Beyond mean-ﬁeld approach to heavy-ion reactions around the Coulomb barrier - INSPIRE

DataBETA

Beyond mean-ﬁeld approach to heavy-ion reactions around the Coulomb barrier

Kouhei Washiyama
(
- Brussels U., PNTPM
)
,
Denis Lacroix
(
- GANIL
)
,
Sakir Ayik
(
- Tennessee Tech. U.
)
,
Bülent Yilmaz
(
- Ankara U.
)

Sep, 2011

6 pages

Part of Proceedings, 5th international Conference FUSION11 : Saint Malo, France, May 2-6, 2011

Published in:

EPJ Web Conf. 17 (2011) 09003

Contribution to:

5th International Conference FUSION11

Published: Oct 19, 2011

e-Print:

1109.6255 [nucl-th]

DOI:

10.1051/epjconf/20111709003

View in:

reference search0 citations

Citations per year

0 Citations

Abstract: (EDP Sciences)

Dissipation and fluctuations of one-body observables in heavy-ion reactions aroundthe Coulomb barrier are investigated with a microscopic stochastic mean-fieldapproach. By projecting the stochastic meanfield dynamics on a suitablecollective path, transport coefficients associated with the relative distancebetween colliding nuclei and a fragment mass are extracted. Although microscopicmean-field approach is know to underestimate the variance of fragment massdistribution, the description of the variance is much improved by the stochasticmean-field method. While fluctuations are consistent with the empirical(semiclassical) analysis of the experimental data, concerning mean values ofmacroscopic variables the semiclassical description breaks down below theCoulomb barrier.

Note:

6 pages, 6 figures. A talk given at the FUSION11, May 2-6, 2011, Saint-Malo, France

References(36)

Figures(6)

One-dimensional nuclear dynamics in the time-dependent Hartree-Fock approximation

- Phys.Rev.C 13 (1976) 1226-1258
•
DOI:
- 10.1103/PhysRevC.13.1226

- Prog.Part.Nucl.Phys. 4 283

The mean-field theory of nuclear structure and dynamics

John W. Negele
(
- MIT, LNS
)

- Rev.Mod.Phys. 54 (1982) 913-1015
•
DOI:
- 10.1103/RevModPhys.54.913

- J.Phys.G 23 1267

Quantum calculation of dipole excitation in fusion reaction

- Phys.Rev.Lett. 86 (2001) 2971-2974
•
e-Print:
- nucl-th/0011042
•
DOI:
- 10.1103/PhysRevLett.86.2971

Linear response theory in the continuum for deformed nuclei: Green's function versus time-dependent Hartree-Fock with the absorbing-boundary condition

Takashi Nakatsukasa
(
- Tsukuba U.
)
,
Kazuhiro Yabana
(
- Tsukuba U.
)

- Phys.Rev.C 71 (2005) 024301
•
e-Print:
- nucl-th/0409013
•
DOI:
- 10.1103/PhysRevC.71.024301

Dipole giant resonances in deformed heavy nuclei

J.A. Maruhn
(
- Frankfurt U. and
- Oak Ridge
)
,
P.G. Reinhard
(
- Erlangen - Nuremberg U., Theorie III and
- Oak Ridge
)
,
P.D. Stevenson
(
- Surrey U. and
- Oxford U. and
- Oak Ridge
)
,
J.Rikovska Stone
(
- Oxford U. and
- Maryland U.
)
,
M.R. Strayer
(
- Oak Ridge
)

- Phys.Rev.C 71 (2005) 064328
•
DOI:
- 10.1103/PhysRevC.71.064328

3-D unrestricted TDHF fusion calculations using the full Skyrme interaction

A.S. Umar
(
- Vanderbilt U.
)
,
V.E. Oberacker
(
- Vanderbilt U.
)

- Phys.Rev.C 73 (2006) 054607
•
e-Print:
- nucl-th/0603038
•
DOI:
- 10.1103/PhysRevC.73.054607

Suppression of Charge Equilibration leading to the Synthesis of Exotic Nuclei

Yoritaka Iwata
(
- Darmstadt, GSI
)
,
Takaharu Otsuka
(
- Tokyo U. and
- Tokyo U., CNS
)
,
Joachim A. Maruhn
(
- Frankfurt U.
)
,
Naoyuki Itagaki
(
- Tokyo U.
)

- Phys.Rev.Lett. 104 (2010) 252501
•
e-Print:
- 1001.0850
•
DOI:
- 10.1103/PhysRevLett.104.252501

Time-dependent Hartree-Fock calculations for O-16 + O-16 and Ca-40 + Ca-40 reactions

S.E. Koonin
(
- Caltech, Kellogg Lab
)
,
K.Thomas R. Davies
(
- Oak Ridge
)
,
V. Maruhn-Rezwani
(
- Oak Ridge
)
,
H. Feldmeier
(
- Oak Ridge
)
,
S.J. Krieger
(
- Oak Ridge
)

et al.

