exotic atoms and nuclei

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The Chunichi Cultural Prize

(May 3, 2009) Chunichi Newspaper Co. announced today that I will recieve the 62nd Chunichi Cultural Prize, for the study of antiprotonic helium atoms. Past recipients of this award include Koabyashi & Maskawa (2008 Nobel Prize in physics) and Noyori (2001 Nobel Prize in chemistry).

2008 Nishina Memorial Prize

(Novemver 13, 2008) Nishina Memorial Foundation announced today that I will receive the 2008 Nishina Memorial Prize, the most prestigious physics award in Japan, for the study of antiprotonic helium atoms. Read more about the news here.
The news also appeard in the headline story of TRIUMF (Canada), where I did most of my graduate studies, and in the home page of Nuclear Physics A, for which I work as a supervisory editor. Nuclear Instruments and Methods in Physics Research Section B and CERN Courier have also featured the news.
My friend and collaborator, Lodi-Rizzini, contributed an article to the Itaian Physical Society Journal "Il Nuovo Saggiatore".


2010.07.06 Invited talk at INPC2010 conference (Vancouver, Canada).

2010.06.28 Invited talk at Chiral10 conference (Valencia, Spain).

2010.05.31 Invited talk at MENU2010 conference (Williamsburg, VA).

2010.04.29 GSI Scientific Council.

2010.04.15 Attending the Helmholtz Institute in Mainz inauguration.

2010.04.01 Physics Department Chair (for the next 2 years)

2010.02.04 Attending the "Nuclear Physics A" supervisory editors' meeting in Amsterdam

2010.01.19 Status report at CERN SPSC

2010.01.15 Status report at J-PARC PAC

2010.01.08 Invited talk at the KEK Theory Workshop.

2009.12.13 ASACUSA collaboration meeting at CERN.

2009.10.16 Invited talk at The Third Joint JPS/DNP Meeting (Hawaii).

2009.10.01 Invited colloquium at KEK

2009.09.21 Invited talk at The 5-th International Conference on Quarks and Nuclear Physics (Beijing)

2009.05.12 Talk at "New Opportunities in the Physics Landscape at CERN"

2009.05.11 Attending the GSI advisory board.

2009.04.26 Attending the review of the "Helmholtz institute Mainz"

2009.04.17 Physics department colloquium (on Antiprotonic Helium Atoms)

2009.04.13 Confirmation of kaons in the K1.8BR beam at the Hadron Facility, J-PARC .

2009.03.28 Invited talk at the 64th annual meeting of the Physical Society of Japan (on Antiprotonic Helium Atoms)

2009.03.20 Italian high-school students sent me a set of questions, and here are my answers.

2009.01.27 ASACUSA status report presentation at CERN SPSC(program committee)

2009.01.23 ASACUSA status report submitted to CERN; presentation at CERN SPSC on Jan 27.

2008.12.20 Nishina Prize "thank you" party photo album

2008.12.15 Invited talk at SENDAI08

2008.12.05 The award ceremony of 2008 Nishina Memorial Prize.

2008.12.04 "Hadron properties in the nuclear medium" (arXiv:0812.1702) has been submitted to Rev. Mod. Phys. (at last!)

2008.06.04 Grant-in-Aid for Specially Promoted Research approved for the next 5 years.

2008.05.01 Takatoshi Suzuki joins Hayano Group as a research associate.

2008.02.22 Japan-Austria bilateral collaboration project (J-PARC E17) has been approved.

2008.01.23 Presented the results of E570 at the KEK-PS external review.

2008.01.15 ASACUSA presentation at CERN's program committee.

2007.11.08 Invited talk on "Past, Present and Future of Trapped Antiprotons" at the FAIR start symposium at GSI.

2007.09.27 Dr. Masaki Hori won the EURYI award

Exotic atoms and nuclei

Hayano Group focuses on the precision spectroscopy of exotic atoms and nuclei. In particular, we study antiprotonic helium atoms, antihydrogen atoms, pionic atoms, kaonic atoms in detail, in order to reveal the origin of the proton mass (why proton is so much heavier than up and down quarks), to test the (possible lack of) symmetry between matter and antimatter (CPT), and to measure (anti)proton-electron mass ratio, on of the important fundamental constants.

These experiments can only be done at accelerator facilities:
  • Antiprotonic helium and antihydrogen experiments are being done at CERN in Switzerland, in a collaboration known as ASACUSA.
  • The (so-called deeply-bound) pionic-atom spectroscopy was initiated at GSI in Germany. Higher-precision work is now being prepared at the newly-completed RIBF, in Japan.
  • Kaonic-atom experiments will be done at J-PARC in Japan, and at DAΦNE e+e- collider in Italy.

The specially-promoted research project will focus on the two exotic-helium atoms, i.e., antiprotonic helium and kaonic helium.