Neutron-capture rates for explosive nucleosynthesis: the case of 68Ni(n, γ)69Ni
Abstract
Neutron-capture reactions play an important role in heavy element nucleosynthesis, since they are the driving force for the two processes that create the vast majority of the heavy elements. When a neutron capture occurs on a short-lived nucleus, it is extremely challenging to study the reaction directly and therefore the use of indirect techniques is essential. The present work reports on such an indirect measurement that provides strong constraints on the 68Ni(n,g)69Ni reaction rate. This is done by populating the compound nucleus 69Ni via the bdecay of 69Co and measuring the g-ray deexcitation of excited states in 69Ni. The b-Oslo method was used to extract the g-ray strength function and the nuclear level density. In addition the half-life of 69Co was extracted and found to be in agreement with previous literature values. Before the present results, the 68Ni(n,g)69Ni reaction was unconstrained and the purely theoretical reaction rate was highly uncertain. The new uncertainty on the reaction rate based on the present experiment (variation between upper and lower limit) is approximately a factor of 3. The commonly used reaction libraries JINA-REACLIB and BRUSLIB are in relatively good agreement with the experimental rate. The impact of the new rate on weak r-processmore »
- Authors:
-
- Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab.; Michigan State Univ., East Lansing, MI (United States). Dept. of Physics and Astronomy; Michigan State Univ., East Lansing, MI (United States). Joint Inst. for Nuclear Astrophysics
- Univ. of Oslo (Norway). Dept. of Physics
- Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab.; Michigan State Univ., East Lansing, MI (United States). Joint Inst. for Nuclear Astrophysics; Michigan State Univ., East Lansing, MI (United States). Dept. of Chemistry
- Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab.; Michigan State Univ., East Lansing, MI (United States). Joint Inst. for Nuclear Astrophysics
- Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab.
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab.; Michigan State Univ., East Lansing, MI (United States). Dept. of Chemistry
- Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab.; Michigan State Univ., East Lansing, MI (United States). Joint Inst. for Nuclear Astrophysics; Central Michigan Univ., Mount Pleasant, MI (United States). Dept. of Physics
- Univ. of Notre Dame, IN (United States). Dept. of Physics
- Publication Date:
- Research Org.:
- Michigan State Univ., East Lansing, MI (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1360889
- Alternate Identifier(s):
- OSTI ID: 1378525; OSTI ID: 1495686; OSTI ID: 1657664
- Report Number(s):
- LLNL-JRNL-705342
Journal ID: ISSN 0954-3899
- Grant/Contract Number:
- NA0003221; NA0000979; NA0002132; AC52-07NA27344; AC52-06NA25396; PHY 1102511; PHY 1430152; PHY 1350234
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Physics. G, Nuclear and Particle Physics
- Additional Journal Information:
- Journal Volume: 44; Journal Issue: 4; Journal ID: ISSN 0954-3899
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Citation Formats
Spyrou, Artemis, Larsen, Ann-Cecilie, Liddick, Sean N., Naqvi, Farheen, Crider, Benjamin, Dombos, Alexander C., Guttormsen, Magne, Bleuel, Darren, Couture, Aaron, Campo, Lucia Crespo, Lewis, Rebecca, Mosby, Shea, Mumpower, Matthew, Perdikakis, George, Prokop, Christopher J., Quinn, Stephen J., Renstrom, Theresa, Siem, Sunniva, and Surman, Rebecca. Neutron-capture rates for explosive nucleosynthesis: the case of 68Ni(n, γ)69Ni. United States: N. p., 2017.
Web. doi:10.1088/1361-6471/aa5ae7.
Spyrou, Artemis, Larsen, Ann-Cecilie, Liddick, Sean N., Naqvi, Farheen, Crider, Benjamin, Dombos, Alexander C., Guttormsen, Magne, Bleuel, Darren, Couture, Aaron, Campo, Lucia Crespo, Lewis, Rebecca, Mosby, Shea, Mumpower, Matthew, Perdikakis, George, Prokop, Christopher J., Quinn, Stephen J., Renstrom, Theresa, Siem, Sunniva, & Surman, Rebecca. Neutron-capture rates for explosive nucleosynthesis: the case of 68Ni(n, γ)69Ni. United States. https://doi.org/10.1088/1361-6471/aa5ae7
Spyrou, Artemis, Larsen, Ann-Cecilie, Liddick, Sean N., Naqvi, Farheen, Crider, Benjamin, Dombos, Alexander C., Guttormsen, Magne, Bleuel, Darren, Couture, Aaron, Campo, Lucia Crespo, Lewis, Rebecca, Mosby, Shea, Mumpower, Matthew, Perdikakis, George, Prokop, Christopher J., Quinn, Stephen J., Renstrom, Theresa, Siem, Sunniva, and Surman, Rebecca. Wed .
