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High-KE capture proton trigger bands (apr_proton_p335/p250/p150) #191

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Merged
michaelmackenzie merged 7 commits into from
Nov 11, 2026
Merged

High-KE capture proton trigger bands (apr_proton_p335/p250/p150) #191

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0ace26f
Initial updates for proton triggering
michaelmackenzie Oct 21, 2026
b6cb805
Update proton triggers
michaelmackenzie Oct 24, 2026
2b66d5f
Merge branch 'main' into high-ke-protons
michaelmackenzie Nov 10, 2026
45837cc
Rename apr_proton to apr_proton_p335; add proton paths to val and mds…
michaelmackenzie Nov 10, 2026
062beb8
Merge remote-tracking branch 'mu2e/main' into high-ke-protons
michaelmackenzie Nov 10, 2026
25c38f1
Remove the proton-band mass cut; rescale val/mds prescales
michaelmackenzie Nov 10, 2026
60c82a9
physMenu: run the proton bands unprescaled
michaelmackenzie Nov 11, 2026
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64 changes: 50 additions & 14 deletions core/filters/trigAprFilters.fcl
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,15 @@ AprHelixSelections_pos : { # downstream e-minus/upstream e-plus
AprHelixSelections_neg : { # downstream e-plus/upstream e-minus
@table::AprHelixSelections_pos
}
AprProtonHelixSelection : { # base for the proton bands (AprProton*HSFilter)
@table::AprHelixSelections_pos
doHelicityCheck: false
maxAbsLambda: 2000
minAbsLambda: 40
maxD0: 600
minD0: -600
minNStrawHits: 20
}
AprTrackSelections_neg_de : { # downstream e-minus
fitdirection: @local::FitDir.downstream
fitparticle: @local::Particle.eminus
Expand Down Expand Up @@ -86,12 +95,16 @@ TrigAprFilters:{
eventModeConfig : [ { eventMode: OnSpill prescale:-1}, { eventMode: OffSpill prescale:-1} ]}
AprHlx30PS : { module_type: PrescaleEvent
eventModeConfig : [ { eventMode: OnSpill prescale:-1}, { eventMode: OffSpill prescale:-1} ]}
AprProtonPS : { module_type: PrescaleEvent
AprProtonP335PS : { module_type: PrescaleEvent
eventModeConfig : [ { eventMode: OnSpill prescale:-1}, { eventMode: OffSpill prescale:-1} ]}
AprTCPS : { module_type: PrescaleEvent
eventModeConfig : [ { eventMode: OnSpill prescale:-1}, { eventMode: OffSpill prescale:-1} ]}
AprTCCaloPS : { module_type: PrescaleEvent
eventModeConfig : [ { eventMode: OnSpill prescale:-1}, { eventMode: OffSpill prescale:-1} ]}
AprProtonP250PS : { module_type: PrescaleEvent
eventModeConfig : [ { eventMode: OnSpill prescale:-1}, { eventMode: OffSpill prescale:-1} ]}
AprProtonP150PS : { module_type: PrescaleEvent
eventModeConfig : [ { eventMode: OnSpill prescale:-1}, { eventMode: OffSpill prescale:-1} ]}

AprTrkDe80m70pD0200HSFilter: {
module_type: "HelixFilter"
Expand Down Expand Up @@ -764,26 +777,49 @@ TrigAprFilters:{
ComboHitCollection : "TrigMakePH"
}

