Abstract.
In this report, we review the isospin dependence of various forms of the collective flow in heavy-ion reactions from Fermi to relativistic energies. The emphasis will be on suggested possible applications in directly exploring the underlying isovector potential and thus the Equation of State (EoS) of asymmetric nuclear matter, in particular in density regions far away from normal conditions. We also discuss forthcoming challenges and opportunities provided by high-energy radioactive beams.
Similar content being viewed by others
References
H. Stöcker, W. Greiner, Phys. Rep. 137, 277 (1986).
P. Danielewicz, Q. Pan, Phys. Rev. C 46, 2002 (1992).
S. Das Gupta, G.W. Westfall, Phys. Today 46, 34 (1993).
P. Danielewicz, Nucl. Phys. A 685, 368c (2001).
P. Danielewicz, R. Lacey, W.G. Lynch, Science 298, 1592 (2002) and references therein.
A.E.L. Dieperink, Y. Dewulf, D. Van Deck, M. Waroquier, V. Rodin, Phys. Rev. C 68, 064307 (2003).
D. Vautherin, D.M. Brink, Phys. Rev. C 3, 676 (1972).
H. Krivine, J. Treiner, O. Bohigas, Nucl. Phys. A 336, 155 (1980).
E. Chabanat, P. Bonche, P. Haensel, J. Meyer, R. Schaeffer, Nucl. Phys. A 627, 710 (1997).
E. Chabanat, P. Bonche, P. Haensel, J. Meyer, R. Schaeffer, Nucl. Phys. A 635, 231 (1998).
F. Douchin, P. Haensel, J. Meyer, Nucl. Phys. A 665, 419 (2000).
I. Bombaci, T.T.S. Kuo, U. Lombardo, Phys. Rep. 242, 165 (1994).
I. Bombaci, Phys. Rev. C 55, 1 (1997).
I. Bombaci, EoS for isospin-asymmetric nuclear matter for astrophysical applications, in Isospin Physics in Heavy-ion Collisions at Intermediate Energies, edited by Bao-An Li, W. Udo Schröder (Nova Science Publishers, New York, 2001) pp. 35-81 and references therein.
We remark here that also all relativistic mean-field approaches in the presently used approximation scheme are predicting a stiff-like symmetry term, proportional to the baryon density, coming from the $\rho$-meson field contribution, see ref. YoshidaPRC58. Actually a superstiff-like behaviour can be obtained when a coupling to the scalar charged meson $\delta$ is added, see refs. KubisPLB399,LiuboPRC65,GrecoPRC67.
S. Yoshida, H. Sagawa, N. Takigawa, Phys. Rev. C 58, 2796 (1998).
S. Kubis, M. Kutschera, Phys. Lett. B 399, 191 (1997).
B. Liu, V. Greco, V. Baran, M. Colonna, M. Di Toro, Phys. Rev. C 65, 045201 (2002).
V. Greco, M. Colonna, M. Di Toro, F. Matera, Phys. Rev. C 67, 015203 (2003).
B.-A. Li, C.M. Ko, W. Bauer, Int. J. Mod. Phys. E 7, 147 (1998).
Bao-An Li, W. Udo Schröder (Editors), Isospin Physics in Heavy-ion Collisions at Intermediate Energies (Nova Science Publishers, New York, 2001).
M. Di Toro, V. Baran, M. Colonna, V. Greco, S. Maccarone, M. Cabibbo, Eur. Phys. J. A 13, 155 (2002).
V. Baran, M. Colonna, V. Greco, M. Di Toro, Phys. Rep. 410, 335 (2005).
M. Lopez-Quelle, S. Marcos, R. Niembro, A. Bouyssy, N. Van Giai, Nucl. Phys. A 483, 479 (1988).
Bao-An Li, Nucl. Phys. A 681, 434c (2001).
R.J. Furnstahl, Nucl. Phys. A 706, 85 (2002).
L.W. Chen, C.M. Ko, B.-A. Li, Phys. Rev. Lett. 94, 03701 (2005).
M. Prakash, Phys. Rep. 280, 1 (1997).
B.-A. Li, Phys. Rev. Lett. 85, 4221 (2000).
P. Danielewicz, G. Odyniec, Phys. Lett. B 157, 146 (1985).
B. Zhang, M. Gyulassy, C.M. Ko, Phys. Lett. B 455, 45 (1999)
B.-A. Li, A.T. Sustich, Phys. Rev. Lett. 82, 5004 (1999).
J.Y. Ollitrault, Phys. Rev. D 46, 229 (1992).
P. Danielewicz, Nucl. Phys. A 673, 375 (2000).
A.B. Larionov, W. Cassing, C. Greiner, U. Mosel, Phys. Rev. C 62, 064611 (2000).
T. Gaitanos, C. Fuchs, H.H. Wolter, A. Faessler, Eur. Phys. J. A 12, 421 (2001).
B.-A. Li, Z. Ren, C.M. Ko, S.J. Yennello, Phys. Rev. Lett. 76, 4492 (1996).
G. Westfall, Nucl. Phys. A 630, 27c (1998).
R. Pak, Phys. Rev. Lett. 78, 1022 (1997).
R. Pak, Phys. Rev. Lett. 78, 1026 (1997).
L. Scalone, M. Colonna, M. Di Toro, Phys. Lett. B 461, 9 (1999).
The reduced impact parameter is defined as $b_{red} \equiv b/b_{max}$, where $b_{max}$ is the sum of the two nuclear radii.
B.-A. Li, A.T. Sustich, B. Zhang, Phys. Rev. C 64, 054604 (2001).
J. Rizzo, M. Colonna, M. Di Toro, V. Greco, Nucl. Phys. A 732, 202 (2004).
B.-A. Li, B. Das Champak, S. Das Gupta, C. Gale, Nucl. Phys. A 735, 563 (2004)
Bao-An Li, Phys. Rev. C 69, 064602 (2004).
M. Di Toro, M. Colonna, J. Rizzo, On the splitting of nucleon effective masses at high isospin density: reaction observables, Argonne/MSU/JINA/RIA Workshop on Reaction Mechanisms for Rare Isotope Beams, edited by B. Alex Brown, AIP Conf. Proc., Vol. 791 (AIP, 2005) pp. 70-82
W. Zuo, L.G. Cao, B.-A. Li, U. Lombardo, C.W. Shen, Phys. Rev. C 72, 014005 (2005).
E.N.E. van Dalen, C. Fuchs, A. Fässler, Phys. Rev. Lett. 95, 022302 (2005).
FOPI Collaboration (A. Andronic), Phys. Rev. C 67, 034907 (2003).
FOPI Collaboration (A. Andronic), Phys. Lett. B 612, 173 (2005).
V. Greco, Diploma Thesis (1997)
P. Sapienza, Phys. Rev. Lett. 87, 2701 (2001).
C. Gale, G.F. Bertsch, S. Das Gupta, Phys. Rev. C 41, 1545 (1990).
I. Bombaci, Nucl. Phys. A 583, 623 (1995).
V. Greco, V. Baran, M. Colonna, M. Di Toro, T. Gaitanos, H.H. Wolter, Phys. Lett. B 562, 215 (2003)
B.A. Li, preprint nucl-th/0504069
B.A. Li, G.C. Yong, W. Zuo, Phys. Rev. C 71, 044604 (2005).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Di Toro, M., Yennello, S.J. & Li, B.A. Isospin flows. Eur. Phys. J. A 30, 153–163 (2006). https://doi.org/10.1140/epja/i2006-10113-x
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1140/epja/i2006-10113-x