KPRID = 10 --- Gatemaster 1 Autopass
Priority |
KPRID |
NAME |
Written to |
| 1 | 90 | GM 9: Laser | GK |
| 2 | 120 | GM12: Minimum Bias | GK |
| 3 | 130 | GM13: Random Gate | GK |
| 4 | 70 | GM 7:Etot 80% No Veto | GK |
| 5 | 140 | GM14: FCAL Cosmic Ray | GK |
| 6 | 80 | GM 8:Etot_lo Neutral | GK |
| 7 | 150 | GM15: High Min Bias | GP |
| 8 | 10 | GM 1: e+e- | GK |
| 9 | 40 | GM 4: Neutral PBG1 | GK |
| 10 | 100 | GM10: Silicon Strobe | GP |
| 11 | 30 | GM 3: Phi-Phi | GP |
| 12 | 20 | GM 2: PBAR-P | GP |
| 13 | 60 | GM 6: Pbarp Control | GP |
| 14 | 50 | GM 5: Neutral Etot | GK |
| 15 | 110 | GM11: All Trigs | GK |
| 16 | 13 | goldee | GK GOLD |
| 17 | 12 | goodee | GK |
| 18 | 11 | elec | GK |
| 19 | 31 | phiphi | GP |
| 20 | 48 | goldgg | GK GNA GOLD |
| 21 | 47 | goodgg | GK GNA |
| 22 | 42 | etainvm | GK GNA |
| 23 | 43 | piinvm | GK GNA |
| 24 | 44 | cmainvm | GK GNA |
| 25 | 45 | cmbinvm | GK GNA |
| 26 | 41 | invmass | GK |
| 27 | 52 | etaetot | GN GNA |
| 28 | 53 | pietot | GN GNA |
| 29 | 54 | cmaetot | GN GNA |
| 30 | 55 | cmbetot | GN GNA |
| 31 | 51 | etotsoft | GN |
| 32 | 170 | neutr | GN |
KPRID = 10 --- Gatemaster 1 AutopassGoto Top or PRUDE trigger priority table.
KPRID = 11 --- elecDescription:
e+e- events that are not tagged by kprid = 12 or
13 -- all invariant mass pairs <2.0GeV.
| Runs | PRUDE Prescale | Runs | PRUDE Prescale | |
| 688-1081 | 1 | 1082-1085 | 10 | |
| 1086-1097 | 1 | 1098-1135 | 2 | |
| 1136-1179 | 1 | 1180-1192 | 2 | |
| 1193-1198 | 1 | 1199-1208 | 2 | |
| 1209-1216 | 1 | 1217-1254 | 2 | |
| 1255-1275 | 1 | 1276-1290 | 2 | |
| 1291-1305 | 1 | 1306-2034 | 2 | |
| 2035-2191 | 1 | 2192-2224 | 2 | |
| 2225-2234 | 1 | 2235-2258 | 2 | |
| 2259-2375 | 1 | 2376-3077 | 2 | |
| 3078-3080 | 1 | 3081-3203 | 2 | |
| 3204-3209 | 1 | 3210-3283 | 2 | |
| 3284-3285 | 1 | 3286-3300 | 2 | |
| 3301-3305 | 1 | 3306-3334 | 2 | |
| 3335-3340 | 10 | 3341-3345 | 2 | |
| 3346 | 1 |
Goto Top or PRUDE trigger priority table.
KPRID = 12 --- goodeeDescription:
e+e- events which have an invariant mass >2.0GeV and below
the goldee (kprid = 13) invariant mass cut.
Essentially for all below transition running there were no events designated as goodee.
Goto Top or PRUDE trigger priority table.
KPRID = 13 --- goldeeDescription:
For above[below] transition, e+e- events where an
invariant mass >2.2[2.0]GeV was found. Below transition, this took precedence
over goodee (kprid = 12).
Goto Top or PRUDE trigger priority table.
