
Keywords
Cite
@article{arxiv.2001.00976,
title = {First Exploration of Neutron Shell Structure Below Lead and Beyond $\boldsymbol{N=126}$},
author = {T. L. Tang and B. P. Kay and C. R. Hoffman and J. P. Schiffer and D. K. Sharp and L. P. Gaffney and S. J. Freeman and M. R. Mumpower and A. Arokiaraj and E. F. Baader and P. A. Butler and W. N. Catford and G. de Angelis and F. Flavigny and M. D. Gott and E. T. Gregor and J. Konki and M. Labiche and I. H. Lazurus and P. T. MacGregor and I. Martel and R. D. Page and Zs. Podolyák and O. Poleshchuk and R. Raabe and F. Recchia and J. F. Smith and S. V. Szwec and J. Yang},
journal= {arXiv preprint arXiv:2001.00976},
year = {2020}
}
Comments
6 pages, 5 figures