Abstract.
We investigate properties and the distribution of light nuclei (A≤4) in symmetric nuclear matter of finite temperature within a microscopic framework. For this purpose we have solved few-body Alt-Grassberger-Sandhas-type equations for quasi-nucleons that include self-energy corrections and Pauli blocking in a systematic way. In a statistical model we find a significant influence in the composition of nuclear matter if medium effects are included in the microscopic calculation of nuclei. If multiplicities are frozen out at a certain time (or volume), we expect significant consequences for the formation of light fragments in a heavy ion collision. As a consequence of the systematic inclusion of medium effects, the ordering of multiplicities becomes opposite to the law-of-mass action of ideal components. This is necessary to explain the large abundance of α-particles in a heavy ion collision that are otherwise largely suppressed in an ideal equilibrium scenario.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
P. Danielewicz, G.F. Bertsch, Nucl. Phys. A 533, 712 (1991).
P. Danielewicz, Q. Pan, Phys. Rev. C 46, 2002 (1992).
H. Stöcker, W. Greiner, Phys. Rep. 137, 277 (1986).
C. Fuchs, H.H. Wolter, Nucl. Phys. A 589, 732 (1995).
M. Beyer, C. Kuhrts, G. Röpke, P.D. Danielewicz, Phys. Rev. C 63, 034605 (2001).
J. Aichelin, Phys. Rep. 202, 233 (1991).
G. Peilert , Phys. Rev. C 46, 1457 (1992).
R. Nebauer, J. Aichelin, Nucl. Phys. A 650, 65 (1999)
INDRA Collaboration (D. Gorio ), Eur. Phys. J. A 7, 245 (2000), and references therein.
INDRA Collaboration (S. Hudan ), Phys. Rev. C 67, 064613 (2003).
INDRA Collaboration (B. Borderie ), Phys. Lett. B 388, 224 (1996).
INDRA Collaboration (B. Borderie ), Phys. Lett. B 353, 27 (1995).
A.Z. Mekjan, Phys. Rev. C 17, 1051 (1978).
R.K. Tripathi, L.W. Townsend, Phys. Rev. C 50, R7 (1994).
J.P. Bondorf, A.S. Botvina, A.S. Iljinov, I.N. Mishustin, K. Sneppen, Phys. Rep. 257, 133 (1995).
M. Beyer, W. Schadow, C. Kuhrts, G. Röpke, Phys. Rev. C 60, 034004 (1999).
M. Beyer, S.A. Sofianos, C. Kuhrts, G. Röpke, P. Schuck, Phys. Lett. B 488, 247 (2000).
Chr. Kuhrts, PhD Thesis: ‘‘Deuteron production in heavy ion reactions’’, Rostock, 2000.
For a textbook treatment see, e.g., L.P. Kadanoff, G. Baym, Quantum Theory of Many-Particle Systems (Mc Graw-Hill, New York, 1962)
See, e.g., J. Dukelsky, G. Röpke, P. Schuck, Nucl. Phys. A 628, 17 (1998).
M. Beyer, G. Röpke, A. Sedrakian, Phys. Lett. B 376, 7 (1996).
J. Eichler, T. Marumori, K. Takada, Prog. Theor. Phys. 40, 60 (1968).
P. Schuck, F. Villars, P. Ring, Nucl. Phys. A 208, 302 (1973).
M. Schmidt, G. Röpke, H. Schulz, Ann. Phys. (N.Y.) 202, 57 (1990).
E.O. Alt, P. Grassberger, W. Sandhas, Nucl. Phys. B 2, 167 (1967).
W. Sandhas, Acta Phys. Austriaca, Suppl. XIII, 679 (1974).
E.O. Alt, P. Grassberger, W. Sandhas, Report E4-6688, JINR, Dunba 1972 and in Few Particle Problems in The Nuclear Interaction, edited by I. Slaus (North Holland, Amsterdam 1972) p. 299.
W. Sandhas, Czech. J. Phys. B 25, 251 (1975).
H.A. Bethe, J. Goldstone, Proc. R. Soc. A 238, 551 (1957).
S. Sofianos, N.J. McGurk, H. Fiedeldey, Nucl. Phys. A 318, 295 (1979)
Y. Yamaguchi, Phys. Rev. 95, 1628 (1954).
R.A. Malfliet, J. Tjon, Nucl. Phys. A 127, 161 (1969).
S. Mattiello, diploma thesis: ‘‘Production of three-body clusters in asymetric matter’’ (in Italian), Trento, 2000, unpublished.
M. Beyer, S.A. Sofianos, J. Phys. G 27, 2081 (2001).
V.N. Efimov, Yad. Fiz. 12, 1080 (1970) (Sov. J. Nuc. Phys. 12, 589 (1971)).
A. Schnell, PhD Thesis, Rostock, 1999.
Author information
Authors and Affiliations
Corresponding author
Additional information
A. Molinari
Rights and permissions
About this article
Cite this article
Beyer, M., Strauss, S., Schuck, P. et al. Light clusters in nuclear matter of finite temperature. Eur. Phys. J. A 22, 261–269 (2004). https://doi.org/10.1140/epja/i2003-10237-5
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1140/epja/i2003-10237-5