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Header <boost/units/systems/si/codata/neutron_constants.hpp>

CODATA recommended values of fundamental atomic and nuclear constants CODATA 2006 values as of 2007/03/30

namespace boost {
  namespace units {
    namespace si {
      namespace constants {
        namespace codata {
           BOOST_UNITS_PHYSICAL_CONSTANT(m_n, quantity< mass >, 
                                         1.674927211e-27 *, 8.4e-35 *);

          // neutron-electron mass ratio 
           BOOST_UNITS_PHYSICAL_CONSTANT(m_n_over_m_e, 
                                         quantity< dimensionless >, 
                                         1838.6836605 * dimensionless, 
                                         1.1e-6 * dimensionless);

          // neutron-muon mass ratio 
           BOOST_UNITS_PHYSICAL_CONSTANT(m_n_over_m_mu, 
                                         quantity< dimensionless >, 
                                         8.89248409 * dimensionless, 
                                         2.3e-7 * dimensionless);

          // neutron-tau mass ratio 
           BOOST_UNITS_PHYSICAL_CONSTANT(m_n_over_m_tau, 
                                         quantity< dimensionless >, 
                                         0.528740 * dimensionless, 
                                         8.6e-5 * dimensionless);

          // neutron-proton mass ratio 
           BOOST_UNITS_PHYSICAL_CONSTANT(m_n_over_m_p, 
                                         quantity< dimensionless >, 
                                         1.00137841918 * dimensionless, 
                                         4.6e-10 * dimensionless);

          // neutron molar mass 
           BOOST_UNITS_PHYSICAL_CONSTANT(M_n, quantity< mass_over_amount >, 
                                         1.00866491597e-3 *kilograms/ mole, 
                                         4.3e-13 *kilograms/ mole);

          // neutron Compton wavelength 
           BOOST_UNITS_PHYSICAL_CONSTANT(lambda_C_n, quantity< length >, 
                                         1.3195908951e-15 * meters, 
                                         2.0e-24 * meters);

          // neutron magnetic moment 
           BOOST_UNITS_PHYSICAL_CONSTANT(mu_n, 
                                         quantity< energy_over_magnetic_flux_density >, 
                                         -0.96623641e-26 *joules/ tesla, 
                                         2.3e-33 *joules/ tesla);

          // neutron g-factor 
           BOOST_UNITS_PHYSICAL_CONSTANT(g_n, quantity< dimensionless >, 
                                         -3.82608545 * dimensionless, 
                                         9.0e-7 * dimensionless);

          // neutron-electron magnetic moment ratio 
           BOOST_UNITS_PHYSICAL_CONSTANT(mu_n_over_mu_e, 
                                         quantity< dimensionless >, 
                                         1.04066882e-3 * dimensionless, 
                                         2.5e-10 * dimensionless);

          // neutron-proton magnetic moment ratio 
           BOOST_UNITS_PHYSICAL_CONSTANT(mu_n_over_mu_p, 
                                         quantity< dimensionless >, 
                                         -0.68497934 * dimensionless, 
                                         1.6e-7 * dimensionless);

          // neutron-shielded proton magnetic moment ratio 
           BOOST_UNITS_PHYSICAL_CONSTANT(mu_n_over_mu_p_prime, 
                                         quantity< dimensionless >, 
                                         -0.68499694 * dimensionless, 
                                         1.6e-7 * dimensionless);

          // neutron gyromagnetic ratio 
           BOOST_UNITS_PHYSICAL_CONSTANT(gamma_n, 
                                         quantity< frequency_over_magnetic_flux_density >, 
                                         1.83247185e8/second/ tesla, 
                                         4.3e1/second/ tesla);
        }
      }
    }
  }
}

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