Peering into the Universe and its Elementary Particles from Underground

The Hyper-Kamiokande detector is planned to consist of an order of magnitude larger tank than predecessor experiment Super-Kamiokande's and ultra high sensitivity photosensors. The Hyper-Kamiokande detector is both a “microscope,” used to observe elementary particles, and also a “telescope” for observing the Sun and supernovas, using neutrinos.

It is the aim of Hyper-Kamiokande to elucidate the Grand Unified Theory and the history of the evolution of the Universe through an investigation of proton decay and CP violation (the difference between neutrinos and antineutrinos), together with the observation of neutrinos from supernova explosions.

Hyper-Kamiokande is part of an international research project aiming to start experimentation in 2026.

Latest News

8, Aug. 2017 The Hyper-K CG movie is uploaded.
7, Aug. 2017 The Hyper-K is in the MEXT Large Projects Roadmap
3, Aug. 2017 Hyper-Kamiokande Advisory Sub-Committee for Cavern&Tank was held
20, Jul. 2017 Hyper-K included in the draft MEXT Roadmap for Large Projects
3, Apr. 2017 [Topics] Development of software towards Hyper-Kamiokande
27, Mar. 2017 [Topics] HK group is developing a dedicated electronics module
23, Feb. 2017 [Topics] The workshop on Supernova at Hyper-Kamiokande was held
8, Dec. 2016 The 3rd International Meeting for Large Neutrino Infrastructures was held at KEK.
13, Oct. 2016 Hyper-Kamiokande Design Report Released
16, Sep. 2016 Call for Assistant Professors at Kamioka Observatory
25, May 2015 Hyper-Kamiokande paper is published in Progress of Theoretical and Experimental Physics.
18, May 2015 [Topics] A strength test of new photosensors has been commenced.
19, Apr. 2015 The third Hyper-Kamiokande EU meeting will be held on 27, 28 April at CERN.
25, Feb. 2015 The article "Physics Potential of a Long Baseline Neutrino Oscillation Experiment Using J-PARC Neutrino Beam and Hyper-Kamiokande" is submitted.
23, Feb. 2015 "Organization" page has been updated.
20, Feb. 2015 Prof. T. Kobayashi, Prof. T. Nakaya and Prof. M. Shiozawa have been awarded the Yoji Totsuka Memorial Prize!
9, Feb. 2015 [Topics] The Inaugural Symposium of the Hyper-Kamiokande Proto-Collaboration and signing ceremony were held.
9, Feb. 2015 [Topics] The 6th Open Meeting for the Hyper-Kamiokande Project was held.
19, Jan. 2015 Inaugural Symposium of the Hyper-Kamiokande Proto-Collaboration will be held on 31st January, 2015.
19, Jan. 2015 English website of Hyper-Kamiokande is opened!
7, Jan. 2015 The 6th Open Meeting for the Hyper-Kamiokande Project will be held on 28th-31st January, 2015.
24, Nov. 2014 Prof. Takashi Kobayashi and Prof. Tsuyoshi Nakaya have been awarded the Nishina Memorial Prize!
28, Feb. 2014 The Hyper-Kamiokande project has been selected as one of "the important large-scale projects" for Master Plan 2014 of the Science Council of Japan.