Experimental identification of the , state of and isospin symmetry in studied via one-nucleon knockout reactions
Abstract
In this paper, new experimental data obtained from γ-ray tagged one-neutron and one-proton knockout from 55Co are presented. A candidate for the sought-after T = 1, Tz = 0, Jπ = 6+ state in 54Co is proposed based on a comparison to the new data on 54Fe, the corresponding observables predicted by large-scale-shell-model (LSSM) calculations in the full fp-model space employing charge-dependent contributions, and isospin-symmetry arguments. Furthermore, possible isospin-symmetry breaking in the A = 54, T = 1 triplet is studied by calculating the experimental c coefficients of the isobaric mass multiplet equation (IMME) up to the maximum possible spin J = 6 expected for the (1f7/2)-2 two-hole configuration relative to the doubly magic nucleus 56Ni. Lastly, the experimental quantities are compared to the theoretically predicted c coefficients from LSSM calculations using two-body matrix elements obtained from a realistic chiral effective field theory potential at next-to-next-to-next-to-leading order (N3LO).
- Authors:
-
- Michigan State Univ., East Lansing, MI (United States)
- Univ. of York (United Kingdom)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Univ. of Surrey, Guildford (United Kingdom)
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1580255
- Alternate Identifier(s):
- OSTI ID: 1737593
- Report Number(s):
- BNL-212450-2019-JAAM
Journal ID: ISSN 2469-9985; PRVCAN; TRN: US2102251
- Grant/Contract Number:
- SC0012704; NA0003180; AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review C
- Additional Journal Information:
- Journal Volume: 100; Journal Issue: 6; Journal ID: ISSN 2469-9985
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Direct reactions; energy levels & level densities; nuclear reactions; nuclear structure & decays; nucleon-nucleon interactions; shell model; unstable nuclei induced nuclear reactions
Citation Formats
Spieker, Mark, Weisshaar, D., Gade, A., Brown, B. A., Adrich, P., Bazin, D., Bentley, M. A., Brown, J. R., Campbell, C. M., Diget, C. Aa., Elman, B., Glasmacher, T., Hill, M., Longfellow, B., Pritychenko, Boris, Ratkiewicz, A., Rhodes, D., and Tostevin, J. A. Experimental identification of the T=1 , Jπ=6+ state of Co54 and isospin symmetry in A=54 studied via one-nucleon knockout reactions. United States: N. p., 2019.
Web. doi:10.1103/PhysRevC.100.061303.
Spieker, Mark, Weisshaar, D., Gade, A., Brown, B. A., Adrich, P., Bazin, D., Bentley, M. A., Brown, J. R., Campbell, C. M., Diget, C. Aa., Elman, B., Glasmacher, T., Hill, M., Longfellow, B., Pritychenko, Boris, Ratkiewicz, A., Rhodes, D., & Tostevin, J. A. Experimental identification of the T=1 , Jπ=6+ state of Co54 and isospin symmetry in A=54 studied via one-nucleon knockout reactions. United States. https://doi.org/10.1103/PhysRevC.100.061303
Spieker, Mark, Weisshaar, D., Gade, A., Brown, B. A., Adrich, P., Bazin, D., Bentley, M. A., Brown, J. R., Campbell, C. M., Diget, C. Aa., Elman, B., Glasmacher, T., Hill, M., Longfellow, B., Pritychenko, Boris, Ratkiewicz, A., Rhodes, D., and Tostevin, J. A. Wed .
"Experimental identification of the T=1 , Jπ=6+ state of Co54 and isospin symmetry in A=54 studied via one-nucleon knockout reactions". United States. https://doi.org/10.1103/PhysRevC.100.061303. https://www.osti.gov/servlets/purl/1580255.
@article{osti_1580255,
title = {Experimental identification of the T=1 , Jπ=6+ state of Co54 and isospin symmetry in A=54 studied via one-nucleon knockout reactions},
author = {Spieker, Mark and Weisshaar, D. and Gade, A. and Brown, B. A. and Adrich, P. and Bazin, D. and Bentley, M. A. and Brown, J. R. and Campbell, C. M. and Diget, C. Aa. and Elman, B. and Glasmacher, T. and Hill, M. and Longfellow, B. and Pritychenko, Boris and Ratkiewicz, A. and Rhodes, D. and Tostevin, J. A.},
abstractNote = {In this paper, new experimental data obtained from γ-ray tagged one-neutron and one-proton knockout from 55Co are presented. A candidate for the sought-after T = 1, Tz = 0, Jπ = 6+ state in 54Co is proposed based on a comparison to the new data on 54Fe, the corresponding observables predicted by large-scale-shell-model (LSSM) calculations in the full fp-model space employing charge-dependent contributions, and isospin-symmetry arguments. Furthermore, possible isospin-symmetry breaking in the A = 54, T = 1 triplet is studied by calculating the experimental c coefficients of the isobaric mass multiplet equation (IMME) up to the maximum possible spin J = 6 expected for the (1f7/2)-2 two-hole configuration relative to the doubly magic nucleus 56Ni. Lastly, the experimental quantities are compared to the theoretically predicted c coefficients from LSSM calculations using two-body matrix elements obtained from a realistic chiral effective field theory potential at next-to-next-to-next-to-leading order (N3LO).},
doi = {10.1103/PhysRevC.100.061303},
journal = {Physical Review C},
number = 6,
volume = 100,
place = {United States},
year = {Wed Dec 11 00:00:00 EST 2019},
month = {Wed Dec 11 00:00:00 EST 2019}
}
Web of Science
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