Fission barriers at the end of the chart of the nuclides

Möller, Peter; Sierk, Arnold J.; Ichikawa, Takatoshi; Iwamoto, Akira; Mumpower, Matthew

doi:10.1103/PhysRevC.91.024310

Fission barriers at the end of the chart of the nuclides

Journal Article · Thu Feb 12 00:00:00 EST 2015 · Physical Review C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.91.024310· OSTI ID:1193680

Möller, Peter ^[1]; Sierk, Arnold J. ^[1]; Ichikawa, Takatoshi ^[2]; Iwamoto, Akira ^[3]; Mumpower, Matthew ^[4]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Kyoto Univ., Kyoto (Japan)
Japan Atomic Energy Agency (JAEA), Ibaraki (Japan)
Univ. of Notre Dame, Notre Dame, IN (United States)

We present calculated fission-barrier heights for 5239 nuclides for all nuclei between the proton and neutron drip lines with 171 ≤ A ≤ 330. The barriers are calculated in the macroscopic-microscopic finite-range liquid-drop (FRLDM) with a 2002 set of macroscopic-model parameters. The saddle-point energies are determined from potential-energy surfaces based on more than five million different shapes, defined by five deformation parameters in the three-quadratic-surface shape parametrization: elongation, neck diameter, left-fragment spheroidal deformation, right-fragment spheroidal deformation, and nascent-fragment mass asymmetry. The energy of the ground state is determined by calculating the lowest-energy configuration in both the Nilsson perturbed-spheroid (ϵ) and the spherical-harmonic (β) parametrizations, including axially asymmetric deformations. The lower of the two results (correcting for zero-point motion) is defined as the ground-state energy. The effect of axial asymmetry on the inner barrier peak is calculated in the (ϵ,γ) parametrization. We have earlier benchmarked our calculated barrier heights to experimentally extracted barrier parameters and found average agreement to about one MeV for known data across the nuclear chart. Here we do additional benchmarks and investigate the qualitative and, when possible, quantitative agreement and/or consistency with data on β-delayed fission, isotope generation along prompt-neutron-capture chains in nuclear-weapons tests, and superheavy-element stability. In addition these studies all indicate that the model is realistic at considerable distances in Z and N from the region of nuclei where its parameters were determined.

View Accepted Manuscript (DOE)

Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC52-06NA25396; FG02-06ER41407

OSTI ID:: 1193680

Alternate ID(s):: OSTI ID: 1180139

Report Number(s):: LA-UR--14-24999

Journal Information:: Physical Review C, Nuclear Physics, Journal Name: Physical Review C, Nuclear Physics Journal Issue: 2 Vol. 91; ISSN 0556-2813; ISSN PRVCAN

