New portal to the O15(α,γ)Ne19 resonance triggering CNO-cycle breakout

Wrede, C.; Glassman, B. E.; Pérez-Loureiro, D.; Allen, J. M.; Bardayan, D. W.; Bennett, M. B.; Brown, B. A.; Chipps, Kelly A.; Febbraro, Michael T.; Fry, C.; Hall, M. R.; Hall, O.; Liddick, S. N.; O'Malley, P.; Ong, W. -J.; Pain, Steven D.; Schwartz, S. B.; Shidling, P.; Sims, H.; Thompson, Paul James; Zhang, H.

doi:10.1103/PhysRevC.96.032801

Title: New portal to the ${}^{15}O (α, γ) {}^{19}{Ne}$ resonance triggering CNO-cycle breakout

Abstract

The ¹⁵O(α,γ)¹⁹Ne reaction is expected to trigger the initial path for breakout from the CNO hydrogen-burning cycles to the rapid proton capture (rp) process in type I x-ray bursts on accreting neutron stars. The thermonuclear reaction rate has a major impact on models of type I x-ray burst observables and it depends on the small α-particle branching ratio, Γ_α/Γ, of the 4.03 MeV state in ¹⁹Ne. Attempts to measure Γ_α/Γ by populating the 4.03 MeV state using nuclear reactions have only led to strong upper limits. In the present work, we report the first experimental evidence that the 4.03 MeV ¹⁹Ne state is populated in ²⁰Mg β-delayed proton emission. Furthermore this new channel has the potential to provide the necessary sensitivity to detect a finite value of Γ_α/Γ.

Authors:

Wrede, C. ^[1]; Glassman, B. E. ^[1]; Pérez-Loureiro, D. ^[1]; Allen, J. M. ^[2]; Bardayan, D. W. ^[2]; Bennett, M. B. ^[1]; Brown, B. A. ^[1];

^[3];

^[3]; Fry, C. ^[1]; Hall, M. R. ^[2]; Hall, O. ^[2]; Liddick, S. N. ^[1]; O'Malley, P. ^[2]; Ong, W. -J. ^[1];

^[4]; Schwartz, S. B. ^[1]; Shidling, P. ^[5]; Sims, H. ^[6]; Thompson, Paul James ^[3] more »

Michigan State Univ., East Lansing, MI (United States)
Univ. of Notre Dame, Notre Dame, IN (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Texas A & M Univ., College Station, TX (United States)
Univ. of Surrey, Guildford (United Kingdom)

Publication Date:: Fri Sep 29 00:00:00 EDT 2017

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1513412

Alternate Identifier(s):: OSTI ID: 1395605

Grant/Contract Number:: AC05-00OR22725; SC0016052; NA0003221; NA0000979

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review C

Additional Journal Information:: Journal Volume: 96; 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; 79 ASTRONOMY AND ASTROPHYSICS

Citation Formats


                    Wrede, C., Glassman, B. E., Pérez-Loureiro, D., Allen, J. M., Bardayan, D. W., Bennett, M. B., Brown, B. A., Chipps, Kelly A., Febbraro, Michael T., Fry, C., Hall, M. R., Hall, O., Liddick, S. N., O'Malley, P., Ong, W. -J., Pain, Steven D., Schwartz, S. B., Shidling, P., Sims, H., Thompson, Paul James, and Zhang, H. New portal to the O15(α,γ)Ne19 resonance triggering CNO-cycle breakout.  United States: N. p., 2017. 
Web.  doi:10.1103/PhysRevC.96.032801.

Copy to clipboard


                    Wrede, C., Glassman, B. E., Pérez-Loureiro, D., Allen, J. M., Bardayan, D. W., Bennett, M. B., Brown, B. A., Chipps, Kelly A., Febbraro, Michael T., Fry, C., Hall, M. R., Hall, O., Liddick, S. N., O'Malley, P., Ong, W. -J., Pain, Steven D., Schwartz, S. B., Shidling, P., Sims, H., Thompson, Paul James, & Zhang, H. New portal to the O15(α,γ)Ne19 resonance triggering CNO-cycle breakout.  United States.  https://doi.org/10.1103/PhysRevC.96.032801

Copy to clipboard


                    Wrede, C., Glassman, B. E., Pérez-Loureiro, D., Allen, J. M., Bardayan, D. W., Bennett, M. B., Brown, B. A., Chipps, Kelly A., Febbraro, Michael T., Fry, C., Hall, M. R., Hall, O., Liddick, S. N., O'Malley, P., Ong, W. -J., Pain, Steven D., Schwartz, S. B., Shidling, P., Sims, H., Thompson, Paul James, and Zhang, H. Fri .  
"New portal to the O15(α,γ)Ne19 resonance triggering CNO-cycle breakout".  United States.  https://doi.org/10.1103/PhysRevC.96.032801.  https://www.osti.gov/servlets/purl/1513412.

