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The idea behind de-ghosting the ACD focuses on the correspondents between these two channels. For in-time events where the PHA analysis measures more than 0.45 MIPs, the trigger veto should have ~always fired. However, for out-of-time events, the PHA can still be > 0.45 MIPs, but the trigger will have fired and reset. Thus, we can identify some ghost hits as having more than 0.45 MIPs but no trigger veto.
Basic Numbers
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Pure Ghost Sample
Data Set: Periodic GR-v19r4p1gr07
Pre-Filters: '(GltGemSummary&32) && CalEnergyRaw>5'
PMTA | VETO | !VETO | NUMBER |
|---|---|---|---|
HIT | 22.36% | 77.64% | 171597 |
!HIT | 0.005% | 99.995% | 22687246 |
| PMTB | !PMTB |
|---|---|---|
PMTA | 84.06% | 7.72% |
!PMTA | 8.22% |
|
TotalEnergy vs. De-Ghosted TotalEnergy | TotalEnergy vs. De-ghosted TotalEnergy (Zoom) |
|---|---|
| |
No Ghost BKG MC
PMTA | VETO | !VETO | NUMBER |
|---|---|---|---|
HIT | 99.99% | 0.01% | 140773 |
!HIT | 3.48% | 96.52% | 188892 |
(n=24) | PMTB | !PMTB |
|---|---|---|
PMTA | 0% | 58.3333% |
!PMTA | 41.6667% |
|
TotalEnergy vs. De-Ghosted TotalEnergy | TotalEnergy vs. De-ghosted TotalEnergy (Zoom) |
|---|---|
|
|
AG with Ghosts
v19r4p1gr13
| VETO | !VETO | NUMBER |
|---|---|---|---|
HIT | 93.5022% | 6.49776% | 80520 |
!HIT | 2.79289% | 97.2071% | 157686 |
| PMTB | !PMTB | NUMBER |
|---|---|---|---|
PMTA | 97.7333% | 1.09558% | |
!PMTA | 1.17114% |
|
with FswGamState == 0
PmtA | VETO | !VETO | NUMBER |
|---|---|---|---|
HIT | 96.25% | 3.75003% | 45173 |
!HIT | 3.12244% | 96.8776% | 107384 |
| PMTB | !PMTB |
|---|---|---|
PMTA | 98.3021% | 0.87822% |
!PMTA | 0.819672% |
|
BKG with Ghosts
v19r4p1gr13
FswGamState == 0
PmtA | VETO | !VETO | NUMBER |
|---|---|---|---|
HIT | 85.2026% | 14.7974% | 87157 |
!HIT | 2.53573% | 97.4643% | 126512 |
| PMTB | !PMTB |
|---|---|---|
PMTA | 97.6958% | 1.03345% |
!PMTA | 1.27076% |
|