KPRID = 20 --- Gatemaster 2 AutopassDescription:
The software Autopass trigger
for Gatemaster 2 which is commonly known as the pbar-p at 90deg hardware trigger.
Goto Top or PRUDE trigger priority table.
KPRID = 30 --- Gatemaster 3 AutopassDescription:
The software Autopass trigger
for Gatemaster 3 which is commonly known as the phi-phi hardware trigger.
| Runs 688-822 | Hardware Prescale 1 |
| Runs 823-835 | Hardware Prescale 10 |
| Runs 836-907 | Hardware Prescale 1 |
| Runs 908-2057 | Hardware Prescale 10 |
| Run 2058 | Hardware Prescale 40 |
| Runs 2059-2206 | Hardware Prescale 10 |
| Runs 2207-2272 | Hardware Prescale 30 |
| Runs 2273-3028 | Hardware Prescale 10 |
| Runs 3029-3294 | Hardware Prescale 1 |
Goto Top or PRUDE trigger priority table.
KPRID = 31 --- phiphiDescription:
Hardware phi-phi triggers are selected based upon
kinematics and opening angles as well as occupancy of hodoscopes and scintillating
fiber bundles.
Requirements:
Bits ON : 0000 0000 -- 007F 0000
Bits OFF: 0000 0000 -- 0000 0000
Gatemaster 3
Goto Top or PRUDE trigger priority table.
KPRID = 40 --- Gatemaster 4 AutopassDescription:
The software Autopass trigger
for Gatemaster 4 which is commonly known as the neutral PBG1 hardware trigger.
| Runs 547-583 | Autopass 1 |
| Runs 584-696 | Autopass 1000 |
| Run 697 | Autopass 1 |
| Run 698 | Autopass 1000 |
| Runs 699-706 | Autopass 1 |
| Runs 707-746 | Autopass 1000 |
| Run 747 | Autopass 1 |
| Runs 748-end | Autopass 1000 |
Goto Top or PRUDE trigger priority table.
KPRID = 41 --- invmassDescription:
Neutral events where there is an invariant mass >2.0GeV
but do not satisfy the calibration/gamma-gamma tagging: kprid = 42,
43,
44,
45,
47, or
48.
Goto Top or PRUDE trigger priority table.
KPRID = 42 --- etainvmDescription:
Found at least 1 exclusive eta, <6 CCAL clusters and an invariant mass pairing >2.0GeV.
Requirements:
Bits ON : 0440 0000 -- 0000 0000
Bits OFF: 0000 03E0 -- 0000 0000
Gatemaster 4 or 5
Goto Top or PRUDE trigger priority table.
KPRID = 43 --- piinvmDescription:
Found at least 1 exclusive pi0, <6 CCAL clusters and an invariant mass pairing >2.0GeV.
Requirements:
Bits ON : 0402 0000 -- 0000 0000
Bits OFF: 0000 03E0 -- 0000 0000
Gatemaster 4 or 5
Goto Top or PRUDE trigger priority table.
KPRID = 44 --- cmainvmDescription:
The 1st largest energy cluster could be split
[cluster mass >100MeV], there are <5 CCAL clusters and an invariant mass pairing >2.0GeV.
Requirements:
Bits ON : 0400 0400 -- 0000 0000
Bits OFF: 0000 03F0 -- 0000 0000
Gatemaster 4 or 5
Goto Top or PRUDE trigger priority table.
KPRID = 45 --- cmbinvmDescription:
The 2nd largest energy cluster could be split
[cluster mass >100MeV], there are <5 CCAL clusters and an invariant mass pairing >2.0GeV.
Requirements:
Bits ON : 0400 0800 -- 0000 0000
Bits OFF: 0000 03F0 -- 0000 0000
Gatemaster 4 or 5
Goto Top or PRUDE trigger priority table.
