ecal energy resolu0on updates ! 0 2 1 · 6/1/2017 · !0! ⨁!1⨁!2! ecal energy resolu0on...
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!"!
= !0!⨁!1⨁
!2!
ECALEnergyResolu0onUpdates
PDG:34.8.1
u Checktheenergyresolu0onfor1GeVelectrontoseethedependenceofangle,Al,andfiled.
u UsethesameenergyfiGngpointsfromRakitha’sresults(PcDR)tocomparetheenergyresolu0ongotfromGEMCwiththatgotfromRemollforthePVDISconfigura0on.
u Whyp2issolarge?
1. 7-moduleconfigura0on:basedonthePVDISconfigura0on
a)preshower:onlykeep2-cmscin0llator,andremovethe1.12-cmlead(inordertotestlowmomentum(100MeV/cand200MeV/c)e+,andπ+ showerbehaviorwiththeSOLIDshashalikdesign )b)shower:194layersoflead(0.05cm),scin0llator(0.15cm)andMylar(0.024cm)alterna0onconfigura0on.c)support:Al(2cm)2.1748-moduleconfigura0on:thesameas7-modulestructure3.PVDISconfigura0on
Simula0onConfigura0ons
AllresultsbelongstotheECALstandalonesimula0on
1GeVe-EnergyResolu0onDependenceStudy
1GeVe- σ µ MeV σE/E(σ/µ)%
Nofield
7modulesθ= 0ο 9.343±0.022 222.662±0.029 4.20±0.010
1748modulesθ= 0ο 9.536±0.068 239.263±0.096 3.98±0.028
1748modulesθ= 25ο 9.581±0.072 241.083±0.097 3.97±0.030
1748modulesθ= 25ο noAl
9.769±0.074 243.921±0.098 4.00±0.030
1748modulesθ= 35ο noAl
9.804±0.072 242.641±0.099 4.04±0.030
Field
1748modulesθ= 25ο 9.706±0.071 240.944±0.098 4.03±0.029
1748modulesθ= 25ο noAl
9.640±0.071 244.35±0.097 3.95±0.029
1748modulesθ= 25ο
prelead(PVDIS)14.721±0.11 219.647±0.153 6.70±0.05
1748modulesθ= 25ο
prelead,(PVDISnoAl)14.829±0.15
237.115±0.150 6.25±0.05
htotEdep_ecEntries 10000Mean 219.4RMS 15.29Underflow 0Overflow 0
/ ndf 2χ 138.7 / 59Prob 08− 2.276eConstant 6.7± 534.8 Mean 0.2± 219.6 Sigma 0.11± 14.72
totEdep_scin(MeV)0 200 400 600 800 10000
100
200
300
400
500
htotEdep_ecEntries 10000Mean 219.4RMS 15.29Underflow 0Overflow 0
/ ndf 2χ 138.7 / 59Prob 08− 2.276eConstant 6.7± 534.8 Mean 0.2± 219.6 Sigma 0.11± 14.72
ec
htotEdep_ec_leadEntries 10000Mean 557.1RMS 56.88Underflow 0Overflow 0
totEdep_lead(MeV)0 200 400 600 800 10000
20
40
60
80
100
120
140
160 htotEdep_ec_leadEntries 10000Mean 557.1RMS 56.88Underflow 0Overflow 0
ec
htotEdep_ec_preshowerEntries 10000Mean 29.51RMS 15.43Underflow 0Overflow 0
totEdep_preshower(MeV)0 200 400 600 800 10000
100
200
300
400
500
htotEdep_ec_preshowerEntries 10000Mean 29.51RMS 15.43Underflow 0Overflow 0
ec
htotEdep_ec_AlEntries 10000Mean 66.31RMS 30.85Underflow 0Overflow 0
totEdep_Al(MeV)0 200 400 600 800 10000
50
100
150
200
250htotEdep_ec_Al
Entries 10000Mean 66.31RMS 30.85Underflow 0Overflow 0
ec
htotEdep_ec_TylarEntries 10000Mean 44.37RMS 5.674Underflow 0Overflow 0
totEdep_Tylar(MeV)0 10 20 30 40 50 60 70 80 90 1000
20
40
60
80
100
120
140
htotEdep_ec_TylarEntries 10000Mean 44.37RMS 5.674Underflow 0Overflow 0
ec
htotEdep_ec_preleadEntries 10000Mean 102.4RMS 47.93Underflow 0Overflow 0
totEdep_prelead(MeV)0 200 400 600 800 10000
20
40
60
80
100
120
140
160
180htotEdep_ec_prelead