Copy to clipboard


                    
@article{osti_1513412,

  title        = {New portal to the O15(α,γ)Ne19 resonance triggering CNO-cycle breakout},

  author       = {Wrede, C. and Glassman, B. E. and Pérez-Loureiro, D. and Allen, J. M. and Bardayan, D. W. and Bennett, M. B. and Brown, B. A. and Chipps, Kelly A. and Febbraro, Michael T. and Fry, C. and Hall, M. R. and Hall, O. and Liddick, S. N. and O'Malley, P. and Ong, W. -J. and Pain, Steven D. and Schwartz, S. B. and Shidling, P. and Sims, H. and Thompson, Paul James and Zhang, H.},

  abstractNote = {The 15O(α,γ)19Ne reaction is expected to trigger the initial path for breakout from the CNO hydrogen-burning cycles to the rapid proton capture (rp) process in type I x-ray bursts on accreting neutron stars. The thermonuclear reaction rate has a major impact on models of type I x-ray burst observables and it depends on the small α-particle branching ratio, Γα/Γ, of the 4.03 MeV state in 19Ne. Attempts to measure Γα/Γ by populating the 4.03 MeV state using nuclear reactions have only led to strong upper limits. In the present work, we report the first experimental evidence that the 4.03 MeV 19Ne state is populated in 20Mg β-delayed proton emission. Furthermore this new channel has the potential to provide the necessary sensitivity to detect a finite value of Γα/Γ.},

  doi          = {10.1103/PhysRevC.96.032801},

  journal      = {Physical Review C},

  number       = 3,

  volume       = 96,

  place        = {United States},

  year         = {Fri Sep 29 00:00:00 EDT 2017},

  month        = {Fri Sep 29 00:00:00 EDT 2017}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (Publisher)

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.1103/PhysRevC.96.032801

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 9 works

Citation information provided by
Web of Science

Figures / Tables:

Figure 1: Simplified ²⁰Mg ($T$_1/2 = 91.4 ms, $Q$_EC = 10627 keV [3,17,18]) $β$ decay scheme focusing on the transitions relevant to the present work (blue online). Energies are shown in units of keV. The proton separation energy of ²⁰Na is 2190 keV and the $α$-particle separation energy of ¹⁹Nemore »

All figures and tables (3 total)

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

The ¹⁵ O(α,γ) ¹⁹ Ne Reaction Rate and the Stability of Thermonuclear Burning on Accreting Neutron Stars
journal, August 2007

Fisker, Jacob Lund; Tan, Wanpeng; Gorres, Joachim
The Astrophysical Journal, Vol. 665, Issue 1
DOI: 10.1086/519517

Revalidation of the isobaric multiplet mass equation for the $A = 20$ quintet
journal, October 2015

Glassman, B. E.; Pérez-Loureiro, D.; Wrede, C.
Physical Review C, Vol. 92, Issue 4
DOI: 10.1103/PhysRevC.92.042501

Break-out reactions from the CNO cycles
journal, January 1999

Wiescher, M.; Görres, J.; Schatz, H.
Journal of Physics G: Nuclear and Particle Physics, Vol. 25, Issue 6
DOI: 10.1088/0954-3899/25/6/201

Isobaric multiplet mass equation in the $A = 31, T = 3 / 2$ quartets
journal, June 2016

Bennett, M. B.; Wrede, C.; Brown, B. A.
Physical Review C, Vol. 93, Issue 6
DOI: 10.1103/PhysRevC.93.064310

Isospin Mixing Reveals ${}^{30}P (p, γ) {}^{31}S$ Resonance Influencing Nova Nucleosynthesis
journal, March 2016

Bennett, M. B.; Wrede, C.; Brown, B. A.
Physical Review Letters, Vol. 116, Issue 10
DOI: 10.1103/PhysRevLett.116.102502

