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Chernomoretz, A.; Ison, M.; Ortiz, S.; Dorso, C.O. "Nonequilibrium effects in fragmentation" (2001) Physical Review C - Nuclear Physics. 64(2):246061-246069
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Abstract:

We study, using molecular dynamics techniques, how boundary conditions affect the process of fragmentation of finite, highly excited, Lennard-Jones systems. We analyze the behavior of the caloric curves (CC), the associated thermal response functions (TRF), and cluster mass distributions for constrained and unconstrained hot drops. It is shown that the resulting CC for the constrained case differ from the one in the unconstrained case, mainly in the presence of a "vapor branch." This branch is absent in the free expanding case even at high energies. This effect is traced to the role played by the collective expansion motion. On the other hand, we found that the recently proposed characteristic features of a first order phase transition taking place in a finite isolated system, i.e., abnormally large kinetic energy fluctuations and a negative branch in the TRF, are present for the constrained (dilute) as well as the unconstrained case. The microscopic origin of this behavior is also analyzed.

Registro:

Documento: Artículo
Título:Nonequilibrium effects in fragmentation
Autor:Chernomoretz, A.; Ison, M.; Ortiz, S.; Dorso, C.O.
Filiación:Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellon I, Ciudad Universitaria, Nuñez, 1428 Buenos Aires, Argentina
Año:2001
Volumen:64
Número:2
Página de inicio:246061
Página de fin:246069
DOI: http://dx.doi.org/10.1103/PhysRevC.64.024606
Título revista:Physical Review C - Nuclear Physics
Título revista abreviado:Phys. Rev. C Nucl. Phys.
ISSN:05562813
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562813_v64_n2_p246061_Chernomoretz

Referencias:

  • Bonsera, A., Bruno, M., Dorso, C.O., Mastinu, P.F., (2000) Riv. Nuovo Cimento, 23, p. 2
  • Lopez, J., Dorso, C.O., (2000) Phase Transformations in Nuclear Matter, , World Scientific, Singapore
  • Pochodzalla, J., (1995) Phys. Rev. Lett., 75, p. 1040
  • Gross, D.H.E., (1997) Phys. Rep., 279, p. 119
  • Gulminelli, F., Chomaz, Ph., Duflot, V., (2000) Europhys. Lett., 50, p. 434
  • D'Agostino, M., (2000) Phys. Lett. B, 473, p. 219
  • Hirsh, A.S., (1984) Phys. Rev. C, 29, p. 508
  • Elliot, J.B., (2000) Phys. Rev. Lett., 85, p. 1194
  • Balenzuela, P., Chernomoretz, A., Dorso, C.O., Phys. Rev. C, , submitted
  • Campi, X., Krivine, H., (1986) Z. Phys., 344, p. 81
  • Gulminelli, F., Chomaz, Ph., (1988) Phys. Rev. C, 38, p. 1297
  • Gulminelli, F., Chomaz, Ph., (1999) Phys. Rev. Lett., 82, p. 1402
  • Carmona, J.M., Michel, N., Richert, J., Wagner, P., (2000) Phys. Rev. C, 61, p. 37304
  • Bondorf, J.P., Botvina, A.S., Ijilinov, A.S., Mishustin, I.N., Sneppen, K., (1995) Phys. Rep., 257, p. 133
  • Strachan, A., Dorso, C.O., (1997) Phys. Rev. C, 55, p. 775
  • Strachan, A., Dorso, C.O., (1999) Phys. Rev. C, 59, p. 285
  • Frenkel, D., Smit, B., (1996) Understanding Molecular Simulation, From Algorithms to Applications, , Academic, New York
  • Strachan, A., Dorso, C.O., (1997) Phys. Rev. C, 56, p. 1
  • Chomaz, Ph., Gulminelli, F., (1999) Nucl. Phys., A647, p. 153
  • Labestie, P., Whetten, R.L., (1990) Phys. Rev. Lett., 65, p. 1567

Citas:

---------- APA ----------
Chernomoretz, A., Ison, M., Ortiz, S. & Dorso, C.O. (2001) . Nonequilibrium effects in fragmentation. Physical Review C - Nuclear Physics, 64(2), 246061-246069.
http://dx.doi.org/10.1103/PhysRevC.64.024606
---------- CHICAGO ----------
Chernomoretz, A., Ison, M., Ortiz, S., Dorso, C.O. "Nonequilibrium effects in fragmentation" . Physical Review C - Nuclear Physics 64, no. 2 (2001) : 246061-246069.
http://dx.doi.org/10.1103/PhysRevC.64.024606
---------- MLA ----------
Chernomoretz, A., Ison, M., Ortiz, S., Dorso, C.O. "Nonequilibrium effects in fragmentation" . Physical Review C - Nuclear Physics, vol. 64, no. 2, 2001, pp. 246061-246069.
http://dx.doi.org/10.1103/PhysRevC.64.024606
---------- VANCOUVER ----------
Chernomoretz, A., Ison, M., Ortiz, S., Dorso, C.O. Nonequilibrium effects in fragmentation. Phys. Rev. C Nucl. Phys. 2001;64(2):246061-246069.
http://dx.doi.org/10.1103/PhysRevC.64.024606