Entries 10000Mean 102.4RMS 47.93Underflow 0Overflow 0
ec
htotEdep_ec_scinleadEntries 10000Mean 747RMS 76.72Underflow 0Overflow 0
totEdep_scinlead(MeV)0 200 400 600 800 10000
20
40
60
80
100
120
htotEdep_ec_scinleadEntries 10000Mean 747RMS 76.72Underflow 0Overflow 0
ec
htotEdep_ec_totalEntries 10000Mean 989.6RMS 14.75Underflow 0Overflow 0
totEdep_total(MeV)0 200 400 600 800 10000
200
400
600
800
1000
1200
1400
1600 htotEdep_ec_totalEntries 10000Mean 989.6RMS 14.75Underflow 0Overflow 0
ec
1GeVe-PVDISconfigura0onshower scin shower lead
preshower scin
preshower leadMylar
Al
Shower scin + lead total
htotEdep_ecEntries 10000Mean 240.9RMS 9.906Underflow 0Overflow 0
/ ndf 2χ 31.81 / 42Prob 0.8733Constant 10.1± 819.9 Mean 0.1± 240.9 Sigma 0.071± 9.706
totEdep_scin(MeV)0 200 400 600 800 10000
100
200
300
400
500
600
700
800htotEdep_ec
Entries 10000Mean 240.9RMS 9.906Underflow 0Overflow 0
/ ndf 2χ 31.81 / 42Prob 0.8733Constant 10.1± 819.9 Mean 0.1± 240.9 Sigma 0.071± 9.706
ec
htotEdep_ec_leadEntries 10000Mean 679RMS 17.29Underflow 0Overflow 0
totEdep_lead(MeV)0 200 400 600 800 10000
100
200
300
400
500
600htotEdep_ec_lead
Entries 10000Mean 679RMS 17.29Underflow 0Overflow 0
ec
htotEdep_ec_preshowerEntries 10000Mean 4.929RMS 1.433Underflow 0Overflow 0
totEdep_preshower(MeV)0 10 20 30 40 50 60 70 80 90 1000
200
400
600
800
1000
1200htotEdep_ec_preshower
Entries 10000Mean 4.929RMS 1.433Underflow 0Overflow 0
ec
htotEdep_ec_AlEntries 10000Mean 13.07RMS 5.309Underflow 0Overflow 1
totEdep_Al(MeV)0 10 20 30 40 50 60 70 80 90 1000
50
100
150
200
250
300
350
400htotEdep_ec_Al
Entries 10000Mean 13.07RMS 5.309Underflow 0Overflow 1
ec
htotEdep_ec_TylarEntries 10000Mean 54.71RMS 3.575Underflow 0Overflow 0
totEdep_Tylar(MeV)0 10 20 30 40 50 60 70 80 90 1000
50
100
150
200
250 htotEdep_ec_TylarEntries 10000Mean 54.71RMS 3.575Underflow 0Overflow 0
ec
htotEdep_ec_preleadEntries 10000Mean 0RMS 0Underflow 0Overflow 0
totEdep_prelead(MeV)0 200 400 600 800 10000
2000
4000
6000
8000
10000 htotEdep_ec_preleadEntries 10000Mean 0RMS 0Underflow 0Overflow 0
ec
htotEdep_ec_scinleadEntries 10000Mean 915RMS 16.85Underflow 0Overflow 0
totEdep_scinlead(MeV)0 200 400 600 800 10000
100
200
300
400
500
600
700
800
900 htotEdep_ec_scinleadEntries 10000Mean 915RMS 16.85Underflow 0Overflow 0
ec
htotEdep_ec_totalEntries 10000Mean 987.7RMS 15.48Underflow 0Overflow 0
totEdep_total(MeV)0 200 400 600 800 10000
200
400
600
800
1000
1200
1400htotEdep_ec_total
Entries 10000Mean 987.7RMS 15.48Underflow 0Overflow 0
ec
shower scin shower lead
preshower scin
preshower leadMylar
Al
shower scin + lead total
1GeVe-PVDISconfigura0onwithoutPre-lead
htotEdep_ecEntries 99995Mean 20.03RMS 2.987Underflow 0Overflow 0
/ ndf 2χ 534.9 / 86Prob 0Constant 21.8± 5414 Mean 0.01± 20.02 Sigma 0.007± 2.932
totEdep_scin(MeV)0 20 40 60 80 100 120 140 160 180 2000
1000
2000
3000
4000
5000
htotEdep_ecEntries 99995Mean 20.03RMS 2.987Underflow 0Overflow 0
