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The Propagations of GZK (Tau) Neutrinos in Earth

The Propagations of GZK (Tau) Neutrinos in Earth. Standard and Non-Standard Physics. Downward ~ 10 km. ~ few km. Rock Salt. Horizontal ~ 100 km. Earth skimming ~ 500 km. Various neutrino incident directions  Different distances of propagations

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The Propagations of GZK (Tau) Neutrinos in Earth

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  1. The Propagations of GZK (Tau) Neutrinos in Earth Standard and Non-Standard Physics

  2. Downward ~ 10 km ~ few km Rock Salt Horizontal ~ 100 km Earth skimming ~ 500 km Various neutrino incident directions Different distances of propagations inside the Earth before producing showers

  3.  and  propagations inside the Earth     NC Energy Loss CC Decay CC NC New physics New physics Propagation Distance With =2.65 g/cm3

  4. Up to L=500 km, GZK neutrino spectrum does not change much GZK neutrino flux taken from R. Engel, D. Seckel and T. Stanev, 01

  5. Non-Standard Physics TeV scale gravity, KKexcitations…

  6. 4+n dimensions of space-time J. L. Feng and A. D. Shapere 02 J. Alvarez-Muniz et al. 02 L. A. Anchordoqui et al. 03 +N  micro black holes  hadrons  leptons ~10 particles Take n=6, MD=2 TeV for simulations (done by C. H. Iong)

  7. SalSA threshold 30 PeV with L=250 m 5 10 30 SalSA sensitivity to GZK  flux begins here P. W. Gorham et al. astro-ph/0412128

  8. Distinguishable from standard-model physics by angular distributions. • For downward directions, flat spectrum measured for E beyond 109 GeV. For the horizontal direction, the measured spectrum is more or less the same as the original.

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