Resonant Rate for $^{15} O (α, γ)^{19} Ne$
journal, May 1995

Mao, Z. Q.; Fortune, H. T.; Lacaze, A. G.
Physical Review Letters, Vol. 74, Issue 19
DOI: 10.1103/PhysRevLett.74.3760

Nuclear Data Sheets for A = 208
journal, August 2007

Martin, M. J.
Nuclear Data Sheets, Vol. 108, Issue 8
DOI: 10.1016/j.nds.2007.07.001

Optimization of the National Superconducting Cyclotron Laboratory Digital Data Acquisition System for use with fast scintillator detectors
journal, August 2015

Prokop, C. J.; Liddick, S. N.; Larson, N. R.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 792
DOI: 10.1016/j.nima.2015.04.052

Energy levels of light nuclei, A = 20
journal, June 1998

Tilley, D. R.; Cheves, C. M.; Kelley, J. H.
Nuclear Physics A, Vol. 636, Issue 3
DOI: 10.1016/S0375-9474(98)00129-8

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

Tilley, D. R.; Weller, H. R.; Cheves, C. M.
Nuclear Physics A, Vol. 595, Issue 1
DOI: 10.1016/0375-9474(95)00338-1

Commissioning the A1900 projectile fragment separator
journal, May 2003

Morrissey, D. J.; Sherrill, B. M.; Steiner, M.
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 204
DOI: 10.1016/S0168-583X(02)01895-5

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

Cyburt, R. H.; Amthor, A. M.; Heger, A.
The Astrophysical Journal, Vol. 830, Issue 2
DOI: 10.3847/0004-637X/830/2/55

Thirty-two-fold segmented germanium detectors to identify γ-rays from intermediate-energy exotic beams
journal, July 2001

Mueller, W. F.; Church, J. A.; Glasmacher, T.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 466, Issue 3
DOI: 10.1016/S0168-9002(01)00257-1

Branching ratio $Γ_{α} / Γ_{γ}$ of the 4.033 MeV ${3 / 2}^{+}$ state in $^{19} Ne$
journal, June 2003

Rehm, K. E.; Wuosmaa, A. H.; Jiang, C. L.
Physical Review C, Vol. 67, Issue 6
DOI: 10.1103/PhysRevC.67.065809

Astrophysical rate of $^{15} O (α, γ)^{19} Ne$ via the $(p, t)$ reaction in inverse kinematics
journal, June 2003

Davids, B.; van den Berg, A. M.; Dendooven, P.
Physical Review C, Vol. 67, Issue 6
DOI: 10.1103/PhysRevC.67.065808

Classical-Nova Contribution to the Milky Way’s ${}^{26}{Al}$ Abundance: Exit Channel of the Key ${}^{25}{Al} (p, γ) {}^{26}{Si}$ Resonance
journal, December 2013

Bennett, M. B.; Wrede, C.; Chipps, K. A.
Physical Review Letters, Vol. 111, Issue 23
DOI: 10.1103/PhysRevLett.111.232503

Nuclear Data Sheets for A=40
journal, June 2004

Cameron, John A.; Singh, Balraj
Nuclear Data Sheets, Vol. 102, Issue 2
DOI: 10.1016/j.nds.2004.06.001

Doppler broadened γ-lines from exotic nuclei
journal, July 2003

Fynbo, H.
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 207, Issue 3
DOI: 10.1016/S0168-583X(03)00570-6

Beta-decay of 20Mg
journal, February 1995

Piechaczek, A.; Mohar, M. F.; Anne, R.
Nuclear Physics A, Vol. 584, Issue 3
DOI: 10.1016/0375-9474(94)00791-K

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

Davids, Barry; Cyburt, Richard H.; José, Jordi
The Astrophysical Journal, Vol. 735, Issue 1
DOI: 10.1088/0004-637X/735/1/40

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 $^{19} {Ne}^{*}$ (4.03 MeV)
journal, October 2006

Kanungo, R.; Alexander, T. K.; Andreyev, A. N.
Physical Review C, Vol. 74, Issue 4
DOI: 10.1103/PhysRevC.74.045803

$β$ -delayed $γ$ decay of ${}^{26}P$ : Possible evidence of a proton halo
journal, June 2016

Pérez-Loureiro, D.; Wrede, C.; Bennett, M. B.
Physical Review C, Vol. 93, Issue 6
DOI: 10.1103/PhysRevC.93.064320

Explosive hydrogen burning
journal, January 1981

Wallace, R. K.; Woosley, S. E.
The Astrophysical Journal Supplement Series, Vol. 45
DOI: 10.1086/190717

