Abstract
Possible mechanisms of the emission of nuclear clusters in heavy-ion induced nuclear reactions are discussed in the context of the overall dissipative reaction environment. Essentials of model approaches to the reaction dynamics are briefly reviewed. Analysis of the overall reaction dynamics provides an estimate of time scales for cluster emission and the buildup or preexistence of nucleonic correlations. Experimental results demonstrate the presence of at least two different mechanisms of cluster emission. Energetic nuclear clusters are likely emitted during early stages of a nuclear reaction, containing memory of entrance-channel conditions. In addition, sequential, statistical cluster emission is observed from the hot remnants of projectile and target nuclei. The difficulty encountered previously by statistical models to describe statistical emission of massive clusters from excited nuclei is resolved in the framework of a simple interacting Fermi-gas model of expanded nuclear matter. It is suggested that sequential cluster emission is entropy-driven and can be understood in terms of a rearrangement of the surface of hot nuclei produced in energetic nuclear reactions.
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References
J. Schmelzer, G. Röpke, and R. Malinke, in Aggregation Phenomena in Complex Systems ( Wiley-VCH, Weinheim, 1999 ), p. 263.
B. Borderie, J. Phys. G: Nucl. Part. Phys. 28, R217 (2002).
W.U. Schröder and J. Huizenga, in Treatise on Heavy-Ion Science (Plenum Press, New York and London, 1984), Vol. 2.
B. Djerroud et al.,Phys. Rev. C64 034603 (2001).
J. Wilczynski, Phys. Lett. 47B, 484 (1973).
R. Dayras, Z.E. Switkowski, and S. Woosley, Nucl. Phys. A279, 70 (1977).
M.F. Rivet et al. (INDRA), Phys. Lett. B388, 219 (1996).
M. Robel, Ph.D. Thesis, Lawrence Berkeley Lab. preprint LBL-8181, (1979).
J. Randrup and R. Vandenbosch, Nucl. Phys. A474, 219 (1987).
J. Bondorf and others, Nucl. Phys. A333, 285 (1980).
J. Randrup, Nucl. Phys. A259, 253 (1976).
J. R.andrup, Nucl. Phys. A307, 319 (1978).
J. Randrup, Nucl. Phys. A327, 490 (1979).
J. Randrup, Nucl. Phys. A383, 468 (1982).
J. Randrup and B. Remaud, Nucl. Phys. A514, 339 (1990).
W.U. Schröder et al.,in Nuclear Fission and Heavy-Ion-Induced Reactions (Harwood, Nucl. Sci. Res. Conf. Ser., ADDRESS, 1987), Vol. 11, p. 255.
J. Blocki et al.,Ann. Phys. (N.Y.) 113 330 (1978).
Z. Sosin, Eur. Phys. J. All, 311 (2001).
G. Bertsch and S. DasGupta, Phys. Rep. 160, 189 (1988).
W. Bauer, Prog. Part. Nucl. Phys. 30, 45 (1991).
R. Balescu, in Statistical Dynamics, Matter out of Equilibrium (Imperial College Press, Univ. Libre de Bruxelles, 2000 ).
W. Bauer and G. Bertsch, Phys. Rev. Lett. 58, 863 (1987).
S. Ayik and C. Gregoire, Phys. Lett. 212B, 269 (1988).
P. Chomaz, G.F. Burgio, and J. Randrup, Phys. Lett. 254B, 340 (1991).
P. Chomaz et al.,Phys. Rev. Lett. 73 3512 (1994).
M. Colonna and P. Chomaz, Phys. Rev. C49, 1908 (1994).
M. Colonna et al.,Nucl. Phys. A642 449 (1998).
S. Chattopadhyay, Phys. Rev. C53, R1065 (1996).
V. Spicka, P. Lipaysky, and K. Morawetz, Phys. Rev. B55, 5084 (1997).
V. Spicka, P. Lipaysky, and K. Morawetz, Phys. Lett. 240A, 160 (1998).
G. Kortemeyer, F. Daffin, and W. Bauer, Phys. Lett. 374B, 25 (1996).
P. Danielewicz, in Proc. Int. Workshop Gross Properties Nuclei and Nucl. Excit. XXVII ( GSI, Darmstadt, 1999 ), Vol. 27, p. 263.
