4th Concept Detector Performance · 2018. 11. 5. · Pad Outer2: Width 0.34 cm Length 0.85 cm 5 MuMega rows 512 pixels with 55 µm x 55 µm Cluster statistics included (30/cm) ε=

November 9th, 2006November 9th, 2006 Valencia 2006 Valencia 2006 -- C. GattoC. Gatto 11

4th Concept Detector 4th Concept Detector PerformancePerformance

TrackingTrackingCalorimetryCalorimetry

Physics StudiesPhysics Studies

On behalf of 4th Software GroupOn behalf of 4th Software GroupE. CavalloE. Cavallo

D. BarbareschiD. BarbareschiV. Di BenedettoV. Di BenedettoA. MazzacaneA. Mazzacane

G. TassielliG. TassielliG. TerraccianoG. Terracciano


4th Concept Software Framework: 4th Concept Software Framework: ILCrootILCroot

�� Unique framework for generation, simulation, Unique framework for generation, simulation, reconstruction and analysisreconstruction and analysis

�� CERN architecture (Aliroot)CERN architecture (Aliroot)

�� Uses ROOT as infrastructureUses ROOT as infrastructure�� All ROOT tools are available (I/O, graphics, PROOF, data All ROOT tools are available (I/O, graphics, PROOF, data

structure, etc)structure, etc)

�� Extremely large community of users/developersExtremely large community of users/developers

�� TGenerator for events generationTGenerator for events generation

�� Virtual Geometry Modeler (VGM) for geometryVirtual Geometry Modeler (VGM) for geometry

�� Virtual Montecarlo (VMC) for simulationVirtual Montecarlo (VMC) for simulation

�� Six MDC have proven robustness, reliability and Six MDC have proven robustness, reliability and portabilityportability


Detector SimulationDetector Simulation

�� Full simulation will be in place for the DCR final Full simulation will be in place for the DCR final resultsresults

�� VXD, TPC and DREAM implemented in the VXD, TPC and DREAM implemented in the simuationsimuation

�� Hits using G3, G4 or Fluka (depends on the Hits using G3, G4 or Fluka (depends on the study)study)

�� SDigits + Digits + Pattern RecognitionSDigits + Digits + Pattern Recognition

�� Full Parallel Kalman Filter for track Full Parallel Kalman Filter for track reconstruction (includes kinks and V0)reconstruction (includes kinks and V0)

�� PID (no muons)PID (no muons)


Detector Simulation (2)Detector Simulation (2)

�� Studies for Valencia have:Studies for Valencia have:

�� SDigits + Digits + Pattern Recognition or SDigits + Digits + Pattern Recognition or DREAMDREAM

�� Gaussian smearing for VXD and TPCGaussian smearing for VXD and TPC


Tracking StudiesTracking Studies


SiD/4th VXDSiD/4th VXD


VXD Event DisplayVXD Event Display


VXD SimulationVXD Simulation

�� Gaussian smearing of hits (5Gaussian smearing of hits (5µµm x 6 m x 6 µµm)m)

�� Barrel onlyBarrel only

�� Pattern recognition through Parallel Pattern recognition through Parallel Kalman FilterKalman Filter


4th Concept TPC4th Concept TPC


TPC SimulationTPC Simulation�� Gas: ArGas: Ar--CF4: 97CF4: 97--33�� AliceAlice’’s vessel scaled downs vessel scaled down

�� Inner Radius: 0.20 mInner Radius: 0.20 mOuter Radius: 1.50 m Outer Radius: 1.50 m Half Length : 1.50 m Half Length : 1.50 m

�� Active readout region: 25 cm Active readout region: 25 cm –– 137cm (145 cm for DCR)137cm (145 cm for DCR)�� All passive material included in geometryAll passive material included in geometry

�� CageCage�� EndcapsEndcaps�� Electronics and cablesElectronics and cables�� ServicesServices�� SupportSupport

�� ReadoutReadout�� Pad Inner:Pad Inner: Width 0.23 cmWidth 0.23 cm Length 0.42 cmLength 0.42 cm

Pad Outer1: Width 0.34 cmPad Outer1: Width 0.34 cm Length 0.57 cmLength 0.57 cmPad Outer2: Width 0.34 cmPad Outer2: Width 0.34 cm Length 0.85 cm Length 0.85 cm

