Prev Next



This table corresponds to the zero temperature and beta-equilibrium unified EoS by Baym et al. [ BFH_2019]. The EoS are divided into three distinct domains: the crust- nuclear liquid, hadron-quark crossover, and quark matter domains. For each domain we assign an equation of state as

Crust- nuclear liquid : Togashi EoS [TNTYST_17]
Crossover : QHC19C [BFH_2019]
Quark matter : QHC19C [BFH_2019]

The quark matter EoS (including up-, down-, and strange-quarks) in the QHC19 was calculated using the NJL model within the mean field approximation. As variable parameters, we choose g_V and H which quantify the strength of the repulsive density-density interaction and the attractive paring-interaction between quarks, respectively. We chose (g_V, H)=(1.00,1.55)G which is compatible with hadron physics. The QHC19C satisfies the empirical constraints from neutron stars as well as the causality and thermodynamic consistency.

Nparam = 1
Particles = npeNq
T min = 0.0
T max = 0.0
T pts = 1
nb min = 7.90e-11
nb max = 1.43e+00
nb pts = 180
Y min = 0.0
Y max = 0.0
Y pts = 1


References to the original work:
[TNTYST_17]   H. Togashi, K. Nakazato, Y. Takehara, S. Yamamuro, H. Suzuki and M. Takano, Nucl. Phys. A 961, 78 (2017)
[BHK_2018]   G. Baym, T. Hatsuda, T. Kojo, P.D. Powell, Y. Song, T. Takatsuka, Rept.Prog.Phys. 81, 056902 (2018)
[BFH_2019]   G. Baym, S. Furusawa, T. Hatsuda, T. Kojo, and H. Togashi, arxiv:1903.08963 (2019)

Data sheet

Data (contains all following files and data sheet)

The EoS "QHC19-C" has not eos.init file associated so computation is not possible.

Please contact develop.compose (at)


Calculation are reserved to logged members.

Please log in