B. Li, C. Ko, and W. Bauer, Int. Jour. Mod. Phys. 7, 147 (1998).
K. Morawetz and P. Lipayski, Phys. Rev. C63, 61602 (2001).
J. Töke and W. Schröder, Phys. Rev. C in press (2002).
B. Li, private communication (2002).
G. Beauvais, D. Boal, and C. Wong, Phys. Rev. C35, 545 (1987).
J. Aichelin, Phys. Rep. 202, 233 (1991).
G. Peilert et al.,Phys. Rev. C46 1992 (1992).
C. Hartnack et al.,Eur. Phys. J. Al 151 (1998).
J. Lukasik, Ph.D. Thesis, Jagellonian University Cracow (1993).
O. Tursunov and O. Zhirov, Phys. Lett. 222, 110 (1989).
J. Aichelin, Univ. de Nantes, Ecole d. Mines, theory group website (2000).
A. Ono, H. Horiuchi, T. Maruyama, and A. Ohnishi, Prog. Theor. Phys. 87, 1185 (1992).
H. Feldmeier, Nucl. Phys. A586, 493 (1995).
D. Gross, Prog. Part. Nucl. Phys. 30, 155, and references cited (1993).
J. Bondorf et al., Phys. Rep. 257, 113 (1995).
L. Moretto and G. Wozniak, Annu. Rev. Nucl. Part. Sci. 43, 379 (1993), and references therein.
L. Moretto, J. Elliott, L. Phair, and G. Wozniak, Phys. Rev. C66, 41601R (2002).
S. Albergo, S. Costa, E. Constanzo, and A. Rubbino, Nuovo Cimento 89, 1 (1985).
J. Pochadzalla et al., Phys. Rev. 75, 1040 (1975).
D. Gross, Rep. Prog. Phys. 53, 605 (1990).
M. Kleine-Berkenbusch et al., Phys. Rev. Lett. 88, 22701 (2002).
J.B. Elliot et al., Phys. Rev. Lett. 88, 42701 (2002).
M.E. Fisher, Physics 3, 255 (1967).
W.A. Friedman, Phys. Rev. Lett. 60, 2125 (1988).
W.A. Friedman, Phys. Rev. C42, 667 (1990).
J. Töke, Nucl. Phys. A681, 374c (2001).
B. Li and W.U. Schröder, in Isospin Physics in Heavy-Ion Reactions at Intermediate Energies ( Nova Science Publishers, New York, 2001 ).
J. Töke, J. Lu, and W. Schröder, Phys. Rev. In press, (2003).
W.U. Schröder, Report DOE/ER/ 79048–1, (1995).
D. Stracener et al., Nucl. Instr. Meth. A294, 485 (1990).
W. Skulski, J. Töke, and W. Schröder, Phys. Rev. C59, R2130 (1999).
R. Planeta et al., Eur. Phys. J. All, 297 (2001).
M. Agostino et al., Phys. Lett. B473, 219 (2000).
R. Nebauer, A. Guertin, R. Puri, Ch. Hartnack, P.B. Gossiaux, and J. Aichelin, Proc. Int. Worksh. Gross Properties Nuclei and Nucl. Excit. XXVII, 263 (1999).
R. Nebauer and J. Aichelin, Nucl. Phys. A681, 353c (2001).
C. Dorso and J. Randrup, Phys. Lett. 215B, 611 (1988).
C. Dorso and J. Randrup, Phys. Lett. 232B, 29 (1980).
T. Dossing et al.,Nucl. Phys. A327, 490 (1979); ibid. A433, 280 (1985).
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Schröder, W.U., Tõke, J. (2004). Cluster Emission in Complex Nuclear Reactions. In: Morawetz, K. (eds) Nonequilibrium Physics at Short Time Scales. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-08990-3_22
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DOI: https://doi.org/10.1007/978-3-662-08990-3_22
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