/* This is the header file that contains the parameters for 
   deeply virtual compton scattering. */

/**************************************************************************/
/*                                                                        */
/* IMPORTANT : all dimensional quantities in this file                    */
/*             are in units GeV                                           */  
/*                                                                        */
/**************************************************************************/

#ifndef dvcs_parameters_h
#define dvcs_parameters_h



#define ELEC 0.302862     
                          /* electric charge e */
			  /* with pow(e, 2) / (4 * PI) = 1 / 137 */

#define M_ELECTRON 0.000511       
                          /* 0.000511 for electron */
                          /* mass of electron in GeV */
#define M_MUON .105658       
                          /* .105658 for muon */
                          /* mass of muon in GeV */

#define M_ELEC M_ELECTRON      
                          /* mass of lepton in GeV */

  
#define NU_M .93827231    /* .93827231 */
                          /* nucleon mass in GeV */
                                                      
#define P_MAGN 2.79       /* magnetic moment of proton */
#define N_MAGN -1.91      /* magnetic moment of neutron */

                         
#define DEL_M 1.232       /* 1.232 */

#define GM_p33 2.80       /* 2.80 */

#endif