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Fission-barrier heights of neutron-deficient mercury nuclei Veselský, M.; Andreyev, A. N.; Antalic, S. Physical Review C, Vol. 86, Issue 2 https://doi.org/10.1103/physrevc.86.024308	journal	August 2012
Exploring the multihumped fission barrier of 238 U via sub-barrier photofission Csige, L.; Filipescu, D. M.; Glodariu, T. Physical Review C, Vol. 87, Issue 4 https://doi.org/10.1103/physrevc.87.044321	journal	April 2013
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Energy dependence of fission-fragment mass distributions from strongly damped shape evolution Randrup, J.; Möller, P. Physical Review C, Vol. 88, Issue 6 https://doi.org/10.1103/physrevc.88.064606	journal	December 2013
Fission of doubly even actinide nuclei induced by direct reactions Back, B. B.; Hansen, Ole; Britt, H. C. Physical Review C, Vol. 9, Issue 5 https://doi.org/10.1103/physrevc.9.1924	journal	May 1974
Brownian Shape Motion on Five-Dimensional Potential-Energy Surfaces:Nuclear Fission-Fragment Mass Distributions Randrup, Jørgen; Möller, Peter Physical Review Letters, Vol. 106, Issue 13 https://doi.org/10.1103/physrevlett.106.132503	journal	March 2011
New Spontaneous Fission Mode for 252 Cf : Indication of Hyperdeformed 1 4 4 , 1 4 5 , 1 4 6 Ba at Scission Ter-Akopian, G. M.; Hamilton, J. H.; Oganessian, Yu. Ts. Physical Review Letters, Vol. 77, Issue 1 https://doi.org/10.1103/physrevlett.77.32	journal	July 1996
Five-Dimensional Fission-Barrier Calculations from S e 70 to C f 252 Möller, Peter; Sierk, Arnold J.; Iwamoto, Akira Physical Review Letters, Vol. 92, Issue 7 https://doi.org/10.1103/physrevlett.92.072501	journal	February 2004
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Langevin model of low-energy fission Sierk, Arnold J. Physical Review C, Vol. 96, Issue 3 https://doi.org/10.1103/physrevc.96.034603	journal	September 2017
β -delayed fission of Am 230 Wilson, G. L.; Takeyama, M.; Andreyev, A. N. Physical Review C, Vol. 96, Issue 4 https://doi.org/10.1103/physrevc.96.044315	journal	October 2017
Fission properties of superheavy nuclei for r -process calculations Giuliani, Samuel A.; Martínez-Pinedo, Gabriel; Robledo, Luis M. Physical Review C, Vol. 97, Issue 3 https://doi.org/10.1103/physrevc.97.034323	journal	March 2018
Cluster radioactivity in superheavy nuclei Warda, M.; Zdeb, A.; Robledo, L. M. Physical Review C, Vol. 98, Issue 4 https://doi.org/10.1103/physrevc.98.041602	journal	October 2018
Colloquium : Superheavy elements: Oganesson and beyond Giuliani, S. A.; Matheson, Z.; Nazarewicz, W. Reviews of Modern Physics, Vol. 91, Issue 1 https://doi.org/10.1103/revmodphys.91.011001	journal	January 2019
Remarks on the fission barriers of super-heavy nuclei Hofmann, S.; Heinz, S.; Mann, R. The European Physical Journal A, Vol. 52, Issue 4 https://doi.org/10.1140/epja/i2016-16116-0	journal	April 2016
Review of even element super-heavy nuclei and search for element 120 Hofmann, S.; Heinz, S.; Mann, R. The European Physical Journal A, Vol. 52, Issue 6 https://doi.org/10.1140/epja/i2016-16180-4	journal	June 2016
Spontaneous fission properties of superheavy elements Heßberger, F. P. The European Physical Journal A, Vol. 53, Issue 4 https://doi.org/10.1140/epja/i2017-12260-3	journal	April 2017
The total kinetic energy release in the fast neutron-induced fission of 232Th King, Jonathan; Yanez, Ricardo; Loveland, Walter The European Physical Journal A, Vol. 53, Issue 12 https://doi.org/10.1140/epja/i2017-12436-9	journal	December 2017
Fission and Quasifission Toward the Superheavy Mass Region Vardaci, E.; Itkis, M. G.; Itkis, I. M. International Symposium on Exotic Nuclei EXON-2018 https://doi.org/10.1142/9789811209451_0037	conference	December 2019
β -delayed Fission in r -process Nucleosynthesis Mumpower, M. R.; Kawano, T.; Sprouse, T. M. The Astrophysical Journal, Vol. 869, Issue 1 https://doi.org/10.3847/1538-4357/aaeaca	journal	December 2018
Actinide Production in the Neutron-rich Ejecta of a Neutron Star Merger Holmbeck, Erika M.; Sprouse, Trevor M.; Mumpower, Matthew R. The Astrophysical Journal, Vol. 870, Issue 1 https://doi.org/10.3847/1538-4357/aaefef	journal	December 2018
Actinide-rich and Actinide-poor r -process-enhanced Metal-poor Stars Do Not Require Separate r -process Progenitors Holmbeck, Erika M.; Frebel, Anna; McLaughlin, G. C. The Astrophysical Journal, Vol. 881, Issue 1 https://doi.org/10.3847/1538-4357/ab2a01	journal	August 2019
Californium-254 and Kilonova Light Curves Zhu, Y.; Wollaeger, R. T.; Vassh, N. The Astrophysical Journal, Vol. 863, Issue 2 https://doi.org/10.3847/2041-8213/aad5de	journal	August 2018
Adiabatic fission barriers in superheavy nuclei Jachimowicz, P.; Kowal, M.; Skalski, J. arXiv https://doi.org/10.48550/arxiv.1606.04726	text	January 2016
Reverse engineering nuclear properties from rare earth abundances in the $r$ process Mumpower, M. R.; McLaughlin, G. C.; Surman, R. arXiv https://doi.org/10.48550/arxiv.1609.09858	text	January 2016
Fission properties of superheavy nuclei for r-process calculations Giuliani, Samuel A.; Martinez-Pinedo, Gabriel; Robledo, Luis M. arXiv https://doi.org/10.48550/arxiv.1704.00554	text	January 2017
Californium-254 and kilonova light curves Zhu, Y.; Wollaeger, R. T.; Vassh, N. arXiv https://doi.org/10.48550/arxiv.1806.09724	text	January 2018
Cluster Radioactivity in Super Heavy Nuclei Warda, M.; Zdeb, A.; Robledo, L. M. arXiv https://doi.org/10.48550/arxiv.1807.00342	text	January 2018
Using excitation-energy dependent fission yields to identify key fissioning nuclei in r-process nucleosynthesis Vassh, Nicole; Vogt, Ramona; Surman, Rebecca arXiv https://doi.org/10.48550/arxiv.1810.08133	text	January 2018
Actinide-rich and Actinide-poor $r$-Process Enhanced Metal-Poor Stars do not Require Separate $r$-Process Progenitors Holmbeck, Erika M.; Frebel, Anna; McLaughlin, G. C. arXiv https://doi.org/10.48550/arxiv.1904.02139	text	January 2019
Review Of Even Element Super-Heavy Nuclei And Search For Element 120 Hofmann, Sigurd; Heinz, S.; Grzywacz, R. Zenodo https://doi.org/10.5281/zenodo.897925	text	January 2016

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