the international linear collider project

16 November 2007 Akiya Miyamoto

Do Son ACGRID School Symposium

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The International Linear Collider Project

Akiya Miyamoto

KEK

Particle Accelerators and Colliders



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Explore micro-world

1932 Lowlence’s

cyclotron : 80 keV p-p collider

2008 CERN/LHC

p-p collider, 14 TeV

Radius ~ 9km

~x p

International Linear Collider : ILC

• e+e- Collider• Ecm: 0.2 ~0.5 TeV 1TeV• ∫Ldt = 500 fb-1 in 4 years



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Why e+e- collider ?



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p p

e+ e–

Collisions of elementary particles

• Uses all energy for collisions• Clean measurements• Sensitive to faint signals of

new particles/phenomena• State-of-the-art detector

• Initial 4 vectors and polarizationsare known and controllable

• Precise tests of theory

Well known initial state

Progress of e+e– colliders



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J/

Circular collider

Linear Collider

Tera Scale: EW symmetry breaking



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dee

us

cb

t Wg G

HH

• Standard ModelLEP WG 2006

Theoretical Higgs mass bound

ILC reach

Higgs – Vacuum



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Higgs coupling proportional to mass in the SM

Did Higgs break the symmetry ?

Condensed

in vacuum ?

Supersymmetry



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Fermion Boson

• Do forces unify ?• Do Quarks and Leptons unify ?

Extending to Higher energy/Early Universe

Cosmology and ILC



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00

00

00

is a dark matter candidate

- Does exist ?

- Can be the dard matter ?

Extra Dimention



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Brane world ?- graviton may live in bulk

our world (4D)

extr

a di

m.

(bul

k)

e+e–

Linear collider

Number of Extra Dimension

Precision Physics



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ILC

ACFA WG

Top mass: mt < 100MeV( 1/10 better than LHC )

Top couplings

ILC, ILCSC, GDE

• The ILC project was initiated in 2004 with the endorsement by ICFA and ILCSC

• GDE was formed to develop the ILC accelerator design.



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High Gradient Acceleration



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3 types of cavity shapes under study

9 cell cavity~ 1m long

Towards 31.5 MeV/m

1 Cell RE cavity: > 50 MeV/m

10MWL band klystron

High Luminosity



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~ 5 nm

• Low emittance machine optics• Contain emittance growth• Squeeze the beam as small as possible

e- e+

KEK, ATF since 1993

Test bench for ILC-DR

ATF2 line

ILC Facility



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Two tunnels for

Accelrator and service

Particle detector

~31km tunnelResearch Area

Dumping Ring

ILC Reference Design Report



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Released 2007 summer: http://www.linearcollider.org/cms/?pid=1000437

Executive Summary

Physics at the ILC

Accelerator Detectors

RDR: 4 volumes/ 774 pages

http://www.linearcollider.org/cms/?pid=1000437

http://www.linearcollider.org/cms/?pid=1000437

RDR Authors

AsiaNorthAmerica

Europe

~1800 authors

~325 institutes

Connected through Internet

GDE plan and Schedule



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Next milestore

Detector Roadmap

• Detector time line should be synchronized with accelerator time line– because detector construction time would be similar to

accelerator construction time

• 2010: ‘light’ two detector EDRs– To be ready together with the accelerator EDR– Not for construction– Cost accuracy consistent with that for accelerator

• 2008: Select two groups to write EDRs based on LOIs.• October 4, 2007:

– ILCSC announces call for LOIs, due 1 October 2008.



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Detectors for ILC experiments



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Tracker: Charged particles

pt/pt : 1/10 of LHC

Higgs recoil to Z

Calorimeter:Neutral particlesE/E <½ of LEP

good badW/Z separation

WWZ

Z

Vertex Detectorb/c/ taggingRvtx<1/5 LHC

Improves (c-tag)

Detector concepts



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GLD

Small cell CAL.

Gaseous Tracker

3T

Asian based

LDC

Small cell CAL.

Gaseous Tracker

4T

European based

SiD

Small cell CAL.

Silicon Tracker

5T

NA based

4th

Dual RO CAL.

Gaseous Tracker

3.5T (Dual Sol.)

GLD+LDC ILD

ILC Detector R&D



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CPCCD Vertex

Detector Sensor Design

KPiX FE RO chip

Silicon Sensor test

Cutting-edge detector technologies

For TPC beam test

Scintillator sensors MPPCCalorimeter test

Simulation Studies



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Geant4 simulation ILC event

bcuds

Vertexreconstruction

Challenging perfect reconstruction of ILC events

Cal hits and track matching: PFA

Reconstruct Higgs in jet-mode

GRID for ILC



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Why GRID ?• A large CPU and storage resources for detector

optimizations and physics performance studies• Share CPU/storage/human resources for studies in a global

framework

Two VOs, ILC and CALICE, are in place• ILC VO

• a global VO of EGEE• a number of GRID sites world wide support ILC

• CALICE VO• CALICE is an international collaboration for calorimeter R&D

( ~ 200 phys.&eng. / 29 labs./12 countries in Asia/EU/NA• Test beam data (~14TB) is maintained and heavily used.

Conclusion

• ILC is crucial to push forward our understanding of fundamental low of nature.

• Research and Developments for accelerators and detectors for ILC are extensively pursued world wide.

• GRID is the indispensable elements of ILC studies.



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ILC NewsLine



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NewsLine Q

ILC Passporttranslating to many languages

http://www.linearcollider.org/



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B A C K U P

S L I D E S

ILC Design Parameters



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Max. Center-of-mass energy 500 GeV

Peak Luminosity ~2x1034 1/cm2s

Beam Current 9.0 mA

Repetition rate 5 Hz

Average accelerating gradient 31.5 MV/m

Beam pulse length 0.95 ms

Total Site Length 31 km

Total AC Power Consumption ~230 MW

the international linear collider project

Documents

possible ee

ilce e colliderecm

smdid higgs

study9 cell cavity

types of cavity shapes

ilc accelerator design

emittance growth

brane world