Japan-US Collaboration Nobu Toge (KEK) 12 December 2014 Physics
and Friendships, A Symposium in honor of David Leith 1
Slide 2
With thanks to David and to all, I would like to - talk to you
about the roles played by, and contributions made by David in the
Japan-US cooperation in the field of high energy physics. Note: You
can find the 30+ years of Japan-US cooperation in a bigger scope at
http://www.bnl.gov/usjphep/ (30 th anniversary symposium, October
20-21, 2010, Hawaii)http://www.bnl.gov/usjphep/ 2
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Japanese-side Background 1950s ~ mid-60s: Limited Japanese
participation in European or American programs for HEP on a
personal basis. Late 60s ~ Early 70s: Some university groups began
organizing participation in international collabs, for instance,
Koshibas group at DESY. 70s: The period of construction and
operation of KEK-PS was interlaced with international meetings,
such as the JapanUS Accelerator Science Seminar in 1973, where a
possibility emerged of formulating a framework for a comprehensive
collaboration program in HEP between Japan and the US, in addition
to early collabs such as Yale- INS/U.Tokyo at BNL and at SLAC.
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Formation of the Japan-US collaborative program 1978: The 19 th
International Conference on High Energy Physics ICHEP, which was
held in Tokyo, gave an important opportunity for the scientists
involved to exchange information on concrete possibilities of
collaboration in relation to experiments and R&D. Around this
time, very high level discussions were ongoing between the
governments of Japan and the US with regard to the energy research
issues. Under these circumstances and thanks to dedicated, tireless
efforts by government officers of both countries 1979: in November
the Joint JapanUS Collaboration in High Energy Physics was
established as an agreement between the Japanese Ministry of
Education and the US Department of Energy. 4
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 17 15 16 18 19 20 21 1 John
Metzler (DOE) 2 Satoshi Ozaki (BNL) 3 Jack Blasy (DOE) 4 Jack
Sandweiss (Yale) 5 Ronnie Rau (BNL) 6 William Wallenmeyer (DOE) 7
Stan Stamp (DOE) 8 Joe Ballam (SLAC) 14Pief Panofsky (SLAC)
15Toshio Kitagaki (Tohoku U.) 16 Tadao Fujii (U. of Tokyo) 17
Tetsuji Nishikawa (KEK) 18 Bernie Hildebrand (DOE) 19 Gakuji
Shigeto (MOE) 20 Ken Kikuchi (KEK) 21Katsuyoshi Haga (KEK) 9James
Leiss (DOE) 10Robert Birge (LBNL) 11 Gyo Takeda (Tohoku U.) 12 Leon
Lederman (FNAL) 13 Kohei Shinozawa (MOE) Group picture taken at the
Implementation Signing Ceremony for the Joint Japan-US
Collaboration in High Energy Physics, held at SLAC on November 11,
1979. Official version. 5
Slide 6
Group picture taken at the Implementation Signing Ceremony for
the Joint Japan-US Collaboration in High Energy Physics, held at
SLAC on November 11, 1979. Quasi-official version. 6
Slide 7
In the Japan-US Symposium in 2010 David explained - 1975~6
Sharon Traweek and Henry Abarbanel encouraged David to be in
contact with several Japanese groups who might be interested in
collaborating on strong interaction spectroscopy studies, which led
to a meeting with Ryo Kajikawa, of Nagoya University and the start
of a long personal friendship, and of a productive scientific
collaboration. Nagoya applied to JSPS for support, and Shiro Suzuki
visited SLAC. Thus began the Japan-US basis for the LASS program.
Prof.Nishikawa pushed the formation of the Japan/US collaboration
in HEP, and supported the Nagoya groups role on the LASS experiment
as part of that activity 7
Japan-US at SLAC in Early Days SLAC hosted two of its
experimental HEP programs in the context of Japan-US A series of
bubble chamber experiments, the LASS activity. SLAC placed a system
for hiring of young Japanese scientists Joe Ballam decided to hire
a series of young Japanese scientists, into short term
appointments, using the lab resources offset by the Japan- US
investment at SLAC. This program had over 30 Japanese visitors
working on the experiments through the period 1979 to 1999, with 18
post docs and graduate students working long term at SLAC, in these
visiting appointments. SLAC operated PEP, a 29GeV e+e- collider One
of the PEP experiments, TPC, was supported in part by the Japan- US
program, too (hosted by LBNL). 10
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LASS experimental area : From Shiro Suzuki. Early 1980s.