�� 5 MuMega rows5 MuMega rows�� 512 pixels with 55 512 pixels with 55 µµm x 55 m x 55 µµmm�� Cluster statistics included (30/cm)Cluster statistics included (30/cm)�� εε = 90%/electron= 90%/electron


Material Budget (small radii)Material Budget (small radii)

r, cm0 2 4 6 8 10 12 14 16 18 20

/0.1

0X/

X

-410

-310

-210


Material Budget (overall)Material Budget (overall)

lego_yEntries 2000Mean 87.52RMS 60.91

r, cm0 20 40 60 80 100 120 140 160 180 200

/0.1

0X

/X

-410

-310

-210

lego_yEntries 2000Mean 87.52RMS 60.91

_y


Material Budget (Material Budget (ηη=0)=0)

�� Beam Pipe: 0.18% X/XBeam Pipe: 0.18% X/Xoo

�� VXD:VXD:�� Detector & support: 0.8% X/XDetector & support: 0.8% X/Xoo

�� Outer shield: 0.16% X/XOuter shield: 0.16% X/Xoo

�� TPC TPC �� Gas: 1.3% (along 1.2 m)Gas: 1.3% (along 1.2 m)

�� Vessel: Vessel: �� Inner wall + cage: 0.29% X/XInner wall + cage: 0.29% X/Xoo

�� Outer wall: 1.2% X/XOuter wall: 1.2% X/Xoo

�� Endcaps (wires, pads,electronics & services included): 54% X/XEndcaps (wires, pads,electronics & services included): 54% X/Xoo


Tracking Resolution (perfect readTracking Resolution (perfect read--out)out)

�� Full Kalman Filter with 150 measurementsFull Kalman Filter with 150 measurements

�� TPC alone: TPC alone: σσ(1/p(1/ptt) ) = = 1 x 101 x 10--44

�� TPC + VXD: TPC + VXD: σσ(1/p(1/ptt) ) = = 0.5 x 100.5 x 10--44

�� Beam constraint makes no further Beam constraint makes no further improvementsimprovements


TPC Pads Simulation (fast)TPC Pads Simulation (fast)

50 µm


Gas Related UncertaintiesGas Related Uncertainties

�� In ArIn Ar--CF4 with 4th Concept Geometry:CF4 with 4th Concept Geometry:�� σσ = 200= 200--250 250 µµm/electronm/electron�� Integrating over 1 cm corresponds to: Integrating over 1 cm corresponds to: σσ =36=36--45 45

µµmm

�� Useless to read out with an uncertainty much Useless to read out with an uncertainty much less than thatless than that

�� MuMegas in the 4th Concept correspond to MuMegas in the 4th Concept correspond to about 3about 3 µµmm in 1 cm (average 27 points/cm@55 in 1 cm (average 27 points/cm@55 µµmm //√√12)12)


TPC space resolution (pads TPC space resolution (pads readout)readout)

Z, cm-100 -50 0 50 100

, cm

yσ

0

0.001

0.002

0.003

0.004

0.005

0.006

0.007

0.008

0.009

0.01

Transversal resolution

Z, cm-100 -50 0 50 100

, cm

zσ

0

0.01

0.02

0.03

0.04

0.05

0.06

0.07

0.08

0.09

0.1

Z resolution

Includes 50Includes 50µµµµµµµµm m constant termconstant term

Plots are for 10 muonsPlots are for 10 muons0.50.5--200 200 GeVGeV and |and |tan(tan(θθθθθθθθ)|<0.9)|<0.9


Tracking Resolution (TPC pads readTracking Resolution (TPC pads read--out)out) / ndf = 128.4 / 632χ