"Neutron-capture rates for explosive nucleosynthesis: the case of 68Ni(n, γ)69Ni". United States. https://doi.org/10.1088/1361-6471/aa5ae7. https://www.osti.gov/servlets/purl/1360889.
@article{osti_1360889,
title = {Neutron-capture rates for explosive nucleosynthesis: the case of 68Ni(n, γ)69Ni},
author = {Spyrou, Artemis and Larsen, Ann-Cecilie and Liddick, Sean N. and Naqvi, Farheen and Crider, Benjamin and Dombos, Alexander C. and Guttormsen, Magne and Bleuel, Darren and Couture, Aaron and Campo, Lucia Crespo and Lewis, Rebecca and Mosby, Shea and Mumpower, Matthew and Perdikakis, George and Prokop, Christopher J. and Quinn, Stephen J. and Renstrom, Theresa and Siem, Sunniva and Surman, Rebecca},
abstractNote = {Neutron-capture reactions play an important role in heavy element nucleosynthesis, since they are the driving force for the two processes that create the vast majority of the heavy elements. When a neutron capture occurs on a short-lived nucleus, it is extremely challenging to study the reaction directly and therefore the use of indirect techniques is essential. The present work reports on such an indirect measurement that provides strong constraints on the 68Ni(n,g)69Ni reaction rate. This is done by populating the compound nucleus 69Ni via the bdecay of 69Co and measuring the g-ray deexcitation of excited states in 69Ni. The b-Oslo method was used to extract the g-ray strength function and the nuclear level density. In addition the half-life of 69Co was extracted and found to be in agreement with previous literature values. Before the present results, the 68Ni(n,g)69Ni reaction was unconstrained and the purely theoretical reaction rate was highly uncertain. The new uncertainty on the reaction rate based on the present experiment (variation between upper and lower limit) is approximately a factor of 3. The commonly used reaction libraries JINA-REACLIB and BRUSLIB are in relatively good agreement with the experimental rate. The impact of the new rate on weak r-process calculations is discussed.},
doi = {10.1088/1361-6471/aa5ae7},
journal = {Journal of Physics. G, Nuclear and Particle Physics},
number = 4,
volume = 44,
place = {United States},
year = {Wed Feb 22 00:00:00 EST 2017},
month = {Wed Feb 22 00:00:00 EST 2017}
}
Free Publicly Available Full Text
Publisher's Version of Record
Other availability
Search WorldCat to find libraries that may hold this journal
Cited by: 16 works
Citation information provided by
Web of Science
Web of Science
Figures / Tables:
FIG. 1: (Color online) Theoretical neutron-capture reaction rate variations (ratio between maximum and minimum rates) around mass 70. The nucleus in each box represents the target nucleus. The black dots indicate nuclei which do not have a known mass listed in AME2012 [28]. Figure adapted from [29]. See text formore »
All figures and tables
(11 total)
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.
Works referenced in this record:
Synthesis of the Elements in Stars
journal, October 1957
- Burbidge, E. Margaret; Burbidge, G. R.; Fowler, William A.
- Reviews of Modern Physics, Vol. 29, Issue 4
Nuclear Reactions in Stars and Nucleogenesis
journal, June 1957
- Cameron, A. G. W.
- Publications of the Astronomical Society of the Pacific, Vol. 69
Observation of Gravitational Waves from a Binary Black Hole Merger
journal, February 2016
- Abbott, B. P.; Abbott, R.; Abbott, T. D.
- Physical Review Letters, Vol. 116, Issue 6
The process: Nuclear physics, stellar models, and observations
journal, April 2011
- Käppeler, F.; Gallino, R.; Bisterzo, S.
