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constexpr double | mass_unit |
| mass_nuclear = mass_unit * mass_geometric Heuristically a solar mass in MeV/c^2 More...
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constexpr double | length_unit = cgs::length_unit / (1.0e-13) |
| length_nuclear = length_unit * length_geometric Heuristically GM_sun/c^2 in fm
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constexpr double | time_unit |
| time_nuclear = time_unit * time_geometric Heuristically GM_sun/c^3 in fm/c More...
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constexpr double | pressure_unit = mass_unit / (length_unit * square(time_unit)) |
| pressure_nuclear = pressure_geometric * pressure_geometric Heuristically the rest-mass energy density of ~2200 the density of atomic nucli expressed in MeV/fm^3
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constexpr double | rest_mass_density_unit = mass_unit / cube(length_unit) |
| rest_mass_density_nuclear = rest_mass_density_geometric * rest_mass_density_geometric Heuristically ~2200 the density of atomic nucli expressed in MeV/c^2/fm^3
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constexpr double | neutron_mass |
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constexpr double | atomic_mass_unit |
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constexpr double | proton_mass |
| The proton mass in MeV, uncertainty at 5.8eV. More...
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constexpr double | saturation_number_density = 0.16 |
| The saturation number density of baryons in nuclear matter, in units of 1/fm^3. This is a standard value, consistent with e.g. https://journals.aps.org/prc/abstract/10.1103/PhysRevC.102.044321.
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The defining quantities of the nuclear fm-MeV/c^2-fm/c unit system.
Constants are defined in terms of cgs units where possible, which are, in many cases known exactly due to their relation to SI.