Quasifission Dynamics in Microscopic Theories

Godbey, Kyle; Umar, A. S.

doi:10.3389/fphy.2020.00040

Title: Quasifission Dynamics in Microscopic Theories

Abstract

In the search for superheavy elements quasifission reactions represent one of the reaction pathways that curtail the formation of an evaporation residue. In addition to its importance in these searches quasifission is also an interesting dynamic process that could assist our understanding of many-body dynamical shell effects and energy dissipation thus forming a gateway between deep-inelastic reactions and fission. This manuscript gives a summary of recent progress in microscopic calculations of quasifission employing time-dependent Hartree-Fock (TDHF) theory and its extensions.

Authors:: Godbey, Kyle; Umar, A. S.

Publication Date:: 2020-02-27

Research Org.:: Vanderbilt Univ., Nashville, TN (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Nuclear Physics (NP)

OSTI Identifier:: 1601905

Alternate Identifier(s):: OSTI ID: 1602191

Grant/Contract Number:: SC0013847

Resource Type:: Published Article

Journal Name:: Frontiers in Physics

Additional Journal Information:: Journal Name: Frontiers in Physics Journal Volume: 8; Journal ID: ISSN 2296-424X

Publisher:: Frontiers Research Foundation

Country of Publication:: Switzerland

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; time-dependent Hartree-Fock; quasifission; superheavy elements; multi-nucleon transfer; time- dependent random phase approximation

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                    Godbey, Kyle, and Umar, A. S. Quasifission Dynamics in Microscopic Theories.  Switzerland: N. p., 2020. 
Web.  doi:10.3389/fphy.2020.00040.

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                    Godbey, Kyle, & Umar, A. S. Quasifission Dynamics in Microscopic Theories.  Switzerland.  https://doi.org/10.3389/fphy.2020.00040

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                    Godbey, Kyle, and Umar, A. S. Thu .  
"Quasifission Dynamics in Microscopic Theories".  Switzerland.  https://doi.org/10.3389/fphy.2020.00040.

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@article{osti_1601905,

  title        = {Quasifission Dynamics in Microscopic Theories},

  author       = {Godbey, Kyle and Umar, A. S.},

  abstractNote = {In the search for superheavy elements quasifission reactions represent one of the reaction pathways that curtail the formation of an evaporation residue. In addition to its importance in these searches quasifission is also an interesting dynamic process that could assist our understanding of many-body dynamical shell effects and energy dissipation thus forming a gateway between deep-inelastic reactions and fission. This manuscript gives a summary of recent progress in microscopic calculations of quasifission employing time-dependent Hartree-Fock (TDHF) theory and its extensions.},

  doi          = {10.3389/fphy.2020.00040},

  journal      = {Frontiers in Physics},

  number       = ,

  volume       = 8,

  place        = {Switzerland},

  year         = {2020},

  month        = {2}

}

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Works referenced in this record:

Theoretical description of superheavy nuclei
journal, April 2002

Nazarewicz, W.; Bender, M.; Ćwiok, S.
Nuclear Physics A, Vol. 701, Issue 1-4
DOI: 10.1016/S0375-9474(01)01567-6

Microscopic approach of fission dynamics applied to fragment kinetic energy and mass distributions in ${}^{238}U$
journal, February 2005

Goutte, H.; Berger, J. F.; Casoli, P.
Physical Review C, Vol. 71, Issue 2
DOI: 10.1103/PhysRevC.71.024316

Dissipative dynamics in quasifission
journal, November 2014

Oberacker, V. E.; Umar, A. S.; Simenel, C.
Physical Review C, Vol. 90, Issue 5
DOI: 10.1103/PhysRevC.90.054605

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

Goddard, Philip; Stevenson, Paul; Rios, Arnau
Physical Review C, Vol. 92, Issue 5
DOI: 10.1103/PhysRevC.92.054610

Two-body dissipation effects on the synthesis of superheavy elements
journal, March 2016

Tohyama, M.; Umar, A. S.
Physical Review C, Vol. 93, Issue 3
DOI: 10.1103/PhysRevC.93.034607

On the mass distribution in Time-Dependent Hartree-Fock calculations of heavy-ion collisions
journal, December 1979

Dasso, C. H.; D�ssing, T.; Pauli, H. C.
Zeitschrift f�r Physik A: Atoms and Nuclei, Vol. 289, Issue 4
DOI: 10.1007/BF01409391

Recent developments in heavy-ion fusion reactions
journal, March 2014

Back, B. B.; Esbensen, H.; Jiang, C. L.
Reviews of Modern Physics, Vol. 86, Issue 1
DOI: 10.1103/RevModPhys.86.317

Quantal diffusion description of multinucleon transfers in heavy-ion collisions
journal, May 2018

Ayik, S.; Yilmaz, B.; Yilmaz, O.
Physical Review C, Vol. 97, Issue 5
DOI: 10.1103/PhysRevC.97.054618

Time-dependent Hartree-Fock calculations for multinucleon transfer and quasifission processes in the ${}^{64}{Ni} + {}^{238}U$ reaction
journal, May 2016

Sekizawa, Kazuyuki; Yabana, Kazuhiro
Physical Review C, Vol. 93, Issue 5
DOI: 10.1103/PhysRevC.93.054616

Interplay between Quantum Shells and Orientation in Quasifission
journal, October 2014

Wakhle, A.; Simenel, C.; Hinde, D. J.
Physical Review Letters, Vol. 113, Issue 18
DOI: 10.1103/PhysRevLett.113.182502

