2#include "CLHEP/Units/PhysicalConstants.h"
10using CLHEP::c_squared;
12using CLHEP::hbar_Planck;
14using CLHEP::hbarc_squared;
15using CLHEP::electron_charge;
16using CLHEP::e_squared;
17using CLHEP::electron_mass_c2;
18using CLHEP::proton_mass_c2;
19using CLHEP::neutron_mass_c2;
24using CLHEP::elm_coupling;
25using CLHEP::fine_structure_const;
26using CLHEP::classic_electr_radius;
27using CLHEP::electron_Compton_length;
28using CLHEP::Bohr_radius;
29using CLHEP::alpha_rcl2;
30using CLHEP::twopi_mc2_rcl2;
31using CLHEP::k_Boltzmann;
32using CLHEP::STP_Temperature;
33using CLHEP::STP_Pressure;
34using CLHEP::kGasThreshold;
35using CLHEP::universe_mean_density;