Prob 2.267e-06

Constant 6.0± 180.6

Mean 0.001134± -0.001435

Sigma 0.00113± 0.04846

, mradφ ∆-0.6 -0.4 -0.2 0 0.2 0.4 0.60

20

40

60

80

100

120

140

160

180

200

/ ndf = 128.4 / 632χProb 2.267e-06


Mean 0.001134± -0.001435

Sigma 0.00113± 0.04846

PHI resolution

/ ndf = 72.5 / 462χProb 0.007603


Mean 0.0001971± -0.0003719

Sigma 0.000183± 0.008552

c-1GeV-2,102/ppσ-0.1 -0.05 0 0.05 0.10

50

100

150

200

250

/ ndf = 72.5 / 462χProb 0.007603


Mean 0.0001971± -0.0003719

Sigma 0.000183± 0.008552

Relative Pt resolution

Pt (GeV/c)0 50 100 150 200 250

Tra

ckin

g e

ffic

ien

cy

0

0.2

0.4

0.6

0.8

1

1.2

1.4

Fake tracks

Good tracks

Efficiency for good tracks

/ ndf = 112.4 / 1202χProb 0.6768

Constant 1.6± 54.9

Mean 0.001261± 0.002316

Sigma 0.00103± 0.05371

, mradθ ∆-0.8 -0.6 -0.4 -0.2 -0 0.2 0.4 0.6 0.80

10

20

30

40

50

60

70 / ndf = 112.4 / 1202χ

Prob 0.6768

Constant 1.6± 54.9

Mean 0.001261± 0.002316

Sigma 0.00103± 0.05371

LAMBDA resolution

/ ndf = 135.7 / 692χProb 2.962e-06Constant 3.19± 98.74 Mean 0.171± 1.125 Sigma 0.159± 7.243

mµz, -100 -50 0 50 1000

20

40

60

80

100

120

140

/ ndf = 135.7 / 692χProb 2.962e-06Constant 3.19± 98.74 Mean 0.171± 1.125 Sigma 0.159± 7.243

Z Impact Parameter Resolution / ndf = 130.1 / 1272χProb 0.4067


Mean 0.07825± -0.03955 Sigma 0.067± 3.265

mµd, -100 -80 -60 -40 -20 0 20 40 60 80 1000

10

20

30

40

50

60

/ ndf = 130.1 / 1272χProb 0.4067


Mean 0.07825± -0.03955 Sigma 0.067± 3.265

D Impact Parameter Resolution


Tracking Resolution (pads readTracking Resolution (pads read--out)out)

�� Using 10 Using 10 muonsmuons 0.50.5--200 200 GeVGeV and |and |tan(tan(θθθθθθθθ)|<0.9)|<0.9�� Average pads resolution: 40Average pads resolution: 40--70 70 µµm m ⊕⊕ 50 50 µµm m

(gas statistis (gas statistis ⊕⊕ pad resolution pad resolution ⊕⊕ const. term)const. term)�� Full Kalman Filter with 150 measurementsFull Kalman Filter with 150 measurements�� TPC alone: TPC alone: σσ(1/p(1/ptt) ) = = 2 x 102 x 10--44

�� TPC + VXD: TPC + VXD: �� σσ(1/p(1/ptt) ) = = 0.9 x 100.9 x 10--44

�� σσ(d) (d) = = 3.3 3.3 µµmm�� σσ(z) (z) = = 7.2 7.2 µµmm

�� Efficiency refers to tracks with at least 30 hits in Efficiency refers to tracks with at least 30 hits in the TPC (rthe TPC (rminmin ~ 40 cm or ~0.38 Gev)~ 40 cm or ~0.38 Gev)


TPC Total ResolutionTPC Total Resolution

Z, cm-100 -50 0 50 100

, c

mZ

σ

0

0.05

0.1

0.15

0.2

0.25

Z, cm-100 -50 0 50 100

_y, cm

σ

0.005

0.01

0.015

0.02

0.025– outer pads

- intermediate pads

- inner padsblack - µMega 1 layer(just a diffusion for one electron)

Includes 50Includes 50µµµµµµµµm m constant term (pds only)constant term (pds only)

Plots are for 10 muonsPlots are for 10 muons0.50.5--200 200 GeVGeV and |and |tan(tan(θθθθθθθθ)|<0.9)|<0.9


Tracking Resolution (TPC pads + MuMegas)Tracking Resolution (TPC pads + MuMegas) / ndf = 135.4 / 672χ