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One of the major results from LASS Naoki Awaji Ph.D Thesis,
Nagoya (1986) K - + elastic scattering from K - p K - + n at
11GeV/c Nucl. Phys. B 296 (1988) 493 13
Slide 14
According to Ryo Kajikawa, Japan-US program was indispensable,
when Ryo was looking after students in late 70s early 80s with
reduced machine time of KEK PS, while construction effort for
TRISTAN was ramping up. Ryo worried first if he would send many
students to US on a long- term basis. It turned out to be a great
success, thanks to a combination of offers from SLAC, help from
David and his Group B, an increased CPU power at Nagoya and hard
work by Shiro Suzuki and the students. The Japan-US physics program
of LASS at SLAC was later taken over by Yuta, Abe and their group
from Tohoku Univ. who worked on SLD and kept it strong (stronger).
14 S.Suzuki (behind) and T.Shimomura (front) at LASS (From left)
H.Yuta, M.Breidenbach, C.Baltay, H.Lynch, R.Kajikawa
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Japan-US for SLD at SLAC Prof. Haruo Yuta (then at Tohoku) says
David personally visited us in Sendai in 1986. David was to explore
the possibility of Japanese participation in the SLD, bringing us
an opportunity and his enthusiasm on Japan-US program. Yuta, in
return, brought his Tohoku group to join the SLAC program with
Kajikawas Nagoya group, working now on the SLD experiment while
still participating in LASS data analysis. The Ballam program, (of
lab temporary staff positions), continued supporting senior
resident scientists, and a new set of temporary SLAC scientist
appointments. 15 H.Yuta
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Group picture taken at the 7 th Japan-US Committee on High
Energy Physics, held at SLAC in 1986. 16
Slide 17
Japanese groups helped design and build the CRID particle
identification system, and the CCD vertex detector of the SLD
detector, run the experiment through its data taking, and
participate in the data analysis. 17
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18 Group photo: SLD collaboration
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19 Emperor Akihito and Empress Michiko visit SLAC in 1994.
Slide 20
People in the Japan-US Program Nagoya University and Tohoku
University altogether sent 1 graduate students from Japan to work
at SLAC in the Japan-US program represented by David, who finished
their PhD studies and graduated. -Of this group 9 are now working
in research at Japanese universities or laboratories. -15 young
Japanese held temporary positions at SLAC, and of these 12 became
faculty or staff in Japanese universities or laboratories. -20 of
the Japanese who worked on this program are active in Japanese HEP.
The Japan-US program at SLAC was also augmented to incorporate
accelerator R&D, with SLAC being represented by G. Loew and
J.M. Paterson. 1981 high-power klystrons 1986: linear Colliders
Later in high-luminosity e+e- collider rings. 20
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21 Japanese Scientists for Japan/US Programs at SLAC with David
Name Institution (then) Role (then)Experiment Period at
SLACInstitution (now) Role (now) Currently active in Japan
1AbeKenjiNagoya UGSSLD1996 - 2001 AbeKoyaTohoku UAssoc. Prof.SLD
Retired AbeToshinoriNagoya Upost docSLD1996 - 2004JASRIStaffv
AkagiTakashiTohoku Upost docSLD Hyogo ion Beam Medical Center
Staffv AwajiNaokiNagoya UGSLASS1981 - 1987Fujitsu limitedStaff at
Fujitsu FujiiKeisukeNagoya UGSLASS1980 - 1985KEKAssoc. Prof.v
FujimotoJunpeiNagoya Upost docSLDshort stayKEKStaffv
HasegawaAkioTohoku Usenior staffSLD Retired HasegawaYojiTohoku
UGSSLD~1995Shinshu UStaffv 10HasukoKazumiTohoku UGSSLD~1999
HayashiiHisakiNagoya UGSLASS1984 - 1988Nara Womens U.Assoc. Prof.v
