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Title: Effect of Weak Binding on the Apparent Spin-Orbit Splitting in Nuclei

Abstract

The apparent splitting between orbitals that are spin-orbit partners can be substantially influenced by the effects of weak binding. In particular, such effects can account for the observed decrease in separation of the neutron $$1{p}_{3/2}$$ and $$1{p}_{1/2}$$ orbitals between the $$^{41}\mathrm{Ca}$$ and $$^{35}\mathrm{Si}$$ isotopes. This behavior has been the subject of recent experimental and theoretical works and cited as evidence for a proton “bubble” in $$^{34}\mathrm{Si}$$ causing an explicit weakening of the spin-orbit interaction. The results reported in this paper suggest that the change in the separation between the $$1{p}_{3/2}$$ and $$1{p}_{1/2}$$ partners occurs dominantly because of the behavior of the energies of these $1p$ neutron states near zero binding.

Authors:
 [1];  [1];  [2]
  1. Argonne National Lab. (ANL), Argonne, IL (United States). Physics Division
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Nuclear Science Division
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1466274
Alternate Identifier(s):
OSTI ID: 1406158
Grant/Contract Number:  
AC02-06CH11357; AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 119; Journal Issue: 18; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; nuclear many-body theory; shell model; nuclear binding

Citation Formats

Kay, B. P., Hoffman, C. R., and Macchiavelli, A. O. Effect of Weak Binding on the Apparent Spin-Orbit Splitting in Nuclei. United States: N. p., 2017. Web. doi:10.1103/PhysRevLett.119.182502.
Kay, B. P., Hoffman, C. R., & Macchiavelli, A. O. Effect of Weak Binding on the Apparent Spin-Orbit Splitting in Nuclei. United States. doi:10.1103/PhysRevLett.119.182502.
Kay, B. P., Hoffman, C. R., and Macchiavelli, A. O. Tue . "Effect of Weak Binding on the Apparent Spin-Orbit Splitting in Nuclei". United States. doi:10.1103/PhysRevLett.119.182502. https://www.osti.gov/servlets/purl/1466274.
@article{osti_1466274,
title = {Effect of Weak Binding on the Apparent Spin-Orbit Splitting in Nuclei},
author = {Kay, B. P. and Hoffman, C. R. and Macchiavelli, A. O.},
abstractNote = {The apparent splitting between orbitals that are spin-orbit partners can be substantially influenced by the effects of weak binding. In particular, such effects can account for the observed decrease in separation of the neutron $1{p}_{3/2}$ and $1{p}_{1/2}$ orbitals between the $^{41}\mathrm{Ca}$ and $^{35}\mathrm{Si}$ isotopes. This behavior has been the subject of recent experimental and theoretical works and cited as evidence for a proton “bubble” in $^{34}\mathrm{Si}$ causing an explicit weakening of the spin-orbit interaction. The results reported in this paper suggest that the change in the separation between the $1{p}_{3/2}$ and $1{p}_{1/2}$ partners occurs dominantly because of the behavior of the energies of these $1p$ neutron states near zero binding.},
doi = {10.1103/PhysRevLett.119.182502},
journal = {Physical Review Letters},
number = 18,
volume = 119,
place = {United States},
year = {2017},
month = {10}
}

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Cited by: 3 works
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