ar X iv : h ep - p h / 01 05 34 8 v 1 3 1 M ay 2 00 1 Ultrahigh energy cosmic rays as a Grand Unification signal
نویسنده
چکیده
We analyze the spectrum of the ultrahigh energy (above ≈ 10 9 GeV) cosmic rays. With a maximum likelihood analysis we show that the observed spectrum is consistent with the decay of extragalactic GUT scale particles. The predicted mass for these superheavy particles is m X = 10 b GeV, where b = 14.6
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تاریخ انتشار 2008