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Add histograms for nightly validation of track CRV extrapolation #2023

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Merged
oksuzian merged 1 commit into from
Oct 7, 2026
Merged

Add histograms for nightly validation of track CRV extrapolation #2023

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13 changes: 13 additions & 0 deletions Validation/inc/ValKalSeed.hh
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Original file line number Diff line number Diff line change
Expand Up @@ -70,6 +70,19 @@ class ValKalSeed {
TH1D* _hSTdP;
TH1D* _hNIPA;
TH1D* _hIPAdP;
// intersections with the CRV sectors (from the CentralHelix and KinematicLine extrapolation)
std::map<SurfaceIdDetail::enum_type,int> _crvbin; // CRV sector -> bin of _hCRVSector
TH1D* _hNCRV;
TH1D* _hCRVSector;
TH1D* _hCRVInBounds;
TH1D* _hCRVdT;
TH1D* _hCRVMom;
TH1D* _hCRVMomErr;
TH1D* _hCRVdP;
TH1D* _hCRVx;
TH1D* _hCRVy;
TH1D* _hCRVz;
TH1D* _hNCRVSB;
};
} // namespace mu2e
#endif
44 changes: 43 additions & 1 deletion Validation/src/ValKalSeed.cc
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Expand Up @@ -66,6 +66,25 @@ namespace mu2e {
_hSTdP = tfs.make<TH1D>( "STdP", "Momentum Change Crossing a ST Foil;MeV", 100, -1.0, 0.0);
_hNIPA = tfs.make<TH1D>( "NIPA", "Number of IPA intersections", 20, -0.5, 19.5);
_hIPAdP = tfs.make<TH1D>( "IPAdP", "Momentum Change Crossing the IPA;MeV", 100, -0.5, 0.0);
// one labelled bin per CRV sector SurfaceId, so new sectors appear without code changes
for (auto const& [sid, sname] : SurfaceIdDetail::names()) {
if (sid >= SurfaceIdDetail::CRV_EX && sid < SurfaceIdDetail::CRV_StrongBack) {
int ibin = static_cast<int>(_crvbin.size()) + 1;
_crvbin[sid] = ibin;
}
}
_hNCRV = tfs.make<TH1D>( "NCRV", "Number of CRV sector intersections", 20, -0.5, 19.5);
_hCRVSector = tfs.make<TH1D>( "CRVSector", "CRV sector intersected", _crvbin.size(), 0.5, _crvbin.size()+0.5);
for (auto const& [sid, ibin] : _crvbin) _hCRVSector->GetXaxis()->SetBinLabel(ibin, SurfaceIdDetail::names().at(sid).c_str());
_hCRVInBounds = tfs.make<TH1D>( "CRVInBounds", "CRV intersection inside the sector bounds", 2, -0.5, 1.5);
_hCRVdT = tfs.make<TH1D>( "CRVdT", "CRV intersection time - t0;ns", 100, -100.0, 100.0);
_hCRVMom = tfs.make<TH1D>( "CRVMom", "Momentum at the CRV;MeV/c", 100, 0.0, 50000.0);
_hCRVMomErr = tfs.make<TH1D>( "CRVMomRelErr", "Relative momentum error at the CRV", 100, 0.0, 0.5);
_hCRVdP = tfs.make<TH1D>( "CRVdP", "Momentum Change Crossing a CRV sector;MeV", 100, -150.0, 0.0);
_hCRVx = tfs.make<TH1D>( "CRVx", "CRV intersection x;mm", 100, -8000.0, 4000.0);
_hCRVy = tfs.make<TH1D>( "CRVy", "CRV intersection y;mm", 100, -3000.0, 6000.0);
_hCRVz = tfs.make<TH1D>( "CRVz", "CRV intersection z;mm", 100, -10000.0, 20000.0);
_hNCRVSB = tfs.make<TH1D>( "NCRVSB", "Number of CRV strongback intersections", 20, -0.5, 19.5);
int ibin = 1;
_hCuts->GetXaxis()->SetBinLabel(ibin++, "MC Primary"); // bin 1, first visible
_hCuts->GetXaxis()->SetBinLabel(ibin++, "MC Momentum");
Expand All @@ -89,7 +108,7 @@ namespace mu2e {
auto const& ptable = GlobalConstantsHandle<ParticleDataList>();
// increment this by 1 any time the defnitions of the histograms or the
// histogram contents change, and will not match previous versions
_hVer->Fill(14.0);
_hVer->Fill(15.0);

_hN->Fill(coll.size());
for (auto const& ks : coll) {
Expand Down Expand Up @@ -172,6 +191,29 @@ namespace mu2e {
_hNIPA->Fill(ipainters.size());
for (auto ipainter : ipainters)
_hIPAdP->Fill(ipainter->dMom());
unsigned ncrv(0), ncrvsb(0);
for (auto const& inter : ks.intersections()) {
auto sid = inter.surfaceId().id().id();
if (sid == SurfaceIdDetail::CRV_StrongBack) {
++ncrvsb;
continue;
}
auto ibin = _crvbin.find(sid);
if (ibin == _crvbin.end()) continue;
++ncrv;
_hCRVSector->Fill(ibin->second);
_hCRVInBounds->Fill(inter.inBounds() ? 1.0 : 0.0);
_hCRVdT->Fill(inter.time() - ks.t0Val());
_hCRVMom->Fill(inter.mom());
if (inter.mom() > 0.0) _hCRVMomErr->Fill(inter.momerr()/inter.mom());
_hCRVdP->Fill(inter.dMom());
auto pos = inter.position3();
_hCRVx->Fill(pos.X());
_hCRVy->Fill(pos.Y());
_hCRVz->Fill(pos.Z());
}
_hNCRV->Fill(ncrv);
_hNCRVSB->Fill(ncrvsb);

_hp->Fill(p*recoCharge);
_hp2->Fill(p*recoCharge);
Expand Down