Prob 1.553e-06


Mean 0.0009508± 0.0009603

Sigma 0.00094± 0.04059

(mrad)-0.4 -0.3 -0.2 -0.1 -0 0.1 0.2 0.3 0.4

0

50

100

150

200

250

/ ndf = 135.4 / 672χProb 1.553e-06


Mean 0.0009508± 0.0009603

Sigma 0.00094± 0.04059

PHI resolution

Pt (GeV/c)0 50 100 150 200 250

Tra

ckin

g e

ffic

ien

cy

0

0.2

0.4

0.6

0.8

1

1.2

1.4

Fake tracks

Good tracks


/ ndf = 164 / 1502χProb 0.2057Constant 2.69± 89.93 Mean 0.0748± 0.0102 Sigma 0.057± 3.121

mµd, -100 -80 -60 -40 -20 0 20 40 60 80 1000

20

40

60

80

100

/ ndf = 164 / 1502χProb 0.2057Constant 2.69± 89.93 Mean 0.0748± 0.0102 Sigma 0.057± 3.121

D Impact Parameter Resolution / ndf = 152.1 / 902χProb 4.777e-05


Mean 0.1929± 0.1323 Sigma 0.171± 8.023

mµz -100 -50 0 50 100 1500

20

40

60

80

100

120

140

160

180

200

220 / ndf = 152.1 / 902χ

Prob 4.777e-05


Mean 0.1929± 0.1323 Sigma 0.171± 8.023

Z Impact Parameter Resolution

/ ndf = 81.59 / 382χProb 5.094e-05

Constant 10.3± 331

Mean 1.44e-04± -5.43e-06 Sigma 0.000131± 0.006226

, %2/pp

σ-0.06 -0.04 -0.02 -0 0.02 0.04

0

50

100

150

200

250

300

350

/ ndf = 81.59 / 382χProb 5.094e-05

Constant 10.3± 331

Mean 1.44e-04± -5.43e-06 Sigma 0.000131± 0.006226

Relative Pt resolution / ndf = 135.2 / 1222χProb 0.1949


Mean 0.00117± 0.00205 Sigma 0.0010± 0.0498

(mrad)-0.4 -0.2 0 0.2 0.4

0

10

20

30

40

50

60

70

/ ndf = 135.2 / 1222χProb 0.1949


Mean 0.00117± 0.00205 Sigma 0.0010± 0.0498

LAMBDA resolution


Tracking Resolution (pads + MuMegas Tracking Resolution (pads + MuMegas readread--out)out)

�� Using 10 Using 10 muons/evtmuons/evt 0.50.5--200 200 GeVGeV and |and |tan(tan(θθ)|<0.9)|<0.9�� Full Kalman Filter with 150 + 5 x Full Kalman Filter with 150 + 5 x ~90 90

measurementsmeasurements�� TPC + VXD: TPC + VXD:

�� σσ(1/p(1/ptt) ) = = 0.6 x 100.6 x 10--44

�� σσ(d) (d) = = 3.1 3.1 µµmm�� σσ(z) (z) = = 8.0 8.0 µµmm

�� Efficiency refers to tracks with at least 30 hits in Efficiency refers to tracks with at least 30 hits in the TPC (rthe TPC (rminmin ~ 40 cm or ~ 0.38 Gev)~ 40 cm or ~ 0.38 Gev)

�� Efficiency for low Pt tracks improves noticeblyEfficiency for low Pt tracks improves noticebly


Calorimetry StudiesCalorimetry Studies


DREAMDREAM


DREAM SimulationDREAM Simulation

� 1.5m Cu + scintillating fibers + Cerenkov fibers

� ~ 10 λ� Fully projective geometry

� ~1.5°aperture angle� Azimuth coverage down to 3.4°

� Barrel: 13924 cells (236 slices containing 59 cells)

� Endcaps: 3164 cells arranged in 27 rings


Bottom view of single cell

Bottom cell size: ~2 cm

Top cellsize: ~ 4 cm

Prospective view of clipped cell

Cell length: 150 cm (but DoDhas 100cm)

Number of fibers inside each cell: 1980equally subdivided between Scintillating and CerenkovFiber stepping ~2 mm

DREAM CellsDREAM Cells


Dream Resolution PlotsDream Resolution Plots

Histos pions at 40 GeV in Cu

DREAM Signal (GeV)0 20 40 60 80 100 120

Nu

mb

er o

f ev

ents

per

bin

0

50

100

150

200

250

300

350

400

Energy read from Scint fibers (GeV) Energy_sEntries 6001

Mean 24.09

RMS 28.44

Energy read from Scint fibers (GeV)

