// 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_ATOMIC_AND_NUCLEAR_CONSTANTS_HPP #define BOOST_UNITS_CODATA_ATOMIC_AND_NUCLEAR_CONSTANTS_HPP #include #include #include #include #include #include #include #include #include namespace boost { namespace units { namespace si { namespace constants { namespace codata { /// CODATA recommended values of the fundamental physical constants: NIST SP 961 // ATOMIC AND NUCLEAR /// fine structure constant BOOST_UNITS_PHYSICAL_CONSTANT(alpha,quantity,7.2973525376e-3*dimensionless(),5.0e-12*dimensionless()); /// Rydberg constant BOOST_UNITS_PHYSICAL_CONSTANT(R_infinity,quantity,10973731.568527/meter,7.3e-5/meter); /// Bohr radius BOOST_UNITS_PHYSICAL_CONSTANT(a_0,quantity,0.52917720859e-10*meters,3.6e-20*meters); /// Hartree energy BOOST_UNITS_PHYSICAL_CONSTANT(E_h,quantity,4.35974394e-18*joules,2.2e-25*joules); } // namespace codata } // namespace constants } // namespace si } // namespace units } // namespace boost #endif // BOOST_UNITS_CODATA_ATOMIC_AND_NUCLEAR_CONSTANTS_HPP