- Reviews of Modern Physics, Vol. 83, Issue 1
The r-process of stellar nucleosynthesis: Astrophysics and nuclear physics achievements and mysteries
journal, September 2007
- Arnould, M.; Goriely, S.; Takahashi, K.
- Physics Reports, Vol. 450, Issue 4-6
Neutron-Capture Elements in the Early Galaxy
journal, September 2008
- Sneden, Christopher; Cowan, John J.; Gallino, Roberto
- Annual Review of Astronomy and Astrophysics, Vol. 46, Issue 1
The p-process of stellar nucleosynthesis: astrophysics and nuclear physics status
journal, September 2003
- Arnould, M.; Goriely, S.
- Physics Reports, Vol. 384, Issue 1-2
Constraining the astrophysical origin of the p-nuclei through nuclear physics and meteoritic data
journal, May 2013
- Rauscher, T.; Dauphas, N.; Dillmann, I.
- Reports on Progress in Physics, Vol. 76, Issue 6
The r-process and neutrino-heated supernova ejecta
journal, September 1994
- Woosley, S. E.; Wilson, J. R.; Mathews, G. J.
- The Astrophysical Journal, Vol. 433
Neutrino Signal of Electron-Capture Supernovae from Core Collapse to Cooling
journal, June 2010
- Hüdepohl, L.; Müller, B.; Janka, H. -T.
- Physical Review Letters, Vol. 104, Issue 25
Protoneutron star evolution and the neutrino-driven wind in general relativistic neutrino radiation hydrodynamics simulations
journal, July 2010
- Fischer, T.; Whitehouse, S. C.; Mezzacappa, A.
- Astronomy and Astrophysics, Vol. 517
Charged-Current Weak Interaction Processes in Hot and Dense Matter and its Impact on the Spectra of Neutrinos Emitted from Protoneutron Star Cooling
journal, December 2012
- Martínez-Pinedo, G.; Fischer, T.; Lohs, A.
- Physical Review Letters, Vol. 109, Issue 25
PRODUCTION OF ALL THE r -PROCESS NUCLIDES IN THE DYNAMICAL EJECTA OF NEUTRON STAR MERGERS
journal, June 2014
- Wanajo, Shinya; Sekiguchi, Yuichiro; Nishimura, Nobuya
- The Astrophysical Journal, Vol. 789, Issue 2
Comprehensive nucleosynthesis analysis for ejecta of compact binary mergers
journal, February 2015
- Just, O.; Bauswein, A.; Pulpillo, R. Ardevol
- Monthly Notices of the Royal Astronomical Society, Vol. 448, Issue 1
Nuclear robustness of the process in neutron-star mergers
journal, November 2015
- Mendoza-Temis, Joel de Jesús; Wu, Meng-Ru; Langanke, Karlheinz
- Physical Review C, Vol. 92, Issue 5
Electromagnetic counterparts of compact object mergers powered by the radioactive decay of r-process nuclei: Transients from compact object mergers
journal, June 2010
- Metzger, B. D.; Martínez-Pinedo, G.; Darbha, S.
- Monthly Notices of the Royal Astronomical Society, Vol. 406, Issue 4
R-process enrichment from a single event in an ancient dwarf galaxy
journal, March 2016
- Ji, Alexander P.; Frebel, Anna; Chiti, Anirudh
- Nature, Vol. 531, Issue 7596
Sensitivity studies for the weak r process: neutron capture rates
journal, April 2014
- Surman, R.; Mumpower, M.; Sinclair, R.
- AIP Advances, Vol. 4, Issue 4
The impact of individual nuclear properties on -process nucleosynthesis
journal, January 2016
- Mumpower, M. R.; Surman, R.; McLaughlin, G. C.
- Progress in Particle and Nuclear Physics, Vol. 86
Impact of Nuclear Mass Uncertainties on the Process
journal, March 2016
- Martin, D.; Arcones, A.; Nazarewicz, W.
- Physical Review Letters, Vol. 116, Issue 12
Determining neutron capture cross sections via the surrogate reaction technique
journal, May 2007
- Forssén, C.; Dietrich, F. S.; Escher, J.