/ ndf 2χ 534.9 / 86Prob 0Constant 21.8± 5414 Mean 0.01± 20.02 Sigma 0.007± 2.932
echtotEdep_ec_lead
Entries 99995Mean 58.59RMS 4.914Underflow 0Overflow 0
totEdep_lead(MeV)0 20 40 60 80 100 120 140 160 180 2000
500
1000
1500
2000
2500
3000
3500
htotEdep_ec_leadEntries 99995Mean 58.59RMS 4.914Underflow 0Overflow 0
ec
htotEdep_ec_preshowerEntries 99995Mean 4.113RMS 0.9929Underflow 0Overflow 0
totEdep_preshower(MeV)0 10 20 30 40 50 60 70 80 90 1000
2000
4000
6000
8000
10000
12000
14000
16000
18000htotEdep_ec_preshower
Entries 99995Mean 4.113RMS 0.9929Underflow 0Overflow 0
echtotEdep_ec_Al
Entries 99995Mean 10RMS 3.243Underflow 0Overflow 0
totEdep_Al(MeV)0 10 20 30 40 50 60 70 80 90 1000
1000
2000
3000
4000
5000
6000
7000 htotEdep_ec_AlEntries 99995Mean 10RMS 3.243Underflow 0Overflow 0
ec
htotEdep_ec_TylarEntries 99995Mean 4.652RMS 1.049Underflow 0Overflow 0
totEdep_Tylar(MeV)0 10 20 30 40 50 60 70 80 90 1000
1000
2000
3000
4000
5000
6000
7000
8000
htotEdep_ec_TylarEntries 99995Mean 4.652RMS 1.049Underflow 0Overflow 0
echtotEdep_ec_scinlead
Entries 99995Mean 78.62RMS 5.226Underflow 0Overflow 0
totEdep_scinlead(MeV)0 20 40 60 80 100 120 140 160 180 2000
1000
2000
3000
4000
5000 htotEdep_ec_scinleadEntries 99995Mean 78.62RMS 5.226Underflow 0Overflow 0
ec
htotEdep_ec_totalEntries 99995Mean 97.38RMS 4.021Underflow 0Overflow 0
totEdep_total(MeV)0 50 100 150 200 2500
2000
4000
6000
8000
10000
12000
14000 htotEdep_ec_totalEntries 99995Mean 97.38RMS 4.021Underflow 0Overflow 0
ec
100 MeV/c, e+ 7modules configura0on(old)
shower scin shower lead
preshower scin Al
scin + lead
total
Mylar
depE/flux_pEntries 9999Mean 0.9743RMS 0.032Underflow 0Overflow 5365
totEdep/E0.75 0.8 0.85 0.9 0.95 1
events
0
200
400
600
800
1000
depE/flux_pEntries 9999Mean 0.9743RMS 0.032Underflow 0Overflow 5365
100MeV/ce+
100MeVe-
depE/flux_pEntries 9998Mean 0.9806RMS 0.02355Underflow 0Overflow 0
totEdep/E0.75 0.8 0.85 0.9 0.95 1
events
0
1000
2000
3000
4000
5000depE/flux_p
Entries 9998Mean 0.9806RMS 0.02355Underflow 0Overflow 0
100MeV/ce-
TotalEdepositfrac0on
depE/flux_pEntries 9998Mean 0.9789RMS 0.0296Underflow 0Overflow 2836
totEdep/E0.75 0.8 0.85 0.9 0.95 1
eve
nts
0
500
1000
1500
2000
2500 depE/flux_pEntries 9998Mean 0.9789RMS 0.0296Underflow 0Overflow 2836
100MeV/cγ
TotalEdepositfrac0on
depE/flux_pEntries 1000Mean 0.9661RMS 0.0182Underflow 0Overflow 0
totEdep/E0.75 0.8 0.85 0.9 0.95 1
events
0
20
40
60
80
100
120
140
160 depE/flux_pEntries 1000Mean 0.9661RMS 0.0182Underflow 0Overflow 01GeV/ce+
depE/flux_pEntries 100000Mean 0.9604RMS 0.01814Underflow 0Overflow 0
totEdep/E0.75 0.8 0.85 0.9 0.95 1
even
ts
0
2000
4000
6000
8000
10000
12000
14000depE/flux_p
Entries 100000Mean 0.9604RMS 0.01814Underflow 0Overflow 0
1GeV/ce-
TotalEdepositfrac0on
Fortheenergyovercoun0ngissue:Ø Nothappenforneitherlowandhighenergyelectron
Ø Happenforlowenergyposi0on(photon).
