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Title: First Exploration of Neutron Shell Structure below Lead and beyond N=126

Journal Article · · Physical Review Letters
 [1]; ORCiD logo [1];  [1];  [1];  [2];  [3];  [2];  [4];  [5];  [3];  [6];  [7];  [8];  [9];  [1];  [8];  [3];  [10];  [10];  [2] more »;  [6];  [6];  [7];  [5];  [5];  [11];  [12];  [13];  [5] « less
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
  2. Univ. of Manchester (United Kingdom)
  3. European Organization for Nuclear Research (CERN), Geneva (Switzerland)
  4. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  5. Katholieke Univ. Leuven, Heverlee (Belgium)
  6. Univ. of Liverpool (United Kingdom)
  7. Univ. of Surrey, Guildford (United Kingdom)
  8. Istituto Nazionale di Fisica Nucleare (INFN), Legnaro (Italy)
  9. Univ. Paris-Sud, Orsay (France); Univ. Paris-Saclay, Gif-sur-Yvette (France); National Centre for Scientific Research (CNRS), Paris (France)
  10. Daresbury Lab. (United Kingdom)
  11. Univ. degli Studi di Padova (Italy); National Inst. of Nuclear Physics (INFN), Padova (Italy)
  12. Univ. of the West of Scotland (United Kingdom)
  13. Univ. of Jyvaskyla (Finland); Helsinki Inst. of Physics (Finland)
+ Show Author Affiliations

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.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
Laboratory Directed Research and Development (LDRL); USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
AC02-06CH11357; 89233218CNA000001; 20190021DR
OSTI ID:
1599678
Alternate ID(s):
OSTI ID: 1605991
Journal Information:
Physical Review Letters, Vol. 124, Issue 6; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 23 works
Citation information provided by
Web of Science

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