News itemand

introduction of working groups

1http://www.cern.ch/lcd Lucie Linssen, 22/2/2010

Lucie Linssen

LCD monthly meeting

February 22nd 2010

Upcoming conferences/meetings (1)

2http://www.cern.ch/lcd Lucie Linssen, 22/2/2010

Dedicated Software meeting on geometry toolkit (and Mokka/Marlin)

February 24th at CERN

http://indicobeta.cern.ch/conferenceDisplay.py?confId=84903

Dedicated meeting on CALICE tungsten HCAL prototype

March 2nd at Desy

http://ilcagenda.linearcollider.org/conferenceDisplay.py?confId=4442

(see also testbeam slides W. Klempt, at the end of this talk)

CALICE workshop in Arlington-Texas, March 10-12

http://www.uta.edu/physics/meetings/hep/calice/index.html

LCD contribution requested to presentations on:

Tungsten HCAL, Geant4 hadronisation

Upcoming conferences/meetings (2)

3http://www.cern.ch/lcd Lucie Linssen, 22/2/2010

LCWS10

March 26-30 in Beijing

http://lcws10.ihep.ac.cn/

We have to propose CLIC physics/detector study contributions (within ~1

week, contact Dieter Schlatter). Sessions on: Tracking/vertexing, MDI session,

Calorimetry+muon, Simulation+reconstruction, several sessions on physics

subjects

FCAL meeting

Krakow, April 12+13 2010

ECFA linear collider workshop (joint ILC and CLIC)

October 18-22 2010, CERN (CERN + CICG Geneva)

Joint ILC-CLIC working group on physics/detector

4http://www.cern.ch/lcd Lucie Linssen, 22/2/2010

Marcel Demarteau, Francois Richard, Felix Sefkow, Marcel Stanitzki, Mark  Thomson,

Sakue Yamada (chair), Lucie Linssen (deputy-chair)

Physics/detector CDR layout and organisation

CLIC CDR due for end April 2011 (for council meeting of June 2011)

1. Introduction

2. CLIC physics potential

3. CLIC experimental conditions and detector concept design choices

4. Detector performance requirements

5. Tracking system

6. Calorimeter system

7. Superconducting Solenoid

8. Muon system

9. Very forward calorimeters

10. Readout electronics and data acquisition

11. Detector integration

12. Physics performance

13. R&D prospects

14. Costs

15. Conclusions

5http://www.cern.ch/lcd Lucie Linssen, 22/2/2010

Three main editors

• SiD (ok), ILD, CLIC (ok)

• from 3 regions (Americas ok,

Europe ok)

Chapter editors will be nominated by

main editors/editorial_board

CDR working groups (1)

6http://www.cern.ch/lcd Lucie Linssen, 22/2/2010

Currently putting a few working groups in place in preparation for the CDR:

1: CLIC physics potential => convener tbc

Scenarios, e.g. also taking possible early LHC results into account

2: Physics observables related to jets (SW) => convener Mark Thomson

PFA optimisation for high-E jets, jet resolution, jet algorithms, missing E

3: Physics observables related to tracks (SW) => convener Marco Battaglia

Track/vertex optimisation, flavour tagging, lepton id (tau id), muon background

4: Vertex detector (mostly HW) => convener (under discussion, tbc)

Review possible solutions for a CLIC vertex detector with time-stamping, set

R&D goals

5: Engineering, layout, solenoid, cost => convener Konrad Elsener

In addition there is the already existing MDI wg, led by Lau Gatignon

http://indico.cern.ch/categoryDisplay.py?categId=2003

CDR working groups (2)

7http://www.cern.ch/lcd Lucie Linssen, 22/2/2010

The working groups provide platforms of discussion on targeted subjects. They will make it

easier for participants with common interests to contribute, to exchange information and to

plan/organise/streamline the work.

There is a limited number of working groups, adapted to the current status of the project and

also adapted to the available resources (creating many more wg’s would give a broader

coverage, but would not be well adapted to the current level of resources).

Current status of the CDR preparation (simulations): “getting tools reading in preparation for

benchmarking”. We have ~5 months of time for this, trying to move to “production and

benchmarking” by August.

Add that point we may redefine the wg’s, e.g. add “benchmarking” (possible merge of 2+3?)

We will put web pages / indico / mailing lists in place to help getting the wg’s started asap.

I suggest that the conveners each appoint an alternate.

I suggest that wg’s to give short summaries at the monthly meetings.

8

Preliminary PS/SPS Schedule we run 7/10 to 21/10

Discuss next week at DESY 2 March:

W delivery schedule

Opt for 4 batches each 5 absorber plates all 2 weeks from mid June onwards

Discuss when and how to transport “Cassettes” from DESY to CERN and

Rack with read out and calibration electronics from FNAL to CERN

Test beam setup

Define “all” cables and gas pipes. To be installed by 29 April 2010

(No user in T9 period from 16/8 to 19/9, but will maybe be filled)

xxxxxxxxxxx

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Beam

1.3 above floor

Beam Counter

Delay wire chamber

Area 10cm * 10cm

existing

Cherenkov (CO2)

existing

to separate e- from π-

1Gev 50% e- + 50% π-

5Gev 10% e- + 90% π-

Scintillators

Fingers 1cm *10 cm

General 10cm * 10cm

Veto 25cm * 25 cm (with hole of 4cm)

Veto behind < 50 cm * 50cm

Calorimeter Prototype

Telescope

GEM chamber σ ≈ 1mm

T9 Test Beam Setup

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Triple-GEM Detector

“Standard” size :

10cm * 10cm

Ar/C02 70:30 gas-mixture

One may choose pad plane

geometry

11

Central scintillator

40 mm3.6 mm 100 mm

mmmm

112

6.3

Cathode Plane and Read Out

Resolution:

11*11 = 121 Channels

Digital read out

AVP-25 chip

128 channels per chip

Need 1 chip/ chamber

H. Mueller is producing

read out chain12