Neutron-$$\gamma$$ competition for β-delayed neutron emission
Abstract
Here we present a coupled quasiparticle random phase approximation and Hauser-Feshbach (QRPA+HF) model for calculating delayed particle emission. This approach uses microscopic nuclear structure information, which starts with Gamow-Teller strength distributions in the daughter nucleus and then follows the statistical decay until the initial available excitation energy is exhausted. Explicitly included at each particle emission stage is γ-ray competition. We explore this model in the context of neutron emission of neutron-rich nuclei and find that neutron-γ competition can lead to both increases and decreases in neutron emission probabilities, depending on the system considered. Finally, a second consequence of this formalism is a prediction of more neutrons on average being emitted after β decay for nuclei near the neutron drip line compared to models that do not consider the statistical decay.
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC). Nuclear Physics (NP) (SC-26); USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1345932
- Alternate Identifier(s):
- OSTI ID: 1336861
- Report Number(s):
- LA-UR-16-25845
Journal ID: ISSN 2469-9985; TRN: US1701119
- Grant/Contract Number:
- AC52-06NA25396
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review C
- Additional Journal Information:
- Journal Volume: 94; Journal Issue: 6; Journal ID: ISSN 2469-9985
- Publisher:
- APS
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Atomic and Nuclear Physics; delayed neutron emission; neutron-gamma competition
Citation Formats
Mumpower, Matthew Ryan, Kawano, Toshihiko, and Moller, Peter. Neutron-$\gamma$ competition for β-delayed neutron emission. United States: N. p., 2016.
Web. doi:10.1103/PhysRevC.94.064317.
Mumpower, Matthew Ryan, Kawano, Toshihiko, & Moller, Peter. Neutron-$\gamma$ competition for β-delayed neutron emission. United States. https://doi.org/10.1103/PhysRevC.94.064317
Mumpower, Matthew Ryan, Kawano, Toshihiko, and Moller, Peter. Mon .
"Neutron-$\gamma$ competition for β-delayed neutron emission". United States. https://doi.org/10.1103/PhysRevC.94.064317. https://www.osti.gov/servlets/purl/1345932.
@article{osti_1345932,
title = {Neutron-$\gamma$ competition for β-delayed neutron emission},
author = {Mumpower, Matthew Ryan and Kawano, Toshihiko and Moller, Peter},
abstractNote = {Here we present a coupled quasiparticle random phase approximation and Hauser-Feshbach (QRPA+HF) model for calculating delayed particle emission. This approach uses microscopic nuclear structure information, which starts with Gamow-Teller strength distributions in the daughter nucleus and then follows the statistical decay until the initial available excitation energy is exhausted. Explicitly included at each particle emission stage is γ-ray competition. We explore this model in the context of neutron emission of neutron-rich nuclei and find that neutron-γ competition can lead to both increases and decreases in neutron emission probabilities, depending on the system considered. Finally, a second consequence of this formalism is a prediction of more neutrons on average being emitted after β decay for nuclei near the neutron drip line compared to models that do not consider the statistical decay.},
doi = {10.1103/PhysRevC.94.064317},
journal = {Physical Review C},
number = 6,
volume = 94,
place = {United States},
year = {Mon Dec 19 00:00:00 EST 2016},
month = {Mon Dec 19 00:00:00 EST 2016}
}
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Works referenced in this record:
First Measurement of Several -Delayed Neutron Emitting Isotopes Beyond
journal, June 2016
- Caballero-Folch, R.; Domingo-Pardo, C.; Agramunt, J.
- Physical Review Letters, Vol. 117, Issue 1
Statistical Hauser-Feshbach theory with width-fluctuation correction including direct reaction channels for neutron-induced reactions at low energies
journal, July 2016
- Kawano, T.; Capote, R.; Hilaire, S.
- Physical Review C, Vol. 94, Issue 1
Large-scale evaluation of -decay rates of -process nuclei with the inclusion of first-forbidden transitions
journal, February 2016
- Marketin, T.; Huther, L.; Martínez-Pinedo, G.
- Physical Review C, Vol. 93, Issue 2
Monte Carlo Simulation for Particle and γ-Ray Emissions in Statistical Hauser-Feshbach Model
journal, May 2010
- Kawano, Toshihiko; Talou, Patrick; Chadwick, Mark B.
