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Shape Changes in the N = 28 Island of Inversion: Collective Structures Built on Configuration-Coexisting States in 43S

Journal Article · · Physical Review Letters
 [1];  [2];  [2];  [2];  [2];  [2];  [2];  [2];  [2];  [3]
  1. Michigan State Univ., East Lansing, MI (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Michigan State University
  2. Michigan State Univ., East Lansing, MI (United States)
  3. Michigan State Univ., East Lansing, MI (United States); Florida State Univ., Tallahassee, FL (United States)
+ Show Author Affiliations
The neutron-rich nuclei in the N = 28 island of inversion have attracted considerable experimental and theoretical attention, providing great insight into the evolution of shell structure and nuclear shape in exotic nuclei. In this study, for the first time, quadrupole collectivity is assessed simultaneously on top of the 3/2- ground state and the 7/2- shape-coexisting isomer of 43S, putting the unique interpretation of shape and configuration coexistence at N = 27 and 28 in the sulfur isotopic chain to the test. From an analysis of the electromagnetic transition strengths and quadrupole moments predicted within the shell model, it is shown that the onset of shape coexistence and the emergence of a simple collective structure appear suddenly in 43S with no indication of such patterns in the N = 27 isotone 45Ar.
Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Michigan State Univ., East Lansing, MI (United States)
Sponsoring Organization:
National Science Foundation; USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
AC52-07NA27344; NA0003180; SC0020451
OSTI ID:
1733235
Alternate ID(s):
OSTI ID: 1755183
OSTI ID: 1755814
Report Number(s):
LLNL-JRNL--816153
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 23 Vol. 125; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (42)

Relativistic coulomb excitation journal May 1979
Transition to deformed shapes as a nuclear Jahn-Teller effect journal May 1984
Microscopic origin of nuclear deformations journal July 1994
Commissioning the A1900 projectile fragment separator journal May 2003
The S800 spectrograph journal May 2003
Focal plane detector for the S800 high-resolution spectrometer
  • Yurkon, J.; Bazin, D.; Benenson, W.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 422, Issue 1-3 https://doi.org/10.1016/S0168-9002(98)00960-7
journal February 1999
Collectivity in 44S journal March 1997
CAESAR—A high-efficiency CsI(Na) scintillator array for in-beam spectroscopy with fast rare-isotope beams
  • Weisshaar, D.; Gade, A.; Glasmacher, T.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 624, Issue 3 https://doi.org/10.1016/j.nima.2010.09.148
journal December 2010
New CsI(Na) hodoscope array for the S800 spectrograph at NSCL
  • Meierbachtol, K.; Bazin, D.; Morrissey, D. J.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 652, Issue 1 https://doi.org/10.1016/j.nima.2010.10.053
journal October 2011
IsoTagger: Identification of isomeric nuclear states produced in fragmentation reactions with radioactive beams
  • Wimmer, K.; Barofsky, D.; Bazin, D.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 769 https://doi.org/10.1016/j.nima.2014.09.081
journal January 2015
In-beam nuclear spectroscopy of bound states with fast exotic ion beams journal January 2008
Nuclear magic numbers: New features far from stability journal October 2008
Isomers, nuclear structure and spectroscopy journal January 2013
NSCL and FRIB at Michigan State University: Nuclear science at the limits of stability journal April 2016
Review of metastable states in heavy nuclei journal May 2016
On the measurement of B ( E 2, 0 + 1 → 2 + 1 ) using intermediate-energy Coulomb excitation journal September 2007
On the "Magic Numbers" in Nuclear Structure journal June 1949
On Closed Shells in Nuclei. II journal June 1949
Shell structure of S 43 and collapse of the N = 28 shell closure journal September 2020
Coulomb excitation of odd- A neutron-rich π ( s − d ) and ν ( f − p ) shell nuclei journal February 1999
Detailed experimental study on intermediate-energy Coulomb excitation of 46 Ar journal July 2003
Accuracy of B ( E 2 ; 0 1 + → 2 1 + ) transition rates from intermediate-energy Coulomb excitation experiments journal February 2006
New effective interaction for 0 ℏ ω shell-model calculations in the sd − pf valence space journal January 2009
Rotational and neutron-hole states in S 43 via the neutron knockout and fragmentation reactions journal September 2009
Triple configuration coexistence in S 44 journal June 2011
Shape transitions in exotic Si and S isotopes and tensor-force-driven Jahn-Teller effect journal November 2012
Prolate, oblate, and triaxial shape coexistence, and the lost magicity of N = 28 in 43 S journal January 2013
Quadrupole collectivity in neutron-deficient Sn nuclei: 104 Sn and the role of proton excitations journal November 2013
Shell model structure of 43 S and 44 S re-examined journal May 2014
Merging of the islands of inversion at N = 20 and N = 28 journal July 2014
Quadrupole collectivity beyond N = 50 in neutron-rich Se and Kr isotopes journal October 2017
Shell Erosion and Shape Coexistence in S 27 16 43 journal March 2009
Prolate-Spherical Shape Coexistence at N = 28 in S 44 journal September 2010
Is the 7 / 2 1 − Isomer State of S 43 Spherical? journal April 2012
Nature of Isomerism in Exotic Sulfur Isotopes journal January 2015
Collective and Single-Particle Motion in Beyond Mean Field Approaches journal February 2016
Isomeric Character of the Lowest Observed 4 + State in S 44 journal January 2017
Lifetime Measurements and Triple Coexisting Band Structure in S 43 journal July 2018
Shape Coexistence and the N = 28 Shell Closure Far from Stability journal May 2000
Collapse of the N = 28 Shell Closure in S 42 i journal July 2007
Evolution of shell structure in exotic nuclei journal March 2020
Coulomb Excitation at Intermediate Energies journal December 1998

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Collective levels
Electromagnetic transitions
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Shell model