DREAM Signal (GeV)0 5 10 15 20 25 30 35 40 45

Nu

mb

er o

f ev

ents

per

bin

0

20

40

60

80

100

120

140

160

180

200

220

Energy read from Cer fibers (GeV) Energy_cEntries 2830

Mean 25.3

RMS 10.29

Energy read from Cer fibers (GeV)

Reconstructed Energy (GeV)0 10 20 30 40 50 60 70

Nu

mb

er o

f ev

ents

per

bin

0

100

200

300

400

500

600

Reconstructed Energy Energy_tEntries 6322

Mean 15.62

RMS 19.17

Reconstructed Energy

40 GeV ππππ-

Histos electrons at 40 GeV in Cu

DREAM Signal (GeV)0 10 20 30 40 50 60

Nu

mb

er o

f ev

ents

per

bin

0

100

200

300

400

500

600

700

800

900

1000

Energy read from Scint fibers (GeV) Energy_sEntries 6139

Mean 39.21

RMS 6.876

Energy read from Scint fibers (GeV)

DREAM Signal (GeV)0 10 20 30 40 50

Nu

mb

er o

f ev

ents

per

bin

0

200

400

600

800

1000

1200

Energy read from Cer fibers (GeV) Energy_cEntries 6017

Mean 39.77

RMS 3.296

Energy read from Cer fibers (GeV)

Reconstructed Energy (GeV)0 10 20 30 40 50

Nu

mb

er o

f ev

ents

per

bin

0

200

400

600

800

1000

1200

1400

Reconstructed Energy Energy_tEntries 6185

Mean 38.78

RMS 6.867

Reconstructed Energy

40 GeV e-


Isolated Clusters


Calibration AlgorithmCalibration Algorithm

�� ηηss*S(*S(ηηcc--1) 1) -- ηηcc*C(*C(ηηss--1)1)E = E = ------------------------------------------------------------------------------------------

ηηcc -- ηηss


Reconstructed vs Beam EnergyReconstructed vs Beam Energy

Total Energy

Pattern Recognition

ηηcc & & ηηssIndependent Independent on Energyon Energy


Resolution for hadronsResolution for hadrons

Beam Energy (GeV)0 20 40 60 80 100 120 140 160 180 200

E⁄σ

0.02

0.04

0.06

0.08

0.1

0.12 / ndf 2χ 1.351e-05 / 4

p0 0.01041± 0.3545 p1 0.001704± 0.001335

/ ndf 2χ 1.351e-05 / 4p0 0.01041± 0.3545 p1 0.001704± 0.001335

/ ndf 2χ 1.435e-05 / 4p0 0.01072± 0.3803 p1 0.001756± 0.0002627

/ ndf 2χ 1.435e-05 / 4p0 0.01072± 0.3803 p1 0.001756± 0.0002627

Pions data

All DREAM energy

Single rec part energy

Fit All DREAM energy

Fit Single rec part energy

Pion Resolution

Low statistics

Total Energy

Pattern Recognition


PID from DREAMPID from DREAM

�� 40 GeV particles40 GeV particles

-1 -0.5 0 0.5 10

200

400

600

800

1000

1200

1400

(S-C)/(S+C)

PID

e

π

µ

(S-C)/(S+C)

Cer Energy (GeV)0 5 10 15 20 25 30 35 40 45 50

Sci

nt

En

erg

y (G

eV)

0

10

20

30

40

50

60

70

80

90

Cer Energy vs Scint Energy

C vs Se

πµ

Cer Energy vs Scint Energy


Physics StudiesPhysics Studies


ee++ee-- --> t> ttt --> 6 jets > 6 jets


ee++ee-- --> t> ttt --> 6 jets (pads only)> 6 jets (pads only)