Deformed shell effects in Ca 48 + Bk 249 quasifission fragments
journal, August 2019

Godbey, K.; Umar, A. S.; Simenel, C.
Physical Review C, Vol. 100, Issue 2
DOI: 10.1103/PhysRevC.100.024610

Low-energy heavy-ion reactions and the Skyrme effective interaction
journal, January 2019

Stevenson, P. D.; Barton, M. C.
Progress in Particle and Nuclear Physics, Vol. 104
DOI: 10.1016/j.ppnp.2018.09.002

X-Ray Fluorescence from the Element with Atomic Number $Z = 120$
journal, March 2012

Frégeau, M. O.; Jacquet, D.; Morjean, M.
Physical Review Letters, Vol. 108, Issue 12
DOI: 10.1103/PhysRevLett.108.122701

Synthesis of the heaviest nuclei in cold fusion reactions
journal, December 2015

Münzenberg, G.; Morita, K.
Nuclear Physics A, Vol. 944
DOI: 10.1016/j.nuclphysa.2015.06.007

Investigation of the reaction 64Ni+238U being an option of synthesizing element 120
journal, March 2010

Kozulin, E. M.; Knyazheva, G. N.; Itkis, I. M.
Physics Letters B, Vol. 686, Issue 4-5
DOI: 10.1016/j.physletb.2010.02.041

Quasi-fission — The mass-drift mode in heavy-ion reactions
journal, July 1985

Tōke, J.; Bock, R.; Dai, G. X.
Nuclear Physics A, Vol. 440, Issue 2
DOI: 10.1016/0375-9474(85)90344-6

Review on the progress in nuclear fission—experimental methods and theoretical descriptions
journal, September 2018

Schmidt, Karl-Heinz; Jurado, Beatriz
Reports on Progress in Physics, Vol. 81, Issue 10
DOI: 10.1088/1361-6633/aacfa7

Transport properties of isospin asymmetric nuclear matter using the time-dependent Hartree-Fock method
journal, August 2017

Umar, A. S.; Simenel, C.; Ye, W.
Physical Review C, Vol. 96, Issue 2
DOI: 10.1103/PhysRevC.96.024625

Characteristics of quasifission products within the dinuclear system model
journal, September 2003

Adamian, G. G.; Antonenko, N. V.; Scheid, W.
Physical Review C, Vol. 68, Issue 3
DOI: 10.1103/PhysRevC.68.034601

Shape evolution and collective dynamics of quasifission in the time-dependent Hartree-Fock approach
journal, August 2015

Umar, A. S.; Oberacker, V. E.; Simenel, C.
Physical Review C, Vol. 92, Issue 2
DOI: 10.1103/PhysRevC.92.024621

Heavy-ion collisions and fission dynamics with the time-dependent Hartree–Fock theory and its extensions
journal, November 2018

Simenel, C.; Umar, A. S.
Progress in Particle and Nuclear Physics, Vol. 103
DOI: 10.1016/j.ppnp.2018.07.002

New inverse quasifission mechanism to produce neutron-rich transfermium nuclei
journal, April 2010

Kedziora, David J.; Simenel, Cédric
Physical Review C, Vol. 81, Issue 4
DOI: 10.1103/PhysRevC.81.044613

Exploring Zeptosecond Quantum Equilibration Dynamics: From Deep-Inelastic to Fusion-Fission Outcomes in ${}^{58}{Ni} + {}^{60}{Ni}$ Reactions
journal, January 2018

Williams, E.; Sekizawa, K.; Hinde, D. J.
Physical Review Letters, Vol. 120, Issue 2
DOI: 10.1103/PhysRevLett.120.022501

Synthesis of transactinide nuclei using radioactive beams
journal, July 2007

Loveland, W.
Physical Review C, Vol. 76, Issue 1
DOI: 10.1103/PhysRevC.76.014612

Evidence for the Role of Proton Shell Closure in Quasifission Reactions from X-Ray Fluorescence of Mass-Identified Fragments
journal, November 2017

Morjean, M.; Hinde, D. J.; Simenel, C.
Physical Review Letters, Vol. 119, Issue 22
DOI: 10.1103/PhysRevLett.119.222502

Probing sub-barrier fusion and extra-push by measuring fermium evaporation residues in different heavy ion reactions
journal, October 1984

G�ggeler, H.; Sikkeland, T.; Wirth, G.
Zeitschrift f�r Physik A Atoms and Nuclei, Vol. 316, Issue 3
DOI: 10.1007/BF01439902

Time-dependent Hartree-Fock plus Langevin approach for hot fusion reactions to synthesize the $Z = 120$ superheavy element
journal, May 2019

Sekizawa, K.; Hagino, K.
Physical Review C, Vol. 99, Issue 5
DOI: 10.1103/PhysRevC.99.051602

Modeling near-barrier collisions of heavy ions based on a Langevin-type approach
journal, August 2017

Karpov, A. V.; Saiko, V. V.
Physical Review C, Vol. 96, Issue 2
DOI: 10.1103/PhysRevC.96.024618

The conditions for the synthesis of heavy nuclei
journal, July 1991

Schmidt, K. -H; Morawek, W.
Reports on Progress in Physics, Vol. 54, Issue 7
DOI: 10.1088/0034-4885/54/7/002

Foreword
journal, December 2015

Düllmann, Christoph E.; Herzberg, Rolf-Dietmar; Nazarewicz, Witold
Nuclear Physics A, Vol. 944
DOI: 10.1016/j.nuclphysa.2015.11.004

