Browsing by Author "Lee, FF"

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A semi-analytic calculation on the atmospheric tau neutrino flux in the GeV to TeV energy range
(2006-02-01)
Lee, FF
;
Lin, GL
;
物理研究所
;
Institute of Physics
We present a semi-analytic calculation on the atmospheric tau neutrino flux in the GeV to TeV energy range. The atmospheric v, flux is calculated for the entire zenith angle range. This flux is contributed by the oscillations of muon neutrinos coming from the two-body pi and K decays and the three-body mu(+/-) decays, and the intrinsic tau neutrino flux surviving the oscillations. The uncertainties in our calculations are discussed in detail. The implications of our result are also discussed. (c) 2005 Elsevier B.V. All rights reserved.
Energy spectrum of tau leptons induced by the high energy Earth-skimming neutrinos
(2003-09-15)
Tseng, JJ
;
Yeh, TW
;
Athar, H
;
Huang, MA
;
Lee, FF
We present a semianalytic calculation of the tau-lepton flux emerging from the Earth induced by incident high energy neutrinos interacting inside the Earth for 10(5)less than or equal toE(nu)/GeVless than or equal to10(10). We obtain results for the energy dependence of the tau-lepton flux coming from the Earth-skimming neutrinos, because of the neutrino-nucleon charged-current scattering as well as the resonant (nu) over bar (e)e(-) scattering. We illustrate our results for several anticipated high energy astrophysical neutrino sources such as the active galactic nuclei, the gamma-ray bursts, and the Greisen-Zatsepin-Kuzmin neutrino fluxes. The tau-lepton fluxes resulting from rock-skimming and ocean-skimming neutrinos are compared. Such comparisons can render useful information about the spectral indices of incident neutrino fluxes.
On possibility of the tau neutrino astronomy in GeV energies
(2005-06-01)
Athar, H
;
Lee, FF
;
Lin, GL
;
物理研究所
;
Institute of Physics
We discuss the possibility of searching the galactic-plane tau neutrinos in GeV energies.