ILC Status in Japan
Hitoshi Yamamoto
Tohoku University
November 29, 2013
Orsay, Paris
HEP Community
KEK roadmaps
• 2007
– ILC at the top of the
pyramid
• 2013
– KEK will play a central role in creating an international
preparatory group and will lead the effort on advanced R&D,
the engineering design of the apparatus and facility, and the
organizational design toward groundbreaking for the linear
collider project to be hosted in Japan, within the framework
of a global collaboration.
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JAHEP (Japan Association of High Energy Physicists)
• A report on large projects (March 2012)
– On ILC:
Should a new particle such as a Higgs boson with a mass below
approximately 1~TeV be confirmed at LHC, Japan should take the
leadership role in an early realization of an e+e- linear collider. In
particular, if the particle is light, experiments at low collision energy
should be started at the earliest possible time.
(Now, Higgs particle has been found and it is ‘light’)
• A proposal for staging of ILC (October 2012)
– Staging
• A Higgs factory with a CM energy of ~250 GeV to start
• Upgraded in stages to ~500 GeV (TDR baseline)
• Technical expandability to ~1 TeV to be secured
– Guideline for cost sharing
• The host country to cover 50% of the expenses (construction) of
the overall project of the 500 GeV machine. The actual
contributions left to negotiations among the governments.
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ILC Candidate Site in Japan
Kitakami
• Kyushu
– Sefuri mountains
• Tohoku
– Kitakami mountains
‘ILC site evaluation committee’ (JAHEP)
Co-chairs: Kawagoe, Yamamoto
evaluated them based on
1. Geology and other technical aspects
2. Infrastructure and economic ripple effects
Selected the Tohoku Site
Sefuri
Tohoku Site (Katakami Mountains)
•
•
•
•
Flexibility in positioning the 50 km route
Shorter access tunnels
Natural Drainage
etc…
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ILC route vertical cross section
Kitakami
Sefuri
Matsuura River
０．５% tilt
International Supports
• Europe : ‘European Strategy’ (March 22, 2013)
– There is a strong scientific case for an electron-positron collider,
complementary to the LHC, that can study the properties of the Higgs
boson and other particles with unprecedented precision and whose
energy can be upgraded … The initiative from the Japanese particle
physics community to host the ILC in Japan is most welcome, and
European groups are eager to participate. Europe looks forward to a
proposal from Japan to discuss a possible participation.
• US : HEPAP facilities subpanel report (March 22, 2013)
– The initiative from the Japanese particle physics community to host the
ILC in Japan is very welcome, and the U.S. particle physics community
looks forward to a proposal from Japan to discuss possible participation.
– For the final US strategy, wait for the HEPAP subpanel (P5) report
(March-May, 2014)
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National Politics
LDP
(The Ruling Party)
election platform
‘ILC’ appears twice explicitly
32 Rebuilding true command tower functions that strongly advance
science and technology policies
– …We will actively promote the critical fields of energy creation, energy
conservation, energy storage, etc. as knowledge-concentrated national
strategies - for example, our country should be able to play a leading role
in creation of international centers for scientific innovations such as the
ILC (the international linear collider) project which is a grand project in the
field of particle physics.
92 Creation of globally top-class centers for research and development
– …We will significantly strengthen supports for universities and public
research facilities that perform studies at levels above the intentional
standards, such as significant expansion of WPIs and playing a leading
role in creation of international centers for scientific innovations such as
the ILC (the international linear collider construction) project which is a
grand project in the field of particle physics.
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Policy Speech by PM Abe
(Japanese version of ‘State of the Union’)
Feb 28, 2013
• ‘Japan is driving global innovation in cutting-edge areas, including
among others the world's first production test of marine methane
hydrate, a globally unparalleled rocket launch success rate, and our
attempts to develop the most advanced accelerator technology in
the world.’
PM Abe at the
83rd session of Diet
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Press conference by
the MEXT minister Shimomura
Jan 18, 2013
‘(On ILC) We would like to consider the plan for the
near future, while as the government actively
negotiating with relevant countries in the first half
of this year … we are now studying the legal
framework.’
Government has already started to contact (unofficially) relevant countries.
So far, not very positive responses.
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Science Council of Japan
Requested by the MEXT to review the ILC situation.
Report submitted : Sep 30, 2013.
•
…we fully acknowledge the necessity and academic value of an electronpositron collider that is complementary to the LHC.
• …the Science Council of Japan proposes that the Japanese government
appropriate necessary fund to study various issues toward deciding the
implementation of the ILC project, and intensively conduct examinations
and studies for 2 to 3 years by a group including experts outside of the
relevant field and related government offices.
• In parallel with the above study and examination, negotiations should be
conducted with research laboratories and funding authorities of relevant
countries and regions to clarify the issues such as the international cost
sharing.
(Unofficial translation by HY)
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Science Council of Japan Report
• It also stated ‘It is too early for the full implementation of the
ILC’. (unofficial translation by HY)
– This is a matter of course since the ILC is an international project that
requires commitments of participating countries and regions before
such can be decided.
• MEXT has requested ~$0.5M for the investigatory study on
the ILC, and a committee is being formed responding to the
report.