Fission Barriers of Compound Superheavy Nuclei
journal, May 2009

Pei, J. C.; Nazarewicz, W.; Sheikh, J. A.
Physical Review Letters, Vol. 102, Issue 19
DOI: 10.1103/PhysRevLett.102.192501

Mapping quasifission characteristics and timescales in heavy element formation reactions
journal, November 2013

du Rietz, R.; Williams, E.; Hinde, D. J.
Physical Review C, Vol. 88, Issue 5
DOI: 10.1103/PhysRevC.88.054618

Particle Transfer Reactions with the Time-Dependent Hartree-Fock Theory Using a Particle Number Projection Technique
journal, November 2010

Simenel, Cédric
Physical Review Letters, Vol. 105, Issue 19
DOI: 10.1103/PhysRevLett.105.192701

Dynamical deformation effects in subbarrier fusion of ${}^{64}{Ni} + {}^{132}{Sn}$
journal, December 2006

Umar, A. S.; Oberacker, V. E.
Physical Review C, Vol. 74, Issue 6
DOI: 10.1103/PhysRevC.74.061601

Analysis of multinucleon transfer reactions with spherical and statically deformed nuclei using a Langevin-type approach
journal, January 2019

Saiko, V. V.; Karpov, A. V.
Physical Review C, Vol. 99, Issue 1
DOI: 10.1103/PhysRevC.99.014613

Conclusive evidence for the influence of nuclear orientation on quasifission
journal, March 1996

Hinde, D. J.; Dasgupta, M.; Leigh, J. R.
Physical Review C, Vol. 53, Issue 3
DOI: 10.1103/PhysRevC.53.1290

Fission and quasifission modes in heavy-ion-induced reactions leading to the formation of Hs $^{*}$
journal, June 2011

Itkis, I. M.; Kozulin, E. M.; Itkis, M. G.
Physical Review C, Vol. 83, Issue 6
DOI: 10.1103/PhysRevC.83.064613

Quantal nucleon diffusion: Central collisions of symmetric nuclei
journal, October 2016

Ayik, S.; Yilmaz, O.; Yilmaz, B.
Physical Review C, Vol. 94, Issue 4
DOI: 10.1103/PhysRevC.94.044624

Evolution of signatures of quasifission in reactions forming curium
journal, September 2013

Williams, E.; Hinde, D. J.; Dasgupta, M.
Physical Review C, Vol. 88, Issue 3
DOI: 10.1103/PhysRevC.88.034611

Nuclear quantum many-body dynamics: From collective vibrations to heavy-ion collisions
journal, November 2012

Simenel, Cédric
The European Physical Journal A, Vol. 48, Issue 11
DOI: 10.1140/epja/i2012-12152-0

Effect of pairing on one- and two-nucleon transfer below the Coulomb barrier: A time-dependent microscopic description
journal, January 2013

Scamps, Guillaume; Lacroix, Denis
Physical Review C, Vol. 87, Issue 1
DOI: 10.1103/PhysRevC.87.014605

Quasifission processes in ${}^{40, 48}{Ca} + {}^{144, 154}{Sm}$ reactions
journal, June 2007

Knyazheva, G. N.; Kozulin, E. M.; Sagaidak, R. N.
Physical Review C, Vol. 75, Issue 6
DOI: 10.1103/PhysRevC.75.064602

Entrance-channel effects in quasifission reactions
journal, April 1996

Back, B. B.; Fernandez, P. B.; Glagola, B. G.
Physical Review C, Vol. 53, Issue 4
DOI: 10.1103/PhysRevC.53.1734

TDHF Theory and Its Extensions for the Multinucleon Transfer Reaction: A Mini Review
journal, March 2019

Sekizawa, Kazuyuki
Frontiers in Physics, Vol. 7
DOI: 10.3389/fphy.2019.00020

Fission and quasifission toward the superheavy mass region
journal, August 2019

Vardaci, E.; Itkis, M. G.; Itkis, I. M.
Journal of Physics G: Nuclear and Particle Physics, Vol. 46, Issue 10
DOI: 10.1088/1361-6471/ab3118

Fission and quasifission in U-induced reactions
journal, July 1987

Shen, W. Q.; Albinski, J.; Gobbi, A.
Physical Review C, Vol. 36, Issue 1
DOI: 10.1103/PhysRevC.36.115

Shell effects in damped collisions: a new way to superheavies
journal, October 2007

Zagrebaev, Valery; Greiner, Walter
Journal of Physics G: Nuclear and Particle Physics, Vol. 34, Issue 11
DOI: 10.1088/0954-3899/34/11/004

Shell structure of superheavy nuclei in self-consistent mean-field models
journal, August 1999

Bender, M.; Rutz, K.; Reinhard, P. -G.
Physical Review C, Vol. 60, Issue 3
DOI: 10.1103/PhysRevC.60.034304

Enhanced nucleon transfer in tip collisions of ${}^{238}U + {}^{124}{Sn}$
journal, October 2017

Sekizawa, Kazuyuki
Physical Review C, Vol. 96, Issue 4
DOI: 10.1103/PhysRevC.96.041601

Neutron emission as a probe of fusion-fission and quasifission dynamics
journal, March 1992

Hinde, D. J.; Hilscher, D.; Rossner, H.
Physical Review C, Vol. 45, Issue 3
DOI: 10.1103/PhysRevC.45.1229

Time-dependent Hartree-Fock calculations for multinucleon transfer processes in $^{40, 48}$ Ca+ $^{124}$ Sn, $^{40}$ Ca+ $^{208}$ Pb, and $^{58}$ Ni+ $^{208}$ Pb reactions
journal, July 2013

