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The Detector Chapter of T he Detector Concept Report. 学術創成定例月会議 9月27日  宮本彰也. Very primitive & selected summary of on-going preparation Your comments/inputs are highly welcomed. 8 月 7 日の報告も見てください. The RDR and DCR.

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The detector chapter of t he detector concept report

The Detector Chapter of The Detector Concept Report




Very primitive & selected summary of on-going preparation

Your comments/inputs are highly welcomed


Gakujyutsu Sousei Monthly Meeting

The rdr and dcr
The RDR and DCR

  • DCR is associated with the RDR: Due end of 2006

  • Detector Concept Report consists of

    • Physics section : ~50 Pages

      • Editors: Klaus Moening, Yasuhiro Okada, Joe Lykken, Mark Oreglia, Satoru Yamashita, Adbelhak Djouadi

      • Wiki page:

    • Detector section: ~150 pages

      • Editors: Ties Behnke, C.J.S.Damerell, John Jaros, A.M.

      • Based on detector DOD's and input from experts

  • DCR is for Non-ILC HEP researchers/beginners

  • Executive summary

    • Executive summaries of RDR+DCR physics + DCR detector  Executive Summary with a help of communication experts

Gakujyutsu Sousei Monthly Meeting

The outline of the detector chapter

John Jaros + Experts

 Concept teams

 Ties Behnke + MDI experts

 C.Damerell + R&D panels

 A.Miyamoto + Concept Rep.

 open

 2IR panels

 Costing panels

 Experts : T.Takahashi + ?? + ??


The Outline of the Detector Chapter

  • General Introduction

  • Challenges for Detector Design and Technology

  • Introduction to the Detector Concepts

  • MDI Issues

  • Subsystem Designs and Technologies

  • Sub-Detector Performance

  • Integrated Physics Performance

  • Why We need 2IRs and 2 Detectors

  • Detector Costs

  • Future Options

  • Next Step

  • Conclusion

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Challenge for detector design and technology
Challenge for Detector Design and Technology

  • Editors (John Jaros) + Tim Barklow + Henri Videau + Keisuke Fujii

  • Outlines

    • Jet energy resolution: Required lum. vs resolution.

      • s(nnWW/ZZ), Br(HWW*), s(HHZ), SUSY(WW/ZZ)

    • Momentum resolution:

      • Recoil mass of ZH llX , Slepton Mass, Lum weighted ECM det. from m pair and mmg

    • Vertexing at ILC

      • Br(Hbb), Br(Hcc,gg), AFB(bb) with vertex charge

      • Challenges imposed by the ILC beam structure

    • Beamcal

      • High rad. Env., reacdout each bunch, need to veto H.E. e at the smallest possible angle

      • S(SUSY) vs veto efficiency, electron angle, ..

    • Others

      • Ebeam, Pol., High B Solenoid., Muons, required R&D

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Subsystem designs and technologies
Subsystem designs and technologies

  • Prepared by R&D panel members and experts

  • Authors assigned

    • Beam CAL : Ray Frey

    • Vertex detector : C. Damerell

    • Tracker – TPC : Dean Carlen - Silicon:

    • Calorimeter: Wolfgang

    • Solenoid : Akira Yamamoto

    • DAQ: Ecklund

  • Correcting outlines on each topics

Gakujyutsu Sousei Monthly Meeting

Sub detector performance
Sub-Detector Performance

  • Philosophy

    • Pickup typical results from concept studies in order to show that detector performance used in the physics chapter is confirmed with some extent by full simulations.

  • Basics

    • Material budget of detectors

  • Tracker performacne

    • Momentum resolution: TPC (GLD, LDC, 4th), SiD

    • Track reconstruction

      • TPC: Old Tesla TDR result

      • SiD: VTX based, ECAL Based + SiD standalone

Gakujyutsu Sousei Monthly Meeting

Comparison of momentum resolution
Comparison of Momentum Resolution



  • GLD vs LDC

  • Difference in Low Pt region ?Is it by IT matterial ?

  • High Pt: TPC only resol. Different.

  • Spatial resolution difference ?

  • With VTX/IT Constraint, similar performance.

  • No CosTheta dep. From GLD.


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Track reconstruction
Track Reconstruction


LDC ( Tesla TDR )

SiD promissed better pictures

By the end of Oct.

Gakujyutsu Sousei Monthly Meeting

Calorimeter and pfa performance
Calorimeter and PFA Performance

  • Calorimeter performance for single particle

    • g/electron energy resolution & angular resolution

    • Pi+/Kaon_L energy resolution & angular resolution

  • PFA issues

    • Describe what is PFA

    • Typical PFA algorithm(s)

    • Typical PFA performance at Z pole and higher energy

      • Resolution : 90% RMS

      • SiD result ?

      • LDC – 30%/sqrt(E) at Z pole, but not good for ttbar, 500GeV

      • GLD – 30%/sqrt(E) at Z pole, barrel region

        • Not good in endcap region  Hope to improve soon

        • Still tile geometry.  Strip geometry ?

        • High Energy performance not good.  Hope : good for baseline physics

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Typical pfa result
Typical PFA result


Gakujyutsu Sousei Monthly Meeting

Pfa cont
PFA – cont.

  • Particle ID's in jets (PFA)

    • Good PFA includes efficient and pure ID of g, e, m

    • Typical particle ID efficiency/purity shall (should ) be described.

    • What studies should be described and How ?

Gakujyutsu Sousei Monthly Meeting

Vertexing performance
Vertexing Performance

  • Impact parameter resolution: 2D or 3D

    • SiD, GLD, LDC (wil) have simular performance

  • Efficiency and purity of b/c tagging and vertex charge ID.

    • Mostly based on fast simulation.

    • How to describe ?

Gakujyutsu Sousei Monthly Meeting

Impact parameter resolution


Impact Parameter resolution



~1.5 mm at 100 GeV

~13 mm at 1 GeV

SiD promissed similar plot by the end of Oct.

Need a plot of cosq dependance.

Gakujyutsu Sousei Monthly Meeting

Muon id
Muon ID

  • Pt threshould to be identified by muon detector

  • How highly-segmented calorimeter is effective to identify low momentum muon particles ?

GLD case

Calorimeter based muon ID will be useful

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Beam calorimeter
Beam Calorimeter

  • Describe typical electron tagging efficiency

  • Dependance on

    • Beam parameters

    • Crossing anlge

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Time line to prepare the detector chapter
Time line to prepare the detector chapter

  • Time line:

    • At Vancouver:

      • Propose the outline

      • Authors are nominated/selected

    • By End of September

      • First draft including major part of figures collected.

      • Some figures will be preliminary

    • By End of October=ECFA meeting at Valencia

      • Combine drafts, make a balance, editing, draft open to society

    • By End of November

      • Get feedback from community

    • By end of 2006:

      • Shape up and complete DCR

 Slower than the initial plan

Gakujyutsu Sousei Monthly Meeting