Unbound excited states of the N=16 closed shell nucleus O 24

W. F. Rogers; S. Garrett; A. Grovom; R. E. Anthony; A. Aulie; A. Barker; T. Baumann; J. J. Brett; J. Brown; G. Christian; P. A. Deyoung; J. E. Finck; N. Frank; A. Hamann; R. A. Haring-Kaye; J. Hinnefeld; A. R. Howe; N. T. Islam; M. D. Jones; A. N. Kuchera; J. Kwiatkowski; E. M. Lunderberg; B. Luther; D. A. Meyer; S. Mosby; A. Palmisano; R. Parkhurst; A. Peters; J. Smith; J. Snyder; A. Spyrou; S. L. Stephenson; M. Strongman; B. Sutherland; N. E. Taylor; M. Thoennessen

doi:10.1103/PhysRevC.92.034316

Unbound excited states of the N=16 closed shell nucleus O 24

W. F. Rogers, S. Garrett, A. Grovom, R. E. Anthony, A. Aulie, A. Barker, T. Baumann, J. J. Brett, J. Brown, G. Christian, P. A. Deyoung, J. E. Finck, N. Frank, A. Hamann, R. A. Haring-Kaye, J. Hinnefeld, A. R. Howe, N. T. Islam, M. D. Jones, A. N. KucheraJ. Kwiatkowski, E. M. Lunderberg, B. Luther, D. A. Meyer, S. Mosby, A. Palmisano, R. Parkhurst, A. Peters, J. Smith, J. Snyder, A. Spyrou, S. L. Stephenson, M. Strongman, B. Sutherland, N. E. Taylor, M. Thoennessen

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Abstract

Two low-lying neutron-unbound excited states of O24, populated by proton-knockout reactions on F26, have been measured using the MoNA and LISA arrays in combination with the Sweeper Magnet at the Coupled Cyclotron Facility at the NSCL using invariant mass spectroscopy. The current measurement confirms the separate identity of two states with decay energies 0.51(5) MeV and 1.20(7) MeV, and provides support for theoretical model calculations, which predict a 2+ first excited state and a 1+ higher-energy state. The measured excitation energies for these states, 4.70(15) MeV for the 2+ level and 5.39(16) MeV for the 1+ level, are consistent with previous lower-resolution measurements, and are compared with five recent model predictions.

Original language	English (US)
Article number	034316
Journal	Physical Review C - Nuclear Physics
Volume	92
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.92.034316
State	Published - Sep 16 2015
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevC.92.034316

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Rogers, W. F., Garrett, S., Grovom, A., Anthony, R. E., Aulie, A., Barker, A., Baumann, T., Brett, J. J., Brown, J., Christian, G., Deyoung, P. A., Finck, J. E., Frank, N., Hamann, A., Haring-Kaye, R. A., Hinnefeld, J., Howe, A. R., Islam, N. T., Jones, M. D., ... Thoennessen, M. (2015). Unbound excited states of the N=16 closed shell nucleus O 24. Physical Review C - Nuclear Physics, 92(3), Article 034316. https://doi.org/10.1103/PhysRevC.92.034316

@article{dbc161952273443da7386609ddfffac9,

title = "Unbound excited states of the N=16 closed shell nucleus O 24",

abstract = "Two low-lying neutron-unbound excited states of O24, populated by proton-knockout reactions on F26, have been measured using the MoNA and LISA arrays in combination with the Sweeper Magnet at the Coupled Cyclotron Facility at the NSCL using invariant mass spectroscopy. The current measurement confirms the separate identity of two states with decay energies 0.51(5) MeV and 1.20(7) MeV, and provides support for theoretical model calculations, which predict a 2+ first excited state and a 1+ higher-energy state. The measured excitation energies for these states, 4.70(15) MeV for the 2+ level and 5.39(16) MeV for the 1+ level, are consistent with previous lower-resolution measurements, and are compared with five recent model predictions.",

author = "Rogers, {W. F.} and S. Garrett and A. Grovom and Anthony, {R. E.} and A. Aulie and A. Barker and T. Baumann and Brett, {J. J.} and J. Brown and G. Christian and Deyoung, {P. A.} and Finck, {J. E.} and N. Frank and A. Hamann and Haring-Kaye, {R. A.} and J. Hinnefeld and Howe, {A. R.} and Islam, {N. T.} and Jones, {M. D.} and Kuchera, {A. N.} and J. Kwiatkowski and Lunderberg, {E. M.} and B. Luther and Meyer, {D. A.} and S. Mosby and A. Palmisano and R. Parkhurst and A. Peters and J. Smith and J. Snyder and A. Spyrou and Stephenson, {S. L.} and M. Strongman and B. Sutherland and Taylor, {N. E.} and M. Thoennessen",

