Equation of State Sub-Library: Version 0.910
Public Member Functions | Data Fields
ldrop_mass_pair Class Reference

Liquid drop model with pairing. More...

#include <ldrop_mass.h>

Inheritance diagram for ldrop_mass_pair:
ldrop_mass_skin ldrop_mass nuclear_mass_fit nuclear_mass_cont nuclear_mass nuclear_mass_info

Detailed Description

This class adds a pairing correction

\[ E_{\mathrm{pair}}/A = - \frac{\zeta}{2 A^{3/2}} \left[ \cos(Z \pi) + \cos(N \pi) \right] \]

where $ \zeta $ is stored in Epair. The trigonometric functions give the expected result for integer values of N and Z.

Definition at line 581 of file ldrop_mass.h.

Public Member Functions

virtual const char * type ()
 Return the type, "ldrop_mass_pair".
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_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

double Epair
 Pairing energy coefficient (default 13 MeV)
double pair
 Most recently computed pairing energy per baryon.

The documentation for this class was generated from the following file:
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Documentation generated with Doxygen. Provided under the GNU Free Documentation License (see License Information).

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