- Physical Review C, Vol. 75, Issue 5
(d,pγ) Reactions and the surrogate reaction technique
journal, August 2007
- Cizewski, J. A.; Hatarik, R.; Jones, K. L.
- Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 261, Issue 1-2
Compound-nuclear reaction cross sections from surrogate measurements
journal, March 2012
- Escher, Jutta E.; Burke, Jason T.; Dietrich, Frank S.
- Reviews of Modern Physics, Vol. 84, Issue 1
-ray strength function method and its application to
journal, December 2010
- Utsunomiya, H.; Goriely, S.; Akimune, H.
- Physical Review C, Vol. 82, Issue 6
The first generation of γ-rays from hot nuclei
journal, April 1987
- Guttormsen, M.; Ramsøy, T.; Rekstad, J.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 255, Issue 3
Extraction of level density and γ strength function from primary γ spectra
journal, June 2000
- Schiller, A.; Bergholt, L.; Guttormsen, M.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 447, Issue 3
Novel technique for Constraining -Process ( , ) Reaction Rates
journal, December 2014
- Spyrou, A.; Liddick, S. N.; Larsen, A. C.
- Physical Review Letters, Vol. 113, Issue 23
The Ame2012 atomic mass evaluation
journal, December 2012
- Wang, M.; Audi, G.; Wapstra, A. H.
- Chinese Physics C, Vol. 36, Issue 12
Experimental Neutron Capture Rate Constraint Far from Stability
journal, June 2016
- Liddick, S. N.; Spyrou, A.; Crider, B. P.
- Physical Review Letters, Vol. 116, Issue 24
The isovector imaginary neutron potential: A key ingredient for the r-process nucleosynthesis
journal, September 2007
- Goriely, S.; Delaroche, J. -P.
- Physics Letters B, Vol. 653, Issue 2-4
Temperature-dependent combinatorial level densities with the D1M Gogny force
journal, December 2012
- Hilaire, S.; Girod, M.; Goriely, S.
- Physical Review C, Vol. 86, Issue 6
Individual particle and collective aspects of the nuclear photoeffect
journal, August 1957
- Brink, D. M.
- Nuclear Physics, Vol. 4
Electric Dipole Ground-State Transition Width Strength Function and 7-Mev Photon Interactions
journal, April 1962
- Axel, Peter
- Physical Review, Vol. 126, Issue 2
Level density parameters for the back-shifted fermi gas model in the mass range 40 < A < 250
journal, December 1973
- Dilg, W.; Schantl, W.; Vonach, H.
- Nuclear Physics A, Vol. 217, Issue 2
A Composite Nuclear-Level Density Formula with Shell Corrections
journal, August 1965
- Gilbert, A.; Cameron, A. G. W.
- Canadian Journal of Physics, Vol. 43, Issue 8
Density of discrete levels in
journal, April 1993
- Ignatyuk, A. V.; Weil, J. L.; Raman, S.
- Physical Review C, Vol. 47, Issue 4
A Hartree–Fock Nuclear mass Table
journal, March 2001
- Goriely, S.; Tondeur, F.; Pearson, J. M.
- Atomic Data and Nuclear Data Tables, Vol. 77, Issue 2
Improved microscopic nuclear level densities within the Hartree-Fock-Bogoliubov plus combinatorial method
journal, December 2008
- Goriely, S.; Hilaire, S.; Koning, A. J.
- Physical Review C, Vol. 78, Issue 6
Test of gamma-ray strength functions in nuclear reaction model calculations
journal, May 1990
- Kopecky, J.; Uhl, M.
- Physical Review C, Vol. 41, Issue 5
Large-scale QRPA calculation of E1-strength and its impact on the neutron capture cross section
journal, July 2002
- Goriely, S.; Khan, E.
- Nuclear Physics A, Vol. 706, Issue 1-2
Microscopic HFB + QRPA predictions of dipole strength for astrophysics applications
journal, July 2004
- Goriely, S.; Khan, E.; Samyn, M.
- Nuclear Physics A, Vol. 739, Issue 3-4
Radiative neutron captures by neutron-rich nuclei and the r-process nucleosynthesis
journal, September 1998
- Goriely, S.
- Physics Letters B, Vol. 436, Issue 1-2
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
Discovery of neutron-rich Co and Fe isotopes in ( , f ): Yields and half-lives
journal, December 1991
- Bernas, M.; Armbruster, P.; Czajkowski, S.