note = "Publisher Copyright: {\textcopyright} 2015 American Physical Society.",

year = "2015",

month = sep,

day = "16",

doi = "10.1103/PhysRevC.92.034316",

language = "English (US)",

volume = "92",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

number = "3",

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Rogers, WF, Garrett, S, Grovom, A, Anthony, RE, Aulie, A, Barker, A, Baumann, T, Brett, JJ, Brown, J, Christian, G, Deyoung, PA, Finck, JE, Frank, N, Hamann, A, Haring-Kaye, RA, Hinnefeld, J, Howe, AR, Islam, NT, Jones, MD, Kuchera, AN, Kwiatkowski, J, Lunderberg, EM, Luther, B, Meyer, DA, Mosby, S, Palmisano, A, Parkhurst, R, Peters, A, Smith, J, Snyder, J, Spyrou, A, Stephenson, SL, Strongman, M, Sutherland, B, Taylor, NE & Thoennessen, M 2015, 'Unbound excited states of the N=16 closed shell nucleus O 24', Physical Review C - Nuclear Physics, vol. 92, no. 3, 034316. https://doi.org/10.1103/PhysRevC.92.034316

TY - JOUR

T1 - Unbound excited states of the N=16 closed shell nucleus O 24

AU - Rogers, W. F.

AU - Garrett, S.

AU - Grovom, A.

AU - Anthony, R. E.

AU - Aulie, A.

AU - Barker, A.

AU - Baumann, T.

AU - Brett, J. J.

AU - Brown, J.

AU - Christian, G.

AU - Deyoung, P. A.

AU - Finck, J. E.

AU - Frank, N.

AU - Hamann, A.

AU - Haring-Kaye, R. A.

AU - Hinnefeld, J.

AU - Howe, A. R.

AU - Islam, N. T.

AU - Jones, M. D.

AU - Kuchera, A. N.

AU - Kwiatkowski, J.

AU - Lunderberg, E. M.

AU - Luther, B.

AU - Meyer, D. A.

AU - Mosby, S.

AU - Palmisano, A.

AU - Parkhurst, R.

AU - Peters, A.

AU - Smith, J.

AU - Snyder, J.

AU - Spyrou, A.

AU - Stephenson, S. L.

AU - Strongman, M.

AU - Sutherland, B.

AU - Taylor, N. E.

AU - Thoennessen, M.

PY - 2015/9/16

Y1 - 2015/9/16

N2 - Two low-lying neutron-unbound excited states of O24, populated by proton-knockout reactions on F26, have been measured using the MoNA and LISA arrays in combination with the Sweeper Magnet at the Coupled Cyclotron Facility at the NSCL using invariant mass spectroscopy. The current measurement confirms the separate identity of two states with decay energies 0.51(5) MeV and 1.20(7) MeV, and provides support for theoretical model calculations, which predict a 2+ first excited state and a 1+ higher-energy state. The measured excitation energies for these states, 4.70(15) MeV for the 2+ level and 5.39(16) MeV for the 1+ level, are consistent with previous lower-resolution measurements, and are compared with five recent model predictions.

AB - Two low-lying neutron-unbound excited states of O24, populated by proton-knockout reactions on F26, have been measured using the MoNA and LISA arrays in combination with the Sweeper Magnet at the Coupled Cyclotron Facility at the NSCL using invariant mass spectroscopy. The current measurement confirms the separate identity of two states with decay energies 0.51(5) MeV and 1.20(7) MeV, and provides support for theoretical model calculations, which predict a 2+ first excited state and a 1+ higher-energy state. The measured excitation energies for these states, 4.70(15) MeV for the 2+ level and 5.39(16) MeV for the 1+ level, are consistent with previous lower-resolution measurements, and are compared with five recent model predictions.

UR - http://www.scopus.com/inward/record.url?scp=84942155208&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84942155208&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.92.034316

DO - 10.1103/PhysRevC.92.034316

M3 - Article

AN - SCOPUS:84942155208

SN - 0556-2813

VL - 92

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 3

M1 - 034316

ER -

Unbound excited states of the N=16 closed shell nucleus O 24

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