P, Gev0 10 20 30 40 50 60 70 80 90 100

c-1

GeV

-2 1

02

Pt/

Pt

∆

-4

-2

0

2

4

hptvspEntries 36848Mean x 5.371Mean y 0.01797RMS x 6.92RMS y 0.2193

hptvspEntries 36848Mean x 5.371Mean y 0.01797RMS x 6.92RMS y 0.2193

Relative Pt resolution with P hgthEntries 37030

Mean -0.000662

RMS 0.4658

, radθ-1.5 -1 -0.5 0 0.5 1 1.5

∈

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

hgthEntries 37030

Mean -0.000662

RMS 0.4658


hgphEntries 37030

Mean -0.003838

RMS 0.9059

, radφ-1.5 -1 -0.5 0 0.5 1 1.5

∈

0.76

0.78

0.8

0.82

0.84

0.86

0.88

0.9

0.92

hgphEntries 37030

Mean -0.003838

RMS 0.9059


himdEntries 37094Mean -0.04783RMS 11.43

/ ndf 2χ 3256 / 1788Prob 0Constant 0.69± 83.98 Mean 0.04207± -0.04255 Sigma 0.044± 7.442

mµd, -100 -80 -60 -40 -20 0 20 40 60 80 1000

20

40

60

80

100

120



D Impact Parameter Resolution himzEntries 37094Mean 0.3654RMS 14.18

/ ndf 2χ 1972 / 806Prob 0Constant 4.7± 602.9 Mean 0.0603± 0.3597 Sigma 0.06± 10.96

mµz -100 -50 0 50 1000

100

200

300

400

500

600

700

himzEntries 37094Mean 0.3654RMS 14.18



hptvsp_pxEntries 36848Mean 5.379RMS 6.979

P, Gev0 20 40 60 80 100

1

10

210

310

410

hptvsp_pxEntries 36848Mean 5.379RMS 6.979

Momentum distribution


ee++ee-- --> t> ttt --> 6 jets (pads only)> 6 jets (pads only)

hpEntries 36848Mean 9.204e-05RMS 0.5825


(mrad)-6 -4 -2 0 2 4 6

0

100

200

300

400

500

600

700

/ ndf = 5156 / 5732χProb 0Constant 4.3± 418.1

Mean 0.00197± 0.00172 Sigma 0.0029± 0.3385

PHI resolution hlEntries 36848Mean 0.002867RMS 0.334


(mrad)-2 -1.5 -1 -0.5 0 0.5 1 1.5 2

0

50

100

150

200

250

300

/ ndf = 2751 / 7962χProb 0Constant 1.6± 197.4

Mean 0.001444± 0.003083 Sigma 0.002± 0.258

LAMBDA resolution

hptEntries 36848Mean 0.01515RMS 0.1069


, %2/pp

σ-0.4 -0.2 0 0.2 0.4

0

200

400

600

800

1000

/ ndf = 8443 / 7792χProb 0


Mean 0.000294± 0.001981 Sigma 0.00051± 0.04721

Relative Pt resolution / ndf = 30.8 / 182χProb 0.03039


Mean 0.001291± -0.001109 Sigma 0.0015± 0.0178

(%)-0.5 -0.4 -0.3 -0.2 -0.1 -0 0.1 0.2 0.3 0.4 0.50

10

20

30

40

50

60

/ ndf = 30.8 / 182χProb 0.03039


Mean 0.001291± -0.001109 Sigma 0.0015± 0.0178

Relative Pt resolution (pt>4GeV/c) for electrons

Pt (GeV/c)0 20 40 60 80 100

Tra

ckin

g e

ffic

ien

cy

0

0.2

0.4

0.6

0.8

1

1.2

1.4

Fake tracks

Good tracks



ee++ee-- --> t> ttt --> 6 jets (pads + > 6 jets (pads + µµMegas)Megas)

hptEntries 5456Mean -0.003354RMS 0.0923


, %2/pp

σ-0.3 -0.2 -0.1 -0 0.1 0.2 0.3 0.40

20

40

60

80

100

120

140

160

180

hptEntries 5456Mean -0.003354RMS 0.0923


Relative Pt resolution himzEntries 5488Mean 0.5651RMS 32.58

/ ndf 2χ 825 / 615Prob 1.333e-08Constant 1.6± 74.4 Mean 0.1752± 0.2056 Sigma 0.16± 11.42

mµz -200 -150 -100 -50 0 50 100 150 2000

20

40

60

80

100

himzEntries 5488Mean 0.5651RMS 32.58

/ ndf 2χ 825 / 615Prob 1.333e-08Constant 1.6± 74.4 Mean 0.1752± 0.2056 Sigma 0.16± 11.42