Toexplorethisproblem:ü Simulatelowenergy(100MeV)positrontohitonawholepieceof
lead(20X0),inordertoseparatethephysicsprocessissueandthestructureissue
TWwindow:100ns
1,10,and1000ns
Thesameconclusionas100nsTWwindow
PVDISEnergyResolu0onStudy
Nofielde-beam:1. θe=25o,30o,35oandφ=0οvertex=(0,0,10cm)
1. allangles:θe=[22o,35o],andφ= [-180ο,180ο] vertex=(0,0,10cm)vertex_spread=(0.21,20)
E (GeV)2 3 4 5 6 7
Edep/E
0.01
0.02
0.03
0.04
0.05
0.06 / ndf 2χ 8.161 / 6Prob 0.2265p0 0.001662± 0.05383 p1 14.87± 0 p2 0.005046± 0.04843
/ ndf 2χ 8.161 / 6Prob 0.2265p0 0.001662± 0.05383 p1 14.87± 0 p2 0.005046± 0.04843
/ ndf 2χ 9.395 / 6Prob 0.1525p0 0.0004199± 0.04788 p1 0.003318± 0 p2 0.001543± 0.04852
/ ndf 2χ 9.395 / 6Prob 0.1525p0 0.0004199± 0.04788 p1 0.003318± 0 p2 0.001543± 0.04852
/ ndf 2χ 19.5 / 6Prob 0.003399p0 0.0004957± 0.06066 p1 0.006597±08 −1.409e− p2 0.001927± 0.05778
/ ndf 2χ 19.5 / 6Prob 0.003399p0 0.0004957± 0.06066 p1 0.006597±08 −1.409e− p2 0.001927± 0.05778
/ ndf 2χ 8.727 / 6Prob 0.1895p0 0.0004843± 0.0584 p1 0.008495±10 − 9.704ep2 0.001835± 0.05744
/ ndf 2χ 8.727 / 6Prob 0.1895p0 0.0004843± 0.0584 p1 0.008495±10 − 9.704ep2 0.001835± 0.05744
° nofield [22,35]°nofield 25 °nofield 30°nofield 35
EC Shower calibrated energy / E_toal
Allangles
θ=25o
θ=30o θ=35o
!0!
!+ !1 ! + !2
!!
E (GeV)2 3 4 5 6 7
Edep
/E
0.01
0.02
0.03
0.04
0.05
0.06 / ndf 2χ 8.161 / 6Prob 0.2265p0 0.001662± 0.05383 p1 14.87± 0 p2 0.005046± 0.04843
/ ndf 2χ 8.161 / 6Prob 0.2265p0 0.001662± 0.05383 p1 14.87± 0 p2 0.005046± 0.04843
/ ndf 2χ 9.395 / 6Prob 0.1525p0 0.0004199± 0.04788 p1 0.003318± 0 p2 0.001543± 0.04852
/ ndf 2χ 9.395 / 6Prob 0.1525p0 0.0004199± 0.04788 p1 0.003318± 0 p2 0.001543± 0.04852
/ ndf 2χ 19.5 / 6Prob 0.003399p0 0.0004957± 0.06066 p1 0.006597±08 −1.409e− p2 0.001927± 0.05778
/ ndf 2χ 19.5 / 6Prob 0.003399p0 0.0004957± 0.06066 p1 0.006597±08 −1.409e− p2 0.001927± 0.05778
/ ndf 2χ 8.727 / 6Prob 0.1895p0 0.0004843± 0.0584 p1 0.008495±10 − 9.704ep2 0.001835± 0.05744
/ ndf 2χ 8.727 / 6Prob 0.1895p0 0.0004843± 0.0584 p1 0.008495±10 − 9.704ep2 0.001835± 0.05744
° nofield [22,35]°nofield 25 °nofield 30°nofield 35
EC Shower calibrated energy / E_toal
htotEdep_ecEntries 7769Mean 446.4RMS 53.31Underflow 0Overflow 0
/ ndf 2χ 371 / 121Prob 27− 3.48eConstant 8.6± 580.6 Mean 0.2± 454.7 Sigma 0.19± 20.35
totEdep(MeV)0 100 200 300 400 500 600 700 8000
100
200
300
400
500
600htotEdep_ec
Entries 7769Mean 446.4RMS 53.31Underflow 0Overflow 0
/ ndf 2χ 371 / 121Prob 27− 3.48eConstant 8.6± 580.6 Mean 0.2± 454.7 Sigma 0.19± 20.35
ec
htotEdep_ecEntries 7717Mean 445.1RMS 54.58Underflow 0Overflow 0
/ ndf 2χ 466 / 124Prob 41− 4.421eConstant 8.3± 556.9 Mean 0.3± 454.1 Sigma 0.19± 20.78
totEdep(MeV)100 200 300 400 500 600 700 8000
100
200
300
400
500
600 htotEdep_ecEntries 7717Mean 445.1RMS 54.58Underflow 0Overflow 0
/ ndf 2χ 466 / 124Prob 41− 4.421eConstant 8.3± 556.9 Mean 0.3± 454.1 Sigma 0.19± 20.78
ec
Allangleswithoutfield
Allangleswithfield
2GeVe-ECALenergydepositdistribu0on
σ/µ nofieldinfluence
WhyP2islargeforthesimula0onresult?Ø Inordertocheckthisissue,theexperimental
testresultisneeded.
