Diffuse Supernova Neutrino Background in a Bounce Frame

This paper computes a specific neutrino quantity in a cosmology whose collapse is regulated by a maximum density, the Aldred Limit evaluated on its neutron branch at 9.72e+54 grams per cubic centimetre. Every core-collapse supernova in the observable universe contributes to a diffuse background of neutrinos with energies of tens of megaelectronvolts. The background has not yet been detected, and its predicted flux sits below present upper limits by a factor of a few. The calculation gives the following headline values: predicted_flux_cm2_s = 6.0, experimental_upper_cm2_s = 2.7, ratio = 0.4, mean_energy_MeV = 15.0, flux_above_17MeV_cm2_s = 1.1, ratio_to_limit = 0.40740740740740744. Each value is obtained from stated assumptions by the deposited script and is compared with published observational values where such values exist. Where the computed frame effect is far below observational reach, that negative result is stated plainly rather than softened. This study is simulated and computed from stated assumptions; it is not a measurement.