exotic atoms and nuclei

Ongoing Projects

  1. ASACUSA: Atomic Spectroscopy and Collisions using Slow Antiprotons - This collaboration, working at CERN's antiproton decelerator, was formed in 1996, and I have been the spokesperson of ASACUSA since its birth. ASACUSA is famous, in particular, for its success in the high-precision spectroscopy of antiprotonic helium atoms more…
  2. ALPHA aims at the laser spectroscopy of antihydrogen. Hayano serves as a collaboration board member since the collaboration was formed in 2005. more…
  3. Precision spectroscopy of kaonic helium 4 (KEK E570, spokesperson) - We have recently solved the long-standing "Kaonic helium puzzle". more…
  4. Precision spectroscopy of kaonic helium 3 (J-PARC E17, spokesperson) - This will be the first experiment to be performed at J-PARC. more…
  5. Kaonic hydrogen spectroscopy (DAΦNE SIDDHARTA) - The two collaborations, E570/E17 (kaonic helium) and SIDDHARTA (kaonic hydrogen) are working together to better understand the kaon-nucleon & kaon-nucleus interactions at low energy. more…
  6. Deeply-bound pionic atom spectroscopy at RIBF - This is to extend the success of our experiment at GSI, using the newly-completed RIBF accelerator at RIKEN. The goal is to quantitatively understand the "origin of the proton mass". more…

Recently completed

  1. Antihydrogen formation: ATHENA - We first succeeded in producing cold antihydrogen atoms
  2. Deeply-bound pionic atom spectroscopy at GSI

Others

  1. PHENIX - I was the Japanese-side spokesperson of the Japan-US collaboration program when the PHENIX collaboration at RHIC was formed.