Delta isobars in relativistic mean-field models with σ-scaled hadron masses and couplings

被引：59
|
作者：
Kolomeitsev, E. E. [1 ]
Maslov, K. A. [2 ]
Voskresensky, D. N. [2 ]
机构：
[1] Matej Bel Univ, SK-97401 Banska Bystrica, Slovakia
[2] Natl Res Nucl Univ MEPhI, RU-115409 Moscow, Russia
来源：
NUCLEAR PHYSICS A | 2017年 / 961卷
基金：
俄罗斯基础研究基金会;
关键词：
Dense matter; Nuclear equation of state; Delta(1232) baryons; Neutron star mass; EQUATION-OF-STATE; NEUTRON-STARS; NUCLEAR-MATTER; RADIUS CONSTRAINTS; DENSE MATTER; SUM-RULES; SYMMETRY; HYPERONS; BARYON; PHYSICS;
D O I：
10.1016/j.nuclphysa.2017.02.004
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：
We extend the relativistic mean-field models with hadron masses and meson-baryon coupling constants dependent on the scalar sigma field, studied previously to incorporate Delta(1232) baryons. Available empirical information is analyzed to put constraints on the couplings of Delta s with meson fields. Conditions for the appearance of Delta s are studied. We demonstrate that with inclusion of the Delta s our equations of state continue to fulfill majority of known empirical constraints including the pressure-density constraint from heavy-ion collisions, the constraint on the maximum mass of the neutron stars, the direct Urea and the gravitational baryon mass ratio constraints. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：106 / 141
页数：36
相关论文
共 50 条
  • [41] Relativistic mean-field approach for Λ, Ξ, and Σ hypernuclei
    Liu, Z. -X.
    Xia, C. -J.
    Lu, W. -L.
    Li, Y. -X.
    Hu, J. N.
    Sun, T. -T.
    [J]. PHYSICAL REVIEW C, 2018, 98 (02)
  • [42] RELATIVISTIC MEAN-FIELD THEORY AND HYPERNUCLEI
    MARES, J
    JENNINGS, BK
    [J]. NUCLEAR PHYSICS A, 1995, 585 (1-2) : C347 - C348
  • [43] Relativistic mean-field calculation on Λ hypernuclei
    Shen, YS
    Ren, ZZ
    [J]. HIGH ENERGY PHYSICS & NUCLEAR PHYSICS-ENGLISH EDITION, 1997, 21 (04): : 47 - 53
  • [44] SYSTEMATICS OF LIGHT DEFORMED-NUCLEI IN RELATIVISTIC MEAN-FIELD MODELS
    FURNSTAHL, RJ
    PRICE, CE
    WALKER, GE
    [J]. PHYSICAL REVIEW C, 1987, 36 (06): : 2590 - 2600
  • [45] Relativistic mean-field hadronic models under nuclear matter constraints
    Dutra, M.
    Lourenco, O.
    Avancini, S. S.
    Carlson, B. V.
    Delfino, A.
    Menezes, D. P.
    Providencia, C.
    Typel, S.
    Stone, J. R.
    [J]. PHYSICAL REVIEW C, 2014, 90 (05):
  • [46] Regression analysis of the nuclear symmetry energy for relativistic mean-field models
    Bednarek, Ilona
    Olchawa, Wieslaw
    Sladkowski, Jan
    Syska, Jacek
    [J]. PHYSICAL REVIEW C, 2022, 106 (05)
  • [47] Hyperons in neutron star matter within relativistic mean-field models
    Oertel, M.
    Providencia, C.
    Gulminelli, F.
    Raduta, A. R.
    [J]. PHYSICS OF PARTICLES AND NUCLEI, 2015, 46 (05) : 830 - 834
  • [48] Hyperons in neutron star matter within relativistic mean-field models
    Oertel, M.
    Providencia, C.
    Gulminelli, F.
    Raduta, Ad R.
    [J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2015, 42 (07)
  • [49] Adjustment studies in self-consistent relativistic mean-field models
    Bürvenich, TJ
    Madland, DG
    Reinhard, PG
    [J]. NUCLEAR PHYSICS A, 2004, 744 : 92 - 107
  • [50] Consistent relativistic mean-field models constrained by GW170817
    Lourenco, Odilon
    Dutra, Mariana
    Lenzi, Cesar H.
    Flores, Cesar, V
    Menezes, Debora P.
    [J]. PHYSICAL REVIEW C, 2019, 99 (04)
12345