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

Tan, W. P.; Görres, J.; Daly, J.
Physical Review C, Vol. 72, Issue 4
DOI: 10.1103/PhysRevC.72.041302

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

Mythili, S.; Davids, B.; Alexander, T. K.
Physical Review C, Vol. 77, Issue 3
DOI: 10.1103/PhysRevC.77.035803

Toward precise $Q_{EC}$ values for the superallowed $0^{+} \to 0^{+}$ $β$ decays of $T = 2$ nuclides: The masses of ${}^{20}{Na}$ , ${}^{24}{Al}$ , ${}^{28}P$ , and ${}^{32}{Cl}$
journal, May 2010

Wrede, C.; Clark, J. A.; Deibel, C. M.
Physical Review C, Vol. 81, Issue 5
DOI: 10.1103/PhysRevC.81.055503

The Ame2012 atomic mass evaluation
journal, December 2012

Wang, M.; Audi, G.; Wapstra, A. H.
Chinese Physics C, Vol. 36, Issue 12
DOI: 10.1088/1674-1137/36/12/003

Beta-delayed proton emission from 20Mg
journal, October 2016

Lund, M. V.; Andreyev, A.; Borge, M. J. G.
The European Physical Journal A, Vol. 52, Issue 10
DOI: 10.1140/epja/i2016-16304-x

Observation of Doppler broadening in $β$ -delayed proton- $γ$ decay
journal, September 2015

Schwartz, S. B.; Wrede, C.; Bennett, M. B.
Physical Review C, Vol. 92, Issue 3
DOI: 10.1103/PhysRevC.92.031302

Breakdown of the Isobaric Multiplet Mass Equation for the $A = 20$ and 21 Multiplets
journal, August 2014

Gallant, A. T.; Brodeur, M.; Andreoiu, C.
Physical Review Letters, Vol. 113, Issue 8
DOI: 10.1103/PhysRevLett.113.082501

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

Tan, W. P.; Fisker, J. L.; Görres, J.
Physical Review Letters, Vol. 98, Issue 24
DOI: 10.1103/PhysRevLett.98.242503

Energy levels of light nuclei A = 16–17
journal, November 1993

Tilley, D. R.; Weller, H. R.; Cheves, C. M.
Nuclear Physics A, Vol. 564, Issue 1
DOI: 10.1016/0375-9474(93)90073-7

X-ray bursts
journal, September 1993

Lewin, Walter H. G.; Van Paradijs, Jan; Taam, Ronald E.
Space Science Reviews, Vol. 62, Issue 3-4
DOI: 10.1007/BF00196124

Works referencing / citing this record:

Nuclear physics of the outer layers of accreting neutron stars
journal, July 2018

Meisel, Zach; Deibel, Alex; Keek, Laurens
Journal of Physics G: Nuclear and Particle Physics, Vol. 45, Issue 9
DOI: 10.1088/1361-6471/aad171

Nuclear Physics of the Outer Layers of Accreting Neutron Stars
text, January 2018

Meisel, Zach; Deibel, Alex; Keek, Laurens
arXiv
DOI: 10.48550/arxiv.1807.01150

Figures / Tables found in this record:

Figure 1 (p. 11)

Figure 2 (p. 12)

Figure 3 (p. 13)

Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.

Similar Records in DOE PAGES and OSTI.GOV collections:

β-delayed γ decay of 20Mg and the ${}^{19}{Ne} {(p, γ)}^{20} Na$ breakout reaction in Type I X-ray bursts

Journal Article Glassman, B. E. ; Pérez-Loureiro, D. ; Wrede, C. ; ... - Physics Letters B

Certain astrophysical environments such as thermonuclear outbursts on accreting neutron stars (Type-I X-ray bursts) are hot enough to allow for breakout from the Hot CNO hydrogen burning cycles to the rapid proton capture (rp) process. An important breakout reaction sequence is ¹⁵O(α,γ)¹⁹Ne(p,γ)²⁰Na and the ¹⁹Ne(p,γ)²⁰Na reaction rate is expected to be dominated by a single resonance at 457 keV above the proton threshold in 20Na. The resonance strength and, hence, reaction rate depends strongly on whether this ²⁰Na state at an excitation energy of 2647 keV has spin and parity of 1⁺ or 3⁺. Previous ²⁰Mg (J^π = 0⁺)β⁺ decaymore »« less
Cited by 7
https://doi.org/10.1016/j.physletb.2018.01.041
New measurements of low-energy resonances in the ${}^{22}{Ne} (p, γ) {}^{23}{Na}$ reaction