/ ndf 2χ 837.3 / 550Prob 3.876e-15Constant 0.93± 39.32 Mean 0.1286± -0.1366 Sigma 0.14± 8.08

mµd, -100 -80 -60 -40 -20 0 20 40 60 80 1000

10

20

30

40

50

60

70


/ ndf 2χ 837.3 / 550Prob 3.876e-15Constant 0.93± 39.32 Mean 0.1286± -0.1366 Sigma 0.14± 8.08

D Impact Parameter Resolution

hgEntries 5488Mean 37.58RMS 21.63

Pt (GeV/c)0 10 20 30 40 50 60 70 80

Tra

ckin

g e

ffic

ien

cy

0

0.2

0.4

0.6

0.8

1

1.2

1.4

hgEntries 5488Mean 37.58RMS 21.63

Fake tracks

Good tracks

Efficiency for good tracks hlEntries 5456Mean 0.01283RMS 0.3699

/ ndf 2χ 786.5 / 572Prob 2.43e-09Constant 0.61± 26.48 Mean 0.00396± 0.01389 Sigma 0.0044± 0.2551

(mrad)-2 -1.5 -1 -0.5 0 0.5 1 1.5 2

0

10

20

30

40

50

hlEntries 5456Mean 0.01283RMS 0.3699

/ ndf 2χ 786.5 / 572Prob 2.43e-09Constant 0.61± 26.48 Mean 0.00396± 0.01389 Sigma 0.0044± 0.2551

LAMBDA resolution

hpEntries 5456Mean -0.01227RMS 0.6865

/ ndf 2χ 963.9 / 397Prob 0Constant 1.48± 55.74 Mean 0.00548± 0.00096 Sigma 0.0075± 0.3503

(mrad)-6 -4 -2 0 2 4 60

20

40

60

80

100

hpEntries 5456Mean -0.01227RMS 0.6865

/ ndf 2χ 963.9 / 397Prob 0Constant 1.48± 55.74 Mean 0.00548± 0.00096 Sigma 0.0075± 0.3503

PHI resolution


ee++ee-- --> t> ttt --> 6 jets > 6 jets Pads only vs Pads + Pads only vs Pads + µµMegasMegas

�� Tracking efficiency: 85% Tracking efficiency: 85% --> 90%> 90%

�� Momentum & space resolution barely Momentum & space resolution barely affected affected

�� TPC + VXD resolution: TPC + VXD resolution: �� σσ(1/p(1/ptt) Totally dominated by MS) Totally dominated by MS

�� σσ(d) (d) = = 8 8 µµmm

�� σσ(z) (z) = = 11.0 11.0 µµmm


ee++ee-- --> Z> ZooHHoo --> > µµ++µµ--XX


ee++ee-- --> Z> ZooHHoo --> > µµ++µµ--XX

�� Pads only vs Pads+MuMegasPads only vs Pads+MuMegas

�� Simple analysisSimple analysis

�� Perfect muonPerfect muon--ID (no MUD at present)ID (no MUD at present)

�� Cut |P| > 20 GeVCut |P| > 20 GeV

�� Loose DCA cuts: Loose DCA cuts: �� ηη < 50 < 50 µµm m

�� ξξ < 40 < 40 µµmm

�� Requires no kink in track reconstructionRequires no kink in track reconstruction

�� Multiple entries per eventMultiple entries per event


Mass PlotsMass Plots

Pads Only Pads + µµµµMegas


Recoil Mass (500 fb)Recoil Mass (500 fb)

VXD+

150 pad rows+

5 µµµµMegas rows

Signal+ZZ->µ+µ−Xbackground


ee++ee-- --> Z> ZooHHoo --> l> l++ll-- bbbb

�� Very preliminary Very preliminary resultsresults

�� No Jet finder No Jet finder �� Only pattern Only pattern

recognition in the recognition in the DREAMDREAM

EnergyResJetsEntries 233Mean -0.03722RMS 0.2492

-1 -0.8 -0.6 -0.4 -0.2 -0 0.2 0.4 0.6 0.8 10

5

10

15

20

25

30

35

EnergyResJetsEntries 233Mean -0.03722RMS 0.2492

Jets Energy Resolution

σ(Ejet)/Ejet


ConclusionsConclusions�� 4th Concept baseline detector implemented in 4th Concept baseline detector implemented in ILCrootILCroot

