Speaker
Dr
Takatomi Yano
(Kobe Univ.)
Description
Hyper-Kamiokande (Hyper-K) is a next generation underground water Cherenkov detector.
The baseline design is based on Super-Kamiokande (Super-K) detector and contains enlarged fiducial volume of 0.56 Mt, which is 25 times of Super-K.
Hyper-K will play a considerable role in the next neutrino physics frontier.
Here, the physics potential of Hyper-K in the neutrino astrophysics is studied.
The photo-coverage of Hyper-K will be 20%, a half of Super-K, and the cosmic background will be somewhat increased because of the location.
These conditions must be considered.
First, we investigated the cosmic muon flux and spallation background at Hyper-K candidate sites, which is a dominant background at the low energy analysis.
Then, the effect on the analysis is evaluated, applying the recent background reduction technique.
As the result, the Hyper-K's possibility for solar neutrino, supernova neutrino and supernova relic neutrino are obtained.
We will discuss about these results.
The Hyper-K's possibility with gadolinium doping will be also discussed.
Primary author
Dr
Takatomi Yano
(Kobe Univ.)
Co-authors
Dr
Itaru Shimizu
(Tohoku Univ.)
Dr
Motoyasu Ikeda
(Tokyo Univ.)
Dr
Yasuo Takeuchi
(Kobe Univ.)
Dr
Yusuke Koshio
(Okayama Univ.)