- Phys.Rev.C 15 (1977) 1359-1374
•
DOI:
- 10.1103/PhysRevC.15.1359

- Phys.Rev.Lett. 41 632

- Z.Phys.A 289 395

On stochastic approaches of nuclear dynamics

Y. Abe
(
- Kyoto U., Yukawa Inst., Kyoto
)
,
S. Ayik
(
- Tennessee Tech. U.
)
,
P.G. Reinhard
(
- Erlangen - Nuremberg U.
)
,
E. Suraud
(
- Toulouse III U.
)

- Phys.Rept. 275 (1996) 49-196
•
DOI:
- 10.1016/0370-1573(96)00003-8

- Prog.Part.Nucl.Phys. 52 497

Fluctuations in a time-dependent mean-field approach

- Phys.Lett.B 136 (1984) 301-306
•
DOI:
- 10.1016/0370-2693(84)92008-2

Mass dispersions in a time-dependent mean-field approach

- Nucl.Phys.A 428 (1984) 79-94
•
DOI:
- 10.1016/0375-9474(84)90243-4

- Phys.Rev.Lett. 54 1139

Mass dispersions from giant dipole resonances using the Balian-Veneroni variational approach

J.M.A. Broomfield
(
- Surrey U.
)
,
P.D. Stevenson
(
- Surrey U.
)

- J.Phys.G 35 (2008) 095102
•
e-Print:
- 0805.0734
•
DOI:
- 10.1088/0954-3899/35/9/095102

Particle number fluctuations and correlations in transfer reactions obtained using the Balian-Veneroni variational principle

Cedric Simenel
(
- Australian Natl. U., Canberra and
- DAPNIA, Saclay
)

- Phys.Rev.Lett. 106 (2011) 112502
•
e-Print:
- 1011.2293
•
DOI:
- 10.1103/PhysRevLett.106.112502

A Stochastic Mean-Field Approach For Nuclear Dynamics

Sakir Ayik
(
- Tennessee Tech. U.
)

- Phys.Lett.B 658 (2008) 174-179
•
e-Print:
- 0709.2686
•
DOI:
- 10.1016/j.physletb.2007.09.072

Energy dependence of nucleus-nucleus potential close to the Coulomb barrier

Kouhei Washiyama
(
- GANIL and
- Tohoku U.
)
,
Denis Lacroix
(
- GANIL
)

- Phys.Rev.C 78 (2008) 024610
•
e-Print:
- 0804.2823
•
DOI:
- 10.1103/PhysRevC.78.024610

One-body energy dissipation in fusion reaction from mean-field theory

- Phys.Rev.C 79 (2009) 024609
•
e-Print:
- 0811.4130
•
DOI:
- 10.1103/PhysRevC.79.024609

Fluctuation and dissipation dynamics in fusion reactions from stochastic mean-field approach

- Phys.Rev.C 79 (2009) 054606
•
e-Print:
- 0902.0592
•
DOI:
- 10.1103/PhysRevC.79.054606

Mass dispersion in transfer reactions with a stochastic mean-field theory

Kouhei Washiyama
(
- GANIL
)
,
Sakir Ayik
(
- Tennessee Tech. U. and
- Middle East Tech. U., Ankara
)
,
Denis Lacroix
(
- GANIL
)

- Phys.Rev.C 80 (2009) 031602
•
e-Print:
- 0906.4498
•
DOI:
- 10.1103/PhysRevC.80.031602

Systematics of precise nuclear fusion cross sections: The need for a new dynamical treatment of fusion?

et al.

- Phys.Lett.B 586 (2004) 219-224
•
DOI:
- 10.1016/j.physletb.2004.02.052

1-25 of 36
1
2
25 / page