tohru takahashi - kekresearch.kek.jp/group/kektc6/slides/ilc-takahashi-070213.pdfslc lep slac spps...
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![Page 1: Tohru Takahashi - KEKresearch.kek.jp/group/kektc6/slides/ILC-takahashi-070213.pdfSLC LEP SLAC SPPS TEVATRON LHC BEVATRON ISR ILC The International Linear Collider What I am going to](https://reader033.vdocuments.net/reader033/viewer/2022042101/5e7e1de23e47e34773272c6c/html5/thumbnails/1.jpg)
title
Tohru TakahashiHiroshima Univ.
2007/02/08KEK Topical Conference
科学雑誌「ニュートン」より
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1
10
100
1000
10000
1950 1960 1970 1980 1990 2000 2010 2020Year
Maxim
um E
nergy
(GeV) KEK PS
Electron Synchrotron (Tokyo)
SPEARDORIS
PEP
PETRA
TRISTAN
SLC
LEP
SLAC
SPPS
TEVATRON
LHC
BEVATRON
ISR
ILC
The International Linear Collider
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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 physicistsRemark: ACFALC/GDE meeting Feb4-7, ICFA press conf. Feb.8
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The Standard Model
(3) (2) (1)C L YSU SU U× ×
(1)EMUMatter Field Gauge Fields
eνe
µνµ
τντ
ud
c
s bt
leptons
quarks
well describes phenomena
up to ~100GeV scale:i.e.,
10-10s after Big Bang
18~ 10 m−h
γ Z W± g
+ Right handed
A Scalar Field
(yet to be discovered)
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Cosmological observation
We know nothing about 96% of our universe
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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
SupersymmetryExtradimenstions
Explore TeV region
Colliders
K,B,neutrino
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A way to go
TeV scale
Direct access is possibleby current technologies
of accelerators and detectors
not by single machine
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It is likely ,,,, ~ <2010 (Higgs)
SM Higgs MSSM Higgs
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ILC vs LHC
e
e+
-
Z
Z
H bb
μ+μ-
-
bb
p
p
-g
g
tH
hadrons
hadrons
pp Collision
e+e- Collision
a day for 5σ discovery
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ILC is the precision machineECFA/DESY WG
GLC
GLC~ 40 (0.03%)M
MeVδ
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GLC/NLC ConceptAt the time KEK TC5 (2001)
Normal Conducting X(C) band 65MeV/m
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)
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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
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StandindgEM field
Superconducting RF
L band(1.3GHz RF)
electron/posititon
1274mm115.4mm
higher efficiency for RF->beam lower acc. gradient
Superconducting RF
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Schematic of the ILCPol e- sourcee+ 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
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e+ sourceUndulater based (Basic design)
150GeV e- 100GeV e-e+
e+ target
pol γ by laser-Compton
Compon based (Optional)
e+ targetOptical Cavities
1.3GeV e-
Pol e+
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Main Linac
12m
1m
~7000/beam
~800/beam
~11km/beam
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100 nm
influenza virus5 nano m
We need ultra-low emittance beam
5nm at IP
Getting High luminosity
L=frep n2
e
4πσxσy
∝PB∝¥/$/¢
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How we are doing
ILCSC
Global Design Effort (Aug 2005)
International Linear Collider Steering Committee
ICFA
GDE
IUPAPInternational Union of
Pure and Applied Physics
International Council of Scientific Unions ICSU
International Committee forFuture Accelerators
Asia Europe AmericaNozaki DuganFoster
Barish
Informal information exchange with
founding agencies
manylabs.
univs.
manylabs.
univs.
manylabs.
univs.
Bangalore Mar 2006Vancouver Jul 2006Valencia Nov 2006Beijing Feb 4-7 2007
until yesterday
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A snapshot
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●: Institutes, Labs
Many Institutes over the worldTESLA Test Facility - DESY
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ATF at KEK100 of quad、68 of sect.align within tens of µm:
low emittance beam for the ILChas been achievedATF2 (2007-)
Testing Final Focusstabilization, nm cotrole
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Acc. gradient w/ SCRF
Relative C
ost
Gradient MV/m
2
0
$ lincryo
a GbG Q
≈ +
C. Adolphsen (SLAC)
STF at KEK
35MeV/m
45MeV/m
pushing higher
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ILC Detector R&DWorldwide Study on Physics and Detector for Linear Collider
(WWS)
Co-Chair
Organizing Committee
SiD LDC GLDMDI R&D DCR
J. Brau (US)F. Richard (EU)H. Yamamoto (Asia)
ACC.
GDE
.....
panels R&D group
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Detector R&DThree (+ 4th recently)
SiD(US) LDC(EU) GLD(Asia)
4th
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R&D matrix
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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
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Summary‘80 ‘90 2000 2010 2020
SPPS Tevatron LHC
B
νCOBE WMAP
LEP/SLC ILC
we are on the right trackbut,
major players ~late 2010s will be,,
Tristan