Description of light clusters in relativistic nuclear models

被引：26

作者：

Ferreira, Marcio ^{[1
]}

Providencia, Constanca ^{[1
]}

机构：

[1] Univ Coimbra, Dept Phys, Ctr Fis Computac, P-3004516 Coimbra, Portugal

来源：

PHYSICAL REVIEW C | 2012年 / 85卷 / 05期

关键词：

EQUATION-OF-STATE; PARAMETRIZATION; SUPERNOVA; PARTICLE; DENSITY; MATTER;

D O I：

10.1103/PhysRevC.85.055811

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Light clusters are included in the equation of state of nuclear matter within the relativistic mean-field theory. The effect of the cluster-meson coupling constants on the dissolution density is discussed. Theoretical and experimental constraints are used to fix the cluster-meson couplings. The relative light cluster fractions are calculated for asymmetric matter in chemical equilibrium at finite temperature. It is found that above T = 5MeV deuterons and tritons are the clusters in larger abundances. The results do not depend strongly on the relativistic mean-field interaction chosen.

引用

页数：10

共 21 条

[1] Influence of light nuclei on neutrino-driven supernova outflows [J].

Arcones, A. ;

Martinez-Pinedo, G. ;

O'Connor, E. ;

Schwenk, A. ;

Janka, H. -Th. ;

Horowitz, C. J. ;

Langanke, K. .

PHYSICAL REVIEW C, 2008, 78 (01)

[2] The AME2003 atomic mass evaluation (II). Tables, graphs and references [J].

Audi, G ;

Wapstra, AH ;

Thibault, C .

NUCLEAR PHYSICS A, 2003, 729 (01) :337-676

[3] Light clusters in nuclear matter and the "pasta" phase [J].

Avancini, S. S. ;

Barros, C. C., Jr. ;

Brito, L. ;

Chiacchiera, S. ;

Menezes, D. P. ;

Providencia, C. .

PHYSICAL REVIEW C, 2012, 85 (03)

[4] α particles and the "pasta" phase in nuclear matter [J].

Avancini, S. S. ;

Barros, C. C., Jr. ;

Menezes, D. P. ;

Providencia, C. .

PHYSICAL REVIEW C, 2010, 82 (02)

[5] The α-particle in nuclear matter [J].

Beyer, M ;

Sofianos, SA ;

Kuhrts, C ;

Röpke, G ;

Schuck, P .

PHYSICS LETTERS B, 2000, 488 (3-4) :247-253

[6] RELATIVISTIC CALCULATION OF NUCLEAR-MATTER AND NUCLEAR SURFACE [J].

BOGUTA, J ;

BODMER, AR .

NUCLEAR PHYSICS A, 1977, 292 (03) :413-428

[7] Relativistic effective interaction for nuclei, giant resonances, and neutron stars [J].

Fattoyev, F. J. ;

Horowitz, C. J. ;

Piekarewicz, J. ;

Shen, G. .

PHYSICAL REVIEW C, 2010, 82 (05)

[8] Experimental Determination of In-Medium Cluster Binding Energies and Mott Points in Nuclear Matter [J].

Hagel, K. ;

Wada, R. ;

Qin, L. ;

Natowitz, J. B. ;

Shlomo, S. ;

Bonasera, A. ;

Roepke, G. ;

Typel, S. ;

Chen, Z. ;

Huang, M. ;

Wang, J. ;

Zheng, H. ;

Kowalski, S. ;

Bottosso, C. ;

Barbui, M. ;

Rodrigues, M. R. D. ;

Schmidt, K. ;

Fabris, D. ;

Lunardon, M. ;

Moretto, S. ;

Nebbia, G. ;

Pesente, S. ;

Rizzi, V. ;

Viesti, G. ;

Cinausero, M. ;

Prete, G. ;

Keutgen, T. ;

El Masri, Y. ;

Majka, Z. .

PHYSICAL REVIEW LETTERS, 2012, 108 (06)

[9] Light nuclei in supernova envelopes: A quasiparticle gas model [J].

Heckel, Stefan ;

Schneider, Philipp P. ;

Sedrakian, Armen .

PHYSICAL REVIEW C, 2009, 80 (01)

[10] Light clusters in nuclear matter: Excluded volume versus quantum many-body approaches [J].

Hempel, Matthias ;

Schaffner-Bielich, Juergen ;

Typel, Stefan ;

Roepke, Gerd .

PHYSICAL REVIEW C, 2011, 84 (05)

← 1 2 3 →