�� Full simulation almost in place for DCR (about another month)Full simulation almost in place for DCR (about another month)

�� Performance is good:Performance is good:

CalorimetryCalorimetry: : σσEE/E = 36%//E = 36%/√√EE

Tracking: Tracking:

σσ(1/P(1/Ptt) = 0.6 x 10) = 0.6 x 10--44

σσ(d) (d) = = 3 3 µµm (8 m (8 µµm for ttm for tt-->6jets)>6jets)

σσ(z) (z) = = 8 8 µµm (11 m (11 µµm for ttm for tt-->6jets)>6jets)

�� Event production (generation + reconstruction) in progress Event production (generation + reconstruction) in progress

�� Very slow with Very slow with FlukaFluka: : ~~11--3 hr/3 hr/evtevt

�� Parametric implementation of the codeParametric implementation of the code

�� Detector optimization will start next yearDetector optimization will start next year

�� EMCAL and EMCAL and MuonMuon Spectrometer simulation delayedSpectrometer simulation delayed


Backup slidesBackup slides


Present Status: VXD+TPC+DREAMPresent Status: VXD+TPC+DREAM

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Dream Performance (pions)Dream Performance (pions)

Energy3Entries 2410Mean 69.56RMS 5.413

/ ndf 2χ 42.93 / 59Mean 0.07± 70.21 Constant1 3.7± 140.6 Sigma1 0.057± 3.171 Constant2 0.297± 1.703 Sigma2 889462.6± -1415

0 10 20 30 40 50 60 70 80 900

20

40

60

80

100

120

140 Energy3Entries 2410Mean 69.56RMS 5.413

/ ndf 2χ 42.93 / 59Mean 0.07± 70.21 Constant1 3.7± 140.6 Sigma1 0.057± 3.171 Constant2 0.297± 1.703 Sigma2 889462.6± -1415

Reconstructed energy for pions at 70 GeV (Hadr algorithm 2)


MUD PerformanceMUD Performance

�� TPC for pattern TPC for pattern recognition + seeds recognition + seeds findingfinding

�� Kalman filter for trach Kalman filter for trach fitfit

�� Compare momentum Compare momentum reconstructed in the reconstructed in the MUD to that generated MUD to that generated at the originat the originFrom LCWS06


Results from DREAM simulation Results from DREAM simulation (V. Di Benedetto)(V. Di Benedetto)

�� Scintillation and Cerenkov processes well Scintillation and Cerenkov processes well simulatedsimulated

�� Easily switch from Cu to W (however, need Easily switch from Cu to W (however, need to change calibration values of to change calibration values of ηηSS and and ηηCC))

�� Pattern recognition in place (nearby cells).Pattern recognition in place (nearby cells).�� Hadronic showers appear to reproduce the Hadronic showers appear to reproduce the

compensation effect seen in the test module compensation effect seen in the test module (Fluka)(Fluka)

�� PiD (e/PiD (e/ππ//µµ) results are very promising) results are very promising


Fluka vs G3/G4Fluka vs G3/G4

Fluka

Geant3

Geant4

π - at 50 GeV in Pb Sphere of 500 cm Radius





LCIO vs MONARCLCIO vs MONARC

MC Generation ⇒ Energy Deposits in Detector

Digitization ⇒ Tracker Hits

Track Finding ⇒ Tracks

Track Fitting ⇒ Track Parameters

MC Generation ⇒ Energy Deposits in Detector

SDigitization ⇒ Detector response from single particle

Digitization ⇒ Detector response combined

Pattern Recognition ⇒ Recpoints

Track Finding ⇒ Tracks

Track Fitting ⇒ Track Parameters



Present Status: VXD+TPC+DREAMPresent Status: VXD+TPC+DREAM

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Documents

4th Concept Detector Performance · 2018. 11. 5. · Pad Outer2: Width 0.34 cm Length 0.85 cm 5 MuMega rows 512 pixels with 55 µm x 55 µm Cluster statistics included (30/cm) ε=