– A major milestone would be reached when it is approved by the
financial department.
– The ILC task force had been formed in Feb 2013, headed by the MEXT
vice minister.
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Diet
• ‘Federation of Diet Members for Promotion of the ILC’
– Established in 2008
– Expanded to a multi-partizan group
 Re-invigorated after the Higgs discovery: now ~160 diet members
(out of 700 total)
 New chair: Mr. Kawamura (former MEXT minister)
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Mr. Kawamura’s Talk at LCWS13
• Text (in English)
– Can be downloaded from the LCWS13 home page
• Highlights
– We are aware that people are usually worried that an increase of
academic budget in one field may mean a decrease in other fields. …
We shall arrange a dedicated budget to accommodate its much wider
implications. It is the responsibility of the government to carry this out.
– The Department of Education has requested the Department of
Finance to provide an ILC investigation fund of 50 million yen in next
year's budget. … once it has been approved, we members of the house
will have achieved one of the most important milestones of recent
years.
Private Sector
Science-Industry Alliance
• ‘Advanced Accelerator Association for promoting science and
technology (AAA)’
–
–
–
–
Established in 2008
Headed by a former CEO of Mitsubishi Heavy Industries: Mr. Nishioka
Hitachi, Toshiba, Mitsubishi, etc.
~90 industries + ~30 universities
Intensive activities:
• Lecture series, symposiums
• Civil engineering study
• Studies on large projects
• Science-industry cooperation
•…
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Support by Industries:
A report by the Association of Corporate Executives
(経済同友会: one of the two such groups in Japan）
‘… The Japanese government should announce the intention
to site the ILC in Japan, and propose to related countries to begin
discussions toward its realization. ‘ (Apr 2013)
Issued a supporting comment (Aug 2013)
Japan Chamber of Commerce&Industries
Issued a similar comment (Aug 2013)
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Japan Policy Council
• A private organization (an influential thinktank)
– Led by Hiroya Masuda
• Professor of University of Tokyo
• Former minister of internal affairs and communications
• Former governor of Iwate prefecture
– Issued a report:
• Build a role model for the creation of a global city by reforming
a local city through founding an international organization for
the International Linear Collider (ILC).
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Media Coverage of the ILC
• Many TV and newspaper coverages
– ‘Close-up Today’ (クロースアップ現代）Feb 2013
NHK’s flag-ship news program (30 min)
‘Go beyond Higgs – Japan’s Large Accelerator Project’
Anchor: Hiroko Kuniya
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ILC Timeline
Proposed by LCC
• 2013 - 2016
– Negotiations among governments
– Accelerator detailed design, R&Ds for cost-effective production, site
study, CFS designs etc.
– Prepare for the international lab.
• 2016 – 2018
–
–
–
–
‘Green-sign’ for the ILC construction to be given (in early 2016 )
International agreement reached to go ahead with the ILC
Formation of the ILC lab.
Preparation for biddings etc.
• 2018
– Construction start (9 yrs)
• 2027
– Construction (500 GeV) complete, (and commissioning start)
(250 GeV is slightly shorter)
Summary
• The discovery of Higgs has greatly invigorated ILC activities in
Japan at many levels.
• Japanese government is moving seriously toward realizing the ILC
in Japan as a truly international project.
• International agreement among relevant countries is essential for
Japanese government to decide to host the ILC.
• In order for relevant governments to act positively on the ILC, it is
critical that they see that researchers in their own country wants
the ILC.
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Backups
F
ILC TDR Completion
June 12, 2013
‘A World-wide Event – from design to reality’
Fermilab
Tokyo
CERN
New International LC Organization
LC Board
LCC (LC Collaboration)
Chair : Sachio Komamiya
Deputy Director
LC Collaboration Director
Hitoshi Murayama
Lyn Evans
ILC accelerator
CLIC accelerator
ILC/CLIC Phys./Det.
Mike Harrison
Steinar Stapnes
Hitoshi Yamamoto
In full operation since June, 2013
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Activities of the new Federation (Diet)
•
General meetings
– Feb 1. 2013 : re-establishing the federation
Huge attendance:
45 diet members and 25 proxies + researchers/companies
– Feb 26, 2013 : re-organization
– March 25, 2013 : invite Lyn Evans (LC collaboration director).
– Apr : two general meetings planned
•
Mini-lecture series

•
eg: March 13, by Sakue Yamada etc.
Visit Washington DC
– Apr 29-May 1, 2013
– goal : enlarge US-Japan collaboration on the ILC
– Joint symposium US-Japan w/industries planned
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Q&As at the Diet
Mar 4, 2013
•
Q : Mr. Ohata’s Question on the ‘Strategy for Growth
‘Establishing science&technology and intellectual property rights has
greatly contributed to the progress of Japan in the past. What is your
thought on the basic science&technology including the linear
collider?’
•
PM Abe’s answer on the ILC
‘We will pull along the innovations through accelerator technologies that are
at the global state-of-the-art. The ILC is part of it and it is a project that
inspires great dreams. On the other hand, it requires a large amount of
budget.’
‘As the government, we will proceed checking the progress of the
international design activities at researchers’ level .’
(There have been many answers in the Diet by Ministers in the past)
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