KPRID = 47 --- goodggDescription:
Neutral events where there is an invarinat mass >2.5GeV and below
the goldgg (kprid = 48) invariant mass cut.
Essentially for all below transition running there were no events designated as goodgg.
Goto Top or PRUDE trigger priority table.
KPRID = 48 --- goldggDescription:
For above[below] transition, neutral events where an
invariant mass >2.7[2.5]GeV was found. Below transition, this took precedence
over goodgg (kprid = 47). Prior to run 741 included cuts
on kinematics
Goto Top or PRUDE trigger priority table.
KPRID = 50 --- Gatemaster 5 AutopassDescription:
The software Autopass trigger
for Gatemaster 5 which is commonly known as the neutral total energy hardware trigger.
| Runs 688-696 | Autopass 1000 |
| Run 697 | Autopass 1 |
| Run 698 | Autopass 1000 |
| Runs 699-706 | Autopass 1 |
| Runs 707-746 | Autopass 1000 |
| Run 747 | Autopass 1 |
| Runs 748-end | Autopass 1000 |
Goto Top or PRUDE trigger priority table.
KPRID = 51 --- etotsoftDescription:
Neutral events where all invariant masses <2.0GeV and have
90% of the expected lab energy in the CCAL but do not satisfy the calibration
taging: KPRID = 52,
53,
54 or
55.
| Runs | PRUDE Prescale | Runs | PRUDE Prescale | |
| 688-822 | 1 | 823-832 | 10 | |
| 833-907 | 1 | 908-999 | 10 | |
| 1000-1081 | 1 | 1082-1085 | 10 | |
| 1086-1092 | 1 | 1093-1095 | 10 | |
| 1096-1097 | 1 | 1098-1135 | 2 | |
| 1136-1179 | 4 | 1180-1192 | 2 | |
| 1193-1198 | 4 | 1199-1208 | 2 | |
| 1209-1216 | 4 | 1217-1254 | 2 | |
| 1255-1275 | 4 | 1276-1290 | 2 | |
| 1291-1305 | 4 | 1306-2034 | 2 | |
| 2035-2191 | 4 | 2192-2224 | 2 | |
| 2225-2234 | 4 | 2235-2258 | 2 | |
| 2259-2375 | 4 | 2376-3077 | 2 | |
| 3078-3080 | 4 | 3081-3203 | 2 | |
| 3204-3209 | 4 | 3210-3283 | 2 | |
| 3284-3285 | 4 | 3286-3300 | 2 | |
| 3301-3305 | 4 | 3306-3334 | 2 | |
| 3335-3340 | 10 | 3341-3345 | 2 | |
| 3346 | 4 |
Goto Top or PRUDE trigger priority table.
KPRID = 52 --- etaetotDescription:
Found at least 1 exclusive eta, <6 CCAL clusters,
all invariant massess <2.0GeV and have 90% of the expected lab energy in the CCAL.
Requirements:
Bits ON : 0040 8000 -- 0000 0000
Bits OFF: 0000 03E0 -- 0000 0000
Gatemaster 4 or 5
Goto Top or PRUDE trigger priority table.
KPRID = 53 --- pietotDescription:
Found at least 1 exclusive pi0, <6 CCAL clusters,
all invariant massess <2.0GeV and have 90% of the expected lab energy in the CCAL.
Requirements:Bits ON :
0002 8000 -- 0000 0000
Bits OFF: 0000 03E0 -- 0000 0000
Goto Top or PRUDE trigger priority table.
KPRID = 54 --- cmaetotDescription:
The 1st largest energy cluster could be split
[cluster mass >100MeV], there are <5 CCAL clusters, all invariant massess <2.0GeV
and have 90% of the expected lab energy in the CCAL.
Requirements:
Bits ON : 0000 8400 -- 0000 0000
Bits OFF: 0000 03F0 -- 0000 0000
Gatemaster 4 or 5
Goto Top or PRUDE trigger priority table.
