darkhistory.electrons.positronium.weighted_photon_spec¶
- darkhistory.electrons.positronium.weighted_photon_spec(eng)¶
Returns the weighted photon spectrum from positronium annihilation.
This assumes 3/4 ortho- and 1/4 para-, normalized to a single annihilation.
- Parameters:
- engndarray
The energy abscissa.
- Returns:
- Spectrum
The resulting photon
Spectrumobject.