| // Boost.Units - A C++ library for zero-overhead dimensional analysis and |
| // unit/quantity manipulation and conversion |
| // |
| // Copyright (C) 2003-2008 Matthias Christian Schabel |
| // Copyright (C) 2008 Steven Watanabe |
| // |
| // Distributed under the Boost Software License, Version 1.0. (See |
| // accompanying file LICENSE_1_0.txt or copy at |
| // http://www.boost.org/LICENSE_1_0.txt) |
| |
| #ifndef BOOST_UNITS_CODATA_NEUTRON_CONSTANTS_HPP |
| #define BOOST_UNITS_CODATA_NEUTRON_CONSTANTS_HPP |
| |
| #include <boost/units/static_constant.hpp> |
| |
| #include <boost/units/systems/detail/constants.hpp> |
| #include <boost/units/systems/si/amount.hpp> |
| #include <boost/units/systems/si/area.hpp> |
| #include <boost/units/systems/si/electric_charge.hpp> |
| #include <boost/units/systems/si/energy.hpp> |
| #include <boost/units/systems/si/frequency.hpp> |
| #include <boost/units/systems/si/length.hpp> |
| #include <boost/units/systems/si/mass.hpp> |
| #include <boost/units/systems/si/magnetic_flux_density.hpp> |
| #include <boost/units/systems/si/time.hpp> |
| #include <boost/units/systems/si/wavenumber.hpp> |
| |
| #include <boost/units/systems/si/codata/typedefs.hpp> |
| |
| /// \file |
| /// 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 { |
| |
| /// CODATA recommended values of the fundamental physical constants: NIST SP 961 |
| |
| /// neutron mass |
| BOOST_UNITS_PHYSICAL_CONSTANT(m_n,quantity<mass>,1.674927211e-27*kilograms,8.4e-35*kilograms); |
| /// 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); |
| |
| } // namespace codata |
| |
| } // namespace constants |
| |
| } // namespace si |
| |
| } // namespace units |
| |
| } // namespace boost |
| |
| #endif // BOOST_UNITS_CODATA_NEUTRON_CONSTANTS_HPP |