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_ATOMIC_AND_NUCLEAR_CONSTANTS_HPP 12 #define BOOST_UNITS_CODATA_ATOMIC_AND_NUCLEAR_CONSTANTS_HPP 13 14 #include <boost/units/systems/si/codata/alpha_constants.hpp> 15 #include <boost/units/systems/si/codata/deuteron_constants.hpp> 16 #include <boost/units/systems/si/codata/electron_constants.hpp> 17 #include <boost/units/systems/si/codata/helion_constants.hpp> 18 #include <boost/units/systems/si/codata/muon_constants.hpp> 19 #include <boost/units/systems/si/codata/neutron_constants.hpp> 20 #include <boost/units/systems/si/codata/proton_constants.hpp> 21 #include <boost/units/systems/si/codata/tau_constants.hpp> 22 #include <boost/units/systems/si/codata/triton_constants.hpp> 23 24 namespace boost { 25 26 namespace units { 27 28 namespace si { 29 30 namespace constants { 31 32 namespace codata { 33 34 /// CODATA recommended values of the fundamental physical constants: NIST SP 961 35 36 // ATOMIC AND NUCLEAR 37 /// fine structure constant 38 BOOST_UNITS_PHYSICAL_CONSTANT(alpha,quantity<dimensionless>,7.2973525376e-3*dimensionless(),5.0e-12*dimensionless()); 39 /// Rydberg constant 40 BOOST_UNITS_PHYSICAL_CONSTANT(R_infinity,quantity<wavenumber>,10973731.568527/meter,7.3e-5/meter); 41 /// Bohr radius 42 BOOST_UNITS_PHYSICAL_CONSTANT(a_0,quantity<length>,0.52917720859e-10*meters,3.6e-20*meters); 43 /// Hartree energy 44 BOOST_UNITS_PHYSICAL_CONSTANT(E_h,quantity<energy>,4.35974394e-18*joules,2.2e-25*joules); 45 46 } // namespace codata 47 48 } // namespace constants 49 50 } // namespace si 51 52 } // namespace units 53 54 } // namespace boost 55 56 #endif // BOOST_UNITS_CODATA_ATOMIC_AND_NUCLEAR_CONSTANTS_HPP 57