Cascaded gamma-ray spectra (colored lines) and all-flavor neutrino spectra (black lines) for different values of R and magnetic field strength in the decay scenario. The magnetic field strengths used are computed in terms of ﹩{B}_{{\rm{\max }}}﹩ as defined in Equation (13). The solid lines correspond to cascades computed with the photomeson contribution, and the dashed lines correspond to cascades neglecting the photomeson contribution. Attenuation due to CMB and EBL (R. C. Gilmore et al. 2012) is considered. All panels are made using s_CR = 3.2, ﹩{\varepsilon }_{A}^{{\rm{\min }}}﹩ =5 PeV and ﹩{\varepsilon }_{A}^{{\rm{\max }}}﹩=15 PeV for the injected helium nucleus spectrum.