KPRID = 55 --- cmbetotDescription:
The 2nd largest energy cluster could be split
[cluster mass >100MeV], there are <5 CCAL clusters, all invariant massess <2.0GeV
and have 90% of the expected lab energy in the CCAL.
Requirements:
Bits ON : 0000 8800 -- 0000 0000
Bits OFF: 0000 03F0 -- 0000 0000
Gatemaster 4 or 5
Goto Top or PRUDE trigger priority table.
KPRID = 60 --- Gatemaster 6 AutopassDescription:
The software Autopass trigger
for Gatemaster 6 which is commonly known as the pbar-p control hardware trigger.
Goto Top or PRUDE trigger priority table.
KPRID = 70 --- Gatemaster 7 AutopassDescription:
The software Autopass trigger
for Gatemaster 7 which is commonly known as the total energy with no veto hardware trigger.
Goto Top or PRUDE trigger priority table.
KPRID = 80 --- Gatemaster 8 AutopassDescription:
The software Autopass trigger
for Gatemaster 8 which is commonly known as the neutral total energy with lower threshold hardware trigger.
Goto Top or PRUDE trigger priority table.
KPRID = 90 --- Gatemaster 9 AutopassDescription:
The software Autopass trigger
for Gatemaster 9 which is commonly known as the laser hardware trigger.
Goto Top or PRUDE trigger priority table.
KPRID = 100 --- Gatemaster 10 AutopassDescription:
The software Autopass trigger
for Gatemaster 10 which is commonly known as the silicon strobe hardware trigger.
Goto Top or PRUDE trigger priority table.
KPRID = 110 --- Gatemaster 11 AutopassDescription:
The software Autopass trigger
for Gatemaster 11 which is commonly known as the catch all hardware trigger.
This is a to catch all events where the other gatemaster information is not
recorded for some reason. The GM11 signal is the gate from the gatemaster
itself.
Goto Top or PRUDE trigger priority table.
KPRID = 120 --- Gatemaster 12 AutopassDescription:
The software Autopass trigger
for Gatemaster 12 which is commonly known as the minimum bias hardware trigger.
Goto Top or PRUDE trigger priority table.
KPRID = 130 --- Gatemaster 13 AutopassDescription:
The software Autopass trigger
for Gatemaster 13 which is commonly known as the random gate hardware trigger.
Goto Top or PRUDE trigger priority table.
KPRID = 140 --- Gatemaster 14 AutopassDescription:
The software Autopass trigger
for Gatemaster 14 which is commonly known as the FCAL cosmic ray muon hardware trigger.
Goto Top or PRUDE trigger priority table.
KPRID = 150 --- Gatemaster 15 AutopassDescription:
The software Autopass trigger
for Gatemaster 15 which is commonly known as the high rate minimum bias hardware trigger.
Goto Top or PRUDE trigger priority table.
KPRID = 170 --- neutrDescription:
Any neutral event not tagged.
Requirements:
Bits ON : 0000 0000 -- 0000 0000
Bits OFF: 0000 03F0 -- 0000 0000
Gatemaster 4 or 5
Goto Top or PRUDE trigger priority table.
Goto Top.
Goto Top.
Autopass is a software prescale factor used to automatically
pass events from a hardware trigger.
Events which pass the Autopass software prescale factor are
automatically written to tape independent of any
PRUDE filter-analysis result.
An Autopass value of 1 means that every hardware trigger of
that Gatemaster channel is written.
Large non-1 values (>10) are used to pass a percentage (<10%)
of the hardware trigger to check the efficiency of the PRUDE
filtering.
Autopass Description
The PRUDE prescale factor is applied after an event has been analyzed and
assign to a software trigger but before written to tape.
Non-1 values have been used to tune the tape writing rates.
PRUDE prescaling was only applied to KPRIDs of 11
and 51 during E835 running.
PRUDE Prescale Description
Below are two tables (one for each PRUDE trigger word) with the bits
description used in PRUDE.
