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Asymmetry effects on nuclear fragmentation

M. Di Toro
(
- INFN, LNS and
- Catania U.
)
,
V. Baran
(
- INFN, LNS and
- Catania U. and
- Bucharest, IFIN-HH
)
,
M. Colonna
(
- INFN, LNS and
- Catania U.
)
,
S. Maccarone
(
- INFN, LNS and
- Catania U.
)
,
M. Zielinska-Pfabe
(
- Smith Coll.
)

May, 2000

9 pages

Part of Phase transitions in strong interactions: Status and perspectives. Proceedings, 3rd Catania relativistic ion studies, CRIS 2000, Acicastello, Italy, May 22-26, 2000

Published in:

Nucl.Phys.A 681 (2001) 426-433

Contribution to:

- CRIS 2000

e-Print:

nucl-th/0009079 [nucl-th]

DOI:

10.1016/S0375-9474(00)00549-2

View in:

reference search28 citations

Citations per year

Abstract:

We show the possibility of extracting important information on the symmetry term of the Equation of State (

EOS

) directly from multifragmentation reactions using stable isotopes with different charge asymmetries. We study n-rich and n-poor

Sn + Sn

collisions at

50AMeV

using a new stochastic transport approach with all isospin effects suitably accounted for. For central collisions a chemical component in the spinodal instabilities is clearly seen. This effect is reduced in the neck fragmentation observed for semiperipheral collisions, pointing to a different nature of the instability. In spite of the low asymmetry tested with stable isotopes the results are showing an interesting and promising dependence on the stiffness of the symmetry term, with an indication towards an increase of the repulsion above normal density.

References(23)

Figures(0)

- Phys.Rept. 242 165

Magnetic rotation in the Sn-105 nucleus

A. Gadea
(
- INFN, Legnaro and
- Valencia U., IFIC
)
,
G. de Angelis
(
- INFN, Legnaro
)
,
C. Fahlander
(
- INFN, Legnaro and
- Uppsala U.
)
,
M. De Poli
(
- INFN, Legnaro
)
,
E. Farnea
(
- INFN, Legnaro
)

et al.

- Phys.Rev.C 55 (1997) R1-R4
•
DOI:
- 10.1103/PhysRevC.55.R1

Composition and structure of protoneutron stars

Madappa Prakash
(
- SUNY, Stony Brook and
- Santa Barbara, KITP
)
,
Ignazio Bombaci
(
- SUNY, Stony Brook
)
,
Manju Prakash
(
- SUNY, Stony Brook and
- Santa Barbara, KITP
)
,
Paul J. Ellis
(
- Santa Barbara, KITP and
- Minnesota U.
)
,
James M. Lattimer
(
- SUNY, Stony Brook
)

et al.

- Phys.Rept. 280 (1997) 1-77
•
e-Print:
- nucl-th/9603042
•
DOI:
- 10.1016/S0370-1573(96)00023-3

Derivation of a fluid-dynamical lagrangian and electric giant resonances

- Nucl.Phys.A 336 (1980) 155-184
•
DOI:
- 10.1016/0375-9474(80)90618-1

A Skyrme parametrization from subnuclear to neutron star densities

E. Chabanat
(
- Lyon, IPN
)
,
J. Meyer
(
- Lyon, IPN
)
,
P. Bonche
(
- Saclay
)
,
R. Schaeffer
(
- Saclay
)
,
P. Haensel
(
- Warsaw, Copernicus Astron. Ctr.
)

- Nucl.Phys.A 627 (1997) 710-746
•
DOI:
- 10.1016/S0375-9474(97)00596-4

Phase transitions in warm, asymmetric nuclear matter

Horst Muller
(
- Indiana U.
)
,
Brian D. Serot
(
- Indiana U.
)

- Phys.Rev.C 52 (1995) 2072-2091
•
e-Print:
- nucl-th/9505013
•
DOI:
- 10.1103/PhysRevC.52.2072

Chemical and mechanical instability in hot, isospin asymmetric nuclear matter

Bao-An Li
(
- Texas A-M
)
,
C.M. Ko
(
- Texas A-M
)

- Nucl.Phys.A 618 (1997) 498-508
•
e-Print:
- nucl-th/9701049
•
DOI:
- 10.1016/S0375-9474(97)00124-3

Collective modes in asymmetric nuclear matter

- Phys.Lett.B 428 (1998) 1-7
•
DOI:
- 10.1016/S0370-2693(98)00383-9

Spinodal decomposition of low-density asymmetric nuclear matter

V. Baran
(
- INFN, Catania and
- Catania U. and
- Bucharest U.
)
,
M. Colonna
(
- INFN, LNS and
- Catania U.
)
,
M. Di Toro
(
- INFN, LNS and
- Catania U.
)
,
A.B. Larionov
(
- INFN, Catania and
- Catania U. and
- Kurchatov Inst., Moscow
)

- Nucl.Phys.A 632 (1998) 287-303
•
e-Print:
- 0705.1291
•
DOI:
- 10.1016/S0375-9474(98)00006-2