Sekizawa, Kazuyuki; Yabana, Kazuhiro
Physical Review C, Vol. 88, Issue 1
DOI: 10.1103/PhysRevC.88.014614

Fission Time Measurements: A New Probe into Superheavy Element Stability
journal, August 2008

Morjean, M.; Jacquet, D.; Charvet, J. L.
Physical Review Letters, Vol. 101, Issue 7
DOI: 10.1103/PhysRevLett.101.072701

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

Balian, Roger; Vénéroni, Marcel
Physics Letters B, Vol. 136, Issue 5-6
DOI: 10.1016/0370-2693(84)92008-2

Shell effects in damped collisions of ${}^{88}{Sr}$ with ${}^{176}{Yb}$ at the Coulomb barrier energy
journal, January 2014

Kozulin, E. M.; Knyazheva, G. N.; Dmitriev, S. N.
Physical Review C, Vol. 89, Issue 1
DOI: 10.1103/PhysRevC.89.014614

Systematic behavior of mass distributions in $^{48}$ Ti-induced fission at near-barrier energies
journal, January 2012

Lin, C. J.; du Rietz, R.; Hinde, D. J.
Physical Review C, Vol. 85, Issue 1
DOI: 10.1103/PhysRevC.85.014611

Predominant Time Scales in Fission Processes in Reactions of S, Ti and Ni with W: Zeptosecond versus Attosecond
journal, February 2011

du Rietz, R.; Hinde, D. J.; Dasgupta, M.
Physical Review Letters, Vol. 106, Issue 5
DOI: 10.1103/PhysRevLett.106.052701

Superheavy nuclei from 48Ca-induced reactions
journal, December 2015

Oganessian, Yu. Ts.; Utyonkov, V. K.
Nuclear Physics A, Vol. 944
DOI: 10.1016/j.nuclphysa.2015.07.003

Study of the dynamical potential barriers in heavy ion collisions
journal, October 2013

Zhu, Long; Su, Jun; Xie, Wen-Jie
Nuclear Physics A, Vol. 915
DOI: 10.1016/j.nuclphysa.2013.07.003

Coordinate space Hartree-Fock-Bogoliubov calculations for the zirconium isotope chain up to the two-neutron drip line
journal, May 2005

Blazkiewicz, A.; Oberacker, V. E.; Umar, A. S.
Physical Review C, Vol. 71, Issue 5
DOI: 10.1103/PhysRevC.71.054321

SHE research at RIKEN/GARIS
journal, December 2015

Morita, Kosuke
Nuclear Physics A, Vol. 944
DOI: 10.1016/j.nuclphysa.2015.10.007

Isotopic trends of quasifission and fusion-fission in the reactions ${}^{48}{Ca} + {}^{239, 244}{Pu}$
journal, December 2018

Guo, Lu; Shen, Caiwan; Yu, Chong
Physical Review C, Vol. 98, Issue 6
DOI: 10.1103/PhysRevC.98.064609

Measurement of the fusion probability, $P_{CN}$ , for hot fusion reactions
journal, July 2013

Yanez, R.; Loveland, W.; Barrett, J. S.
Physical Review C, Vol. 88, Issue 1
DOI: 10.1103/PhysRevC.88.014606

Shape coexistence and triaxiality in the superheavy nuclei
journal, February 2005

Ćwiok, S.; Heenen, P. -H.; Nazarewicz, W.
Nature, Vol. 433, Issue 7027
DOI: 10.1038/nature03336

Exploring quasifission characteristics for ${}^{34}S + {}^{232}{Th}$ forming ${}^{266}{Sg}$
journal, February 2016

Prasad, E.; Wakhle, A.; Hinde, D. J.
Physical Review C, Vol. 93, Issue 2
DOI: 10.1103/PhysRevC.93.024607

Fusion-Fission versus Quasifission: Effect of Nuclear Orientation
journal, February 1995

Hinde, D. J.; Dasgupta, M.; Leigh, J. R.
Physical Review Letters, Vol. 74, Issue 8
DOI: 10.1103/PhysRevLett.74.1295

Impact of pear-shaped fission fragments on mass-asymmetric fission in actinides
journal, December 2018

Scamps, Guillaume; Simenel, Cédric
Nature, Vol. 564, Issue 7736
DOI: 10.1038/s41586-018-0780-0

Entrance channel dynamics of hot and cold fusion reactions leading to superheavy elements
journal, June 2010

Umar, A. S.; Oberacker, V. E.; Maruhn, J. A.
Physical Review C, Vol. 81, Issue 6
DOI: 10.1103/PhysRevC.81.064607

Effect of shell structure on the fission of sub-lead nuclei
journal, October 2019

Scamps, Guillaume; Simenel, Cédric
Physical Review C, Vol. 100, Issue 4
DOI: 10.1103/PhysRevC.100.041602

Time-dependent Hartree-Fock calculations for ${}^{16}O$ + ${}^{16}O$ and ${}^{40}{Ca}$ + ${}^{40}{Ca}$ reactions
journal, April 1977

Koonin, S. E.; Davies, K. T. R.; Maruhn-Rezwani, V.
Physical Review C, Vol. 15, Issue 4
DOI: 10.1103/PhysRevC.15.1359

New results on elements 111 and 112
journal, June 2002

Hofmann, S.; Heßberger, F. P.; Ackermann, D.
The European Physical Journal A, Vol. 14, Issue 2
DOI: 10.1140/epja/i2001-10119-x