IwasakiMasakoKEK/Oregonpost docSLD1996 - 2002KEKAssoc. Prof.v
IwasakiYoshihitoTohoku UGSSLD~1995KEKStaffv IwataSeigiNagoya
Usenior staffLASS1977 - 1979 Retired KajikawaRyoichiNagaoya
UProfessor/PILASS/SLD1977 - 1999 Retired KawaharaHideakiTohoku
Upost docLASS/SLD1988 - 1994 KurikiMasaoTohoku
UGSE143~1996Hiroshima U.Professorv MatsuiTakayukiNagoya Upost
docLASS1979 - 1982KEKStaff MasudaHiroakiNagoya Upost docSLD1988 -
1996 Science and Humanity Innovation Center LLC Staff
MiyamotoAkiyaNagoya Upost docLASS/SLD1980 - 1984KEKAssoc. Prof.v
20NagamineTadashiTohoku Upost docSLD Tohoku U.Staffv
NaritaShinyaTohoku UGSSLD~1997Iwate U.Professorv
OhishiNoritsuguNagoya UGSSLD1994 - 1998Fujitsu Ltd.staff Fujitsu
OhnishiYukiyoshiNagoya UGSSLD1991 - 1995KEKAssoc. Prof.v
OzakiHitoshiNagoya UGSLASS1984 - 1988KEKAssoc. Prof.v PakC.O.Nagoya
Upost docLASS1979 - 1982KEK retiredStaff ShimomuraToshiroNagoya
Upost docLASS/SLD1980 - 1988industry SugiyamaAkiraNagoya
UGSLASS/SLD1984 - 1988Saga U.Professorv SuekaneFumihikoTohoku
UstaffSLD1990-1998Tohoku U Assoc. Prof.v SuzukiShiroNagoya Usenior
staffLASS/SLD1978 - 1983Saga UProfessorv 30TakahashiToruNagoya
Upost docSLD1991 - 1995Hiroshima U v TauchiToshiakiNagoya Upost
docLASS1981 - 1983KEKAssoc. Prof.v TogeNobuSLACStaffSLD1984 -
1993KEKSr. Exec.v UkaiKumataroINS, Tokyosenior staffLASS1978, 83-84
Retired YashimaJunTohoku UGSSLD~1998 YutaHaruoTohoku
UProfessor/PISLD1990 - 1998 Retired
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22 Ph.D theses from Nagoya, Tohoku and Stanford under Japan-US
with David Year Japan Experiment US NameInst.NameInst. 1986LASSP.
SinervoStanford. U. 1987N.AwajiNagoya U.LASS K. FujiiNagoya U.LASS
1988H. HayashiiNagoya U.LASS A. SugiyamaNagoya U.LASS F.
BirdStanford. U. H. OzakiNagoya U.LASS 1990 LASST. BienzStanford.
U. 1993LASSY.J. KwonStanford. U. LASSP. RensingStanford. U. 1995Y.
IwasakiTohoku U.SLD Y. HasegawaTohoku U.SLD Y. Ohnishi SLD 1996M.
KurikiTohoku U.E143 SLDT. PavelStanford. U. 1997S. NaritaTohoku
U.SLD 1998N. OhishiNagoya U.SLD J. YashimaTohoku U.SLD 1999K.
HasukoTohoku U.SLD K. AbeNagoya U.SLD 5 LASS 8 SLD1 SLD
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Doing research is one thing. Working together is the same
thing. F. Suekane of Tohoku Univ says I very much enjoyed the
physics, the work at SLAC and the life in California. While I was
serving as the accounting officer for the Japan-US program, he was
extremely helpful and cooperative in processing a huge amount of
paperwork on time (a stack of receipts and certificates for
millions of dollars of purchases). I thank him for everything that
made my work and life comfortable and fun. 24
Slide 25
With S.Suzuki, Hadron Symposium at KEK in 1988 And sharing a
good time, too. 25
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At Davids home, with Valery Telnov, Matteo Cavalli, Haruo Yuta,
Doreen, Michel Davier and Shiro Suzuki. Early 1990s. 26
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David played a critical role in leading and helping conception
and execution of SLAC programs in Japan-US cooperation in HEP.
Scientifically The LASS experiment to establish the full excitation
spectrum of orbital and radial light quark meson states
particularly in strange meson sector and strange-onium sector. The
SLD experiment to realize sophisticated particle ID and vertexing
techniques and run them through the experiment and analysis.
Administratively One of the pioneering HEP leaders in US who
mastered how to work with the Japanese (people and system). One
that helped the Japanese (people and system) master how to work
with US counterparts. Personally Showed us how the US and Japanese
HEP communities can be friends, by being one by himself first.
Thank you, David! Conclusions 28
