Effect of Weak Binding on the Apparent Spin-Orbit Splitting in Nuclei
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]
- Argonne National Lab. (ANL), Argonne, IL (United States). Physics Division
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Nuclear Science Division
- Publication Date:
- Grant/Contract Number:
- AC02-06CH11357; AC52-07NA27344
- 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)
- 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)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; nuclear many-body theory; shell model; nuclear binding
- OSTI Identifier:
- 1466274
- Alternate Identifier(s):
- OSTI ID: 1406158