- Journal of Nuclear Science and Technology, Vol. 47, Issue 5
-delayed multiple-neutron emission in the effective density model
journal, November 2014
- Miernik, K.
- Physical Review C, Vol. 90, Issue 5
The Paul trap: A radiofrequency-quadrupole ion trap for precision studies
journal, July 2012
- Scielzo, N. D.; Li, G.; Sternberg, M. G.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 681
Enhanced -Ray Emission from Neutron Unbound States Populated in Decay
journal, August 2015
- Tain, J. L.; Valencia, E.; Algora, A.
- Physical Review Letters, Vol. 115, Issue 6
New developments in the calculation of β-strength functions
journal, July 1990
- Möller, Peter; Randrup, Jørgen
- Nuclear Physics A, Vol. 514, 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
Calculation of delayed-neutron energy spectra in a quasiparticle random-phase approximation–Hauser-Feshbach model
journal, November 2008
- Kawano, T.; Möller, P.; Wilson, W. B.
- Physical Review C, Vol. 78, Issue 5
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
Further Observations on the Splitting of Uranium and Thorium
journal, March 1939
- Roberts, R. B.; Meyer, R. C.; Wang, P.
- Physical Review, Vol. 55, Issue 5
-decay properties for neutron-rich Kr–Tc isotopes from deformed -quasiparticle random-phase approximation calculations with realistic forces
journal, August 2013
- Fang, Dong-Liang; Brown, B. Alex; Suzuki, Toshio
- Physical Review C, Vol. 88, Issue 2
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
Nuclear Ground-State Masses and Deformations
journal, March 1995
- Moller, P.; Nix, J. R.; Myers, W. D.
- Atomic Data and Nuclear Data Tables, Vol. 59, Issue 2, p. 185-381
Large -Delayed One and Two Neutron Emission Rates in the Decay of
journal, September 2013
- Miernik, K.; Rykaczewski, K. P.; Gross, C. J.
- Physical Review Letters, Vol. 111, Issue 13
Calculation of Beta Decay Half-Lives and Delayed Neutron Branching Ratio of Fission Fragments with Skyrme-QRPA
journal, January 2016
- Minato, Futoshi
- EPJ Web of Conferences, Vol. 122
Global description of decay in even-even nuclei with the axially-deformed Skyrme finite-amplitude method
journal, January 2016
- Mustonen, M. T.; Engel, J.
- Physical Review C, Vol. 93, Issue 1
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
Nuclear Properties for Astrophysical and Radioactive-Ion-Beam Applications
journal, July 1997
- MÖLler, P.; Nix, J. R.; Kratz, K. -L.
- Atomic Data and Nuclear Data Tables, Vol. 66, Issue 2
The formation of the compound nucleus
journal, January 1956
- Weisskopf, V. F.
- Physica, Vol. 22, Issue 6-12
Coupled-channels Optical Model Analyses of Nucleon-induced Reactions for Medium and Heavy Nuclei in the Energy Region from 1 keV to 200 MeV
journal, June 2007
- Kunieda, Satoshi; Chiba, Satoshi; Shibata, Keiichi
- Journal of Nuclear Science and Technology, Vol. 44, Issue 6
New calculations of gross -decay properties for astrophysical applications: Speeding-up the classical r process
journal, May 2003
- Möller, Peter; Pfeiffer, Bernd; Kratz, Karl-Ludwig
- Physical Review C, Vol. 67, Issue 5
Improved predictions of nuclear reaction rates with the TALYS reaction code for astrophysical applications
journal, June 2008
- Goriely, S.; Hilaire, S.; Koning, A. J.
- Astronomy & Astrophysics, Vol. 487, Issue 2
Beta-decay of nuclei near the neutron shell N = 126
journal, October 2011
- Borzov, I. N.
