IDAG Tracking Review

Groups have not yet submitted LOI Avoid ‘temptation’ to regard as a Technical Design Review Rules Specified –leave groups to work without IDAG ‘pestering’ Limit present exercise to extant material Limit to RDR, despite limitations – [otherwise too open-ended]

( not consider Beijing for example) *[not adhered to]

Light Touch Given time [~40min presentations]

Limit to technologies, exclude concepts

Technologies break into three basic groups Vertexing

Silicon pixels Tracking

Silicon strips TPC + other gaseous detectors [CluCou]

One short summary of each (~10 mins) Silicon Pixels Eckhard Silicon Strips Richard TPC Mikhail

ILC Tracking

PF Calorimetry, Missing Energy Highly efficient tracking P down to very low values, full solid angle

Mass, BR,.. Measurements [40% lum gain] Pt/Pt

2 ~ 3.10-5 + 10-3/Ptsin

Heavy flavour tagging Full vertex topology reconstruction Quark charge, even low P required

Etc..

ILC Tracking

Requirements and technology choices driven by physicsprocesses, background tolerance and bunch structure.

Not simple, but might be characterised by below

Defined by physics requirements, - integrated concepts

Very low radius first layer [~2-3cm] Vertex detector hit resolution ~ 4 m [impact param ~10m] Material budget ~ 5% central - ~20% forward ~ 100m accuracy throughout volume [better for main Si] ~ >98% tracking efficiency Two track resolution suited to PFA calorimetry [inside jets] Multiple samples through bunch train required Tolerant of anticipated machine backgrounds

ILC Tracking/Vertexing Requirements

• None• Wait for groups to submit work• Main questions which need to be addressed are outlined in RDR,

ILC 2007 review etc..

ILC Tracking Conclusions