Spectroscopy of neutron-unbound 27,28F

G. Christian; N. Frank; S. Ash; T. Baumann; P. A. Deyoung; J. E. Finck; A. Gade; G. F. Grinyer; B. Luther; M. Mosby; S. Mosby; J. K. Smith; J. Snyder; A. Spyrou; M. J. Strongman; M. Thoennessen; M. Warren; D. Weisshaar; A. Wersal

doi:10.1103/PhysRevC.85.034327

Spectroscopy of neutron-unbound 27^,28F

G. Christian^*, N. Frank, S. Ash, T. Baumann, P. A. Deyoung, J. E. Finck, A. Gade, G. F. Grinyer, B. Luther, M. Mosby, S. Mosby, J. K. Smith, J. Snyder, A. Spyrou, M. J. Strongman, M. Thoennessen, M. Warren, D. Weisshaar, A. Wersal

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

The ground state of 28F has been observed as an unbound resonance 220 keV above the ground state of 27F. A comparison of this result with USDA/USDB shell model predictions leads to the conclusion that the 28F ground state is primarily dominated by sd-shell configurations. Here we present a detailed report on the experiment in which the ground state resonance of 28F was first observed. Additionally, we report the first observation of a neutron-unbound excited state in 27F at an excitation energy of 2500(220) keV.

Original language	English (US)
Article number	034327
Journal	Physical Review C - Nuclear Physics
Volume	85
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.85.034327
State	Published - Mar 22 2012
Externally published	Yes

Funding

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1103/PhysRevC.85.034327

Cite this

Christian, G., Frank, N., Ash, S., Baumann, T., Deyoung, P. A., Finck, J. E., Gade, A., Grinyer, G. F., Luther, B., Mosby, M., Mosby, S., Smith, J. K., Snyder, J., Spyrou, A., Strongman, M. J., Thoennessen, M., Warren, M., Weisshaar, D., & Wersal, A. (2012). Spectroscopy of neutron-unbound 27^,28F. Physical Review C - Nuclear Physics, 85(3), Article 034327. https://doi.org/10.1103/PhysRevC.85.034327

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title = "Spectroscopy of neutron-unbound 27,28F",

abstract = "The ground state of 28F has been observed as an unbound resonance 220 keV above the ground state of 27F. A comparison of this result with USDA/USDB shell model predictions leads to the conclusion that the 28F ground state is primarily dominated by sd-shell configurations. Here we present a detailed report on the experiment in which the ground state resonance of 28F was first observed. Additionally, we report the first observation of a neutron-unbound excited state in 27F at an excitation energy of 2500(220) keV.",

author = "G. Christian and N. Frank and S. Ash and T. Baumann and Deyoung, {P. A.} and Finck, {J. E.} and A. Gade and Grinyer, {G. F.} and B. Luther and M. Mosby and S. Mosby and Smith, {J. K.} and J. Snyder and A. Spyrou and Strongman, {M. J.} and M. Thoennessen and M. Warren and D. Weisshaar and A. Wersal",

year = "2012",

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doi = "10.1103/PhysRevC.85.034327",

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Christian, G, Frank, N, Ash, S, Baumann, T, Deyoung, PA, Finck, JE, Gade, A, Grinyer, GF, Luther, B, Mosby, M, Mosby, S, Smith, JK, Snyder, J, Spyrou, A, Strongman, MJ, Thoennessen, M, Warren, M, Weisshaar, D & Wersal, A 2012, 'Spectroscopy of neutron-unbound 27^,28F', Physical Review C - Nuclear Physics, vol. 85, no. 3, 034327. https://doi.org/10.1103/PhysRevC.85.034327

TY - JOUR

T1 - Spectroscopy of neutron-unbound 27,28F

AU - Christian, G.

AU - Frank, N.

AU - Ash, S.

AU - Baumann, T.

AU - Deyoung, P. A.

AU - Finck, J. E.

AU - Gade, A.

AU - Grinyer, G. F.

AU - Luther, B.

AU - Mosby, M.

AU - Mosby, S.

AU - Smith, J. K.

AU - Snyder, J.

AU - Spyrou, A.

AU - Strongman, M. J.

AU - Thoennessen, M.

AU - Warren, M.

AU - Weisshaar, D.

AU - Wersal, A.

PY - 2012/3/22

Y1 - 2012/3/22

N2 - The ground state of 28F has been observed as an unbound resonance 220 keV above the ground state of 27F. A comparison of this result with USDA/USDB shell model predictions leads to the conclusion that the 28F ground state is primarily dominated by sd-shell configurations. Here we present a detailed report on the experiment in which the ground state resonance of 28F was first observed. Additionally, we report the first observation of a neutron-unbound excited state in 27F at an excitation energy of 2500(220) keV.

AB - The ground state of 28F has been observed as an unbound resonance 220 keV above the ground state of 27F. A comparison of this result with USDA/USDB shell model predictions leads to the conclusion that the 28F ground state is primarily dominated by sd-shell configurations. Here we present a detailed report on the experiment in which the ground state resonance of 28F was first observed. Additionally, we report the first observation of a neutron-unbound excited state in 27F at an excitation energy of 2500(220) keV.

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