New γ -ray transitions observed in Ne19 with implications for the O15(α,γ)Ne19 reaction rate

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.

doi:10.1103/PhysRevC.99.035805

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

Abstract

The O-15(alpha, gamma)(19) Ne reaction is responsible for breakout from the hot CNO cycle in type I x-ray bursts. Understanding the properties of resonances between E-x = 4 and 5 MeV in Ne-19 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. gamma-ray transitions from these states were studied using triton-gamma-gamma coincidences from the F-19(He-3, t gamma)(19) Ne 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 J(pi) values are actually 7/2(-) and 9/2(-), respectively. These assignments are consistent with the values in the F-19 mirror nucleus and in contrast to previously accepted assignments.

Authors:

Hall, Matt R. ^[1]; Bardayan, D. W. ^[1]; Baugher, T. ^[2]; Lepailleur, Alexandre A. ^[2];

^[3]; Ratkiewicz, A. ^[2]; Ahn, S. ^[4]; Allen, J. M. ^[1]; Anderson, J. T. ^[5]; Ayangeakaa, A. D. ^[5]; Blackmon, J. C. ^[6]; Burcher, S. ^[7]; Carpenter, M. P. ^[5]; Cha, S. M. ^[8]; Chae, K. Y. ^[8];

^[3]; Cizewski, J. A. ^[2];

^[3]; Hall, Oscar ^[9]; Hu, J. ^[1] more »

Univ. of Notre Dame, IN (United States). Dept. of Physics
Rutgers Univ., New Brunswick, NJ (United States). Dept. of Physics and Astronomy
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division
Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab.
Argonne National Lab. (ANL), Argonne, IL (United States). Physics Division
Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Physics and Astronomy
Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
Sungkyunkwan Univ., Suwon (South Korea). Dept. of Physics
Univ. of Notre Dame, IN (United States). Dept. of Physics; Univ. of Surrey, Guildford (United Kingdom). Dept. of Physics
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Physics Division
Sungkyunkwan Univ., Suwon (South Korea). Dept. of Physics; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
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:: Fri Mar 29 00:00:00 EDT 2019

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Argonne National Laboratory (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.

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                    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.  https://doi.org/10.1103/PhysRevC.99.035805

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                    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.  https://doi.org/10.1103/PhysRevC.99.035805.  https://www.osti.gov/servlets/purl/1506778.

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@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 O-15(alpha, gamma)(19) Ne reaction is responsible for breakout from the hot CNO cycle in type I x-ray bursts. Understanding the properties of resonances between E-x = 4 and 5 MeV in Ne-19 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. gamma-ray transitions from these states were studied using triton-gamma-gamma coincidences from the F-19(He-3, t gamma)(19) Ne 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 J(pi) values are actually 7/2(-) and 9/2(-), respectively. These assignments are consistent with the values in the F-19 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         = {Fri Mar 29 00:00:00 EDT 2019},

  month        = {Fri Mar 29 00:00:00 EDT 2019}

}

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Works referenced in this record:

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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

Citation Formats

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

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

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

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

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

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

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

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

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

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

Lifetimes of states in ${}^{19}{Ne}$ above the ${}^{15}O$ $+ α$ 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

Measurement of the decay branching ratios of the $α$ -unbound states in ${}^{19}{Ne}$ and the ${}^{15}O (α, γ)$ 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

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

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

The GAMMASPHERE
journal, December 1990

${}^{15}O (α, γ) {}^{19}{Ne}$ 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