- Physics of Atomic Nuclei, Vol. 74, Issue 10
Calculation of Gamow-Teller β-strength functions in the rubidium region in the RPA approximation with Nilsson-model wave functions
journal, April 1984
- Krumlinde, Joachim; Möller, Peter
- Nuclear Physics A, Vol. 417, Issue 3
Phenomenological Nuclear Level Densities using the KTUY05 Nuclear Mass Formula for Applications Off-Stability
journal, January 2006
- Kawano, Toshihiko; Chiba, Satoshi; Koura, Hiroyuki
- Journal of Nuclear Science and Technology, Vol. 43, Issue 1
Global description of β − decay in even-even nuclei with the axially-deformed Skyrme finite-amplitude method
text, January 2016
- ,
- The University of North Carolina at Chapel Hill University Libraries
Improved predictions of nuclear reaction rates with the TALYS reaction code for astrophysical applications
text, January 2008
- Goriely, S.; Hilaire, S.; Koning, A. J.
- arXiv
Formation Of The Rare Earth Peak: Gaining Insight Into Late-Time r-Process Dynamics
text, January 2011
- Mumpower, Matthew; McLaughlin, Gail; Surman, Rebecca
- arXiv
Nuclear Ground-State Masses and Deformations
text, January 1993
- Möller, P.; Nix, J. R.; Myers, W. D.
- arXiv
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- Plaß, Wolfgang R.; Dickel, Timo; Mardor, Israel
- Hyperfine Interactions, Vol. 240, Issue 1
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journal, February 2017
- Mumpower, M. R.; McLaughlin, G. C.; Surman, R.
- Journal of Physics G: Nuclear and Particle Physics, Vol. 44, Issue 3
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- Horowitz, C. J.; Arcones, A.; Côté, B.
- Journal of Physics G: Nuclear and Particle Physics, Vol. 46, Issue 8
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- Vassh, N.; Vogt, R.; Surman, R.
- Journal of Physics G: Nuclear and Particle Physics, Vol. 46, Issue 6
-decay properties of neutron-rich Ca, Ti, and Cr isotopes
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- Sarriguren, P.; Algora, A.; Kiss, G.
- Physical Review C, Vol. 98, Issue 2
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journal, May 2018
- Mardor, Israel; Aviv, Ofer; Avrigeanu, Marilena
- The European Physical Journal A, Vol. 54, Issue 5
The Origin of r -process Elements in the Milky Way
journal, March 2018
- Côté, Benoit; Fryer, Chris L.; Belczynski, Krzysztof
- The Astrophysical Journal, Vol. 855, Issue 2
β -delayed Fission in r -process Nucleosynthesis
journal, December 2018
- Mumpower, M. R.; Kawano, T.; Sprouse, T. M.
- The Astrophysical Journal, Vol. 869, Issue 1
Actinide Production in the Neutron-rich Ejecta of a Neutron Star Merger
journal, December 2018
- Holmbeck, Erika M.; Sprouse, Trevor M.; Mumpower, Matthew R.
- The Astrophysical Journal, Vol. 870, Issue 1
Probing the Production of Actinides under Different r-process Conditions
journal, July 2019
- Eichler, M.; Sayar, W.; Arcones, A.
- The Astrophysical Journal, Vol. 879, Issue 1
Gamma Rays from Kilonova: A Potential Probe of r -process Nucleosynthesis
journal, February 2020
- Korobkin, Oleg; Hungerford, Aimee M.; Fryer, Christopher L.
- The Astrophysical Journal, Vol. 889, Issue 2
Californium-254 and Kilonova Light Curves
journal, August 2018
- Zhu, Y.; Wollaeger, R. T.; Vassh, N.
- The Astrophysical Journal, Vol. 863, Issue 2
The science case of the FRS Ion Catcher for FAIR Phase-0
text, January 2019
- Plaß, Wolfgang R.; Dickel, Timo; Mardor, Israel
- GSI Helmholtzzentrum fuer Schwerionenforschung, GSI, Darmstadt
Reverse engineering nuclear properties from rare earth abundances in the $r$ process
text, January 2016
- Mumpower, M. R.; McLaughlin, G. C.; Surman, R.
- arXiv
Californium-254 and kilonova light curves
text, January 2018
- Zhu, Y.; Wollaeger, R. T.; Vassh, N.
- arXiv
Using excitation-energy dependent fission yields to identify key fissioning nuclei in r-process nucleosynthesis
text, January 2018
- Vassh, Nicole; Vogt, Ramona; Surman, Rebecca
- arXiv
Gamma-rays from kilonova: a potential probe of r-process nucleosynthesis
text, January 2019
- Korobkin, Oleg; Hungerford, Aimee M.; Fryer, Christopher L.
- arXiv