slide1 n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Calorimetry + muon/p-id summary PowerPoint Presentation
Download Presentation
Calorimetry + muon/p-id summary

Loading in 2 Seconds...

play fullscreen
1 / 21

Calorimetry + muon/p-id summary - PowerPoint PPT Presentation


  • 140 Views
  • Uploaded on

Calorimetry + muon/p-id summary. Dhiman Chakraborty Northern Illinois University. Calorimetry. Performance goals Electromagnetic Calorimetry (ECal) Hadronic Calorimetry (HCal) Digital Analog Particle-flow algorithms (formerly energy-flow) Simulations

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Calorimetry + muon/p-id summary' - tucker


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

Calorimetry

+ muon/p-id

summary

Dhiman Chakraborty

Northern Illinois University

calorimetry
Calorimetry
  • Performance goals
  • Electromagnetic Calorimetry (ECal)
  • Hadronic Calorimetry (HCal)
    • Digital
    • Analog
  • Particle-flow algorithms (formerly energy-flow)
    • Simulations
    • Particle identification (Digi/Ana)
  • Test Beam

Cal+mu+p-id+test-beam summary LC workshop, Cornell, 16 July, '03

performance goals
Performance goals
  • Jet energy measurement precise enough to separate Ws and Zs in hadronic decays on an event-by-event basis: ΔE = 0.3 sqrt(E [GeV])
  • Use track momenta for charged clusters; cal only for for neutrals: particle-flow algorithms
  • Identify non-pointing neutral clusters
  • Excellent hermeticity

Cal+mu+p-id+test-beam summary LC workshop, Cornell, 16 July, '03

slide4
ECal
  • Si-W (Oregon+SLAC)
  • Si-W-Scint (Kansas)
  • Scint-W (Colorado)
  • Crystal (Iowa+Caltech)
  • Cerenkov-compensated (Iowa+Fairfield)

All analog

Cal+mu+p-id+test-beam summary LC workshop, Cornell, 16 July, '03

si w ecal
0.5 cm x 0.5 cm

0.3 mm Si

3.5 mm/layer

30 layers

Rin = ~142 cm

Zmax = 2.1m

20X0, 0.8λ0

Sampling ~2%

5T field

Small Rm and fine segmentation aids PFAs

Europe on board

Design well under way

Electronics rough draft complete

Mechanical conceptual design started.

Tests, more simulations in the offing

Si-W ECal

Cal+mu+p-id+test-beam summary LC workshop, Cornell, 16 July, '03

si w scint scint w
More affordable than Si-W

Somewhat coarser segmentation – limited by fiber routing

Fine sampling and timing

Efficiency and uniformity need to be established – gang 3-5 tiles

Choice of photodet, fiber coupling …

Europe, Asia on board on scint. option

Detailed simulation studies in progress

Si-W-Scint. & Scint.-W

Cal+mu+p-id+test-beam summary LC workshop, Cornell, 16 July, '03

crystal cerenkov
Inexpensive

Excellent E resol.

(100% sampling)

No longitudinal segmentation – limitation to PFA?

Still in early stage

Extensive simulations needed and planned

Cerenkov-compensated precision calorimetry

Uses Cerenkov light to measure e,γ; ionization for hadrons, e – combine the two

Not much known

Crystal Cerenkov

Cal+mu+p-id+test-beam summary LC workshop, Cornell, 16 July, '03

slide8
RPC – Digital (ANL, U. Chicago, Boston, FNAL)

Scintillator – Digital (?) (NIU, UIC)

GEM – Digital (U Texas - Arlington)

Scintillator – Analog (Colorado)

~34 layers, ~3.5 cm thick w/ 2.5 cm thick stainless steel or similar absorber

~ 4λ0, ~6% sampling

1-10 cm2 cells

HCal

Cal+mu+p-id+test-beam summary LC workshop, Cornell, 16 July, '03

rpc dhcal
RPC DHCal
  • Multiple gas gaps, glass substrate, graphite/ink resistive layer
  • Avalanche mode operation
  • Prototypes constructed, electronics, DAQ in place, initial studies are very encouraging
  • Extensive testing, readout chip design in progress
  • Backed by detailed simulation

Cal+mu+p-id+test-beam summary LC workshop, Cornell, 16 July, '03

scintillator dhcal
Scintillator DHCal
  • Proven technology
  • Somewhat larger cells
  • Cheap production by in-house extrusion
  • MANY options for fiber routing, surface treatment, groove shape, transducer tested with encouraging results
  • Cosmic ray prototype stack ~ready
  • Bolstered by extensive simulation

Cal+mu+p-id+test-beam summary LC workshop, Cornell, 16 July, '03

gem dhcal
GEM DHCal
  • New technology
  • Double-gap
  • First prototype w/electronics assembled, operational
  • Initial tests with CR, source at par with results shown by developers
  • Multichannel prototypes under construction
  • Backed up by extensive simulation

