Gamma Rays from Primordial Black Holes in Supersymmetric Scenarios

Using the MacGibbon-Webber model, the instantaneous photon (gamma-ray) emission spectra from PBHs in the Standard Model and mSUGRA benchmark models were investigated numerically. The point source and diffuse gamma-ray spectra from PBHs were also found numerically. It was found that the instantaneous photon flux from PBHs in mSUGRA benchmark models is generally less than approximately four times greater than in the Standard Model. The point source flux from a PBH in its final stages of emission will in mSUGRA benchmark models both quantitatively and qualitatively differ from that in the Standard Model. The dominant part of the diffuse gamma-ray flux should not be affected by any supersymmetric particles. However, for PBHs with initial mass approximately in the range [4x10^13 g, 1x10^14 g], the diffuse Standard Model flux at photon energies E_0 > ~1 GeV will generally be less than roughly 50% greater than for mSUGRA benchmark models. The results generally show good agreement with previous works, although model differences give some disagreement. It is concluded that it is unlikely that the effects found could be detected with the upcoming gamma-ray satellite GLAST, due for launch in 2006. This Master's Thesis also gives a review of PBH formation and emission, as well as some cosmological consequences associated with PBHs. The concept of supersymmetry in quantum mechanics and particle physics is also introduced.