Time-dependent HF approach to SHE dynamics
journal, December 2015

Umar, A. S.; Oberacker, V. E.
Nuclear Physics A, Vol. 944
DOI: 10.1016/j.nuclphysa.2015.02.011

Reduced quasifission competition in fusion reactions forming neutron-rich heavy elements
journal, April 2015

Hammerton, K.; Kohley, Z.; Hinde, D. J.
Physical Review C, Vol. 91, Issue 4
DOI: 10.1103/PhysRevC.91.041602

Quantal diffusion approach for multinucleon transfers in Xe + Pb collisions
journal, July 2019

Ayik, S.; Yilmaz, B.; Yilmaz, O.
Physical Review C, Vol. 100, Issue 1
DOI: 10.1103/PhysRevC.100.014609

Microscopic calculation of precompound excitation energies for heavy-ion collisions
journal, October 2009

Umar, A. S.; Oberacker, V. E.; Maruhn, J. A.
Physical Review C, Vol. 80, Issue 4
DOI: 10.1103/PhysRevC.80.041601

Shell effects in fission and quasi-fission of heavy and superheavy nuclei
journal, April 2004

Itkis, M. G.; A¨ysto¨, J.; Beghini, S.
Nuclear Physics A, Vol. 734
DOI: 10.1016/j.nuclphysa.2004.01.022

Microscopic description of production cross sections including deexcitation effects
journal, July 2017

Sekizawa, Kazuyuki
Physical Review C, Vol. 96, Issue 1
DOI: 10.1103/PhysRevC.96.014615

Stochastic quantum dynamics beyond mean field
journal, June 2014

Lacroix, Denis; Ayik, Sakir
The European Physical Journal A, Vol. 50, Issue 6
DOI: 10.1140/epja/i2014-14095-8

Influence of entrance-channel magicity and isospin on quasi-fission
journal, April 2012

Simenel, C.; Hinde, D. J.; du Rietz, R.
Physics Letters B, Vol. 710, Issue 4-5
DOI: 10.1016/j.physletb.2012.03.063

Disentangling Effects of Nuclear Structure in Heavy Element Formation
journal, May 2008

Hinde, D. J.; Thomas, R. G.; du Rietz, R.
Physical Review Letters, Vol. 100, Issue 20
DOI: 10.1103/PhysRevLett.100.202701

Particle-Number Fluctuations and Correlations in Transfer Reactions Obtained Using the Balian-Vénéroni Variational Principle
journal, March 2011

Simenel, Cédric
Physical Review Letters, Vol. 106, Issue 11
DOI: 10.1103/PhysRevLett.106.112502

Fusion probabilities in the reactions $^{40, 48}$ Ca+ $^{238}$ U at energies around the Coulomb barrier
journal, September 2012

Nishio, K.; Mitsuoka, S.; Nishinaka, I.
Physical Review C, Vol. 86, Issue 3
DOI: 10.1103/PhysRevC.86.034608

Actinide targets for the synthesis of super-heavy elements
journal, December 2015

Roberto, J. B.; Alexander, C. W.; Boll, R. A.
Nuclear Physics A, Vol. 944
DOI: 10.1016/j.nuclphysa.2015.06.009

New neutron-rich isotope production in 154 Sm+ 160 Gd
journal, September 2016

Wang, Ning; Guo, Lu
Physics Letters B, Vol. 760
DOI: 10.1016/j.physletb.2016.06.073

Fusion and quasifission dynamics in the reactions ${}^{48}{Ca} + {}^{249}{Bk}$ and ${}^{50}{Ti} + {}^{249}{Bk}$ using a time-dependent Hartree-Fock approach
journal, August 2016

Umar, A. S.; Oberacker, V. E.; Simenel, C.
Physical Review C, Vol. 94, Issue 2
DOI: 10.1103/PhysRevC.94.024605

Complete fusion and quasifission in reactions between heavy ions
journal, June 1985

Back, B. B.
Physical Review C, Vol. 31, Issue 6
DOI: 10.1103/PhysRevC.31.2104

Transfer probabilities for the reactions ${}^{14, 20}O + {}^{20}O$ in terms of multiple time-dependent Hartree-Fock-Bogoliubov trajectories
journal, September 2017

Scamps, Guillaume; Hashimoto, Yukio
Physical Review C, Vol. 96, Issue 3
DOI: 10.1103/PhysRevC.96.031602

The mean-field theory of nuclear structure and dynamics
journal, October 1982

Negele, J. W.
Reviews of Modern Physics, Vol. 54, Issue 4
DOI: 10.1103/RevModPhys.54.913

Correlations and fluctuations in static and dynamic mean-field approaches
journal, June 1992

Balian, Roger; Vénéroni, Marcel
Annals of Physics, Vol. 216, Issue 2
DOI: 10.1016/0003-4916(92)90181-K

Hindrance of fusion in central collisions of heavy, symmetric nuclear systems
journal, June 1984

Sahm, C. -C.; Clerc, H. -G.; Schmidt, K. -H.
Zeitschrift f�r Physik A Atoms and Nuclei, Vol. 319, Issue 2
DOI: 10.1007/BF01415623

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

Ayik, Sakir
Physics Letters B, Vol. 658, Issue 4
DOI: 10.1016/j.physletb.2007.09.072

Probing Neutron Correlations through Nuclear Breakup
journal, May 2009

Assié, Marlène; Lacroix, Denis
Physical Review Letters, Vol. 102, Issue 20
DOI: 10.1103/PhysRevLett.102.202501

