alpha_constants.hpp 2.2 KB

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  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. #ifndef BOOST_UNITS_CODATA_ALPHA_CONSTANTS_HPP
  11. #define BOOST_UNITS_CODATA_ALPHA_CONSTANTS_HPP
  12. #include <boost/units/quantity.hpp>
  13. #include <boost/units/static_constant.hpp>
  14. #include <boost/units/systems/detail/constants.hpp>
  15. #include <boost/units/systems/si/amount.hpp>
  16. #include <boost/units/systems/si/area.hpp>
  17. #include <boost/units/systems/si/electric_charge.hpp>
  18. #include <boost/units/systems/si/energy.hpp>
  19. #include <boost/units/systems/si/frequency.hpp>
  20. #include <boost/units/systems/si/length.hpp>
  21. #include <boost/units/systems/si/mass.hpp>
  22. #include <boost/units/systems/si/magnetic_flux_density.hpp>
  23. #include <boost/units/systems/si/time.hpp>
  24. #include <boost/units/systems/si/wavenumber.hpp>
  25. #include <boost/units/systems/si/codata/typedefs.hpp>
  26. /// \file
  27. /// CODATA recommended values of fundamental atomic and nuclear constants
  28. /// CODATA 2006 values as of 2007/03/30
  29. namespace boost {
  30. namespace units {
  31. namespace si {
  32. namespace constants {
  33. namespace codata {
  34. /// CODATA recommended values of the fundamental physical constants: NIST SP 961
  35. /// alpha particle mass
  36. BOOST_UNITS_PHYSICAL_CONSTANT(m_alpha,quantity<mass>,6.64465620e-27*kilograms,3.3e-34*kilograms);
  37. /// alpha-electron mass ratio
  38. BOOST_UNITS_PHYSICAL_CONSTANT(m_alpha_over_m_e,quantity<dimensionless>,7294.2995365*dimensionless(),3.1e-6*dimensionless());
  39. /// alpha-proton mass ratio
  40. BOOST_UNITS_PHYSICAL_CONSTANT(m_alpha_over_m_p,quantity<dimensionless>,3.97259968951*dimensionless(),4.1e-10*dimensionless());
  41. /// alpha molar mass
  42. BOOST_UNITS_PHYSICAL_CONSTANT(M_alpha,quantity<mass_over_amount>,4.001506179127e-3*kilograms/mole,6.2e-14*kilograms/mole);
  43. } // namespace codata
  44. } // namespace constants
  45. } // namespace si
  46. } // namespace units
  47. } // namespace boost
  48. #endif // BOOST_UNITS_CODATA_ALPHA_CONSTANTS_HPP