Possibility of unique detection of primordial black hole gamma-ray bursts

We describe the properties of primordial black hole (PBH) burst emission, pointing out the aspects that are model-dependent and estimate the upper limit of the PBH density in the universe and in the Galaxy. We then suggest methods to detect the gamma, nu bursts from PBHs. Finally, we compare with the current data on gamma-ray bursts and point out that some of the events may have the expected characteristics for PBH bursts within the distance of a few parsecs. Specific tests of this assumption are proposed which may be carried out in the next few years.

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