Analysis of dynamical processes using the mass distribution of fission fragments in heavy-ion reactions
journal, December 2009

Aritomo, Y.
Physical Review C, Vol. 80, Issue 6
DOI: 10.1103/PhysRevC.80.064604

Quadrupole resonances in unstable oxygen isotopes in time-dependent density-matrix formalism
journal, November 2002

Tohyama, M.; Umar, A. S.
Physics Letters B, Vol. 549, Issue 1-2
DOI: 10.1016/S0370-2693(02)02885-X

Heavy-isotope production in ${}^{136}{Xe} + {}^{208}{Pb}$ collisions at $E_{c . m .} = 514$ MeV
journal, October 2019

Ayik, S.; Yilmaz, O.; Yilmaz, B.
Physical Review C, Vol. 100, Issue 4
DOI: 10.1103/PhysRevC.100.044614

Production of unknown neutron-rich isotopes in ${}^{238}U + {}^{238}U$ collisions at near-barrier energy
journal, August 2016

Zhao, Kai; Li, Zhuxia; Zhang, Yingxun
Physical Review C, Vol. 94, Issue 2
DOI: 10.1103/PhysRevC.94.024601

Two-body collision effects on the low-L fusion window in 16O+16O reactions
journal, October 1985

Tohyama, M.
Physics Letters B, Vol. 160, Issue 4-5
DOI: 10.1016/0370-2693(85)91317-6

Probing the production mechanism of neutron-rich nuclei in multinucleon transfer reactions
journal, January 2020

Jiang, Xiang; Wang, Nan
Physical Review C, Vol. 101, Issue 1
DOI: 10.1103/PhysRevC.101.014604

Possibilities for synthesis of new isotopes of superheavy elements in fusion reactions
journal, January 2012

Zagrebaev, V. I.; Karpov, A. V.; Greiner, Walter
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DOI: 10.1103/PhysRevC.85.014608

Effects of nuclear orientation on the mass distribution of fission fragments in the reaction of ${}^{36}S + {}^{238}U$
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Nishio, K.; Ikezoe, H.; Mitsuoka, S.
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DOI: 10.1103/PhysRevC.77.064607

Observation of mass-asymmetric fission of mercury nuclei in heavy ion fusion
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Prasad, E.; Hinde, D. J.; Ramachandran, K.
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DOI: 10.1103/PhysRevC.91.064605

New procedure to determine the mass-angle correlation of quasifission
journal, December 2019

Schmitt, C.; Mazurek, K.; Nadtochy, P. N.
Physical Review C, Vol. 100, Issue 6
DOI: 10.1103/PhysRevC.100.064606

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Dynamics of quasifission

Journal Article Umar, A. S., E-mail: umar@compsci.cas.vanderbilt.edu ; Oberacker, V. E. ; Simenel, C. - AIP Conference Proceedings

Quasifission is the primary reaction mechanism that limits the formation of superheavy nuclei and consequently an important ingredient for choosing the best target-projectile combinations for the heavy element searches. Quasifission is characterized by nuclear contact-times that are much longer than those found in deep-inelastic reactions, resulting in a substantial mass and charge transfer. In this manuscript we employ the fully microscopic time-dependent Hartree-Fock (TDHF) theory to study quasifission. New results are presented for the {sup 48}Ca+{sup 249}Bk system.
https://doi.org/10.1063/1.4932263
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We demonstrate that the microscopic Time-dependent Hartree-Fock (TDHF) theory provides an important approach to shed light on the nuclear dynamics leading to the formation of superheavy elements. In particular, we discuss studying quasifission dynamics and calculating ingredients for compound nucleus formation probability calculations. We also discuss possible extensions to TDHF to address the distribution of observables.
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Background: Quasifission is the main reaction channel hindering the formation of superheavy nuclei (SHN). Its understanding will help to optimize entrance channels for SHN studies. Quasifission also provides a probe to understand the influence of shell effects in the formation of the fragments. Purpose: Investigate the role of shell effects in quasifission and their interplay with the orientation of the deformed target in the entrance channel. Methods: ⁴⁸Ca + ²⁴⁹Bk collisions are studied with the time-dependent Hartree-Fock approach for a range of angular momenta and orientations. Results: Unlike similar reactions with a ²³⁸U target, no significant shell effects which couldmore »« less
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In this manuscript we provide an outline of the numerical methods used in implementing the density constrained time-dependent Hartree-Fock (DC-TDHF) method and provide a few examples of its application to nuclear fusion. In this approach, dynamic microscopic calculations are carried out on a three-dimensional lattice and there are no adjustable parameters, the only input is the Skyrme effective NN interaction. After a review of the DC-TDHF theory and the numerical methods, we present results for heavy-ion potentials V (R), coordinate-dependent mass parameters M(R), and precompound excitation energies E*(R) for a variety of heavy-ion reactions. Using fusion barrier penetrabilities, we calculatemore »« less
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The use of actinide collisions have been suggested as a way to produce neutron-rich isotopes of high-Z nuclei. The collision dynamics of these reactions can be studied using unrestricted time-dependent Hartree–Fock (TDHF) calculations. Here, we report on the recent studies of quasifission for the ²³⁸U+²³⁸U system.
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Title: Quasifission Dynamics in Microscopic Theories

Abstract

Citation Formats

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

Two-body dissipation effects on the synthesis of superheavy elements journal, March 2016

On the mass distribution in Time-Dependent Hartree-Fock calculations of heavy-ion collisions journal, December 1979

