boost/units/systems/si/codata/neutron_constants.hpp
// 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/quantity.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