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- W3006188305 abstract "Abstract We propose a new observational test of top-down source models for the ultra-high-energy cosmic-rays (UHECRs), based on the simultaneous observation of two or more photons from the same Galactic hadron jet. We derive a general formula allowing one to calculate the probability of detecting such ‘multiple events’, for any particular top-down model, once the physical parameters of the associated hadron jets are known. We then apply our results to a generic top-down model involving the decay of a supermassive particle, and show that under reasonable assumptions the next-generation UHECR detectors would be able to detect multiple events on a timescale of a few years, depending on the mass of the top-down progenitor. Either the observation or the non-observation of such events will provide constraints on the UHECR top-down models and/or the physics of hadronization at ultra-high energy." @default.
- W3006188305 created "2020-02-24" @default.
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- W3006188305 date "2003-07-01" @default.
- W3006188305 modified "2023-09-25" @default.
- W3006188305 title "Multiple UHECR Events from Galactic Hadron Jets" @default.
- W3006188305 hasPublicationYear "2003" @default.
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