Nuclear Fission: from more phenomenology and adjusted parameters to more fundamental theory and increased predictive power

Bulgac, Aurel; Jin, Shi; Magierski, Piotr; Roche, Kenneth; Schunck, Nicolas; Stetcu, Ionel; Simpson, E. C.; Simenel, C.; Cook, K. J.; Carter, I. P.

doi:10.1051/epjconf/201716300007

Title: Nuclear Fission: from more phenomenology and adjusted parameters to more fundamental theory and increased predictive power

Abstract

Two major recent developments in theory and computational resources created the favorable conditions for achieving a microscopic description of fission dynamics in classically allowed regions of the collective potential energy surface, almost eighty years after its discovery in 1939 by Hahn and Strassmann [1]. The first major development was in theory, the extension of the Time-Dependent Density Functional Theory (TDDFT) [2–5] to superfluid fermion systems [6]. The second development was in computing, the emergence of powerful enough supercomputers capable of solving the complex systems of equations describing the time evolution in three dimensions without any restrictions of hundreds of strongly interacting nucleons. Thus the conditions have been created to renounce phenomenological models and incomplete microscopic treatments with uncontrollable approximations and/or assumptions in the description of the complex dynamics of fission. Even though the available nuclear energy density functionals (NEDFs) are phenomenological still, their accuracy is improving steadily and the prospects of being able to perform calculations of the nuclear fission dynamics and to predict many properties of the fission fragments, otherwise not possible to extract from experiments.

Authors:

Bulgac, Aurel ^[1]; Jin, Shi ^[1]; Magierski, Piotr ^[2]; Roche, Kenneth ^[3]; Schunck, Nicolas ^[4]; Stetcu, Ionel ^[5]; Simpson, E. C. ^[6]; Simenel, C. ^[6]; Cook, K. J. ^[6]; Carter, I. P. ^[6]

Univ. of Washington, Seattle, WA (United States)
Warsaw Univ. of Technology (Poland); Univ. of Washington, Seattle, WA (United States)
Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Univ. of Washington, Seattle, WA (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Australian National Univ., Canberra, ACT (Australia)

Publication Date:: Wed Nov 22 00:00:00 EST 2017

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1544353

Grant/Contract Number:: FG02-97ER41014; AC52-07NA27344; AC05-00OR22725; AC02-05CH11231

Resource Type:: Accepted Manuscript

Journal Name:: EPJ Web of Conferences (Online)

Additional Journal Information:: Journal Name: EPJ Web of Conferences (Online); Journal Volume: 163; Journal ID: ISSN 2100-014X

Publisher:: EDP Sciences

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats


                    Bulgac, Aurel, Jin, Shi, Magierski, Piotr, Roche, Kenneth, Schunck, Nicolas, Stetcu, Ionel, Simpson, E. C., Simenel, C., Cook, K. J., and Carter, I. P. Nuclear Fission: from more phenomenology and adjusted parameters to more fundamental theory and increased predictive power.  United States: N. p., 2017. 
Web.  doi:10.1051/epjconf/201716300007.

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                    Bulgac, Aurel, Jin, Shi, Magierski, Piotr, Roche, Kenneth, Schunck, Nicolas, Stetcu, Ionel, Simpson, E. C., Simenel, C., Cook, K. J., & Carter, I. P. Nuclear Fission: from more phenomenology and adjusted parameters to more fundamental theory and increased predictive power.  United States.  https://doi.org/10.1051/epjconf/201716300007

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                    Bulgac, Aurel, Jin, Shi, Magierski, Piotr, Roche, Kenneth, Schunck, Nicolas, Stetcu, Ionel, Simpson, E. C., Simenel, C., Cook, K. J., and Carter, I. P. Wed .  
"Nuclear Fission: from more phenomenology and adjusted parameters to more fundamental theory and increased predictive power".  United States.  https://doi.org/10.1051/epjconf/201716300007.  https://www.osti.gov/servlets/purl/1544353.