AprProtonHSFilter: {
# Muon capture protons and other charged capture particles (d, t, He3, alpha), in momentum bands
# sharing TrigAprProtonHelixFinder. The protons are forward (|lambda| ~ 1000 mm). There is no
# particle-ID cut: species are separated offline. The straw hit edep is compressed above ~4 keV
# and capped by the ADC near 5.8 keV, and a trigger cut on the mass from p and the helix t vs z
# slope (HelixFilter maxMass) would depend on the timing calibration.
AprProtonP335HSFilter: { # p > 335 MeV/c (KE > ~58 MeV)
helixSeedCollection: "TrigAprProtonHelixMerger"
module_type: "HelixFilter"
useTrackerStatus: true
posHelicitySelection : {
@table::AprHelixSelections_pos
maxAbsLambda: 1000
maxD0: 600
minAbsLambda: 40
minD0: -600
minMomentum: 80
@table::AprProtonHelixSelection
minMomentum: 335
}
negHelicitySelection : {
@table::AprProtonHelixSelection
minMomentum: 335
}
}
AprProtonP250HSFilter: { # p > 250 MeV/c (KE > ~33 MeV), prescaled
helixSeedCollection: "TrigAprProtonHelixMerger"
module_type: "HelixFilter"
useTrackerStatus: true
posHelicitySelection : {
@table::AprProtonHelixSelection
minMomentum: 250
}
negHelicitySelection : {
@table::AprProtonHelixSelection
minMomentum: 250
}
}
AprProtonP150HSFilter: { # p > 150 MeV/c (KE > ~12 MeV), heavily prescaled
helixSeedCollection: "TrigAprProtonHelixMerger"
module_type: "HelixFilter"
useTrackerStatus: true
posHelicitySelection : {
@table::AprProtonHelixSelection
minMomentum: 150
minNStrawHits: 15
}
negHelicitySelection : {
@table::AprHelixSelections_neg
maxAbsLambda: 1000
maxD0: 600
minAbsLambda: 40
minD0: -600
minMomentum: 80
@table::AprProtonHelixSelection
minMomentum: 150
minNStrawHits: 15
}
}
Expand Down
12 changes: 11 additions & 1 deletion core/producers/trigAprProducers.fcl
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,10 @@ TrigAprProducers : {
maxEDepAvg : 100.
maxNHitsRatio : 1.5
doEDepFlag : false
# heavy capture particles: the defaults (400 / 140 MeV/c) cut deuterons above KE ~ 42 MeV
# and tritons above ~ 29 MeV (triton endpoint p ~ 640 MeV/c)
maxHelixMomentum : 800.
maxHelixPerpMomentum : 300.
}

TrigAprHelixMerger: {
Expand Down Expand Up @@ -138,7 +142,13 @@ TrigAprProducers : {
AprHlx30TriggerInfoMerger: {
module_type: "MergeTriggerInfo"
}
AprProtonTriggerInfoMerger: {
AprProtonP335TriggerInfoMerger: {
module_type: "MergeTriggerInfo"
}
AprProtonP250TriggerInfoMerger: {
module_type: "MergeTriggerInfo"
}
AprProtonP150TriggerInfoMerger: {
module_type: "MergeTriggerInfo"
}
AprTCTriggerInfoMerger: {
Expand Down
16 changes: 13 additions & 3 deletions core/trigSequences.fcl
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Original file line number Diff line number Diff line change
Expand Up @@ -231,11 +231,21 @@ TrigTrkPaths:{
TrigTZClusterFinder, AprHlx50TCFilter, TrigAprHelixFinder,
TrigAprHelixMerger, AprHlx50HSFilter, AprHlx30TriggerInfoMerger ]

apr_proton : [ @sequence::TrigRecoSequences.cfoDataGen,
AprProtonPS, @sequence::TrigRecoSequences.calReco,
apr_proton_p335 : [ @sequence::TrigRecoSequences.cfoDataGen,
AprProtonP335PS, @sequence::TrigRecoSequences.calReco,
@sequence::TrigRecoSequences.trkPrepareHits,
TrigTZClusterFinder, AprProtonTCFilter, TrigAprProtonHelixFinder,
TrigAprProtonHelixMerger, AprProtonHSFilter, AprProtonTriggerInfoMerger ]
TrigAprProtonHelixMerger, AprProtonP335HSFilter, AprProtonP335TriggerInfoMerger ]
apr_proton_p250 : [ @sequence::TrigRecoSequences.cfoDataGen,
AprProtonP250PS, @sequence::TrigRecoSequences.calReco,
@sequence::TrigRecoSequences.trkPrepareHits,
TrigTZClusterFinder, AprProtonTCFilter, TrigAprProtonHelixFinder,
TrigAprProtonHelixMerger, AprProtonP250HSFilter, AprProtonP250TriggerInfoMerger ]
apr_proton_p150 : [ @sequence::TrigRecoSequences.cfoDataGen,
AprProtonP150PS, @sequence::TrigRecoSequences.calReco,
@sequence::TrigRecoSequences.trkPrepareHits,
TrigTZClusterFinder, AprProtonTCFilter, TrigAprProtonHelixFinder,
TrigAprProtonHelixMerger, AprProtonP150HSFilter, AprProtonP150TriggerInfoMerger ]

apr_TC : [ @sequence::TrigRecoSequences.cfoDataGen,
AprTCPS, @sequence::TrigRecoSequences.calReco,
Expand Down
22 changes: 22 additions & 0 deletions data/mdsMenu.json
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Original file line number Diff line number Diff line change
Expand Up @@ -256,6 +256,28 @@
]
},