Journal Article Kelly, K. J. ; Champagne, A. E. ; Downen, L. N. ; ... - Physical Review C

Tmore »« less
Cited by 21
https://doi.org/10.1103/PhysRevC.95.015806

Full Text Available
Observation of ${}^{15}N + α$ resonant structures in ${}^{19}F$ using the thick target in inverse kinematics scattering method

Journal Article La Cognata, M. ; Fisichella, M. ; Pietro Di, A. ; ... - Physical Review C

Tmore »« less
https://doi.org/10.1103/physrevc.99.034301

Full Text Available
Detailed study of the decay ${}^{31}{Cl} (β γ) {}^{31}S$

Journal Article Bennett, M. B. ; Wrede, C. ; Liddick, S. N. ; ... - Physical Review C

Background: ³¹Cl is a neutron-deficient isotope with a half-life of T_1/2 = 190 (1) ms. The nuclear structure of its daughter, ³¹S, is important for the determination of the thermonuclear ³⁰P(p,γ)³¹S reaction rate, which affects the final isotopic abundances of the ejecta from classical oxygen-neon novae. Purpose: Here, we aim to determine the β feedings, γ-decay branchings, and excitation energies of states populated in ³¹S and create a comprehensive decay scheme for comparison with predictions based on the shell model. Methods: Using a ³¹Cl rare istope beam implanted into a plastic scintillator and an array of high-purity Ge detectors, γmore »« less
Cited by 9
https://doi.org/10.1103/PhysRevC.97.065803

Full Text Available
Indirect study of the stellar ${}^{34}{Ar} (α, p) {}^{37}K$ reaction rate through ${}^{40}{Ca} (p, t) {}^{38}{Ca}$ reaction measurements

Journal Article Long, Alexander Makenzie ; Adachi, T. ; Beard, M. ; ... - Physical Review C

The ³⁴Ar(α,p) ³⁷K reaction is believed to be one of the last in a sequence of (α,p) and (p,γ) reactions within the T_z = -1 , sd-shell nuclei, known as the αp-process. This process is expected to influence the shape and rise times of luminosity curves coming from type I x-ray bursts (XRBs). With very little experimental information known on many of the reactions within the αp-process, stellar rates are calculated using a statistical model, such as Hauser-Feshbach. Questions on the applicability of a Hauser-Feshbach model for the ³⁴Ar (α,p) ³⁷K reaction arise due to level density considerations in themore »« less
Cited by 11
https://doi.org/10.1103/PhysRevC.95.055803

Full Text Available

Similar Records

Title: New portal to the O 15 ( α , γ ) Ne 19 resonance triggering CNO-cycle breakout

Abstract

Citation Formats

Figures / Tables:

The 15 O(α,γ) 19 Ne Reaction Rate and the Stability of Thermonuclear Burning on Accreting Neutron Stars journal, August 2007

Revalidation of the isobaric multiplet mass equation for the A = 20 quintet journal, October 2015

Break-out reactions from the CNO cycles journal, January 1999

Isobaric multiplet mass equation in the A = 31 , T = 3 / 2 quartets journal, June 2016

Isospin Mixing Reveals P 30 ( p , γ ) S 31 Resonance Influencing Nova Nucleosynthesis journal, March 2016

Resonant Rate for 15 O ( α , γ ) 19 Ne journal, May 1995

Nuclear Data Sheets for A = 208 journal, August 2007

Optimization of the National Superconducting Cyclotron Laboratory Digital Data Acquisition System for use with fast scintillator detectors journal, August 2015

Energy levels of light nuclei, A = 20 journal, June 1998

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

Commissioning the A1900 projectile fragment separator journal, May 2003

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

Thirty-two-fold segmented germanium detectors to identify γ-rays from intermediate-energy exotic beams journal, July 2001

Branching ratio Γ α / Γ γ of the 4.033 MeV 3 / 2 + state in 19 Ne journal, June 2003

Astrophysical rate of 15 O ( α , γ ) 19 Ne via the ( p , t ) reaction in inverse kinematics journal, June 2003

Classical-Nova Contribution to the Milky Way’s Al 26 Abundance: Exit Channel of the Key Al 25 ( p , γ ) Si 26 Resonance journal, December 2013

