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Title: New γ -ray transitions observed in Ne 19 with implications for the O 15 ( α , γ ) Ne 19 reaction rate

Abstract

The 15O(α,γ) 19Ne reaction is responsible for breakout from the hot CNO cycle in type I x-ray bursts. Understanding the properties of resonances between Ex=4 and 5 MeV in 19Ne is crucial in the calculation of this reaction rate. The spins and parities of these states are well known, with the exception of the 4.14- and 4.20-MeV states, which have adopted spin-parities of 9/2- and 7/2-, respectively. γ-ray transitions from these states were studied using triton-γ – γ coincidences from the 19F(3He,tγ) 19Ne reaction measured with the GODDESS (Gammasphere ORRUBA Dual Detectors for Experimental Structure Studies) at Argonne National Laboratory. The observed transitions from the 4.14- and 4.20-MeV states provide strong evidence that the Jπ values are actually 7/2- and 9/2-, respectively. These assignments are consistent with the values in the 19F mirror nucleus and in contrast to previously accepted assignments.

Authors:
 [1];  [1];  [2];  [2]; ORCiD logo [3];  [2];  [4];  [1];  [5];  [5];  [6];  [7];  [5];  [8];  [8]; ORCiD logo [3];  [2]; ORCiD logo [3];  [9];  [1] more »;  [5];  [7];  [8];  [1];  [10];  [6];  [6];  [5];  [7];  [7];  [1];  [11];  [7]; ORCiD logo [3];  [2];  [12];  [5] « less
  1. Univ. of Notre Dame, IN (United States). Dept. of Physics
  2. Rutgers Univ., New Brunswick, NJ (United States). Dept. of Physics and Astronomy
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division
  4. Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab.
  5. Argonne National Lab. (ANL), Argonne, IL (United States). Physics Division
  6. Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Physics and Astronomy
  7. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
  8. Sungkyunkwan Univ., Suwon (South Korea). Dept. of Physics
  9. Univ. of Notre Dame, IN (United States). Dept. of Physics; Univ. of Surrey, Guildford (United Kingdom). Dept. of Physics
  10. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Physics Division
  11. Sungkyunkwan Univ., Suwon (South Korea). Dept. of Physics; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
  12. Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Physics and Astronomy; Univ. of Massachusetts, Lowell, MA (United States). Dept. of Physics and Applied Physics
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1506778
Alternate Identifier(s):
OSTI ID: 1504532; OSTI ID: 1514273
Grant/Contract Number:  
AC05-00OR22725; NA002132; FG02-96ER40963; FG02-96ER40978; AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 99; Journal Issue: 3; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Hall, Matt R., Bardayan, D. W., Baugher, T., Lepailleur, Alexandre A., Pain, Steven D., Ratkiewicz, A., Ahn, S., Allen, J. M., Anderson, J. T., Ayangeakaa, A. D., Blackmon, J. C., Burcher, S., Carpenter, M. P., Cha, S. M., Chae, K. Y., Chipps, Kelly A., Cizewski, J. A., Febbraro, Michael T., Hall, Oscar, Hu, J., Jiang, C. L., Jones, K. L., Lee, E. J., O'Malley, P. D., Ota, S., Rasco, Bertis C., Santiago-Gonzalez, D., Seweryniak, D., Sims, H., Smith, K., Tan, W. P., Thompson, P., Thornsberry, C., Varner, Robert L., Walter, D., Wilson, G. L., and Zhu, S. New γ -ray transitions observed in Ne19 with implications for the O15(α,γ)Ne19 reaction rate. United States: N. p., 2019. Web. doi:10.1103/PhysRevC.99.035805.
Hall, Matt R., Bardayan, D. W., Baugher, T., Lepailleur, Alexandre A., Pain, Steven D., Ratkiewicz, A., Ahn, S., Allen, J. M., Anderson, J. T., Ayangeakaa, A. D., Blackmon, J. C., Burcher, S., Carpenter, M. P., Cha, S. M., Chae, K. Y., Chipps, Kelly A., Cizewski, J. A., Febbraro, Michael T., Hall, Oscar, Hu, J., Jiang, C. L., Jones, K. L., Lee, E. J., O'Malley, P. D., Ota, S., Rasco, Bertis C., Santiago-Gonzalez, D., Seweryniak, D., Sims, H., Smith, K., Tan, W. P., Thompson, P., Thornsberry, C., Varner, Robert L., Walter, D., Wilson, G. L., & Zhu, S. New γ -ray transitions observed in Ne19 with implications for the O15(α,γ)Ne19 reaction rate. United States. doi:10.1103/PhysRevC.99.035805.
Hall, Matt R., Bardayan, D. W., Baugher, T., Lepailleur, Alexandre A., Pain, Steven D., Ratkiewicz, A., Ahn, S., Allen, J. M., Anderson, J. T., Ayangeakaa, A. D., Blackmon, J. C., Burcher, S., Carpenter, M. P., Cha, S. M., Chae, K. Y., Chipps, Kelly A., Cizewski, J. A., Febbraro, Michael T., Hall, Oscar, Hu, J., Jiang, C. L., Jones, K. L., Lee, E. J., O'Malley, P. D., Ota, S., Rasco, Bertis C., Santiago-Gonzalez, D., Seweryniak, D., Sims, H., Smith, K., Tan, W. P., Thompson, P., Thornsberry, C., Varner, Robert L., Walter, D., Wilson, G. L., and Zhu, S. Fri . "New γ -ray transitions observed in Ne19 with implications for the O15(α,γ)Ne19 reaction rate". United States. doi:10.1103/PhysRevC.99.035805. https://www.osti.gov/servlets/purl/1506778.
@article{osti_1506778,
title = {New γ -ray transitions observed in Ne19 with implications for the O15(α,γ)Ne19 reaction rate},
author = {Hall, Matt R. and Bardayan, D. W. and Baugher, T. and Lepailleur, Alexandre A. and Pain, Steven D. and Ratkiewicz, A. and Ahn, S. and Allen, J. M. and Anderson, J. T. and Ayangeakaa, A. D. and Blackmon, J. C. and Burcher, S. and Carpenter, M. P. and Cha, S. M. and Chae, K. Y. and Chipps, Kelly A. and Cizewski, J. A. and Febbraro, Michael T. and Hall, Oscar and Hu, J. and Jiang, C. L. and Jones, K. L. and Lee, E. J. and O'Malley, P. D. and Ota, S. and Rasco, Bertis C. and Santiago-Gonzalez, D. and Seweryniak, D. and Sims, H. and Smith, K. and Tan, W. P. and Thompson, P. and Thornsberry, C. and Varner, Robert L. and Walter, D. and Wilson, G. L. and Zhu, S.},
abstractNote = {The 15O(α,γ) 19Ne reaction is responsible for breakout from the hot CNO cycle in type I x-ray bursts. Understanding the properties of resonances between Ex=4 and 5 MeV in 19Ne is crucial in the calculation of this reaction rate. The spins and parities of these states are well known, with the exception of the 4.14- and 4.20-MeV states, which have adopted spin-parities of 9/2- and 7/2-, respectively. γ-ray transitions from these states were studied using triton-γ – γ coincidences from the 19F(3He,tγ) 19Ne reaction measured with the GODDESS (Gammasphere ORRUBA Dual Detectors for Experimental Structure Studies) at Argonne National Laboratory. The observed transitions from the 4.14- and 4.20-MeV states provide strong evidence that the Jπ values are actually 7/2- and 9/2-, respectively. These assignments are consistent with the values in the 19F mirror nucleus and in contrast to previously accepted assignments.},
doi = {10.1103/PhysRevC.99.035805},
journal = {Physical Review C},
number = 3,
volume = 99,
place = {United States},
year = {2019},
month = {3}
}

