Ultrahigh Energy Neutrinos at the Pierre Auger Observatory

Table 4

Number of expected events for several theoretical models of UHE neutrino production, given the exposure of the surface detector array of the Pierre Auger Observatory to earth-skimming and downward-going neutrinos (Table 2).

Model and reference	Earth-skimming	Downward-going
Cosmogenic (Fermi) [43]	~0.6	~0.1
AGN [44]	~5.1	~0.8
Exotic (SH relics) [45]	~3.0	~1.0