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@article{osti_1544353,

  title        = {Nuclear Fission: from more phenomenology and adjusted parameters to more fundamental theory and increased predictive power},

  author       = {Bulgac, Aurel and Jin, Shi and Magierski, Piotr and Roche, Kenneth and Schunck, Nicolas and Stetcu, Ionel and Simpson, E. C. and Simenel, C. and Cook, K. J. and Carter, I. P.},

  abstractNote = {Two major recent developments in theory and computational resources created the favorable conditions for achieving a microscopic description of fission dynamics in classically allowed regions of the collective potential energy surface, almost eighty years after its discovery in 1939 by Hahn and Strassmann [1]. The first major development was in theory, the extension of the Time-Dependent Density Functional Theory (TDDFT) [2–5] to superfluid fermion systems [6]. The second development was in computing, the emergence of powerful enough supercomputers capable of solving the complex systems of equations describing the time evolution in three dimensions without any restrictions of hundreds of strongly interacting nucleons. Thus the conditions have been created to renounce phenomenological models and incomplete microscopic treatments with uncontrollable approximations and/or assumptions in the description of the complex dynamics of fission. Even though the available nuclear energy density functionals (NEDFs) are phenomenological still, their accuracy is improving steadily and the prospects of being able to perform calculations of the nuclear fission dynamics and to predict many properties of the fission fragments, otherwise not possible to extract from experiments.},

  doi          = {10.1051/epjconf/201716300007},

  journal      = {EPJ Web of Conferences (Online)},

  number       = ,

  volume       = 163,

  place        = {United States},

  year         = {Wed Nov 22 00:00:00 EST 2017},

  month        = {Wed Nov 22 00:00:00 EST 2017}

}

Copy to clipboard

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Works referencing / citing this record:

Microscopically-based energy density functionals for nuclei using the density matrix expansion: Full optimization and validation
text, January 2018

Perez, R. Navarro; Schunck, N.; Dyhdalo, A.
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journal, March 2020

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Frontiers in Physics, Vol. 8
DOI: 10.3389/fphy.2020.00063

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Title: Nuclear Fission: from more phenomenology and adjusted parameters to more fundamental theory and increased predictive power

Abstract

Citation Formats

Energy Density Functional Approach to Superfluid Nuclei journal, June 2003

Fluctuations in a time-dependent mean-field approach journal, March 1984

The Mechanism of Nuclear Fission journal, September 1939

Comment on “Spontaneous Fission: A Kinetic Approach” journal, November 1997

Renormalization of the Hartree-Fock-Bogoliubov Equations in the Case of a Zero Range Pairing Interaction journal, January 2002

Microscopic Phase-Space Exploration Modeling of Fm 258 Spontaneous Fission journal, April 2017

Fission dynamics within time-dependent Hartree-Fock: Deformation-induced fission journal, November 2015

On Closed Shells in Nuclei. II journal, June 1949

Spontaneous Fission of Uranium journal, July 1940

Disintegration of Heavy Nuclei journal, February 1939

Microscopic theory of nuclear fission: a review journal, October 2016

Inhomogeneous Electron Gas journal, November 1964

Disintegration of Uranium by Neutrons: a New Type of Nuclear Reaction journal, February 1939

Fission dynamics within time-dependent Hartree-Fock. II. Boost-induced fission journal, January 2016

Fission and Nuclear Shell Model journal, April 1950

The double-humped fission barrier journal, October 1980

Heavy-element fission barriers journal, June 2009

Observation of a Discrete-Line Superdeformed Band up to 60 ℏ in Dy 152 journal, August 1986

Induced Fission of Pu 240 within a Real-Time Microscopic Framework journal, March 2016

Funny Hills: The Shell-Correction Approach to Nuclear Shell Effects and Its Applications to the Fission Process journal, April 1972

Formation and dynamics of fission fragments journal, March 2014

The Ame2012 atomic mass evaluation journal, December 2012

A stochastic mean-field approach for nuclear dynamics journal, January 2008

Thermalization kinetics of light: From laser dynamics to equilibrium condensation of photons journal, July 2015

A Skyrme parametrization from subnuclear to neutron star densities Part II. Nuclei far from stabilities journal, May 1998

Nuclear Constitution and the Interpretation of Fission Phenomena journal, March 1953

On the "Magic Numbers" in Nuclear Structure journal, June 1949

The nuclear density of states in the space of nuclear shapes journal, September 1980

