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Equation of State Sub-Library: Version 0.910
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More advanced liquid drop model. More...
#include <ldrop_mass.h>
In addition to the physics in ldrop_mass, this includes corrections for
Bulk energy
The central densities and radii, are all determined in the same way as ldrop_mass, except that now
, where
is stored in doi . Note that this means
.
If new_skin_mode is false, then the bulk energy is also computed as in ldrop_mass. Otherwise, the number of nucleons in the core is computed with
and . The core contribution to the bulk energy is
then the skin contribution is
and
Surface energy
If full_surface is false, then the surface energy is just that from ldrop_mass , with an extra factor for the surface symmetry energy
where is unitless and stored in ss.
If full_surface is true, then the surface energy is modified by a cubic dependence for the medium and contains finite temperature corrections.
Coulomb energy
The Coulomb energy density (Ravenhall83) is
where the function is
This class takes .
Todos and Future
References
Designed in Steiner08 and Souza09 based in part on Lattimer85 and Lattimer91 .
Definition at line 497 of file ldrop_mass.h.
Public Member Functions | |
virtual const char * | type () |
Return the type, "ldrop_mass_skin" . | |
virtual int | fit_fun (size_t nv, const ovector_base &x) |
Fix parameters from an array for fitting. | |
virtual int | guess_fun (size_t nv, ovector_base &x) |
Fill array with guess from present values for fitting. | |
virtual double | drip_binding_energy_d (double Z, double N, double npout, double nnout, double chi) |
Return the free binding energy of a nucleus in a many-body environment. | |
virtual double | drip_binding_energy_full_d (double Z, double N, double npout, double nnout, double chi, double T) |
Return the free binding energy of a nucleus in a many-body environment. | |
Data Fields | |
bool | full_surface |
If true, properly fix the surface for the pure neutron matter limit (default true) | |
bool | new_skin_mode |
If true, separately compute the skin for the bulk energy (default false) | |
double | doi |
Ratio of ![]() | |
double | ss |
Surface symmetry energy (default 0.5) | |
bool | rel_vacuum |
If true, define the nuclear mass relative to the vacuum (default true) | |
double | Tchalf |
The critical temperature of isospin-symmetric matter in ![]() ![]() | |
Input parameters for temperature dependence | |
double | pp |
Exponent (default 1.25) | |
double | a0 |
Coefficient (default 0.935) | |
double | a2 |
Coefficient (default -5.1) | |
double | a4 |
Coefficient (default -1.1) |
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