constants.hpp

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#pragma once
 
#include <gsl/gsl_const_cgsm.h>
#include <gsl/gsl_const_num.h>
#include <gsl/gsl_math.h>
 
namespace kariba {
 
namespace constants {
    const double kpc = 1e3 * GSL_CONST_CGSM_PARSEC;
    const double cee = GSL_CONST_CGSM_SPEED_OF_LIGHT;
    const double cee_cee = cee * cee;
    const double emgm = GSL_CONST_CGSM_MASS_ELECTRON;
    const double pmgm = GSL_CONST_CGSM_MASS_PROTON;
    const double kboltz = GSL_CONST_CGSM_BOLTZMANN;
    const double kboltz_kev2erg = 1.6022e-9;    
    const double gr_to_kev = 5.6095883571872e+29;
    const double me_kev = 511.0;
    const double emerg = GSL_CONST_CGSM_MASS_ELECTRON * GSL_CONST_CGSM_SPEED_OF_LIGHT *
                         GSL_CONST_CGSM_SPEED_OF_LIGHT;
    const double pi = M_PI;
    const double charg = 4.8e-10;
    const double sigtom = GSL_CONST_CGSM_THOMSON_CROSS_SECTION;
    const double herg = GSL_CONST_CGSM_PLANCKS_CONSTANT_H;
    const double hkev = GSL_CONST_CGSM_PLANCKS_CONSTANT_H * 6.2415e8;
    const double mjy = 1.e-26;
    const double re0 = 2.81794e-13;
    const double gconst = GSL_CONST_CGSM_GRAVITATIONAL_CONSTANT;
    const double sbconst = GSL_CONST_CGSM_STEFAN_BOLTZMANN_CONSTANT;
    const double aconst = 7.56e-15;
    const double msun = GSL_CONST_CGSM_SOLAR_MASS;
    const double erg = 6.24e11;               
    const double mprotTeV = 938.272046e-6;    
    const double mpionTeV = 139.57e-6;        
    const double Kpp = 0.5;                   
    const double Kpi = 0.17;    
    const double hbar = herg / (2.0 * pi);    
    const double barn = 1.0e-24;
    const double mbarn = 1.e-3 * barn;
    const double sigmapp = 3.43e-26;    
 
}    // namespace constants
 
}    // namespace kariba