The mysteries of the universe, matter,
and the stars revealed by Neutrino
Together with about 40 universities
and research institutes around the world,
we are working to elucidate the nature of neutrinos
and the mysteries of elementary particles and the universe.
- #Proton decay
- #Nobel Prize
- #Neutrino oscillation
- #Supernova relic neutrino
- #Solar neutrino
- #T2K experiment
- #Kamiokande chronology
- #Cherenkov light
- #How to observe
Protons are contained in the nucleus of an atom, and they are believed to be stable in the standard theory of particle physics. Proton decay is a phenomenon that the proton will break down spontaneously into other particles.
Proton decay | Super-Kamiokande Official homepage
Dr. Takaaki Kajita was awarded the Nobel Prize in Physics in 2015 through his research at Super-Kamiokande.
Nobel Prize | Super-Kamiokande Official homepage
Dr. Takaaki Kajita was awarded the Nobel Prize in Physics for this discovery. It does not mean that neutrinos actually oscillate, but rather that they “transform into different flavors as they oscillate.”
Neutrino oscillation | Super-Kamiokande Official homepage
Supernova relic neutrino
The neutrinos emitted from all supernovae from the begging of the universe have diffused the universe. Aiming for the world’s first detection, SK started the new observation in 2020.
Supernova relic neutrino | Super-Kamiokande Official homepage
Neutrinos coming from the sun. While light born at the sun’s center takes about 100,000 years to reach the surface of the sun, neutrinos reach the earth in about eight minutes.
Solar neutrino | Super-Kamiokande Official homepage
The world’s most intense neutrino beam, produced at the Japan Proton Accelerator Research Complex (J-PARC) in Tokai-mura, Ibaraki Prefecture, is detected by Super-Kamiokande, 295 km away.
T2K experiment | Super-Kamiokande Official homepage
The Kamiokande series has produced very important results in neutrino research.
Kamiokande chronology | Super-Kamiokande Official homepage
Next-generation detector currently under construction. It is planned to start observation in 2027.
Hyper-Kamiokande | Hyper-Kamiokande Official homepage
A light emitted when charged particles struck by neutrinos travel faster than light in water.
Cherenkov light | Super-Kamiokande Official homepage
How to observe
The Cherenkov light emitted by charged particles struck by neutrinos in rare collisions (interactions) with matter is observed by photomultiplier tubes installed on the tank walls.
How to observe | Super-Kamiokande Official homepage
T2K experiment enters a new phase with significantly improved sensitivity for its world leading neutrino oscillation research―Started data taking with upgraded accelerator neutrino beam and new detectors―
Christophe Bronner of the Super-Kamiokande Experiment Group Receives Young Scientist Award of the Physical Society of Japan