Propagation of ultrahigh-energy neutrinos through the earth (CROSBI ID 87263)
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Podaci o odgovornosti
Horvat, Raul
engleski
Propagation of ultrahigh-energy neutrinos through the earth
The dispersion relation in matter of ultrahigh-energy neutrinos above the pole of the W resonance (E_nu>10^7GeV), is studied. We perform our calculation using the real-time formulation of Thermal Field Theory in which the massless limit for the W boson is taken. The range of active-to-sterile neutrino oscillation parameters for which there is significant mixing enhancement during propagation through the interior of the Earth, and therefore significant attenuation of neutrino beams in the Earth at high energies, is estimated. Finally, this range is considered in view of the cosmological and astrophysical constraints.
neutrinos; ultrahigh-energy; Thermal Field Theory
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Podaci o izdanju
480 (1-2)
2000.
135-139
objavljeno
0370-2693
1873-2445
10.1016/S0370-2693(00)00376-2