Multifragmentation of charge asymmetric nuclear systems

A.B. Larionov
(
- Giessen U. and
- Kurchatov Inst., Moscow
)
,
A.S. Botvina
(
- INFN, Bologna and
- Bologna U. and
- Moscow, INR
)
,
M. Colonna
(
- INFN, LNS and
- Catania U.
)
,
M. Di Toro
(
- INFN, LNS and
- Catania U.
)

- Nucl.Phys.A 658 (1999) 375-389
•
e-Print:
- nucl-th/9906079
•
DOI:
- 10.1016/S0375-9474(99)00361-9

Effects of charge symmetry on heavy ion reaction mechanisms

M. Colonna
(
- INFN, Catania
)
,
M. Di Toro
(
- INFN, Catania
)
,
G. Fabbri
(
- Florence U. and
- INFN, Florence
)
,
S. Maccarone
(
- INFN, Catania
)

- Phys.Rev.C 57 (1998) 1410-1415
•
DOI:
- 10.1103/PhysRevC.57.1410

Fluctuations and dynamical instabilities in heavy-ion reactions

et al.

- Nucl.Phys.A 642 (1998) 449-460
•
DOI:
- 10.1016/S0375-9474(98)00542-9

Microscopic calculation of in-medium proton proton cross-sections

Guo-Qiang Li
(
- Idaho U.
)
,
R. Machleidt
(
- Idaho U.
)

- Phys.Rev.C 49 (1994) 566
•
e-Print:
- nucl-th/9308016
•
DOI:
- 10.1103/PhysRevC.49.566

Incompressibility and density distributions in asymmetric nuclear systems

- Phys.Rev.C 58 (1998) 2796-2806
•
DOI:
- 10.1103/PhysRevC.58.2796

Isospin fractionation in nuclear multifragmentation

H.S. Xu
(
- Michigan State U., NSCL
)
,
M.B. Tsang
(
- Michigan State U., NSCL
)
,
T.X. Liu
(
- Michigan State U., NSCL
)
,
X.D. Liu
(
- Michigan State U., NSCL
)
,
W.G. Lynch
(
- Michigan State U., NSCL
)

et al.

- Phys.Rev.Lett. 85 (2000) 716-719
•
e-Print:
- nucl-ex/9910019
•
DOI:
- 10.1103/PhysRevLett.85.716

Unstable infinite nuclear matter in stochastic mean field approach

M. Colonna
(
- GANIL and
- INFN, Catania
)
,
Ph. Chomaz
(
- GANIL and
- INFN, Catania
)

- Phys.Rev.C 49 (1994) 1908-1916
•
DOI:
- 10.1103/PhysRevC.49.1908

Memory effects in nuclear fragmentation

M. Colonna
(
- INFN, Catania and
- INFN, LNS and
- GANIL
)
,
M. Di Toro
(
- INFN, Catania and
- Catania U.
)
,
A. Guarnera
(
- INFN, Catania and
- Catania U. and
- GANIL
)

- Nucl.Phys.A 580 (1994) 312-322
•
DOI:
- 10.1016/0375-9474(94)90776-5

3D stochastic mean-field simulations of the spinodal fragmentation of dilute nuclei

- Phys.Lett.B 373 (1996) 267-274
•
DOI:
- 10.1016/0370-2693(96)00152-9

Fluctuations and multifragmentation within dynamical approaches

M. Colonna

- Nucl.Phys.A 630 (1998) 136-147
•
DOI:
- 10.1016/S0375-9474(97)00750-1

Mean field instabilities in dissipative heavy ion collisions

M. Colonna
(
- GANIL and
- INFN, LNS and
- Catania U.
)
,
M. Di Toro
(
- INFN, LNS and
- Catania U.
)
,
A. Guarnera
(
- GANIL and
- INFN, LNS and
- Catania U.
)

- Nucl.Phys.A 589 (1995) 160-174
•
DOI:
- 10.1016/0375-9474(95)00066-A

Physics from collisions below 200 MeV/u

Dominique Durand

- Nucl.Phys.A 630 (1998) 52-66
•
DOI:
- 10.1016/S0375-9474(97)00743-4

Disappearance of the Isospin Dependence of Multifragment Production

M.L. Miller
(
- Michigan State U., NSCL and
- Michigan State U.
)
,
O. Bjarki
(
- Michigan State U., NSCL and
- Michigan State U.
)
,
D.J. Magestro
(
- Michigan State U., NSCL and
- Michigan State U.
)
,
R. Pak
(
- Michigan State U., NSCL and
- Michigan State U.
)
,
N.T.B. Stone
(
- Michigan State U., NSCL and
- Michigan State U.
)

et al.

- Phys.Rev.Lett. 82 (1999) 1399-1401
•
DOI:
- 10.1103/PhysRevLett.82.1399

Transverse flows in charge asymmetric collisions

- Phys.Lett.B 461 (1999) 9-14
•
DOI:
- 10.1016/S0370-2693(99)00835-7