"apr_proton_p335" : {
"bit" : 270 ,
"enabled": 1,
"eventModeConfig": [{"eventMode":"OnSpill", "prescale":100, "streams": [ "physics_main", "dqm_trigger" ] },
{"eventMode":"OffSpill", "prescale":-1, "streams": [ "cosmics_main", "physics_trk_calib" ] }
]
},
"apr_proton_p250" : {
"bit" : 271 ,
"enabled": 1,
"eventModeConfig": [{"eventMode":"OnSpill", "prescale":800, "streams": [ "physics_main", "dqm_trigger" ] },
{"eventMode":"OffSpill", "prescale":-1, "streams": [ "cosmics_main", "physics_trk_calib" ] }
]
},
"apr_proton_p150" : {
"bit" : 272 ,
"enabled": 1,
"eventModeConfig": [{"eventMode":"OnSpill", "prescale":40000, "streams": [ "physics_main", "dqm_trigger" ] },
{"eventMode":"OffSpill", "prescale":-1, "streams": [ "cosmics_main", "physics_trk_calib" ] }
]
},

"mpr_TrkDe_80m70p_D0200": {
"bit" : 275 ,
"enabled": 1,
Expand Down
18 changes: 16 additions & 2 deletions data/physMenu.json
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Original file line number Diff line number Diff line change
Expand Up @@ -256,10 +256,24 @@
]
},

"apr_proton" : {
"apr_proton_p335" : {
"bit" : 270 ,
"enabled": 1,
"eventModeConfig": [{"eventMode":"OnSpill", "prescale":-1, "streams": [ "physics_main", "dqm_trigger" ] },
"eventModeConfig": [{"eventMode":"OnSpill", "prescale":1, "streams": [ "physics_main", "dqm_trigger" ] },
{"eventMode":"OffSpill", "prescale":-1, "streams": [ "cosmics_main", "physics_trk_calib" ] }
]
},
"apr_proton_p250" : {
"bit" : 271 ,
"enabled": 1,
"eventModeConfig": [{"eventMode":"OnSpill", "prescale":1, "streams": [ "physics_main", "dqm_trigger" ] },
{"eventMode":"OffSpill", "prescale":-1, "streams": [ "cosmics_main", "physics_trk_calib" ] }
]
},
"apr_proton_p150" : {
"bit" : 272 ,
"enabled": 1,
"eventModeConfig": [{"eventMode":"OnSpill", "prescale":1, "streams": [ "physics_main", "dqm_trigger" ] },
{"eventMode":"OffSpill", "prescale":-1, "streams": [ "cosmics_main", "physics_trk_calib" ] }
]
},
Expand Down
22 changes: 22 additions & 0 deletions data/valMenu.json
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Original file line number Diff line number Diff line change
Expand Up @@ -248,6 +248,28 @@
]
},

"apr_proton_p335" : {
"bit" : 270 ,
"enabled": 1,
"eventModeConfig": [{"eventMode":"OnSpill", "prescale":100, "streams": [ "physics_main", "dqm_trigger" ] },
{"eventMode":"OffSpill", "prescale":-1, "streams": [ "cosmics_main", "physics_trk_calib" ] }
]
},
"apr_proton_p250" : {
"bit" : 271 ,
"enabled": 1,
"eventModeConfig": [{"eventMode":"OnSpill", "prescale":800, "streams": [ "physics_main", "dqm_trigger" ] },
{"eventMode":"OffSpill", "prescale":-1, "streams": [ "cosmics_main", "physics_trk_calib" ] }
]
},
"apr_proton_p150" : {
"bit" : 272 ,
"enabled": 1,
"eventModeConfig": [{"eventMode":"OnSpill", "prescale":40000, "streams": [ "physics_main", "dqm_trigger" ] },
{"eventMode":"OffSpill", "prescale":-1, "streams": [ "cosmics_main", "physics_trk_calib" ] }
]
},

"mpr_TrkDe_80m70p_D0200": {
"bit" : 275 ,
"enabled": 1,
Expand Down
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