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Works referenced in this record:

The Importance of 15 O(α,γ) 19 Ne to X‐Ray Bursts and Superbursts
journal, October 2006

  • Fisker, Jacob Lund; Gorres, Joachim; Wiescher, Michael
  • The Astrophysical Journal, Vol. 650, Issue 1
  • DOI: 10.1086/507083

Lifetime of the astrophysically important 4.03-MeV state in Ne 19
journal, October 2005


Study of the Reactions O 16 ( Li 6 , He 3 ) F 19 and O 16 ( Li 6 , t ) Ne 19 at E ( Li 6 ) = 24 MeV
journal, March 1972

  • Garrett, J. D.; Bingham, H. G.; Fortune, H. T.
  • Physical Review C, Vol. 5, Issue 3
  • DOI: 10.1103/PhysRevC.5.682

Lifetimes of states in Ne 19 above the O 15 + α breakup threshold
journal, March 2008


End Point of the rp Process on Accreting Neutron Stars
journal, April 2001


Development of a high solid-angle silicon detector array for measurement of transfer reactions in inverse kinematics
journal, August 2007

  • Pain, S. D.; Cizewski, J. A.; Hatarik, R.
  • Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 261, Issue 1-2
  • DOI: 10.1016/j.nimb.2007.04.289

Measurement of the decay branching ratios of the α -unbound states in Ne 19 and the O 15 ( α , γ ) reaction rate
journal, May 2009


Energy levels of light nuclei A = 18–19
journal, December 1995


Gamma decay in 19Ne
journal, October 1973


Coupling Gammasphere and ORRUBA
conference, January 2013

  • Ratkiewicz, A.; Pain, S. D.; Cizewski, J. A.
  • APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: Twenty-Second International Conference, AIP Conference Proceedings
  • DOI: 10.1063/1.4802376

Dependence of X-Ray Burst Models on Nuclear Reaction Rates
journal, October 2016


Direct Reaction Measurements Using GODDESS
journal, January 2017


Advances in instrumentation for nuclear astrophysics
journal, April 2014


γ-ray bursts from thermonuclear explosions on neutron stars
journal, September 1976

  • Woosley, S. E.; Taam, Ronald E.
  • Nature, Vol. 263, Issue 5573
  • DOI: 10.1038/263101a0

Spectroscopy of Ne 19 for the thermonuclear O 15 ( α , γ ) Ne 19 and F 18 ( p , α ) O 15 reaction rates
journal, November 2015


The GAMMASPHERE
journal, December 1990


O 15 ( α , γ ) Ne 19 Breakout Reaction and Impact on X-Ray Bursts
journal, June 2007


X-ray bursts and neutron-star thermonuclear flashes
journal, November 1977


THE INFLUENCE OF UNCERTAINTIES IN THE 15 O(α, γ) 19 Ne REACTION RATE ON MODELS OF TYPE I X-RAY BURSTS
journal, June 2011