- Physical Review Letters, Vol. 67, Issue 26
Magicity of the Semidouble-Closed-Shell Nucleus Probed by Gamow-Teller Decay of the Odd- Neighbors
journal, November 1999
- Mueller, W. F.; Bruyneel, B.; Franchoo, S.
- Physical Review Letters, Vol. 83, Issue 18
Beta decay half-lives of neutron rich Ti–Co isotopes around
journal, November 1999
- Sorlin, O.; Donzaud, C.; Axelsson, L.
- Nuclear Physics A, Vol. 660, Issue 1
-decay measurements for Mn nuclei and inference of collectivity for neutron-rich Fe isotopes
journal, May 2011
- Daugas, J. M.; Matea, I.; Delaroche, J. -P.
- Physical Review C, Vol. 83, Issue 5
SuN: Summing NaI(Tl) gamma-ray detector for capture reaction measurements
journal, March 2013
- Simon, A.; Quinn, S. J.; Spyrou, A.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 703
Strong Neutron- Competition above the Neutron Threshold in the Decay of
journal, September 2016
- Spyrou, A.; Liddick, S. N.; Naqvi, F.
- Physical Review Letters, Vol. 117, Issue 14
The unfolding of continuum γ-ray spectra
journal, June 1996
- Guttormsen, M.; Tveter, T. S.; Bergholt, L.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 374, Issue 3
-ray strength function and pygmy resonance in rare earth nuclei
journal, March 2001
- Voinov, A.; Guttormsen, M.; Melby, E.
- Physical Review C, Vol. 63, Issue 4
Analysis of possible systematic errors in the Oslo method
journal, March 2011
- Larsen, A. C.; Guttormsen, M.; Krtička, M.
- Physical Review C, Vol. 83, Issue 3
Geant4—a simulation toolkit
journal, July 2003
- Agostinelli, S.; Allison, J.; Amako, K.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 506, Issue 3
Geant4 developments and applications
journal, February 2006
- Allison, J.; Amako, K.; Apostolakis, J.
- IEEE Transactions on Nuclear Science, Vol. 53, Issue 1
Measurement of the Dipole Polarizability of the Unstable Neutron-Rich Nucleus
journal, December 2013
- Rossi, D. M.; Adrich, P.; Aksouh, F.
- Physical Review Letters, Vol. 111, Issue 24
Impact of phonon coupling on the photon strength function
journal, March 2015
- Achakovskiy, O.; Avdeenkov, A.; Goriely, S.
- Physical Review C, Vol. 91, Issue 3
The jina Reaclib Database: its Recent Updates and Impact on Type-I X-Ray Bursts
journal, June 2010
- Cyburt, Richard H.; Amthor, A. Matthew; Ferguson, Ryan
- The Astrophysical Journal Supplement Series, Vol. 189, Issue 1
Astrophysical Reaction Rates From Statistical Model Calculations
journal, May 2000
- Rauscher, Thomas; Thielemann, Friedrich-Karl
- Atomic Data and Nuclear Data Tables, Vol. 75, Issue 1-2
Microscopic calculation of the symmetry and Coulomb components of the complex optical-model potential
journal, January 1977
- Jeukenne, J. -P.; Lejeune, A.; Mahaux, C.
- Physical Review C, Vol. 15, Issue 1
Local and global nucleon optical models from 1 keV to 200 MeV
journal, January 2003
- Koning, A. J.; Delaroche, J. P.
- Nuclear Physics A, Vol. 713, Issue 3-4
r -Process Nucleosynthesis in Hot Accretion Disk Flows from Black Hole-Neutron Star Mergers
journal, May 2008
- Surman, R.; McLaughlin, G. C.; Ruffert, M.
- The Astrophysical Journal, Vol. 679, Issue 2
Works referencing / citing this record:
Reference database for photon strength functions
journal, October 2019
- Goriely, S.; Dimitriou, P.; Wiedeking, M.
- The European Physical Journal A, Vol. 55, Issue 10
Consolidating the concept of low-energy magnetic dipole decay radiation
text, January 2018
- Midtbø, J. E.; Larsen, A. C.; Renstrøm, T.
- arXiv
Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.