Nuclear Data Sheets for A=40 journal, June 2004

Doppler broadened γ-lines from exotic nuclei journal, July 2003

Beta-decay of 20Mg journal, February 1995

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

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

Lifetime of 19 Ne * (4.03 MeV) journal, October 2006

β -delayed γ decay of P 26 : Possible evidence of a proton halo journal, June 2016

Explosive hydrogen burning journal, January 1981

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

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

Toward precise Q EC values for the superallowed 0 + → 0 + β decays of T = 2 nuclides: The masses of Na 20 , Al 24 , P 28 , and Cl 32 journal, May 2010

The Ame2012 atomic mass evaluation journal, December 2012

Beta-delayed proton emission from 20Mg journal, October 2016

Observation of Doppler broadening in β -delayed proton- γ decay journal, September 2015

Breakdown of the Isobaric Multiplet Mass Equation for the A = 20 and 21 Multiplets journal, August 2014

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

Energy levels of light nuclei A = 16–17 journal, November 1993

X-ray bursts journal, September 1993

Nuclear physics of the outer layers of accreting neutron stars journal, July 2018

Nuclear Physics of the Outer Layers of Accreting Neutron Stars text, January 2018

Title: New portal to the ${}^{15}O (α, γ) {}^{19}{Ne}$ resonance triggering CNO-cycle breakout

The ¹⁵ O(α,γ) ¹⁹ Ne Reaction Rate and the Stability of Thermonuclear Burning on Accreting Neutron Stars
journal, August 2007

Revalidation of the isobaric multiplet mass equation for the $A = 20$ quintet
journal, October 2015

Break-out reactions from the CNO cycles
journal, January 1999

Isobaric multiplet mass equation in the $A = 31, T = 3 / 2$ quartets
journal, June 2016

Isospin Mixing Reveals ${}^{30}P (p, γ) {}^{31}S$ Resonance Influencing Nova Nucleosynthesis
journal, March 2016

Resonant Rate for $^{15} O (α, γ)^{19} Ne$
journal, May 1995

Nuclear Data Sheets for A = 208
journal, August 2007

Optimization of the National Superconducting Cyclotron Laboratory Digital Data Acquisition System for use with fast scintillator detectors
journal, August 2015

Energy levels of light nuclei, A = 20
journal, June 1998

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

Commissioning the A1900 projectile fragment separator
journal, May 2003

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

Thirty-two-fold segmented germanium detectors to identify γ-rays from intermediate-energy exotic beams
journal, July 2001

Branching ratio $Γ_{α} / Γ_{γ}$ of the 4.033 MeV ${3 / 2}^{+}$ state in $^{19} Ne$
journal, June 2003

Astrophysical rate of $^{15} O (α, γ)^{19} Ne$ via the $(p, t)$ reaction in inverse kinematics
journal, June 2003

Classical-Nova Contribution to the Milky Way’s ${}^{26}{Al}$ Abundance: Exit Channel of the Key ${}^{25}{Al} (p, γ) {}^{26}{Si}$ Resonance
journal, December 2013

Nuclear Data Sheets for A=40
journal, June 2004

Doppler broadened γ-lines from exotic nuclei
journal, July 2003

Beta-decay of 20Mg
journal, February 1995

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

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

Lifetime of $^{19} {Ne}^{*}$ (4.03 MeV)
journal, October 2006

$β$ -delayed $γ$ decay of ${}^{26}P$ : Possible evidence of a proton halo
journal, June 2016

Explosive hydrogen burning
journal, January 1981

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

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

Toward precise $Q_{EC}$ values for the superallowed $0^{+} \to 0^{+}$ $β$ decays of $T = 2$ nuclides: The masses of ${}^{20}{Na}$ , ${}^{24}{Al}$ , ${}^{28}P$ , and ${}^{32}{Cl}$
journal, May 2010

The Ame2012 atomic mass evaluation
journal, December 2012

Beta-delayed proton emission from 20Mg
journal, October 2016

Observation of Doppler broadening in $β$ -delayed proton- $γ$ decay
journal, September 2015

Breakdown of the Isobaric Multiplet Mass Equation for the $A = 20$ and 21 Multiplets
journal, August 2014

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

Energy levels of light nuclei A = 16–17
journal, November 1993

X-ray bursts
journal, September 1993

Nuclear physics of the outer layers of accreting neutron stars
journal, July 2018

Nuclear Physics of the Outer Layers of Accreting Neutron Stars
text, January 2018