ceph/src/boost/libs/units/include/boost/units/systems/si/codata/neutron_constants.hpp

   1 // Boost.Units - A C++ library for zero-overhead dimensional analysis and
   2 // unit/quantity manipulation and conversion
   3 //
   4 // Copyright (C) 2003-2008 Matthias Christian Schabel
   5 // Copyright (C) 2008 Steven Watanabe
   6 //
   7 // Distributed under the Boost Software License, Version 1.0. (See
   8 // accompanying file LICENSE_1_0.txt or copy at
   9 // http://www.boost.org/LICENSE_1_0.txt)
  10
  11 #ifndef BOOST_UNITS_CODATA_NEUTRON_CONSTANTS_HPP
  12 #define BOOST_UNITS_CODATA_NEUTRON_CONSTANTS_HPP
  13
  14 #include <boost/units/quantity.hpp>
  15 #include <boost/units/static_constant.hpp>
  16
  17 #include <boost/units/systems/detail/constants.hpp>
  18 #include <boost/units/systems/si/amount.hpp>
  19 #include <boost/units/systems/si/area.hpp>
  20 #include <boost/units/systems/si/electric_charge.hpp>
  21 #include <boost/units/systems/si/energy.hpp>
  22 #include <boost/units/systems/si/frequency.hpp>
  23 #include <boost/units/systems/si/length.hpp>
  24 #include <boost/units/systems/si/mass.hpp>
  25 #include <boost/units/systems/si/magnetic_flux_density.hpp>
  26 #include <boost/units/systems/si/time.hpp>
  27 #include <boost/units/systems/si/wavenumber.hpp>
  28
  29 #include <boost/units/systems/si/codata/typedefs.hpp>
  30
  31 /// \file
  32 /// CODATA recommended values of fundamental atomic and nuclear constants
  33 /// CODATA 2006 values as of 2007/03/30
  34
  35 namespace boost {
  36
  37 namespace units {
  38
  39 namespace si {
  40
  41 namespace constants {
  42
  43 namespace codata {
  44
  45 /// CODATA recommended values of the fundamental physical constants: NIST SP 961
  46
  47 /// neutron mass
  48 BOOST_UNITS_PHYSICAL_CONSTANT(m_n,quantity<mass>,1.674927211e-27*kilograms,8.4e-35*kilograms);
  49 /// neutron-electron mass ratio
  50 BOOST_UNITS_PHYSICAL_CONSTANT(m_n_over_m_e,quantity<dimensionless>,1838.6836605*dimensionless(),1.1e-6*dimensionless());
  51 /// neutron-muon mass ratio
  52 BOOST_UNITS_PHYSICAL_CONSTANT(m_n_over_m_mu,quantity<dimensionless>,8.89248409*dimensionless(),2.3e-7*dimensionless());
  53 /// neutron-tau mass ratio
  54 BOOST_UNITS_PHYSICAL_CONSTANT(m_n_over_m_tau,quantity<dimensionless>,0.528740*dimensionless(),8.6e-5*dimensionless());
  55 /// neutron-proton mass ratio
  56 BOOST_UNITS_PHYSICAL_CONSTANT(m_n_over_m_p,quantity<dimensionless>,1.00137841918*dimensionless(),4.6e-10*dimensionless());
  57 /// neutron molar mass
  58 BOOST_UNITS_PHYSICAL_CONSTANT(M_n,quantity<mass_over_amount>,1.00866491597e-3*kilograms/mole,4.3e-13*kilograms/mole);
  59 /// neutron Compton wavelength
  60 BOOST_UNITS_PHYSICAL_CONSTANT(lambda_C_n,quantity<length>,1.3195908951e-15*meters,2.0e-24*meters);
  61 /// neutron magnetic moment
  62 BOOST_UNITS_PHYSICAL_CONSTANT(mu_n,quantity<energy_over_magnetic_flux_density>,-0.96623641e-26*joules/tesla,2.3e-33*joules/tesla);
  63 /// neutron g-factor
  64 BOOST_UNITS_PHYSICAL_CONSTANT(g_n,quantity<dimensionless>,-3.82608545*dimensionless(),9.0e-7*dimensionless());
  65 /// neutron-electron magnetic moment ratio
  66 BOOST_UNITS_PHYSICAL_CONSTANT(mu_n_over_mu_e,quantity<dimensionless>,1.04066882e-3*dimensionless(),2.5e-10*dimensionless());
  67 /// neutron-proton magnetic moment ratio
  68 BOOST_UNITS_PHYSICAL_CONSTANT(mu_n_over_mu_p,quantity<dimensionless>,-0.68497934*dimensionless(),1.6e-7*dimensionless());
  69 /// neutron-shielded proton magnetic moment ratio
  70 BOOST_UNITS_PHYSICAL_CONSTANT(mu_n_over_mu_p_prime,quantity<dimensionless>,-0.68499694*dimensionless(),1.6e-7*dimensionless());
  71 /// neutron gyromagnetic ratio
  72 BOOST_UNITS_PHYSICAL_CONSTANT(gamma_n,quantity<frequency_over_magnetic_flux_density>,1.83247185e8/second/tesla,4.3e1/second/tesla);
  73
  74 } // namespace codata
  75
  76 } // namespace constants
  77
  78 } // namespace si
  79
  80 } // namespace units
  81
  82 } // namespace boost
  83
  84 #endif // BOOST_UNITS_CODATA_NEUTRON_CONSTANTS_HPP