Self-Consistent Equations Including Exchange and Correlation Effects journal, November 1965

Time-Dependent Density Functional Theory and the Real-Time Dynamics of Fermi Superfluids journal, October 2013

The Ame2012 atomic mass evaluation journal, December 2012

Inhomogeneous Electron Gas journal, March 1973

Spontaneous fission of uranium journal, April 1993

Funny Hills: The Shell-Correction Approach to Nuclear Shell Effects and its Applications to the Fission Process text, January 1972

A Stochastic Mean-Field Approach For Nuclear Dynamics text, January 2007

Fission dynamics within time-dependent Hartree-Fock: deformation-induced fission text, January 2015

Microscopic Theory of Nuclear Fission: A Review text, January 2015

Microscopically-based energy density functionals for nuclei using the density matrix expansion: Full optimization and validation text, January 2018

Nuclear Fission Dynamics: Past, Present, Needs, and Future journal, March 2020

Energy Density Functional Approach to Superfluid Nuclei
journal, June 2003

Fluctuations in a time-dependent mean-field approach
journal, March 1984

The Mechanism of Nuclear Fission
journal, September 1939

Comment on “Spontaneous Fission: A Kinetic Approach”
journal, November 1997

Renormalization of the Hartree-Fock-Bogoliubov Equations in the Case of a Zero Range Pairing Interaction
journal, January 2002

Microscopic Phase-Space Exploration Modeling of ${}^{258}{Fm}$ Spontaneous Fission
journal, April 2017

Fission dynamics within time-dependent Hartree-Fock: Deformation-induced fission
journal, November 2015

On Closed Shells in Nuclei. II
journal, June 1949

Spontaneous Fission of Uranium
journal, July 1940

Disintegration of Heavy Nuclei
journal, February 1939

Microscopic theory of nuclear fission: a review
journal, October 2016

Inhomogeneous Electron Gas
journal, November 1964

Disintegration of Uranium by Neutrons: a New Type of Nuclear Reaction
journal, February 1939

Fission dynamics within time-dependent Hartree-Fock. II. Boost-induced fission
journal, January 2016

Fission and Nuclear Shell Model
journal, April 1950

The double-humped fission barrier
journal, October 1980

Heavy-element fission barriers
journal, June 2009

Observation of a Discrete-Line Superdeformed Band up to $60 ℏ$ in ${}^{152}{Dy}$
journal, August 1986

Induced Fission of ${}^{240}{Pu}$ within a Real-Time Microscopic Framework
journal, March 2016

Funny Hills: The Shell-Correction Approach to Nuclear Shell Effects and Its Applications to the Fission Process
journal, April 1972

Formation and dynamics of fission fragments
journal, March 2014

The Ame2012 atomic mass evaluation
journal, December 2012

A stochastic mean-field approach for nuclear dynamics
journal, January 2008

Thermalization kinetics of light: From laser dynamics to equilibrium condensation of photons
journal, July 2015

A Skyrme parametrization from subnuclear to neutron star densities Part II. Nuclei far from stabilities
journal, May 1998

Nuclear Constitution and the Interpretation of Fission Phenomena
journal, March 1953

On the "Magic Numbers" in Nuclear Structure
journal, June 1949

The nuclear density of states in the space of nuclear shapes
journal, September 1980

Self-Consistent Equations Including Exchange and Correlation Effects
journal, November 1965

Time-Dependent Density Functional Theory and the Real-Time Dynamics of Fermi Superfluids
journal, October 2013

The Ame2012 atomic mass evaluation
journal, December 2012

Inhomogeneous Electron Gas
journal, March 1973

Spontaneous fission of uranium
journal, April 1993

Funny Hills: The Shell-Correction Approach to Nuclear Shell Effects and its Applications to the Fission Process
text, January 1972

A Stochastic Mean-Field Approach For Nuclear Dynamics
text, January 2007

Fission dynamics within time-dependent Hartree-Fock: deformation-induced fission
text, January 2015

Microscopic Theory of Nuclear Fission: A Review
text, January 2015

Microscopically-based energy density functionals for nuclei using the density matrix expansion: Full optimization and validation
text, January 2018

Nuclear Fission Dynamics: Past, Present, Needs, and Future
journal, March 2020