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Abstract:

Cold and isospin-symmetric nuclear matter at sub-saturation densities is known to form the so-called pasta structures, which, in turn, are known to undergo peculiar phase transitions. Here we investigate if such pastas and their phase changes survive in isospin asymmetric nuclear matter, and whether the symmetry energy of such pasta configurations is connected to the isospin content, the morphology of the pasta and to the phase transitions. We find that indeed pastas are formed in isospin asymmetric systems with proton to neutron ratios of x=0.3, 0.4 and 0.5, densities in the range of 0.05 fm−3<ρ<0.08 fm−3, and temperatures T<2 MeV. Using tools (such as the caloric curve, Lindemann coefficient, radial distribution function, Kolmogorov statistic, and Euler functional) on the composition of the pasta, determined the existence of homogeneous structures, tunnels, empty regions, cavities and transitions among these regions. The symmetry energy was observed to attain different values in the different phases showing its dependence on the morphology of the nuclear matter structure. © 2018 Elsevier B.V.

Registro:

Documento: Artículo
Título:Phase transitions and symmetry energy in nuclear pasta
Autor:Dorso, C.O.; Frank, G.A.; López, J.A.
Filiación:Instituto de Física de Buenos Aires, Pabellón I, Ciudad Universitaria, Buenos Aires, 1428, Argentina
Unidad de Investigación y Desarrollo de las Ingenierías, Universidad Tecnológica Nacional, Facultad Regional Buenos Aires, Av. Medrano 951, Buenos Aires, 1179, Argentina
University of Texas at El Paso, El Paso, TX 79968, United States
Palabras clave:Nuclear pasta; Symmetry energy; Topological transition
Año:2018
Volumen:978
Página de inicio:35
Página de fin:64
DOI: http://dx.doi.org/10.1016/j.nuclphysa.2018.07.008
Título revista:Nuclear Physics A
Título revista abreviado:Nucl. Phys. A
ISSN:03759474
CODEN:NUPAB
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03759474_v978_n_p35_Dorso

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Citas:

---------- APA ----------
Dorso, C.O., Frank, G.A. & López, J.A. (2018) . Phase transitions and symmetry energy in nuclear pasta. Nuclear Physics A, 978, 35-64.
http://dx.doi.org/10.1016/j.nuclphysa.2018.07.008
---------- CHICAGO ----------
Dorso, C.O., Frank, G.A., López, J.A. "Phase transitions and symmetry energy in nuclear pasta" . Nuclear Physics A 978 (2018) : 35-64.
http://dx.doi.org/10.1016/j.nuclphysa.2018.07.008
---------- MLA ----------
Dorso, C.O., Frank, G.A., López, J.A. "Phase transitions and symmetry energy in nuclear pasta" . Nuclear Physics A, vol. 978, 2018, pp. 35-64.
http://dx.doi.org/10.1016/j.nuclphysa.2018.07.008
---------- VANCOUVER ----------
Dorso, C.O., Frank, G.A., López, J.A. Phase transitions and symmetry energy in nuclear pasta. Nucl. Phys. A. 2018;978:35-64.
http://dx.doi.org/10.1016/j.nuclphysa.2018.07.008