Class eos_quark_bag (o2scl)¶

class eos_quark_bag : public o2scl::eos_quark ¶

Simple bag model.

An equation of state with \( P=-B+P_{u,FG}+P_{d,FG}+P_{s,FG} \) where \( P_{i,FG} \) is the Fermi gas contribution from particle \( i \) and \( B \) is a density- and temperature-independent bag constant.

The finite temperature functions run the zero temperature code if the temperature is less than or equal to 0.

Public Functions

eos_quark_bag()¶

inline virtual ~eos_quark_bag()¶

virtual int calc_p(quark &u, quark &d, quark &s, thermo &th)¶: Calculate equation of state as a function of chemical potentials.

virtual int calc_e(quark &u, quark &d, quark &s, thermo &th)¶: Calculate equation of state as a function of density.

virtual int calc_temp_p(quark &u, quark &d, quark &s, double temper, thermo &th)¶

Calculate equation of state as a function of the chemical potentials.

This function returns zero (success) unless the call to quark::pair_mu() fails.

virtual int calc_temp_e(quark &u, quark &d, quark &s, double temper, thermo &th)¶

Calculate equation of state as a function of the densities.

This function returns zero (success) unless the call to quark::pair_density() fails.

inline virtual const char *type()¶: Return string denoting type (“eos_quark_bag”)

Public Members

double bag_constant¶: The bag constant in \( fm^{-4}\) (default \(200/(\hbar c) \)).