Ø Fittheplotbyignoringthep2term.
E (GeV)2 3 4 5 6 7
Edep/E
0.01
0.02
0.03
0.04
0.05
0.06 / ndf 2χ 93.07 / 7Prob 17− 2.898ep0 05− 2.644e± 0.05896 p1 0.0009989±17 − 1.301e
/ ndf 2χ 93.07 / 7Prob 17− 2.898ep0 05− 2.644e± 0.05896 p1 0.0009989±17 − 1.301e
/ ndf 2χ 266.8 / 7
Prob 0p0 0.0001379± 0.05379 p1 0.0005699±17 − 1.301e
/ ndf 2χ 266.8 / 7
Prob 0p0 0.0001379± 0.05379 p1 0.0005699±17 − 1.301e
/ ndf 2χ 253.1 / 7Prob 0p0 0.0001661± 0.06734 p1 0.0007241±08 − 2.736e
/ ndf 2χ 253.1 / 7Prob 0p0 0.0001661± 0.06734 p1 0.0007241±08 − 2.736e
/ ndf 2χ 263.6 / 7Prob 0p0 0.0001625± 0.0652 p1 0.000684±15 − 5.197e
/ ndf 2χ 263.6 / 7Prob 0p0 0.0001625± 0.0652 p1 0.000684±15 − 5.197e
° nofield [22,35]°nofield 25 °nofield 30°nofield 35
EC Shower calibrated energy / E_toalAllangles
θ=25o
θ=30o θ=35o
!0!
!+ !1 !
Theinfluenceofsupportstructure(2cmAl)onECALenergyresolu0onfromSOLID
GEMCsimula0on
2012.12.15
SOLIDECALStandAloneSimula0on
θe=[22o,35o]φ= [-180ο,180ο] vertex=(0,0,10cm)vertex_spread=(0.21,20)
E (GeV)2 3 4 5 6 7
Edep/E
0.02
0.025
0.03
0.035
0.04
0.045 / ndf 2χ 93.07 / 7
Prob 17− 2.898ep0 05− 2.644e± 0.05896 p1 0.0009989±17 − 1.301e
/ ndf 2χ 93.07 / 7Prob 17− 2.898ep0 05− 2.644e± 0.05896 p1 0.0009989±17 − 1.301e
/ ndf 2χ 65.18 / 7Prob 11− 1.385ep0 0.0001889± 0.05865 p1 0.001014±17 − 1.301e
/ ndf 2χ 65.18 / 7Prob 11− 1.385ep0 0.0001889± 0.05865 p1 0.001014±17 − 1.301e
° nofield [22,35]
no Al°nofield [22,35]
EC Shower calibrated energy / E_toal
!0!
!+ !1 !
E (GeV)2 3 4 5 6 7
Edep/E
0.02
0.025
0.03
0.035
0.04
0.045 / ndf 2χ 8.161 / 6
Prob 0.2265p0 0.001662± 0.05383 p1 14.87± 0 p2 0.005046± 0.04843
/ ndf 2χ 8.161 / 6Prob 0.2265p0 0.001662± 0.05383 p1 14.87± 0 p2 0.005046± 0.04843
/ ndf 2χ 8.485 / 6Prob 0.2047p0 0.0009698± 0.05513 p1 8.94± 0 p2 0.003747± 0.03918
/ ndf 2χ 8.485 / 6Prob 0.2047p0 0.0009698± 0.05513 p1 8.94± 0 p2 0.003747± 0.03918
° nofield [22,35]
no Al°nofield [22,35]
EC Shower calibrated energy / E_toal
!0!
!+ !1 ! + !2
!!
Anycommentsandsugges0ons?
Summary
² ForSoLIDPVDISconfigura0on:theECALenergyresolu0onbecomeworsebyincreasingthepolarangleofelectronbeam.
² Thefullpolaranglecoverage[22o,35o]energyresolu0onfromGEMCsimula0onislargerthanthePcDRresults
² From1GeVelectronbeamσΕ/Εcomparison,thepreshowerleadinfluencetheECALenergyresolu0onratherthansupportstructureandfield.
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