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X-Ray Fluorescence from the Element with Atomic Number Z = 120 journal, March 2012

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Mapping quasifission characteristics and timescales in heavy element formation reactions journal, November 2013

Particle Transfer Reactions with the Time-Dependent Hartree-Fock Theory Using a Particle Number Projection Technique journal, November 2010

Dynamical deformation effects in subbarrier fusion of Ni 64 + Sn 132 journal, December 2006

Analysis of multinucleon transfer reactions with spherical and statically deformed nuclei using a Langevin-type approach journal, January 2019

Conclusive evidence for the influence of nuclear orientation on quasifission journal, March 1996

Fission and quasifission modes in heavy-ion-induced reactions leading to the formation of Hs * journal, June 2011

Quantal nucleon diffusion: Central collisions of symmetric nuclei journal, October 2016

Evolution of signatures of quasifission in reactions forming curium journal, September 2013

Nuclear quantum many-body dynamics: From collective vibrations to heavy-ion collisions journal, November 2012

Effect of pairing on one- and two-nucleon transfer below the Coulomb barrier: A time-dependent microscopic description journal, January 2013

Quasifission processes in Ca 40 , 48 + Sm 144 , 154 reactions journal, June 2007

Entrance-channel effects in quasifission reactions journal, April 1996

TDHF Theory and Its Extensions for the Multinucleon Transfer Reaction: A Mini Review journal, March 2019

Fission and quasifission toward the superheavy mass region journal, August 2019

Fission and quasifission in U-induced reactions journal, July 1987

Shell effects in damped collisions: a new way to superheavies journal, October 2007

Shell structure of superheavy nuclei in self-consistent mean-field models journal, August 1999

Enhanced nucleon transfer in tip collisions of U 238 + Sn 124 journal, October 2017

Neutron emission as a probe of fusion-fission and quasifission dynamics journal, March 1992

Time-dependent Hartree-Fock calculations for multinucleon transfer processes in 40 , 48 Ca+ 124 Sn, 40 Ca+ 208 Pb, and 58 Ni+ 208 Pb reactions journal, July 2013

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

Shell effects in damped collisions of Sr 88 with Yb 176 at the Coulomb barrier energy journal, January 2014

Systematic behavior of mass distributions in 48 Ti-induced fission at near-barrier energies journal, January 2012

Predominant Time Scales in Fission Processes in Reactions of S, Ti and Ni with W: Zeptosecond versus Attosecond journal, February 2011

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Isotopic trends of quasifission and fusion-fission in the reactions Ca 48 + Pu 239 , 244 journal, December 2018

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New results on elements 111 and 112 journal, June 2002

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Reduced quasifission competition in fusion reactions forming neutron-rich heavy elements journal, April 2015

Quantal diffusion approach for multinucleon transfers in Xe + Pb collisions journal, July 2019

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Shell effects in fission and quasi-fission of heavy and superheavy nuclei journal, April 2004

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Stochastic quantum dynamics beyond mean field journal, June 2014

Theoretical description of superheavy nuclei
journal, April 2002

Microscopic approach of fission dynamics applied to fragment kinetic energy and mass distributions in ${}^{238}U$
journal, February 2005

Dissipative dynamics in quasifission
journal, November 2014

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

Two-body dissipation effects on the synthesis of superheavy elements
journal, March 2016

On the mass distribution in Time-Dependent Hartree-Fock calculations of heavy-ion collisions
journal, December 1979

Recent developments in heavy-ion fusion reactions
journal, March 2014

Quantal diffusion description of multinucleon transfers in heavy-ion collisions
journal, May 2018

Time-dependent Hartree-Fock calculations for multinucleon transfer and quasifission processes in the ${}^{64}{Ni} + {}^{238}U$ reaction
journal, May 2016

Interplay between Quantum Shells and Orientation in Quasifission
journal, October 2014

Deformed shell effects in Ca 48 + Bk 249 quasifission fragments
journal, August 2019

Low-energy heavy-ion reactions and the Skyrme effective interaction
journal, January 2019

X-Ray Fluorescence from the Element with Atomic Number $Z = 120$
journal, March 2012

Synthesis of the heaviest nuclei in cold fusion reactions
journal, December 2015

Investigation of the reaction 64Ni+238U being an option of synthesizing element 120
journal, March 2010

Quasi-fission — The mass-drift mode in heavy-ion reactions
journal, July 1985

Review on the progress in nuclear fission—experimental methods and theoretical descriptions
journal, September 2018

Transport properties of isospin asymmetric nuclear matter using the time-dependent Hartree-Fock method
journal, August 2017

Characteristics of quasifission products within the dinuclear system model
journal, September 2003

Shape evolution and collective dynamics of quasifission in the time-dependent Hartree-Fock approach
journal, August 2015

Heavy-ion collisions and fission dynamics with the time-dependent Hartree–Fock theory and its extensions
journal, November 2018

New inverse quasifission mechanism to produce neutron-rich transfermium nuclei
journal, April 2010

Exploring Zeptosecond Quantum Equilibration Dynamics: From Deep-Inelastic to Fusion-Fission Outcomes in ${}^{58}{Ni} + {}^{60}{Ni}$ Reactions
journal, January 2018

Synthesis of transactinide nuclei using radioactive beams
journal, July 2007

Evidence for the Role of Proton Shell Closure in Quasifission Reactions from X-Ray Fluorescence of Mass-Identified Fragments
journal, November 2017

Probing sub-barrier fusion and extra-push by measuring fermium evaporation residues in different heavy ion reactions
journal, October 1984

