Speaker
Prof.
George W.S. Hou
(National Taiwan University)
Description
The recent IceCube astrophysical PeV neutrino events motivate the
planning of the Neutrino Telescope Array (NTA) observatory, which
will have three site stations watching the air mass surrounded by
Mauna Loa, Mauna Kea, and Hualalai on Hawaii Big Island, plus a
site station at the center watching the lower night sky.
By separating nu_tau -> tau conversion from tau-shower generation,
the Earth-skimming nu_tau method allows for huge target mass and
detection volume simultaneously. With the mountains both as target
and shield, this method for PeV-EeV neutrino search is almost
background-free. With design based on experience from the operating
Ashra-1 detector, sensitivities reaching beyond 100 cubic-km water
equivalent can be achieved with Cherenkov-fluorescence stereoscopic
observation, with pointing accuracy of 0.2 deg or less. With the
goal of clear discovery and identification of astronomical nu_tau
sources achievable, a new International Collaboration is called for
to probe such cosmic proton accelerators.
additional information
Talk based on arXiv:1408.6244 [astro-ph.IM], a Letter of Intent for the NTA observatory.
Primary authors
Prof.
George W.S. Hou
(National Taiwan University)
Makoto Sasaki
(The University of Tokyo)