PRUDE Bits Description
Note PRUDE uses 37/75MeV CCAL clustering thresholds,
a window of 100-170MeV for pi0 and 450-650MeV for eta, and
the difference between formed and exclusive is that the latter
excludes the two clusters combining with other clusters to form
another acceptable mass.
Word 1 | Description |
| 0000 0001 | 1 CCAL Cluster | 0000 0002 | 2 CCAL Clusters | 0000 0004 | 3 CCAL Clusters | 0000 0008 | 4 CCAL Clusters | 0000 0010 | 5 CCAL Clusters | 0000 0020 | 6 CCAL Clusters | 0000 0040 | 7 CCAL Clusters | 0000 0080 | 8 CCAL Clusters | 0000 0100 | 9 CCAL Clusters | 0000 0200 | >9 CCAL Clusters | 0000 0400 | Cluster mass > 100MeV for 1st largest energy cluster | 0000 0800 | Cluster mass > 100MeV for 2nd largest energy cluster | 0000 1000 | 1st largest Cluster satisfies 2 body kinematics * | 0000 2000 | 2nd largest Cluster satisfies 2 body kinematics * | 0000 4000 | Total CCAL Energy >85% of expected lab energy | 0000 8000 | Total CCAL Energy >90% of expected lab energy | 0001 0000 | >0 pi0 formed by any pairing of CCAL clusters | 0002 0000 | >0 exclusive pairings of clusters forming pi0 | 0004 0000 | 1 exclusive pairing of clusters forming pi0 | 0008 0000 | 2 exclusive pairings of clusters forming pi0 | 0010 0000 | >2 exclusive pairings of clusters forming pi0 | 0020 0000 | >0 eta formed by any pairing of CCAL clusters | 0040 0000 | >0 exclusive pairings of clusters forming eta | 0080 0000 | 1 exclusive pairing of clusters forming eta | 0100 0000 | 2 exclusive pairings of clusters forming eta | 0200 0000 | >2 exclusive pairings of clusters forming eta | 0400 0000 | any pairing of clusters having invariant mass >2.0GeV | 0800 0000 | any pairing of clusters having invariant mass >2.2GeV | 1000 0000 | any pairing of clusters having invariant mass >2.5GeV | 2000 0000 | any pairing of clusters having invariant mass >2.7GeV ** | 4000 0000 | any pairing of clusters having invariant mass >3.3GeV | 8000 0000 | a cluster consistent with a recoil gamma ray |
Word 2 Bits | Description | 0000 0001 | invariant mass >2.2GeV | 0000 0002 | invariant mass >2.5GeV | 0000 0004 | 2 electron tracks | 0000 0008 | 1 electron track and H2=2 | 0000 0010 | akin and acopl <500mrad | 0000 0020 | cerenkov hits associated with CCAL clusters | 0000 0040 | product of electron weight >2 | 0000 0080 | product of electron weight >5 | 0000 0100 | unused | 0000 0200 | unused | 0000 0400 | unused | 0000 0800 | unused | 0000 1000 | ABS of P_x or P_y is >250MeV | 0000 2000 | ABS of P_x or P_y is >500MeV | 0000 4000 | P_trans is >300MeV | 0000 8000 | P_trans is >600MeV | 0001 0000 | #H2=3,4 and #SFB=3,4 and SFB1 not hit | 0002 0000 | H2 topology | 0004 0000 | hodoscope association | 0008 0000 | straws association | 0010 0000 | kaon opening angle | 0020 0000 | phi coplanarity | 0040 0000 | phi-phi kinematics | 0080 0000 | unused | 0100 0000 | unused | 0200 0000 | unused | 0400 0000 | unused | 0800 0000 | unused | 1000 0000 | unused | 2000 0000 | unused | 4000 0000 | unused | 8000 0000 | unused |
Goto Top.
E835 Home Page