SLIDE 1 title
Tohru Takahashi Hiroshima Univ.
2007/02/0８ KEK Topical Conference
科 学 雑 誌 「 ニ ュ ー ト ン 」 よ り
SLIDE 2 1 1 1 1 1 1 9 5 1 9 6 1 9 7 1 9 8 1 9 9 2 2 1 2 2
Year
Maximum Energy （ GeV)
KEK PS Electron Synchrotron (Tokyo) SPEAR DORIS PEP PETRA TRISTAN SLC LEP SLAC SPPS TEVATRON LHC BEVATRON ISR
ILC
The International Linear Collider
SLIDE 3 What I am going to talk
- Many review prospect was already given in this conference
– particle physics and Cosmology – neutrino physics : Status and Prospect – B physics; Status and Prospect – Physics with LHC + ILC – Prospects of LHC
- Start this year, expect physics results ~ 2010
- International
– synonym of complex organization/procedure
The International Linear Collider ~ Experiments will start ~10 years from now~
Messages to encourage young physicists
Remark: ACFALC/GDE meeting Feb4-7, ICFA press conf. Feb.8
SLIDE 4 The Standard Model
(3) (2) (1)
C L Y
SU SU U × × (1)
EM
U
Matter Field Gauge Fields
e
ν e
µ
ν µ
τ
ν τ u d
c
s b t
leptons quarks
well describes phenomena up to ~100GeV scale:i.e., 10-10s after Big Bang
18
~10 m
−
γ Z W± g
+ Right handed
A Scalar Field
(yet to be discovered)
SLIDE 5
Cosmological observation We know nothing about 96% of our universe
SLIDE 6 Hints for next step
Scalar Yukawa Gauge SM Higgs may just above current reach SLC/LEP/TEVATRON Extensions of SM which predict(expect): something new in TeV scale Supersymmetry Extradimenstions Explore TeV region Colliders
K, B, neutrino
SLIDE 7 A way to go
TeV scale Direct access is possible by current technologies
- f accelerators and detectors
not by single machine
SLIDE 8
It is likely ,,,, ~ <2010
(Higgs)
SM Higgs MSSM Higgs
SLIDE 9 ILC vs LHC
e e
+
Ｚ
H
bb
μ＋μ-
p p
g t
H
hadrons hadrons
pp Collision e+e- Collision a day for 5σ discovery
SLIDE 10 ILC is the precision machine
ECFA/DESY WG GLC GLC
~ 40 (0.03%) M MeV δ
SLIDE 11 GLC/NLC Concept GLC/NLC Concept
At the time KEK TC5 (2001)
Normal Conducting X(C) band 65MeV/m
TESLA Concept TESLA Concept
Super Conducting L band 25MeV/m
- no show stopper for both technologies
,,,,,, but,,,,
- too expensive to try both to move to the next step
(being ready to construct a machine)
SLIDE 12
SCRF Technology for the ILC
which? SC
The recommendation by International Technology Recommendation Panel (ITRP) August 2004
Will Construct one International Linear Collider by Superconducting RF
SLIDE 13 Standindg EM field
Superconducting RF
L band(1.3GHz RF) electron/posititon
1274mm 115.4mm
higher efficiency for RF->beam lower acc. gradient
Superconducting RF
SLIDE 14 Schematic of the ILC
Pol e- source e+ source main linac
- 200GeV – 500 GeV
- 500fb-1 in 4 years
- Pe- > 80%
- upgradeable to 1 TeV
31km(for 500GeV) Dumping Ring Beam Delivery System and Interaction Region
SLIDE 15
e+ source
Undulater based (Basic design) 150GeV e- 100GeV e- e+ e+ target pol γ by laser-Compton Compon based (Optional) e+ target Optical Cavities 1.3GeV e- Pol e+
SLIDE 16 Main Linac
12m 1m ~7000/beam ~800/beam ~11km/beam
SLIDE 17 100 nm influenza virus 5 nano m We need ultra-low emittance beam
5nm at IP
Getting High luminosity
L= frep n2
e
4πσxσy ∝PB∝￥/＄/¢
SLIDE 18 How we are doing
ILCSC
Global Design Effort (Aug 2005)
International Linear Collider Steering Committee
ICFA GDE
IUPAP
International Union of Pure and Applied Physics International Council of Scientific Unions
ICSU
International Committee for Future Accelerators
Asia Europe America
Nozaki Dugan Foster Barish
Informal information exchange with founding agencies many labs. univs. many labs. univs. many labs. univs. Bangalore Mar 2006 Vancouver Jul 2006 Valencia Nov 2006 Beijing Feb 4-7 2007 until yesterday
SLIDE 19
A snapshot
SLIDE 20
n s t i t u t e s , L a b s
Many Institutes over the world
TESLA Test Facility - DESY
SLIDE 21 ATF at KEK
100 of quad、 68 of sect. align within tens of µm: low emittance beam for the ILC has been achieved ATF2 (2007-) Testing Final Focus stabilization, nm cotrole
SLIDE 22
Relative Cost Gradient MV/m
2
$
lin cryo
a G b G Q ≈ +
STF at KEK 35MeV/m 45MeV/m pushing higher
SLIDE 23 ILC Detector R&D
Worldwide Study on Physics and Detector for Linear Collider (WWS) Co-Chair Organizing Committee SiD LDC GLD MDI R&D DCR
- J. Brau (US）
- F. Richard (EU)
- H. Yamamoto (Asia）
ACC. GDE ..... panels R&D group
SLIDE 24
Detector R&D
Three (+ 4th recently)
SiD（ US） LDC（ EU） GLD（ Asia） 4th
SLIDE 25
R&D matrix
SLIDE 26 Internationl Linear Collider Timeline
Barish LCWS06
2005 2006 2007 2008 2009 2010
Global Design Effort Project
Baseline configuration Reference Design ILC R&D Program Engineering Design Expression of Interest to Host International Mgmt
Draft of RD reported at Beijing: open to public soon ~First major milestone by International collaboration~ Engineering Design to bring the ILC ready for construction
SLIDE 27
Summary
‘80 ‘90 2000 2010 2020 SPPS Tevatron LHC B ν COBE WMAP LEP/SLC ILC
we are on the right track but, major players ~late 2010s will be,,
Tristan
