RPCR scenario for the multiwavelength modeling of the emission, extracted with the UV template, toward the Cygnus Loop. Radio data are obtained as explained in Sect. 3.3. The total contribution from Bremsstrahlung, IC, and π⁰ decay is shown by the solid black line. Our best model is obtained with preexisting CR populations from Phan et al. (2018) and a filling factor of f = 0.013. Spectral parameters for protons and electrons are s^1∕3p_maxc = 20 GeV and s^1∕3p_brc = 70 GeV.