Time-dependent Hartree-Fock plus Langevin approach for hot fusion reactions to synthesize the $Z = 120$ superheavy element
journal, May 2019

Modeling near-barrier collisions of heavy ions based on a Langevin-type approach
journal, August 2017

The conditions for the synthesis of heavy nuclei
journal, July 1991

Foreword
journal, December 2015

Fission Barriers of Compound Superheavy Nuclei
journal, May 2009

Mapping quasifission characteristics and timescales in heavy element formation reactions
journal, November 2013

Particle Transfer Reactions with the Time-Dependent Hartree-Fock Theory Using a Particle Number Projection Technique
journal, November 2010

Dynamical deformation effects in subbarrier fusion of ${}^{64}{Ni} + {}^{132}{Sn}$
journal, December 2006

Analysis of multinucleon transfer reactions with spherical and statically deformed nuclei using a Langevin-type approach
journal, January 2019

Conclusive evidence for the influence of nuclear orientation on quasifission
journal, March 1996

Fission and quasifission modes in heavy-ion-induced reactions leading to the formation of Hs $^{*}$
journal, June 2011

Quantal nucleon diffusion: Central collisions of symmetric nuclei
journal, October 2016

Evolution of signatures of quasifission in reactions forming curium
journal, September 2013

Nuclear quantum many-body dynamics: From collective vibrations to heavy-ion collisions
journal, November 2012

Effect of pairing on one- and two-nucleon transfer below the Coulomb barrier: A time-dependent microscopic description
journal, January 2013

Quasifission processes in ${}^{40, 48}{Ca} + {}^{144, 154}{Sm}$ reactions
journal, June 2007

Entrance-channel effects in quasifission reactions
journal, April 1996

TDHF Theory and Its Extensions for the Multinucleon Transfer Reaction: A Mini Review
journal, March 2019

Fission and quasifission toward the superheavy mass region
journal, August 2019

Fission and quasifission in U-induced reactions
journal, July 1987

Shell effects in damped collisions: a new way to superheavies
journal, October 2007

Shell structure of superheavy nuclei in self-consistent mean-field models
journal, August 1999

Enhanced nucleon transfer in tip collisions of ${}^{238}U + {}^{124}{Sn}$
journal, October 2017

Neutron emission as a probe of fusion-fission and quasifission dynamics
journal, March 1992

Time-dependent Hartree-Fock calculations for multinucleon transfer processes in $^{40, 48}$ Ca+ $^{124}$ Sn, $^{40}$ Ca+ $^{208}$ Pb, and $^{58}$ Ni+ $^{208}$ Pb reactions
journal, July 2013

Fission Time Measurements: A New Probe into Superheavy Element Stability
journal, August 2008

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

Shell effects in damped collisions of ${}^{88}{Sr}$ with ${}^{176}{Yb}$ at the Coulomb barrier energy
journal, January 2014

Systematic behavior of mass distributions in $^{48}$ Ti-induced fission at near-barrier energies
journal, January 2012

Predominant Time Scales in Fission Processes in Reactions of S, Ti and Ni with W: Zeptosecond versus Attosecond
journal, February 2011

Superheavy nuclei from 48Ca-induced reactions
journal, December 2015

Study of the dynamical potential barriers in heavy ion collisions
journal, October 2013

Coordinate space Hartree-Fock-Bogoliubov calculations for the zirconium isotope chain up to the two-neutron drip line
journal, May 2005

SHE research at RIKEN/GARIS
journal, December 2015

Isotopic trends of quasifission and fusion-fission in the reactions ${}^{48}{Ca} + {}^{239, 244}{Pu}$
journal, December 2018

Measurement of the fusion probability, $P_{CN}$ , for hot fusion reactions
journal, July 2013

Shape coexistence and triaxiality in the superheavy nuclei
journal, February 2005

Exploring quasifission characteristics for ${}^{34}S + {}^{232}{Th}$ forming ${}^{266}{Sg}$
journal, February 2016

Fusion-Fission versus Quasifission: Effect of Nuclear Orientation
journal, February 1995

Impact of pear-shaped fission fragments on mass-asymmetric fission in actinides
journal, December 2018

Entrance channel dynamics of hot and cold fusion reactions leading to superheavy elements
journal, June 2010

Effect of shell structure on the fission of sub-lead nuclei
journal, October 2019

Time-dependent Hartree-Fock calculations for ${}^{16}O$ + ${}^{16}O$ and ${}^{40}{Ca}$ + ${}^{40}{Ca}$ reactions
journal, April 1977

New results on elements 111 and 112
journal, June 2002

Time-dependent HF approach to SHE dynamics
journal, December 2015

Reduced quasifission competition in fusion reactions forming neutron-rich heavy elements
journal, April 2015

Quantal diffusion approach for multinucleon transfers in Xe + Pb collisions
journal, July 2019

Microscopic calculation of precompound excitation energies for heavy-ion collisions
journal, October 2009

Shell effects in fission and quasi-fission of heavy and superheavy nuclei
journal, April 2004

Microscopic description of production cross sections including deexcitation effects
journal, July 2017

Stochastic quantum dynamics beyond mean field
journal, June 2014

Influence of entrance-channel magicity and isospin on quasi-fission
journal, April 2012

Disentangling Effects of Nuclear Structure in Heavy Element Formation
journal, May 2008

Particle-Number Fluctuations and Correlations in Transfer Reactions Obtained Using the Balian-Vénéroni Variational Principle
journal, March 2011