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- // 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_TAU_CONSTANTS_HPP
- #define BOOST_UNITS_CODATA_TAU_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
- /// tau mass
- BOOST_UNITS_PHYSICAL_CONSTANT(m_tau,quantity<mass>,3.16777e-27*kilograms,5.2e-31*kilograms);
- /// tau-electron mass ratio
- BOOST_UNITS_PHYSICAL_CONSTANT(m_tau_over_m_e,quantity<dimensionless>,3477.48*dimensionless(),5.7e-1*dimensionless());
- /// tau-muon mass ratio
- BOOST_UNITS_PHYSICAL_CONSTANT(m_tau_over_m_mu,quantity<dimensionless>,16.8183*dimensionless(),2.7e-3*dimensionless());
- /// tau-proton mass ratio
- BOOST_UNITS_PHYSICAL_CONSTANT(m_tau_over_m_p,quantity<dimensionless>,1.89390*dimensionless(),3.1e-4*dimensionless());
- /// tau-neutron mass ratio
- BOOST_UNITS_PHYSICAL_CONSTANT(m_tau_over_m_n,quantity<dimensionless>,1.89129*dimensionless(),3.1e-4*dimensionless());
- /// tau molar mass
- BOOST_UNITS_PHYSICAL_CONSTANT(M_tau,quantity<mass_over_amount>,1.90768e-3*kilograms/mole,3.1e-7*kilograms/mole);
- /// tau Compton wavelength
- BOOST_UNITS_PHYSICAL_CONSTANT(lambda_C_tau,quantity<length>,0.69772e-15*meters,1.1e-19*meters);
- } // namespace codata
- } // namespace constants
- } // namespace si
- } // namespace units
- } // namespace boost
- #endif // BOOST_UNITS_CODATA_TAU_CONSTANTS_HPP
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