Cal+mu+p-id+test-beam summary LC workshop, Cornell, 16 July, '03

scint hcal analog
Scint. HCal (analog)
  • Similar to Scint DHCal, but ~2.5 times larger tiles
  • Improve lateral resolution by staggering
  • Cell prototyping done
  • Stack prototype next
  • Simulation studies in progress

Cal+mu+p-id+test-beam summary LC workshop, Cornell, 16 July, '03

particle flow algorithms
Particle-flow algorithms
  • Several calorimeter groups are deeply involved in simulation and software development as well as PFA development (NIU, ANL, Colorado, UTA, …)
  • First jet reconstruction results are most encouraging, prompting us to more realistic simulations and sophisticated reco algorithms
  • Much effort invested

Cal+mu+p-id+test-beam summary LC workshop, Cornell, 16 July, '03

lc tb goals and organization
LC TB Goals and Organization
  • Detector groups have made significant progress
  • Individual detector groups have been working on TB efforts independently
    • ECAL and HCAL testbeam performed already in Europe and Asia
    • US Calorimeter group leading the effort
    • Some documents for requirements exist: e.g. Calorimeter group
  • It is time for more systematic organization for a coherent effort for Test Beam
    • Better if groups work together for preparing common needs
    • One communication channel to outside  Provides stronger arguments and accomplish better supports
    • Provide focus to detector development efforts
  • Information on available TB facilities compiled
    • E. Ramberg from FNAL gave detailed status report on MTBF
  • Need to collaborate with European and Asian colleagues

Cal+mu+p-id+test-beam summary LC workshop, Cornell, 16 July, '03

summary of tb needs

H.E.Fisk

Summary of TB Needs

Cal+mu+p-id+test-beam summary LC workshop, Cornell, 16 July, '03

slide16
Kick-off LCTB group with the responsibilities
    • Sets the goals and determines directions for coherent TB preparation for all detector groups
    • Keep up with progress through regular meetings
    • Sets priorities if conflict arises
    • Represents LC TB efforts to outside and facilities
    • Collaborate with European and Asian TB groups
  • Discussion session had some 30 members
    • Set action items for the next few months
      • Setup communication (mail list, web page and meetings) by Sept., 2003
      • Compile a TB requirement document that includes all detector groups, if possible, in all regions, by Jan meeting
      • Contact the leaders of LCRD and UCLC for separate sections in the upcoming proposals: Sept. 2003
      • Complete the list of subgroup reps.: Sept. 2003

Cal+mu+p-id+test-beam summary LC workshop, Cornell, 16 July, '03

subgroups
Subgroups

Cal+mu+p-id+test-beam summary LC workshop, Cornell, 16 July, '03

muon pid summary
Muon & PID Summary

R. Wilson – CSU: Particle ID Software Infrastructure

  • Embedding PID in the overall LCD/JAS s/w infrastructure?
  • Fast Simulation/Reconstruction : dE/dx tool; code checks; muon fast simulation.
  • Cross subsystem PID.

A. Maciel – NIU: Simulation Software Development

  • Extension of generalized and universal simulation

framework – new worldwide effort.

  • Planar muon detector example with 45o strips.

Big advance!

u vs. v for 2 tracks

Cal+mu+p-id+test-beam summary LC workshop, Cornell, 16 July, '03

muon pid summary cont
Muon & PID Summary (cont.)

C. Milstene – NIU: Muon ID Software Development

  • Resurrection of m code.
  • Verification of M. Piccolo’s muon ID

for single particles and b-b events.

G. Fisk – Fermilab: Scintillator Muon Detector

Prototype Planes: Description

  • General description of scintillator strip layout.

M. Wayne – UND: Fiber Connections & Routing

  • Discussion of fiber associated with bringing the WLS light out of the scintillator strips and onto a multi-anode photomultiplier.

Cal+mu+p-id+test-beam summary LC workshop, Cornell, 16 July, '03

muon pid summary cont1
Muon & PID Summary (cont.)

P. Karchin – WSU: MAPMT Readout and Calibration Issues

  • Test results on Hamamatsu M-16 multi-anode PMT. Calibration ideas.

R. Wilson – CSU Geiger Photodiode Array Readout Test

  • Description of tests performed on prototype APD (avalanche photo-diode).

M. Piccolo – INFN RPC Prototype Design Issues

  • First test results for new glass RPCs.
  • Rate capability studies
  • Test Beam at Frascati

Plateau

curve

Cal+mu+p-id+test-beam summary LC workshop, Cornell, 16 July, '03

prototype module layout
Prototype Module Layout

5.0 m

2.5m

43 full strips

43 short strips

3.6m (L) x 4.1cm (W) x 1cm (T)

3.6m => 0m long

Read out: both ends of full strips; one end of short strips (except the shortest 22).

2*(43 + 21) fibers/side =128 channels = 8 (1.2mm dia) fibers/pix * 16(4 x 4mm2) pixels => Equivalent of One MAPMT/prototype plane

Cal+mu+p-id+test-beam summary LC workshop, Cornell, 16 July, '03