/* This is the header file for functions that specify 
   the born contribution to the elementary pion photoproduction t matrix. */

#ifndef t_piprod_born_rel_h
#define t_piprod_born_rel_h


#include <default.h>
#include <complex.h>
#include <vector.h>
#include <em_piprod_multipoles_rel.h>
#include <t_piprod_parameters.h>




dcomplex t_l_ppim_born_rel(int lam, vec p_pi, vec k_ga, vec p_nu,
		           double po_s, double E_s, double po_u, double E_u);
vec t_k_ppim_born_rel(int lam, vec p_pi, vec k_ga, vec p_nu, double Q_sqr,
		      double po_s, double E_s, double po_u, double E_u);

dcomplex t_l_npip_born_rel(int lam, vec p_pi, vec k_ga, vec p_nu,
		           double po_s, double E_s, double po_u, double E_u);
vec t_k_npip_born_rel(int lam, vec p_pi, vec k_ga, vec p_nu, double Q_sqr,
		      double po_s, double E_s, double po_u, double E_u);



dcomplex t_l_ppio_born_rel(int lam, vec p_pi, vec k_ga, vec p_nu,
		           double po_s, double E_s, double po_u, double E_u);
vec t_k_ppio_born_rel(int lam, vec p_pi, vec k_ga, vec p_nu, double Q_sqr,
		      double po_s, double E_s, double po_u, double E_u);

dcomplex t_l_npio_born_rel(int lam, vec p_pi, vec k_ga, vec p_nu,
		           double po_s, double E_s, double po_u, double E_u);
vec t_k_npio_born_rel(int lam, vec p_pi, vec k_ga, vec p_nu, double Q_sqr,
		      double po_s, double E_s, double po_u, double E_u);


/* ********************************************************************* */
/* ********************************************************************* */


dcomplex t_l_ppio_ompiga_rel(int lam, vec p_pi, vec k_ga, vec p_nu,
                             double pi_en, double ga_en);
vec t_k_ppio_ompiga_rel(int lam, vec p_pi, vec k_ga, vec p_nu,
                        double pi_en, double ga_en);

dcomplex t_l_npio_ompiga_rel(int lam, vec p_pi, vec k_ga, vec p_nu,
                             double pi_en, double ga_en);
vec t_k_npio_ompiga_rel(int lam, vec p_pi, vec k_ga, vec p_nu,
                        double pi_en, double ga_en);

/* ********************************************************************* */

dcomplex t_l_ppim_rhopiga_rel(int lam, vec p_pi, vec k_ga, vec p_nu,
                              double pi_en, double ga_en);
vec t_k_ppim_rhopiga_rel(int lam, vec p_pi, vec k_ga, vec p_nu,
                         double pi_en, double ga_en);

dcomplex t_l_npip_rhopiga_rel(int lam, vec p_pi, vec k_ga, vec p_nu,
                              double pi_en, double ga_en);
vec t_k_npip_rhopiga_rel(int lam, vec p_pi, vec k_ga, vec p_nu,
                         double pi_en, double ga_en);

dcomplex t_l_ppio_rhopiga_rel(int lam, vec p_pi, vec k_ga, vec p_nu,
                              double pi_en, double ga_en);
vec t_k_ppio_rhopiga_rel(int lam, vec p_pi, vec k_ga, vec p_nu,
                         double pi_en, double ga_en);

dcomplex t_l_npio_rhopiga_rel(int lam, vec p_pi, vec k_ga, vec p_nu,
                              double pi_en, double ga_en);
vec t_k_npio_rhopiga_rel(int lam, vec p_pi, vec k_ga, vec p_nu,
                         double pi_en, double ga_en);

#endif